KR102035354B1 - Hydraulic sealed type bush - Google Patents

Hydraulic sealed type bush Download PDF

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Publication number
KR102035354B1
KR102035354B1 KR1020130051596A KR20130051596A KR102035354B1 KR 102035354 B1 KR102035354 B1 KR 102035354B1 KR 1020130051596 A KR1020130051596 A KR 1020130051596A KR 20130051596 A KR20130051596 A KR 20130051596A KR 102035354 B1 KR102035354 B1 KR 102035354B1
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KR
South Korea
Prior art keywords
plunger
inner pipe
hydro
bush
coupled
Prior art date
Application number
KR1020130051596A
Other languages
Korean (ko)
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KR20140132446A (en
Inventor
차승환
Original Assignee
현대모비스 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020130051596A priority Critical patent/KR102035354B1/en
Publication of KR20140132446A publication Critical patent/KR20140132446A/en
Application granted granted Critical
Publication of KR102035354B1 publication Critical patent/KR102035354B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/04—Buffer means for limiting movement of arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41—Elastic mounts, e.g. bushings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/44—Centering or positioning means
    • B60G2204/4402—Spacers or shims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/73—Rubber; Elastomers

Abstract

A hydro bush capable of dynamic characteristic tuning is disclosed. Hydro bush according to an embodiment of the present invention is formed between the inner pipe coupled through the first plunger, the outer pipe for accommodating the inner pipe and the inner pipe and the outer pipe is formed with a liquid chamber It includes an elastic body, an assembly hole of a predetermined size is formed in the lower end of the first plunger.

Description

Hydro Bushing with Dynamic Characteristics Tuning {HYDRAULIC SEALED TYPE BUSH}

The present invention relates to a hydro bush, and more particularly, to a hydro bush capable of tuning various dynamic characteristics.

In order to attenuate the vibration of the vehicle, it is generally installed between the vibration generating part such as the engine or the transmission of the vehicle and the vehicle body, and controls various vibrations and shocks to prevent the vibration and shock from being transmitted to the vehicle body. ) Is used. Among these bushes, the bushes formed by using the viscosity of the fluid and the characteristics of the rubber are referred to simply as a hydraulic sealed type bush.

FIG. 1 is an exploded view schematically showing a conventional hydro bush 10, and FIG. 2 schematically illustrates a cross section when the hydro bush 10 of FIG. 1 is coupled.

1 and 2, the hydro bush 10 includes an inner pipe 11 integrally formed in a form inserted into the plunger 11a, an outer pipe 12 accommodating the inner pipe 11 therein, and And a rubber part 13 disposed between the inner pipe 11 and the outer pipe 12 and having a liquid chamber formed therein, and the stopper 14 at the front part or the rear part of the inner pipe 11 as necessary. May be further combined.

The hydro bush 10 configured as described above is designed in one piece with the inner pipe 11 to form the plunger 11a through the vulcanization process and to form a rubber part 13 through the vulcanization process, and then to provide a fluid to the liquid chamber. 13) and the outer pipe 12 may be formed.

At this time, since the plunger 11a is disposed in the liquid chamber formed inside the rubber part 13, the plunger 11a brings a mass effect due to the fluid. Stopping of the bush's circumferential behavior. Therefore, the characteristics of the hydro bush 10 depend on the shape and length (part A of FIG. 2) of the plunger 11a and the rubber part 13.

However, in the related art, since the inner pipe 11 and the plunger 11a are manufactured integrally, there is a problem in that the characteristics of the hydro bush 10 cannot be tuned, and thus there is a limitation in the overall shape design.

Embodiments of the present invention to provide a hydro bush capable of dynamic characteristic tuning.

According to an aspect of the present invention, the inner pipe is coupled through the first plunger, the outer pipe for receiving the inner pipe therein, and the elastic body is formed between the inner pipe and the outer pipe is formed to include an elastic body The lower end of the first plunger may be provided with a hydro bush in which an assembling hole of a predetermined size is formed.

The apparatus may further include a second plunger fitted into the assembly hole of the first plunger.

The assembly hole may have a space formed therein, and the second plunger may include a head portion seated in the space, a pillar portion integrally formed with the head portion, and a bottom portion integrally formed with the pillar portion. can do.

In addition, the second plunger may be an elastic body.

On the other hand, the first plunger may be formed by coupling the front and rear members having assembly grooves formed at lower ends thereof, and the assembly grooves of the front and rear members may form the assembly holes.

The apparatus may further include a stopper coupled to at least one of front and rear surfaces of the inner pipe.

