CN209671514U - Secondary spring device for hydraulic bushing - Google Patents
Secondary spring device for hydraulic bushing Download PDFInfo
- Publication number
- CN209671514U CN209671514U CN201821766187.6U CN201821766187U CN209671514U CN 209671514 U CN209671514 U CN 209671514U CN 201821766187 U CN201821766187 U CN 201821766187U CN 209671514 U CN209671514 U CN 209671514U
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- CN
- China
- Prior art keywords
- spring device
- secondary spring
- auxiliary
- sub
- support ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- 239000012530 fluid Substances 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims description 12
- 230000010412 perfusion Effects 0.000 claims description 10
- 238000004073 vulcanization Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
The utility model provides a kind of secondary spring device for hydraulic bushing, and wherein hydraulic bushing includes the housing that mandrel, the runner body for the sleeve-shaped being set on mandrel and compression type are set in the radial outside of runner body.Secondary spring device includes the axially external support ring for being arranged on mandrel and being in runner body.Support ring is constructed to be permeable to jointly limit the auxiliary sap cavity for accommodating hydraulic fluid with housing.Support ring further includes the radially protruding part in auxiliary sap cavity, and radially protruding part is configured to and the inner surface of housing is sealed contacts, so that auxiliary sap cavity is separated into the second sub- chamber in axially external the first sub- chamber and axially inner side.
Description
Technical field
The utility model relates to secondary springs used in a kind of hydraulic bushing for vehicle, especially rail vehicle
Device.
Background technique
Hydraulic bushing is widely applied a kind of part in vehicle (such as automobile and rail vehicle), is mostly installed at vehicle
Suspension or bogie on, be used for buffering vibration and impact, to improve the stability and safety of vehicle driving.
Chinese patent literature CN108150536A discloses a kind of hydraulic bushing.The hydraulic bushing includes mandrel, is set in
First runner body on the outside of mandrel, and compress the housing for being set in the external side of first runner.Mandrel and first runner body it
Between gap in be filled with the first rubber bodies, constructed on the outer surface of first runner body fluted.The diameter in the first rubber bodies
To two sap cavities being relatively configured with for accommodating liquid, further groove and housing surround runner, and two sap cavities pass through runner
Connection.By the mobility between the hydraulic fluid in two sap cavities, the rigidity of adjustable hydraulic bushing, to realize raising
Vehicle driving, especially in the stability of Ackermann steer angle.
However in above-mentioned hydraulic bushing, the range of rigidity and damping adjusting is still limited.Therefore, uncommon in the art
Prestige provides a kind of hydraulic bushing, and having can be higher to provide for vehicle in the rigidity and damping of wider upper variation
Traveling stability and safety.
Utility model content
The utility model is intended to provide a kind of secondary spring device for hydraulic bushing, can bring for hydraulic bushing
The variation rigidity of enhancing, particularly axially on variation rigidity.
According to the utility model, a kind of secondary spring device for hydraulic bushing is provided, wherein the hydraulic bushing
Including mandrel, it is arranged the runner body of sleeve-shaped on the mandrel and diameter that compression type is set in the runner body is outside
The housing of side.The secondary spring device includes the axially external support for being arranged on the mandrel and being in the runner body
Ring, the support ring are constructed to be permeable to jointly limit the auxiliary sap cavity for accommodating hydraulic fluid with the housing.The branch
Pushing out ring further includes the radially protruding part in the auxiliary sap cavity, and the radially protruding part is configured to the interior table with the housing
The sealed contact in face, so that the auxiliary sap cavity to be separated into the second son in axially external the first sub- chamber and axially inner side
Chamber.
In a preferred embodiment, the radially protruding part is equipped with the intercommunicating pore axially extended, and being used for will be described
Assist the first sub- chamber and the second sub- chamber connection of sap cavity.
In a preferred embodiment, the radially protruding part includes multiple intercommunicating pores being uniformly distributed circumferentially.
In a preferred embodiment, the support ring further includes the auxiliary rubber body of vulcanization on it, so that described
Radially protruding part by the auxiliary rubber body with the inner surface of the housing is sealed contacts.
In a preferred embodiment, the auxiliary rubber body includes for being formed with the axial end portion of the runner body
The first part of sealed contact, the second part for forming sealed contact with the axial end portion of the housing, Yi Jiyong
The Part III of sealed contact is formed in the inner surface with the housing.
