CN109236939A - Hydraulic bushing - Google Patents
Hydraulic bushing Download PDFInfo
- Publication number
- CN109236939A CN109236939A CN201811273576.XA CN201811273576A CN109236939A CN 109236939 A CN109236939 A CN 109236939A CN 201811273576 A CN201811273576 A CN 201811273576A CN 109236939 A CN109236939 A CN 109236939A
- Authority
- CN
- China
- Prior art keywords
- runner
- hydraulic bushing
- hydraulic
- mandrel
- sap cavity
- 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- Withdrawn
Links
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000010412 perfusion Effects 0.000 claims description 9
- 238000004073 vulcanization Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 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
- 230000005284 excitation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1409—Units of the bushing type, i.e. loaded predominantly radially characterised by buffering features or stoppers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
- F16F13/14—Units of the bushing type, i.e. loaded predominantly radially
- F16F13/1463—Units of the bushing type, i.e. loaded predominantly radially characterised by features of passages between working chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Abstract
The present invention provides a kind of hydraulic bushings, comprising: mandrel；It is set in the first runner body of the sleeve-shaped on mandrel, the first rubber bodies are filled in gap between mandrel and first runner body, the first runner for hydraulic fluid is configured on the outer surface of first runner body, wherein, two main liquid cavities for accommodating hydraulic fluid are diametrically opposite configured in the first rubber bodies, they are communicated with each other by first runner；Housing, compression type are set in the radial outside of first runner body；And at least one axially external seal assembly of first runner body is set, the auxiliary sap cavity for accommodating hydraulic fluid is collectively defined with housing.Seal assembly includes the support ring being set on mandrel comprising the radially protruding part extended towards housing in auxiliary sap cavity, the gap between radially protruding part and housing forms communicating passage.
Description
Technical field
The present invention relates to a kind of hydraulic bushings for vehicle, especially rail vehicle.
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.
Summary of the invention
The present invention is intended to provide a kind of novel hydraulic bushing, it can be in the radial and axial upper function for realizing variation rigidity
Energy.
According to the present invention, a kind of hydraulic bushing is provided, comprising: mandrel；It is arranged the of sleeve-shaped on the mandrel
One runner body is filled with the first rubber bodies in the gap between the mandrel and the first runner body, described first-class
The first runner for hydraulic fluid is configured on the outer surface of road body, wherein in first rubber bodies diametrically opposite
Two main liquid cavities for accommodating hydraulic fluid are configured with, described two main liquid cavities are communicated with each other by the first runner；Outside
Set, compression type are set in the radial outside of the first runner body；And at least one of the first runner body is set
Axially external seal assembly, the seal assembly and the housing collectively define the auxiliary liquid for accommodating hydraulic fluid
Chamber.Wherein, the seal assembly includes the support ring being arranged on the mandrel, and the support ring includes being in the auxiliary liquid
The intracavitary radially protruding part extended towards the housing, the gap between the radially protruding part and the housing forms company
Circulation passage.
In a preferred embodiment, the auxiliary sap cavity is separated into axially external by the radially protruding part
First sub- chamber and the second sub- chamber in axially inner side, the communicating passage connect the described first sub- chamber and the second sub- chamber each other
It is logical.
In a preferred embodiment, the seal assembly further includes the second rubber vulcanized in the support ring
Body, second rubber bodies include the first part of sealed contact is formed with the axial end portion of the first runner body, and
The second part of sealed contact is formed with the axial end portion of the housing, wherein the radially protruding part is in the axial direction
Between the first part and second part.
In a preferred embodiment, second rubber bodies further include the third vulcanized in the radially protruding part
Part.
In a preferred embodiment, it is embedded in the first part of second rubber bodies 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 auxiliary sap cavity is configured to not be connected to the main liquid cavity.
In a preferred embodiment, axially external identical sealing group is provided at two of the first runner body
Part.
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 communicating passage and the length axial dynamic according to required for hydraulic bushing
Rigidity determines.
Hydraulic bushing according to the present invention includes the communicating passage for assisting sap cavity and being formed in auxiliary sap cavity, can be in axis
Stiffness tuning can be realized on upwardly and radially in a big way, to improve the variation rigidity that hydraulic bushing can be provided
Characteristic and damping.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 schematically shows the cross-sectional view of hydraulic bushing according to an embodiment of the invention.
