CN113492766A - Automobile vibration isolation bushing with middle mass body and automobile - Google Patents
Automobile vibration isolation bushing with middle mass body and automobile Download PDFInfo
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- CN113492766A CN113492766A CN202110805101.6A CN202110805101A CN113492766A CN 113492766 A CN113492766 A CN 113492766A CN 202110805101 A CN202110805101 A CN 202110805101A CN 113492766 A CN113492766 A CN 113492766A
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- 239000013013 elastic material Substances 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 230000005284 excitation Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 10
- 230000005540 biological transmission Effects 0.000 description 17
- 238000012360 testing method Methods 0.000 description 8
- 238000013016 damping Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
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- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- 230000009323 psychological health Effects 0.000 description 1
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- 238000004073 vulcanization Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
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- 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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- 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
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/025—Elastomers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Springs (AREA)
Abstract
The invention relates to an automobile vibration isolation bushing with an intermediate mass body and an automobile, wherein the automobile vibration isolation bushing comprises: the vibration damper comprises an outer frame, an outer elastomer, an intermediate mass body, an inner elastomer and an inner core, wherein the outer frame is used for being fixedly connected with a vehicle body or a vehicle frame or an auxiliary vehicle frame, the inner core is provided with mounting holes, the mounting holes are used for being fixedly connected with a vibration source, the intermediate mass body is arranged between the inner core and the outer frame, the intermediate mass body passes through the inner elastomer and the inner core, the outer elastomer and the outer frame are fixedly connected, and the rigidity in the outer elastomer and the inner elastomer is smaller than that of the intermediate mass body. Through setting up middle quality body between inlayer elastomer and outer elastomer, constitute second grade vibration isolation structure, promoted the isolated ability of centering high frequency vibration excitation, it is poor effectively to improve single-stage vibration isolation structure vibration isolation effect among the prior art, influences the problem that the passenger took experience.
Description
Technical Field
The invention relates to the field of vibration isolation bushings, in particular to an automobile vibration isolation bushing with an intermediate mass body and an automobile.
Background
Various vibration sources exist on automobiles, such as traditional internal combustion engine and accessories thereof, electric drive assemblies of new energy automobiles, various gear transmission devices and the like, wherein the various gear transmission devices comprise a gearbox, a transfer case, a rear drive unit and the like, when the devices with the vibration sources operate, various types of vibration excitations can be generated according to the kinematics, dynamics or electromagnetic characteristics of internal components of the devices, and the vibration excitations can be transmitted to a driving cabin of the automobile through a structural path, so that vibration noise in the automobile is finally generated, and the comfort and physical and psychological health of drivers and passengers are influenced. Therefore, in general, vibration isolation devices, elements, and the like are provided in a portion of the vehicle where a main vibration source is connected to the vehicle body or the chassis, so as to block transmission of vibration excitation into the vehicle.
The vibration isolation device in the prior art comprises various power assembly suspensions, vibration isolation bushings and the like, wherein the vibration isolation bushings are most commonly used. The traditional vibration isolation bushing is of a single-stage vibration isolation structure, the single-stage vibration isolation structure comprises an inner core, an intermediate body and an outer frame, and the intermediate body is fixedly arranged between the inner core and the outer shell. The vibration source to be isolated is rigidly connected with the inner core of the vibration isolation bush, and the vehicle body or the chassis is rigidly connected with the outer frame of the vibration isolation bush. However, as the automobile develops towards hybrid power and pure electric power, the excitation generated by the main vibration source on the automobile tends to be excited at medium and high frequencies, and the single-stage vibration isolation bushing is simple in structure, has a limited vibration isolation effect, influences the stability of automobile driving, and influences the riding experience of drivers and passengers.
Therefore, it is desirable to provide a vibration isolator that provides a high isolation of mid and high frequency vibration excitations and a relatively low cost to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides an automobile vibration isolation bushing with an intermediate mass body. The problem of among the prior art single-stage vibration isolation structure vibration isolation effect poor, the interior vibration noise of car is big, influence the passenger and take experience is solved.