In a preferred embodiment, first part, second part and the Part III of the auxiliary rubber body are in axis
It is separated from each other upwards
In a preferred embodiment, it is embedded in the first part of the auxiliary rubber body and second part just
The gasket of property.
In a preferred embodiment, it is equipped with hydraulic fluid perfusion channel in the support ring, is used for described auxiliary
Liquid-aid cavity injects hydraulic fluid.
In a preferred embodiment, the hydraulic fluid perfusion channel includes lead to the support ring axially external
The horizontal branch of end, and lead to the vertical branch of the first sub- chamber of the auxiliary sap cavity.
In a preferred embodiment, the cross-sectional area of the first runner and length are according to required for hydraulic bushing
Radial dynamic rate determines, and the cross-sectional area of the intercommunicating pore and the length axial dynamic according to required for hydraulic bushing are rigid
Degree is to determine.
Hydraulic bushing according to the present utility model all has variation rigidity characteristic in the axial direction and radially, stiffness variation
Degree and excitation amplitude and frequency dependence.Due to assisting the presence of sap cavity, the damping effect of the hydraulic bushing in the axial direction is improved
It answers, has reached better effectiveness in vibration suppression.Meanwhile the connection between two sub- chambers of the auxiliary sap cavity of hydraulic bushing is dashed forward by radial
The intercommunicating pore in portion is realized out, is taken full advantage of the space in auxiliary sap cavity, is further enhanced what hydraulic bushing can be provided
The effect of variation rigidity.
Detailed description of the invention
Hereinafter the utility model will be described in more detail based on the embodiments and with reference to the accompanying drawings.Wherein:
Fig. 1 schematically show include one embodiment according to the present utility model secondary spring device it is hydraulic
The cross-sectional view of bushing.
Fig. 2 is the partial enlarged view of hydraulic bushing shown in Fig. 1, it is shown that one embodiment according to the present utility model
The structure of secondary spring device.
Fig. 3 shows the structure of the unvulcanized support ring for having rubber bodies, especially shows the hydraulic fluid in support ring
Perfusion channel.
Fig. 4 shows that vulcanization thereon has the structure of the support ring of rubber bodies.
In the accompanying drawings, identical component makes to be denoted by the same reference numerals.Attached drawing is not drawn according to actual ratio
System.
Specific embodiment
Below in conjunction with attached drawing, the utility model is described in further detail.It should be noted that term " axis herein
To " and " radial direction " respectively refer to the horizontal and vertical direction in Fig. 1.
Fig. 1 schematically show include the secondary spring device 50 of one embodiment according to the present utility model liquid
Press bushing 100.As shown in Figure 1, runner body 20 of the hydraulic bushing 100 including mandrel 10, the radial outside that mandrel 10 is arranged in, with
And the housing 30 of the radial outside of runner body 20 is set in a manner of compression.Runner body 20 is normally constructed to the shape of sleeve member
Formula.Mandrel 10 is usually preformed member, and in the embodiment shown in fig. 1, is configured to the form of Step Shaft.Mandrel 10
Both ends can for example be connected with the bogie of track train, and housing 30 is connected with positioning arm.It is also settable on mandrel 10 can
The inner sleeve 15 of choosing, as shown in Figure 1.Two axial end portions of housing 30 are radially bent towards mandrel 10, so as to form flange
32, to be conducive to the sealing of hydraulic bushing 100.
Rubber bodies 40 are filled in gap between mandrel 10 and runner body 20.It will be understood, however, that in being provided with
In the case where set 15, the first rubber bodies 40 be can be filled between inner sleeve 15 and runner body 20.It is provided with and is used in rubber bodies 40
Two main liquid cavities 45 of hydraulic fluid are accommodated, they are preferably configured to diametrically opposed.That is, the two main liquid cavities
45 all only partly extend in the circumferential, and diametrically opposed.Constructed on the outer surface of runner body 20 it is fluted, can
Spiral circle distribution form.In the assembled state, housing 30 is pressed on runner body 20, so that recessed on runner body 20
Slot is formd for hydraulic fluid in the first runner 42 wherein flowed.The both ends of first runner 42 respectively with two main liquid cavities 45
Connection.In addition, being configured with the liquid injection hole (not shown) for being used to inject hydraulic fluid being connected to first runner 42 on housing 30.