Fig. 2 is showing the enlarged view of the auxiliary sap cavity in hydraulic bushing shown in Fig. 1.
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
The present invention will be further described with reference to the accompanying drawings.It should be noted that term " axial direction " herein and
" radial direction " respectively refers to the horizontal and vertical direction in Fig. 1.
Fig. 1 schematically shows hydraulic bushing 100 according to an embodiment of the invention.As shown in Figure 1, hydraulic lining
Set 100 include mandrel 10, be arranged in mandrel 10 radial outside first runner bodies 20, and be set in a manner of compression the
The housing 30 of the radial outside of one runner body 20.First runner body 20 is normally constructed to the form of sleeve member.Mandrel 10 is usually
Preformed member, and in the embodiment shown in fig. 1, it is configured to the form of Step Shaft.It the both ends of mandrel 10 for example can be with rail
The bogie of road train is connected, and housing 30 is connected with positioning arm.The also settable optional inner sleeve 15 on mandrel 10 is such as schemed
Shown in 1.Two axial end portions of housing 30 are radially bent towards mandrel 10, so as to form flange 32, to be conducive to liquid
The sealing of bushing 100 is pressed, this point will be described below.
The first rubber bodies 40 are filled in gap between mandrel 10 and first runner body 20.It will be understood, however, that
In the case where being provided with inner sleeve 15, the first rubber bodies 40 be can be filled between inner sleeve 15 and first runner body 20.In the first rubber
Two main liquid cavities 45 for accommodating hydraulic fluid are provided on body 40, they are preferably configured to diametrically opposed.Also
It is to say, the two main liquid cavities 45 all only partly extend in the circumferential, and diametrically opposed.In the outer of first runner body 20
Constructed on surface it is fluted, can spiral circle distribution form.In the assembled state, housing 30 is pressed on first runner
On body 20, so that the groove on first runner body 20 is formd for hydraulic fluid in the first runner 42 wherein flowed.First
The both ends of runner 42 are connected to two main liquid cavities 45 respectively.In addition, being configured with the use being connected to first runner 42 on housing 30
In the liquid injection hole (not shown) of injection hydraulic fluid.
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 present invention, as shown in Figure 1, the two in the axial direction end of first runner body 20 is by 50 envelope of seal assembly
It closes, to form the closed chamber for being used to accommodate hydraulic fluid, i.e. main liquid cavity 45.Seal assembly 50 includes the support ring of rigidity
60, it is mounted on mandrel 10.In the illustrated embodiment, mandrel 10 is configured to multi-diameter shaft, and therefore, support ring 60 is preferably installed
At the hierarchic structure of mandrel 10, to form good positioning and to be more stably supported.Vulcanization has the in support ring 60
Two rubber bodies 70 have been embedded in the gasket 55,56 of rigidity in the second rubber bodies 70 (see Fig. 2).In this way, support ring 60 and gasket
55,56 one is formed 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 exterior portion 74 of the inboard portion 72 of the axial end portion of first runner body 20 and the axial end portion close to housing 30.By this
Setting, the outer surface of the axial end portion of the inboard portion 72 and first runner body 20 of the second rubber bodies 70, which is formed, to be sealed, and second
The inner surface of the exterior portion 74 of rubber bodies 70 and the flange 32 for the axial end portion for being formed in housing 30, which is formed, to be sealed.In this way,
It is formed between the inboard portion 72 of the second rubber bodies 70, the exterior portion 74 of the second rubber bodies 70, support ring 60 and housing 30
One closed auxiliary sap cavity 80, wherein hydraulic fluid can be accommodated.However unlike main liquid cavity 45, each sealing group
Auxiliary sap cavity 80 in part 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.Similarly, in support ring 60
Also vulcanization has the middle section 76 of the second rubber bodies 70 on protruding portion 62.In the assembled condition, support ring 60 is radially outward stretched
Protruding portion 62 out is in auxiliary sap cavity 80.As shown in Fig. 2, the peripheral end face of protruding portion 62 terminates in auxiliary sap cavity 80,
That is, in radial directions, protruding portion 62 (middle section 76 including vulcanizing the second rubber bodies 70 on it) does not touch
The inner surface of housing 30.As a result, between the protruding portion 62 of support ring 60 extended radially out and the inner surface of housing 30 between
Gap forms a communicating passage 90.