The technical effects of the invention are realized as follows:
an automobile vibration isolation bushing with an intermediate mass body, which is used for being arranged on a connecting part of an automobile vibration source and an automobile body or an automobile frame or an auxiliary frame, comprises: the vibration damper comprises an outer frame, an outer elastomer, an intermediate mass body, an inner elastomer and an inner core, wherein the outer frame is used for being fixedly connected with a vehicle body or a vehicle frame or an auxiliary vehicle frame, the inner core is provided with mounting holes, the mounting holes are used for being fixedly connected with a vibration source, the intermediate mass body is arranged between the inner core and the outer frame, the intermediate mass body passes through the inner elastomer and the inner core, the outer elastomer and the outer frame are fixedly connected, and the rigidity in the outer elastomer and the inner elastomer is smaller than that of the intermediate mass body. Through setting up middle quality body between inlayer elastomer and the outer elastomer, form second grade vibration isolation structure, show the isolated ability of lift system centering high frequency vibration excitation, improve the travelling comfort that whole car was taken, it is poor to improve single-stage vibration isolation structure vibration isolation effect among the prior art, influences the problem of taking experience. And the overall structure that sets up middle quality body between inlayer elastomer and outer elastomer is simple, can solve the problem of high frequency vibration noise in the whole car with comparatively economic mode.
Further, the mounting hole is rigidly connected with the automobile vibration source, and the outer frame is arranged on an automobile body or a frame or an auxiliary frame in an interference press-fitting mode. Through mounting hole and car vibration source rigid connection, the cooperation frame interference pressure equipment is on automobile body or frame or sub vehicle frame for the connection structure between vibration isolator bush and the vibration source, automobile body or frame or sub vehicle frame is simple, and structural integrity and assembly convenience are good.
Further, the intermediate mass body has an annular structure.
Furthermore, a first hollow-out part is arranged on the inner layer elastic body and/or a second hollow-out part is arranged on the outer layer elastic body.
Furthermore, the inner-layer elastic body is provided with a first limiting part at a position close to the inner wall of the middle mass body and/or the outer-layer elastic body is provided with a second limiting part at a position close to the inner wall of the outer frame, the first limiting part corresponds to the first hollow-out part in position, and the second limiting part corresponds to the second hollow-out part in position.
Further, the intermediate mass body is made of a metal material having a high density and an elastic modulus.
Further, the inner core and the outer frame are made of hard materials.
Further, the inner layer elastomer and the outer layer elastomer are made of elastic materials. The inner-layer elastic body, the first limiting part, the outer-layer elastic body and the second limiting part are made of elastic materials, but the elastic materials used by the inner-layer elastic body, the first limiting part, the outer-layer elastic body and the second limiting part are possibly different, and during specific implementation, a single-mode multi-material process can be adopted, so that the flexibility of a scheme is improved, and the convenience is realized.
In addition, still provide an automobile, including automobile body or frame or sub vehicle frame and foretell vehicle vibration damping bush with intermediate mass body, vehicle vibration damping bush is fixed mounting on automobile body or frame or sub vehicle frame.
As described above, the present invention has the following advantageous effects:
1) through setting up middle quality body between inlayer elastomer and the outer elastomer, form second grade vibration isolation structure, show the isolated ability of lift system centering high frequency vibration excitation, improve the travelling comfort that whole car was taken, it is poor to improve single-stage vibration isolation structure vibration isolation effect among the prior art, influences the problem of taking experience. And the overall structure that sets up middle quality body between inlayer elastomer and outer elastomer is simple, can solve the problem of high frequency vibration noise in the whole car with comparatively economic mode.
2) Through mounting hole and car vibration source rigid connection, the cooperation frame interference pressure equipment is on automobile body or frame or sub vehicle frame for the connection structure between vibration isolator bush and the vibration source, automobile body or frame or sub vehicle frame is simple, and structural integrity and assembly convenience are good.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art it is also possible to derive other drawings from these drawings without inventive effort.
Fig. 1 is a schematic structural view of a conventional single-stage vibration isolating bush;
FIG. 2 is a corresponding kinematic model of a conventional single stage vibration isolation bushing;
FIG. 3 is a schematic structural view of an automotive vibration isolator bushing with an intermediate mass according to an embodiment of the present application;
FIG. 4 is a cross-sectional view taken at location A of FIG. 3 according to an embodiment of the present application;
FIG. 5 is a mechanical model of a secondary vibration isolation system corresponding to an automobile vibration isolation bushing with an intermediate mass body according to an embodiment of the present disclosure;
FIG. 6 is a schematic view of another embodiment of an automotive vibration isolator bushing with an intermediate mass according to the present application;
fig. 7 is a graph of force transmission rate data measured in a force transmission test performed on an automotive vibration isolator bushing with an intermediate mass (a two-stage vibration isolator bushing) and a conventional single-stage vibration isolator bushing according to the present application.