When track train resists the snakelike operation phase in straightway, wheel crosses curve in low speed to can afford high-frequency vibration
When, the wheel rim taken turns pair can recline rail, and vibration frequency is decreased obviously at this time.Under above two operating condition, the movement of wheel can be driven
Make mandrel 10 and housing 30 that relative motion occur, so that the main liquid cavity in front and the main liquid cavity in rear can respectively be sent out
Raw expansion and contraction.In this way, hydraulic fluid just can be flowed between two main liquid cavities 45 by first runner 42, thus phase
Have adjusted the rigidity of hydraulic bushing 100 with answering, so that train keeps stable operation.The rigidity of this variation is hydraulic bushing 100
An important performance.
The features described above and function of hydraulic bushing are as known in the art, such as can be refering to the Chinese special of the applicant
Sharp document CN108150536A, the patent document are incorporated herein by reference.
According to the utility model, as shown in Figure 1, being provided on the outside of two ends in the axial direction of runner body 20 auxiliary
Help spring arrangement 50.It is closed for holding to be formed in this way, secondary spring device 50 seals the axial end portion of runner body 20
Receive the chamber of hydraulic fluid, i.e. main liquid cavity 45.
Secondary spring device 50 includes the support ring 60 of rigidity, is mounted on mandrel 10.In the illustrated embodiment, mandrel
10 are configured to multi-diameter shaft, and therefore, support ring 60 is preferably mounted at the hierarchic structure of mandrel 10, to form good positioning
And it is more stably supported.Vulcanization has the second rubber bodies 70 in support ring 60, has been embedded in rigidity in the second rubber bodies 70
Gasket 55,56 (see Fig. 2).In this way, support ring 60 and gasket 55,56 form one by the second rubber bodies 70.
If Fig. 2 is more clearly illustrated, the second rubber bodies 70 of vulcanization include the part separated in two axial directions, i.e., close
The inboard portion 72 of the axial end portion of first runner body 20, and the exterior portion 74 of the axial end portion close to housing 30.Pass through
This set, the outer surface of the axial end portion of the inboard portion 72 and runner body 20 of the second rubber bodies 70, which is formed, to be sealed, and second
The exterior portion 74 of rubber bodies 70 (is specifically formed at turning over for the axial end portion of housing 30 with the axial end portion of housing 30
The inner surface on side 32) form sealing.In this way, in the inboard portion 72 of the second rubber bodies 70, the exterior portion of the second rubber bodies 70
74, closed auxiliary sap cavity 80 is formd between support ring 60 and housing 30, wherein hydraulic fluid can be accommodated.However with main liquid
Unlike chamber 45, the auxiliary sap cavity 80 in each secondary spring device 50 is configured to fully extend in the circumferential, that is, auxiliary
Sap cavity 80 extended 360 degree in the circumferential.It should be noted that auxiliary sap cavity 80 is configured to not be connected to main liquid cavity 45.
In preferred embodiment as shown in the figure, support ring 60 further includes the protruding portion 62 extended radially out.It is prominent
Portion 62 is presented axially between the inboard portion 72 and exterior portion 74 of the second rubber bodies 70.According to the utility model, support
The protruding portion 62 of ring 60 is in auxiliary sap cavity 80, and is extended radially out always, until the inner surface shape with housing 30
At sealed contact.
Preferably, as shown in Fig. 2, being again provided with the third portion of the second rubber bodies 70 on the protruding portion 62 of support ring 60
Divide 76.In this way, support ring 60 by the Part III 76 of the second rubber bodies 70 and the inner surface of housing 30 formed it is sealed contact,
To which sap cavity 80 will be assisted to be separated into the first sub- chamber 82 and the second sub- chamber 84 adjacent to each other in two axial directions.As shown, auxiliary
The sub- chamber 82 of the first of liquid-aid cavity 80 is in axially external, and the second sub- chamber 84 is in axially inner side.
According to the utility model, offers and axially extend in the protruding portion 62 of support ring 60 extended radially out
Intercommunicating pore 90, so that the first sub- chamber 82 and the second sub- chamber 84 adjacent to each other in the axial direction for assisting sap cavity 80 are interconnected.This
Sample, hydraulic fluid just can flow between the first sub- chamber 82 and the second sub- chamber 84 of auxiliary sap cavity 80.With hydraulic fluid
Flowing, enables the rigidity of hydraulic bushing 100 in the axial direction to change in the larger context, enhances hydraulic bushing 100
The effect of variation rigidity in axial direction achievees the purpose that axial low frequency Low rigidity and high frequency high rigidity.