In this way, according to the present invention, pass through the protruding portion 62 of support ring 60 (and the second rubber bodies 70 of vulcanization on it
Middle section 76) sap cavity 80 will be assisted to be divided into sub- chamber adjacent in two axial directions, that is, it is in the first sub- chamber 81 of axially inner side
Be in the second axially external sub- chamber 82.The two sub- chambers 81 and sub- chamber 82 are communicated with each other by communicating passage 90.Therefore, when
When hydraulic bushing 100 bears axial sinusoidal excitation, the protruding portion 62 of support ring 60 can generate moving back and forth in axial direction, to squeeze
Pressure is located at the first sub- chamber 81 and the second sub- chamber 82 at left and right sides of it.In this way, wherein in a sub- chamber (such as first sub- chamber 81)
In can generate internal high pressure, and another sub- chamber (such as second sub- chamber 82) correspondingly generates internal low-voltage, so that hydraulic fluid
The sub- chamber (such as second sub- chamber 82) with internal low-voltage can be flowed into from the sub- chamber (such as first sub- chamber 81) with internal high pressure.
Due to pressure difference existing between two sub- chambers, hydraulic bushing 100 is caused to produce the variation rigidity in axial direction.This further increases
The strong effect of the axial variation rigidity of hydraulic bushing 100, achievees the purpose that the low frequency Low rigidity and high frequency high rigidity in axial direction.
It is not intended to be bound by any theory, according to the present invention, the communicating passage 90 in sap cavity 80 is assisted to be mainly used to
The variation rigidity in axial direction is provided for hydraulic bushing 100, and the first runner 42 in main liquid cavity 45 is mainly used to as hydraulic bushing 100
Variation rigidity radially is provided.Therefore, the geometric parameters such as cross-sectional area and length of first runner 42 and communicating passage 90 are distinguished
Requirement depending on axial variation rigidity and radial variation rigidity to hydraulic bushing 100.According to the requirement of concrete application, first runner
42 and the geometric parameter of communicating passage 90 can choose into mutually the same, also can choose into different from each other.
According to the present invention, the gasket 55 of rigidity has been respectively embedded into the exterior portion 74 of rubber bodies 70 and inboard portion 72
With 56, to provide a degree of axial rigidity for hydraulic bushing 100.Other than the effect of axial rigidity is provided, pad
Piece 56 can also squeeze the second adjacent rubber bodies 70, to sufficiently ensure main liquid cavity 45 and assist the hydraulic fluid in sap cavity 80
Sealing effect.Dummy slider 55 is then capable of the second rubber bodies 70 with the flange 32 of metal-coating 30 and between the two
The sealing for auxiliary sap cavity 80 is collectively formed in exterior portion 74.The leakproofness of sap cavity 80 is assisted to obtain further as a result,
It improves.
According to the present invention, hydraulic fluid perfusion channel 95 is additionally provided in support ring 60.As shown in Fig. 2, 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 and another with horizontal branch 96
The vertical branch 94 of auxiliary sap cavity 80 is led in one end.In this way, can use hydraulic fluid after hydraulic bushing 100 assembles
Perfusion channel 95 injects hydraulic fluid to auxiliary sap cavity 80.After injection is completed, plug (not shown) can be used for example by liquid
The horizontal branch 96 in pressure 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 required to setting seal assembly at the axial ends of first runner body.The two sealing groups
Part can be seal assembly 50 as described above, can also use seal assembly 50 as described above with only one of them, and another
One uses common sealing element.This common sealing element only needs provide sealing effect to form closed main liquid cavity i.e.
Can, it is that those skilled in the art is easy design.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (10)
1. a kind of hydraulic bushing, comprising:
Mandrel；
It is arranged the first runner body of sleeve-shaped on the mandrel, the gap between the mandrel and the first runner body
The first rubber bodies are inside filled with, the first runner for hydraulic fluid is configured on the outer surface of the first runner body,
In, two main liquid cavities for accommodating hydraulic fluid, described two masters are diametrically opposite configured in first rubber bodies
Sap cavity is communicated with each other by the first runner；
Housing, compression type are set in the radial outside of the first runner body；And
At least one axially external seal assembly of the first runner body is set, and the seal assembly and the housing are total
The auxiliary sap cavity for accommodating hydraulic fluid is defined together；
Wherein, the seal assembly includes the support ring being arranged on the mandrel, and the support ring includes being in the auxiliary
The radially protruding part extended towards the housing in sap cavity, the gap between the radially protruding part and the housing forms
Communicating passage.