Wherein the reference numerals in the figures correspond to:
the outer frame 1, the outer elastic body 2, the second hollow-out portion 21, the second limiting portion 22, the middle mass body 3, the inner layer elastic body 4, the first hollow-out portion 41, the first limiting portion 42, the inner core 5 and the mounting hole 51.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Fig. 1 is a view showing a conventional single-stage vibration isolating bush structure, and a vibration isolating system using the conventional single-stage vibration isolating bush and a vibration source can be described by using the kinematic model shown in fig. 2. Wherein m is the mass of the vibration source, k is the elastomer stiffness of the single-stage vibration isolation bushing in the vibration isolation direction, c is the vibration isolation bushing, a simple harmonic dynamic excitation force with the amplitude of F acts on the vibration source, and x is the displacement of the vibration source in the vibration isolation degree of freedom, so the forced vibration motion differential equation of the system can be described by the formula (I):
the force transmission rate TR of the system can be expressed by formula (II):
where f is the frequency, ω -2 π f is the circle frequency, j2＝-1。
As shown in fig. 3, in the present application, based on the conventional single-stage vibration isolation bushing, an intermediate mass is added between the inner core and the outer frame, and then a mechanical model of a system formed by the bushing and the vibration source can be described with reference to fig. 5. Wherein m is2Is the mass of the vibration source, m1Mass of intermediate mass body, k, being vibration-isolating bush1Stiffness, k, of the outer elastomer of the vibration isolation bushing in the direction of vibration isolation2Stiffness of the inner layer elastomer of the vibration isolation bushing in the vibration isolation direction, c1Damping of the outer elastomer of the vibration-isolating bush in the direction of vibration isolation, c2The dynamic simple harmonic excitation force amplitude acting on the vibration source is F for damping of the inner layer elastic body of the vibration isolation bushing in the vibration isolation direction.
FIG. 5 is a two-stage vibration isolation system mechanical model of the vehicle vibration isolation bushing with the intermediate mass body, wherein x is set1Is the displacement, x, of the vibration source in the degree of freedom of vibration isolation2For the displacement of the intermediate mass body in the degree of freedom of vibration isolation, the system of motion differential equations can be expressed by the following formula:
the force transfer rate of the secondary vibration isolation system is:
where f is the frequency, ω -2 π f is the circle frequency, j2＝-1。
As can be seen from the comparison of equation (IV) with equation (II), in the middle and high frequency range, the force transmission rate of the single-stage vibration isolation system decreases approximately by the square of the frequency, while the force transmission rate of the two-stage vibration isolation system decreases approximately by the fourth power of the frequency. The specific force transmission rate value depends on the parameter design of the whole vibration isolation system by the skilled person.
Example 1:
as shown in fig. 3 and 4, the present embodiment provides an automobile vibration damping bushing with an intermediate mass body 3, which is provided at a connection portion between an automobile vibration source and a vehicle body or a vehicle frame or a sub-frame, and includes: frame 1, outer elastomer 2, middle quality body 3, inlayer elastomer 4 and inner core 5, frame 1 is used for with automobile body or frame or sub vehicle frame fixed connection, inner core 5 is equipped with mounting hole 51, mounting hole 51 is used for with vibration source fixed connection, middle quality body 3 locates between inner core 5 and the frame 1, middle quality body 3 is through inlayer elastomer 4 and inner core 5 fixed connection and through outer elastomer 2 and frame 1 fixed connection, rigidity in outer elastomer 2 and the inlayer elastomer 4 all is less than middle quality body 3's rigidity.
Specifically, the vibration source is typically an engine, a gearbox, an electric drive assembly, or a swing arm under suspension, or the like.
Specifically, the intermediate mass body 3 is fixedly connected with the inner core 5 through the inner layer elastic body 4 and is fixedly connected with the outer frame 1 through the outer layer elastic body 2, and the fixed connection mode generally adopts a vulcanization process mode and other process modes.