In addition, when hydraulic bushing 100 bears axial sinusoidal excitation, the protruding portion 62 of support ring 60 extended radially out
Moving back and forth in axial direction can be generated, to squeeze the first sub- chamber 82 and the second sub- chamber 84 being located at left and right sides of it.In this way, its
In can generate internal high pressure in a sub- chamber (such as first sub- chamber 82), and another sub- chamber (such as second sub- chamber 84) is corresponding
Ground generates internal low-voltage, so that hydraulic fluid can be flowed into from the sub- chamber (such as first sub- chamber 82) with internal high pressure has inside
The sub- chamber (such as second sub- chamber 84) of low pressure.Due to pressure difference existing between two sub- chambers, hydraulic bushing 100 is caused to generate
Variation rigidity in axial direction.Which further enhances the effects of the axial variation rigidity of hydraulic bushing 100, reach the low frequency in axial direction
The purpose of Low rigidity and high frequency high rigidity.
In addition, since support ring 60 passes through the inner surface formation sealing of the Part III 76 and housing 30 of the second rubber bodies 70
Formula contact, the Part III 76 of the second rubber bodies 70 can also provide the displacement of variation radially.This is conducive to hydraulic bushing 100
Stiffness variation radially.
In addition, enabling hydraulic fluid in auxiliary sap cavity 80 by the intercommunicating pore 90 being provided in radially protruding part 62
It is flowed between first sub- chamber 82 and the second sub- chamber 84, so that do not need to add additional auxiliary flow body in auxiliary sap cavity 80,
So as to fully utilize the space in auxiliary sap cavity 80.In this way, being formed by hydraulic bushing 100 with more compact structure.
Especially, when product bears axial load, hydraulic fluid is by intercommunicating pore in the first sub- chamber 82 and second for assisting sap cavity 80
It is flowed back and forth between sub- chamber 84, so that hydraulic fluid generates when through the entrance of intercommunicating pore 90, outlet and hole internal channel
Damping.This is embodied in hydraulic fluid and flows through caused by above-mentioned zone along stroke pressure loss and local pressure loss.This into
One step enhances the effect of the variation rigidity in the axial direction of hydraulic bushing 100.
It is not intended to be bound by any theory, according to the utility model, the intercommunicating pore 90 in sap cavity 80 is assisted mainly to use
For hydraulic bushing 100 variation rigidity in axial direction is provided, and the first runner 42 in main liquid cavity 45 is mainly used to as hydraulic bushing
100 provide variation rigidity radially.Therefore, the geometric parameters such as cross-sectional area and length of first runner 42 and intercommunicating pore 90 can be with
It is designed according to the requirement of radial variation rigidity and axial variation rigidity for hydraulic bushing 100.
In a preferred embodiment, in support ring 60 circumferentially on be uniformly arranged six companies being separated from each other
Through-hole 90.In this way, mobility of the hydraulic fluid between the first sub- chamber 82 and the second sub- chamber 84 of auxiliary sap cavity 80
It is improved, thus further improves the responsiveness of 100 pairs of hydraulic bushing axial variation rigidities.
According to the utility model, the pad of rigidity has been respectively embedded into the exterior portion 74 of rubber bodies 70 and inboard portion 72
Piece 55 and 56, to provide further axial rigidity for hydraulic bushing 100.Other than the effect of axial rigidity is provided,
Gasket 56 can also squeeze the second adjacent rubber bodies 70, to sufficiently ensure main liquid cavity 45 and assist the flow of pressurized in sap cavity 80
The sealing effect of body.Dummy slider 55 then being capable of the second rubber bodies 70 with the flange 32 of metal-coating 30 and between the two
Exterior portion 74 be collectively formed for auxiliary sap cavity 80 sealing.The leakproofness of sap cavity 80 is assisted to obtain further as a result,
Raising.
According to the utility model, hydraulic fluid perfusion channel 95 is additionally provided in support ring 60.As shown in figure 3, hydraulic
Fluid perfusion channel 95 includes that the horizontal branch 96 for leading to the axial end portion of support ring 60 and one end are connected to horizontal branch 96
And the other end leads to the vertical branch 94 of auxiliary sap cavity 80.In this way, can use hydraulic after hydraulic bushing 100 assembles
Hydraulic fluid is injected to auxiliary sap cavity 80 in fluid perfusion channel 95.After injection is completed, plug (not shown) can be used for example
The horizontal branch 96 of hydraulic fluid perfusion channel 95 is blocked.