2. hydraulic bushing according to claim 1, which is characterized in that the auxiliary sap cavity is divided by the radially protruding part
The second sub- chamber in the first axially external sub- chamber and in axially inner side, the communicating passage is by the described first sub- chamber and
Two sub- chambers communicate with each other.
3. hydraulic bushing according to claim 2, which is characterized in that the seal assembly further includes vulcanization in the support
The second rubber bodies on ring, second rubber bodies include forming sealed contact with the axial end portion of the first runner body
First part, and form with the axial end portion of the housing second part of sealed contact, wherein the radially protruding part
In the axial direction between the first part and second part.
4. hydraulic bushing according to claim 3, which is characterized in that second rubber bodies further include vulcanization in the diameter
Part III on protruding portion.
5. hydraulic bushing according to claim 3 or 4, which is characterized in that second rubber bodies first part and
Rigid gasket is embedded in second part.
6. according to claim 1 to hydraulic bushing described in any one of 5, which is characterized in that be equipped with liquid in the support ring
Fluid perfusion channel is pressed, for injecting hydraulic fluid to the auxiliary sap cavity.
7. hydraulic bushing according to claim 6, which is characterized in that the hydraulic fluid perfusion channel is described including leading to
The horizontal branch of the axially external end of support ring, and lead to the vertical branch of the first sub- chamber of the auxiliary sap cavity.
8. according to claim 1 to hydraulic bushing described in any one of 7, which is characterized in that the auxiliary sap cavity be configured to
The main liquid cavity is not connected to.
9. according to claim 1 to hydraulic bushing described in any one of 8, which is characterized in that the two of the first runner body
It is a axially external to be provided with identical seal assembly.
10. according to claim 1 to hydraulic bushing described in any one of 9, which is characterized in that the cross section of the first runner
Long-pending and length is determined according to radial direction dynamic rate required for hydraulic bushing, and the cross-sectional area and length of the communicating passage
It is determined according to axial direction dynamic rate required for hydraulic bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273576.XA CN109236939A (en) | 2018-10-30 | 2018-10-30 | Hydraulic bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811273576.XA CN109236939A (en) | 2018-10-30 | 2018-10-30 | Hydraulic bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109236939A true CN109236939A (en) | 2019-01-18 |
Family
ID=65079135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811273576.XA Withdrawn CN109236939A (en) | 2018-10-30 | 2018-10-30 | Hydraulic bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236939A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185735A (en) * | 2019-05-17 | 2019-08-30 | 株洲时代新材料科技股份有限公司 | A kind of liquid composite bush |
| CN112065909A (en) * | 2020-08-18 | 2020-12-11 | 株洲时代瑞唯减振装备有限公司 | Dynamic stiffness characteristic adjusting method and liquid rubber composite node with auxiliary cavity |
| CN112096776A (en) * | 2020-08-18 | 2020-12-18 | 株洲时代瑞唯减振装备有限公司 | Integral liquid rubber composite node and rigidity adjusting method |
| WO2021238009A1 (en) * | 2020-05-27 | 2021-12-02 | 株洲时代新材料科技股份有限公司 | Hydraulic composite bushing, flow channel for same, and method for forming flow channel |
-
2018
- 2018-10-30 CN CN201811273576.XA patent/CN109236939A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185735A (en) * | 2019-05-17 | 2019-08-30 | 株洲时代新材料科技股份有限公司 | A kind of liquid composite bush |
| WO2021238009A1 (en) * | 2020-05-27 | 2021-12-02 | 株洲时代新材料科技股份有限公司 | Hydraulic composite bushing, flow channel for same, and method for forming flow channel |
| CN112065909A (en) * | 2020-08-18 | 2020-12-11 | 株洲时代瑞唯减振装备有限公司 | Dynamic stiffness characteristic adjusting method and liquid rubber composite node with auxiliary cavity |
| CN112096776A (en) * | 2020-08-18 | 2020-12-18 | 株洲时代瑞唯减振装备有限公司 | Integral liquid rubber composite node and rigidity adjusting method |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190118 |