Specifically, the outer frame 1 may be provided in, but not limited to, an annular structure, and the inner core 5 may be provided in, but not limited to, a cylindrical structure.
Specifically, the outer layer elastic body 2 and the inner layer elastic body 4 may be shaped as, but not limited to, solid circular rings.
In some other embodiments, the intermediate mass body 3 may have multiple layers, that is, the intermediate mass body 3 may be embedded in multiple layers in the elastic body between the outer frame 1 and the inner core 5, and the number of layers of the inner elastic body 4 and the outer elastic body 2 is equal to the number of layers of the intermediate mass body 22 plus one, thereby forming a multi-stage vibration isolation structure, in which the number of vibration isolation stages is equal to the number of layers of the intermediate mass body plus one.
Preferably, the inner core 5 and the outer frame 1 are made of hard materials. The hard material is preferably cast iron, steel, aluminum, resin, engineering plastic, nylon, or the like.
Preferably, the inner layer elastic body 4 and the outer layer elastic body 2 are made of elastic materials.
Specifically, the elastic material is a high-elasticity material with good tensile and compression resistance, shear resistance, creep resistance, fatigue resistance, corrosion resistance, ultraviolet resistance and ozone resistance, and comprises a rubber material, a silica gel material, a composite material and the like, the materials for manufacturing the outer layer elastic body 2 and the inner layer elastic body 4 in the application are preferably the rubber material and the silica gel material, and the rubber material and the silica gel material have the advantages of being mature and stable and wide in application in the automobile industry, so that the production cost is favorably controlled.
Preferably, the mounting holes 51 are rigidly connected with the vibration source of the automobile, and the outer frame 1 is arranged to be press-fitted on the automobile body or the frame or the auxiliary frame in an interference manner.
Specifically, the mounting hole 51 may be rigidly connected to the vibration source of the vehicle by screwing or hinging.
Preferably, the intermediate mass 3 is of a ring-shaped structure.
Preferably, the intermediate mass body 3 is made of a metal material having a high density and modulus of elasticity.
Specifically, the annular structure is preferably a circular ring structure, and may be an annular structure having another shape or the like. The key parameters of the intermediate mass 3 include its inertial parameters (mass, moment of inertia) and the flexural mode, which depend on the material selection and the geometric design of the intermediate mass 3. In order to ensure the modal and inertial parameters of the intermediate mass body 3, the material of the intermediate mass body 3 is typically a metal material having a high density and a high elastic modulus, and is preferably cast iron, cast steel, or the like.
Optionally, as shown in fig. 6, a first hollow portion 41 is disposed on the inner layer elastic body 4 and/or a second hollow portion 21 is disposed on the outer layer elastic body 2.
Specifically, according to specific vibration isolation performance requirements, the inner layer elastic body 4 and the outer layer elastic body 2 may be designed to be hollow structures, as shown in fig. 6, the inner layer elastic body 4 is provided with a first limiting portion 42 at a position close to the inner wall of the middle mass body 3 and/or the outer layer elastic body 2 is provided with a second limiting portion 22 at a position close to the inner wall of the outer frame 1, the first limiting portion 42 corresponds to the first hollow portion 41, and the second limiting portion 22 corresponds to the second hollow portion 21 (fig. 6 is taken as an example and is only used for describing the structural characteristics and does not represent a specific patent scheme. Different elastic materials can be used for the inner layer elastic body 4, the outer layer elastic body 2, the first limiting part 42 and the second limiting part 22.
In this embodiment, in order to test the vibration isolation effect of the vehicle vibration isolation bushing with the intermediate mass body (the two-stage vibration isolation bushing in this test) and the conventional single-stage vibration isolation bushing in the prior art, a force transmission test was performed, as shown in fig. 7.
Taking a vibration source with the mass of 10kg as an example, a single-stage vibration isolation bushing with the static rigidity of 600N/mm and a two-stage vibration isolation bushing with the static rigidity of 600N/mm and an intermediate mass body with the middle of 0.5kg are respectively used for carrying out vibration isolation tests to obtain test data, and under the condition of neglecting the influence of flexible deformation, the force transmission rate is compared with that shown in figure 7, and the force transmission rate test data of the traditional single-stage vibration isolation bushing and the two-stage vibration isolation bushing in the embodiment are respectively listed.