As shown in Fig. 2, the vertical branch 94 of hydraulic fluid perfusion channel 95 be arranged to lead to auxiliary sap cavity 80 in axis
The sub- chamber 82 of first outward.Thus, it is possible to simplify structure, and difficulty of processing is reduced, save the cost.
It should be noted that being provided at the axial ends of first runner body as described above according to the utility model
Secondary spring device 50.However, it is also possible to only one of them axial end portion uses secondary spring device 50 as described above,
And another axial end portion uses common sealing element.It is close to be formed that this common sealing element only needs provide sealing effect
The main liquid cavity closed is that those skilled in the art is easy design.
Although the present utility model has been described by reference to the preferred embodiments, but in the model for not departing from the utility model
In the case where enclosing, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as not depositing
In structural conflict, items technical characteristic mentioned in the various embodiments be can be combined in any way.The utility model
It is not limited to specific embodiment disclosed herein, but is included all technical solutions falling within the scope of the claims.
Claims (9)
1. a kind of secondary spring device for hydraulic bushing, wherein the hydraulic bushing includes mandrel, is set in the mandrel
On sleeve-shaped runner body and compression type be set in the runner body radial outside housing,
The secondary spring device includes the axially external support ring for being arranged on the mandrel and being in the runner body, institute
Support ring is stated to be constructed to be permeable to jointly limit the auxiliary sap cavity for accommodating hydraulic fluid with the housing,
It is characterized in that, the support ring further includes the radially protruding part in the auxiliary sap cavity, the radially protruding part
It is configured to and the inner surface of the housing is sealed contacts, to being separated into the auxiliary sap cavity in axially external first
Second sub- chamber of sub- chamber and axially inner side.
2. secondary spring device according to claim 1, which is characterized in that the radially protruding part is equipped with and axially extends
Intercommunicating pore, for the first sub- chamber of the auxiliary sap cavity and the second sub- chamber to be connected to.
3. secondary spring device according to claim 2, which is characterized in that the radially protruding part include it is multiple circumferentially
Equally distributed intercommunicating pore.
4. according to claim 1 to secondary spring device described in any one of 3, which is characterized in that the support ring further includes
The auxiliary rubber body of vulcanization on it, so that the radially protruding part passes through the inner surface of the auxiliary rubber body and the housing
Sealed contact.
5. secondary spring device according to claim 4, which is characterized in that the auxiliary rubber body include for it is described
The axial end portion of runner body forms the first part of sealed contact, for forming sealed connect with the axial end portion of the housing
The second part of touching, and the Part III for forming sealed contact with the inner surface of the housing.
6. secondary spring device according to claim 5, which is characterized in that the first part of the auxiliary rubber body,
Two parts and Part III are separated from each other in the axial direction, and the Part III is in the first part and second part
Between.
7. secondary spring device according to claim 5, which is characterized in that the auxiliary rubber body first part and
Rigid gasket is embedded in second part.
8. according to claim 1 to secondary spring device described in any one of 3, which is characterized in that set in the support ring
There is hydraulic fluid perfusion channel, for injecting hydraulic fluid to the auxiliary sap cavity.
9. secondary spring device according to claim 8, which is characterized in that the hydraulic fluid perfusion channel includes leading to
The horizontal branch of the axially external end of the support ring, and lead to the vertical branch of the first sub- chamber of the auxiliary sap cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821766187.6U CN209671514U (en) | 2018-10-30 | 2018-10-30 | Secondary spring device for hydraulic bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821766187.6U CN209671514U (en) | 2018-10-30 | 2018-10-30 | Secondary spring device for hydraulic bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671514U true CN209671514U (en) | 2019-11-22 |
Family
ID=68560861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821766187.6U Withdrawn - After Issue CN209671514U (en) | 2018-10-30 | 2018-10-30 | Secondary spring device for hydraulic bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268440A (en) * | 2018-10-30 | 2019-01-25 | 株洲时代新材料科技股份有限公司 | Secondary spring device for hydraulic bushing |
-
2018
- 2018-10-30 CN CN201821766187.6U patent/CN209671514U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268440A (en) * | 2018-10-30 | 2019-01-25 | 株洲时代新材料科技股份有限公司 | Secondary spring device for hydraulic bushing |
| CN109268440B (en) * | 2018-10-30 | 2024-04-09 | 株洲时代新材料科技股份有限公司 | Auxiliary spring device for hydraulic bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191122 Effective date of abandoning: 20240409 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191122 Effective date of abandoning: 20240409 |