As shown in fig. 7, there is no vibration isolation (force transmission greater than 100%) until the excitation frequency reaches about 55Hz, whether it is a conventional single stage vibration isolator or a two stage vibration isolator as in the present application; within the range of 55Hz to 493Hz, the vibration isolation capability of the secondary vibration isolation bushing is inferior to that of the traditional single-stage vibration isolation bushing; and above 493Hz, the descending speed of the force transmission rate of the secondary vibration isolation bushing is far higher than that of the traditional single-stage vibration isolation bushing, which shows that the high-frequency vibration isolation capability of the secondary vibration isolation bushing is better than that of the traditional single-stage vibration isolation bushing.
The test data shows that when the frequency is higher than a specific value, the force transmission rate of the system formed by the two-stage vibration isolation bushing and the vibration source is far smaller than that of the traditional single-stage vibration isolation bushing and the vibration source. The higher the frequency is, the larger the difference between the force transfer rate between the second-stage vibration isolation bushing and the vibration source and the force transfer rate between the traditional single-stage vibration isolation bushing and the vibration source is, and the vibration isolation effect of the second-stage vibration isolation bushing is obviously superior to that of the traditional single-stage vibration isolation bushing, so that the vibration transmitted to a vehicle body or a chassis by the vibration source is reduced, the isolation capability of medium and high frequency vibration excitation is improved, the comfort of taking the whole vehicle is improved, and the problems that the single-stage vibration isolation structure in the prior art is poor in vibration isolation effect and the riding experience is influenced are solved.
The application scenarios of the automobile vibration isolation bushing with the intermediate mass body in the application include, but are not limited to: vibration isolation between a whole vehicle power device (an engine, a driving motor and the like) and a vehicle body or a chassis; vibration isolation between the transmission (gearbox, transfer case, reducer, etc.) and the vehicle body or chassis; and vibration isolation between various connecting rods, swing arms, stabilizer bars and the like of the vehicle suspension and the vehicle body or the auxiliary frame.
Example 2:
an automobile comprises an automobile body and the automobile vibration isolation bushing with the intermediate mass body in the embodiment 1, wherein the automobile vibration isolation bushing is fixedly arranged on the automobile body. The automobile vibration isolation bushing with the middle mass body in the embodiment 1 is arranged at the part where the main vibration source of the automobile is connected with the automobile body or the chassis, so that the transmission of vibration excitation to the inside of the automobile is blocked, the driving stability of the automobile is improved, and the riding experience of drivers and passengers is improved. And the overall structure of the automobile vibration isolation bushing with the middle mass body arranged between the inner-layer elastomer and the outer-layer elastomer is simple, so that the production cost of the vibration isolation bushing is reduced, and the automobile vibration isolation bushing is convenient to widely apply.
In this document, the terms inner and outer are used to define the parts in the drawings and the positions of the parts relative to each other, only for the sake of clarity and convenience in the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The embodiments and features of the embodiments described herein above can be combined with each other without conflict.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (9)
1. The utility model provides an automobile vibration isolation bush with middle mass body, automobile vibration isolation bush is used for establishing on the position of being connected of automobile vibration source and automobile body or frame or sub vehicle frame which characterized in that includes: frame (1), outer elastomer (2), middle quality body (3), inlayer elastomer (4) and inner core (5), frame (1) be used for with automobile body or frame or sub vehicle frame fixed connection, inner core (5) are equipped with mounting hole (51), mounting hole (51) are used for with the source fixed connection that shakes, middle quality body (3) are located inner core (5) with between frame (1), middle quality body (3) pass through inlayer elastomer (4) with inner core (5) fixed connection just passes through outer elastomer (2) with frame (1) fixed connection, outer elastomer (2) with rigidity in the inlayer elastomer (4) all is less than the rigidity of middle quality body (3).
2. The automobile vibration isolator bushing with intermediate mass body according to claim 1, characterized in that said mounting hole (51) is rigidly connected with said automobile vibration source, and said outer frame (1) is configured to be press-fitted onto the automobile body or the frame or the sub-frame with interference.
3. The automotive vibration isolator bushing with intermediate mass body according to claim 1, characterized in that said intermediate mass body (3) is of an annular structure.
4. The vehicle vibration isolator bushing with intermediate mass body according to claim 3, characterized in that a first cutout (41) is provided on the inner layer elastic body (4) and/or a second cutout (21) is provided on the outer layer elastic body (2).
5. The automotive vibration isolation bushing with the intermediate mass body according to claim 4, wherein the inner layer elastic body (4) is provided with a first limiting portion (42) at a position close to the inner wall of the intermediate mass body (3) and/or the outer layer elastic body (2) is provided with a second limiting portion (22) at a position close to the inner wall of the outer frame (1), the first limiting portion (42) corresponds to the first hollowed-out portion (41), and the second limiting portion (22) corresponds to the second hollowed-out portion (21).
6. The automotive vibration isolator bushing with intermediate mass body according to claim 1, characterized in that said intermediate mass body (3) is made of a metal material having a high density and modulus of elasticity.
7. The automotive vibration insulating bush with intermediate mass according to claim 1, characterized in that said inner core (5) and said outer frame (1) are made of hard material.
8. The automotive vibration isolator bushing with intermediate mass body according to claim 1, characterized in that said inner layer elastic body (4) and said outer layer elastic body (2) are made of an elastic material.
9. An automobile comprising a body or frame or subframe and an automobile vibration isolator bushing with an intermediate mass according to any one of claims 1 to 8, said automobile vibration isolator bushing being fixedly mounted to the body or frame or subframe.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002155988A (en) * | 2000-09-08 | 2002-05-31 | Tokai Rubber Ind Ltd | Vibration damping device for vehicle |
| US20020175455A1 (en) * | 2001-05-23 | 2002-11-28 | Shahram Tousi | Foamed elastomer engine mount isolating bushing |
| CN101054055A (en) * | 2006-04-13 | 2007-10-17 | 固特异轮胎和橡胶公司 | Vehicle stabilizer bar bushing assembly |
| CN201149058Y (en) * | 2007-12-27 | 2008-11-12 | 浙江吉利汽车研究院有限公司 | Coupling bushing structure of front sub vehicle frame and vehicle body |
| CN104553723A (en) * | 2015-01-28 | 2015-04-29 | 重庆长安汽车股份有限公司 | Bushing of vehicle engine suspended cushion assembly |
| JP2015178854A (en) * | 2014-03-19 | 2015-10-08 | 三菱自動車工業株式会社 | Bush device |
| CN207225002U (en) * | 2017-08-29 | 2018-04-13 | 咸阳西华橡胶有限公司 | Heavy truck vehicle bridge vehicle frame leading arm composite bush |
| CN110701230A (en) * | 2019-10-16 | 2020-01-17 | 中国人民解放军国防科技大学 | Nonlinear rigidity periodic vibration isolator |
| CN211449471U (en) * | 2019-11-20 | 2020-09-08 | 康迪泰克（中国）橡塑技术有限公司 | Vibration damping bushing |
-
2021
- 2021-07-16 CN CN202110805101.6A patent/CN113492766A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002155988A (en) * | 2000-09-08 | 2002-05-31 | Tokai Rubber Ind Ltd | Vibration damping device for vehicle |
| US20020175455A1 (en) * | 2001-05-23 | 2002-11-28 | Shahram Tousi | Foamed elastomer engine mount isolating bushing |
| CN101054055A (en) * | 2006-04-13 | 2007-10-17 | 固特异轮胎和橡胶公司 | Vehicle stabilizer bar bushing assembly |
| CN201149058Y (en) * | 2007-12-27 | 2008-11-12 | 浙江吉利汽车研究院有限公司 | Coupling bushing structure of front sub vehicle frame and vehicle body |
| JP2015178854A (en) * | 2014-03-19 | 2015-10-08 | 三菱自動車工業株式会社 | Bush device |
| CN104553723A (en) * | 2015-01-28 | 2015-04-29 | 重庆长安汽车股份有限公司 | Bushing of vehicle engine suspended cushion assembly |
| CN207225002U (en) * | 2017-08-29 | 2018-04-13 | 咸阳西华橡胶有限公司 | Heavy truck vehicle bridge vehicle frame leading arm composite bush |
| CN110701230A (en) * | 2019-10-16 | 2020-01-17 | 中国人民解放军国防科技大学 | Nonlinear rigidity periodic vibration isolator |
| CN211449471U (en) * | 2019-11-20 | 2020-09-08 | 康迪泰克（中国）橡塑技术有限公司 | Vibration damping bushing |
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