Embodiments of the present invention it is possible to tune the dynamic characteristics of the hydro bush by forming an assembling hole in the lower end of the main plunger, and adjusting the height of the auxiliary plunger fitted into the assembly hole.

Therefore, it is possible to implement a flexible and elastic hydro bush that can have a variety of properties.

1 is an exploded view schematically showing a conventional hydro bush.
FIG. 2 is a view schematically illustrating a cross section when the hydro bush of FIG. 1 is coupled.
Figure 3 is an exploded view schematically showing a hydro bush according to an embodiment of the present invention.
4 is a view schematically showing the shape of the first plunger in the hydro bush of FIG.
5 is a view schematically showing a cross section when the hydro bush of FIG. 3 is coupled.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded view schematically showing a hydro bush 100 according to an embodiment of the present invention.

Referring to FIG. 3, the hydro bush 100 includes an inner pipe 110 coupled through the first plunger 111, an outer pipe 120 accommodating the inner pipe 110, and an inner pipe ( It is disposed between the 110 and the outer pipe 120 includes an elastic body 130 is formed a liquid chamber. At this time, the assembly hole 112 of a predetermined size is formed in the lower end of the first plunger 111, the second plunger 140 may be fitted into the assembly hole 112.

Such a hydro bush 100 is installed on the front lower arm (not shown) of the vehicle suspension, for example, and performs a function of damping vibration while elastically deforming in a radial direction by vibration transmitted from a wheel of a wheel. In addition, since the vehicle suspension system includes not only the front lower arm but also a plurality of arms, the hydro bush 100 may couple the two arms to each other.

In this case, the inner pipe 110 may be inserted into and coupled to the first coupling member, and the outer pipe 120 may be coupled to and coupled to the second coupling member. Here, the first combination and the second combination may be end portions of the arm. The elastic body 130 disposed between the inner pipe 110 and the outer pipe 120 functions to attenuate the vibration while elastically deforming in a radial direction by the vibration acting on the first and second combinations from the wheel of the vehicle. .

Hereinafter, each configuration will be described in detail.

The inner pipe 110 is coupled to the first assembly as described above, which is disposed to be coupled to the first plunger 111. The first plunger 111 is disposed inside the liquid chamber to cause a mass effect due to the fluid, thereby reducing the dynamic characteristics in the high frequency band, and a stopping function for the circumferential behavior of the bush during vehicle operation.

As illustrated in FIG. 3, the first plunger 111 may be formed in a rectangular frame having an opening (not shown) through which the inner pipe 110 is coupled. Specifically, the opening may be formed in a shape similar to a trapezoid, and the upper side may be formed to have a predetermined length longer than the lower side (see FIG. 3).

An assembly hole 112 is formed at the lower end of the first plunger 111. The assembling hole 112 may be formed to correspond to the insertion portion of the second plunger 140 where the second plunger 140 is inserted and fitted. The size of the assembling hole 112 is not specified, and as described above, the size of the second plunger 140 may be sufficient to be inserted and fastened. To this end, a space may be formed in the assembly hole 112 so that the second plunger 140 may be fastened.

FIG. 4 is a view schematically illustrating the shape of the first plunger 111 in the hydro bush 100 of FIG. 3. Referring to FIG. 4, the first plunger 111 may be formed by combining the front member 111a and the rear member 111b each having the assembly groove 111c formed at the lower end thereof. At this time, the assembly groove 111c of the front member 111a and the assembly groove 111c of the rear member 111b form the assembly hole 112.

FIG. 4A illustrates the front member 111a and the rear member 111b having the assembly grooves 111c formed at the lower ends, respectively. In FIG. 4B, the front member 111a and the rear member 111b are coupled to each other. In FIG. 4C, the inner pipe 110 is penetrated and coupled to the opening of the first plunger 111 formed by coupling the front member 111a and the rear member 111b. At this time, the assembling hole 112 is formed in the lower end of the first plunger 111 by the assembling groove 111c.

The shape of the first plunger 111 may be formed through a vulcanization process. The vulcanization process is a well-known process generally used in a rubber product manufacturing process, also referred to as a vulcanization process. Such a vulcanization process is a process of changing a plastic material into an elastic material, and since it is a well-known process, it abbreviate | omits description about the specific process content.

Referring to FIG. 3 again, the outer pipe 120 is disposed to receive the inner pipe 110 therein and is coupled with the second combination as described above. The outer pipe 120 is formed in a size larger than the outer diameter of the inner pipe 110 in the form of a pipe, the inner pipe 110 is accommodated into the outer pipe 120.

The elastic body 130 is formed between the inner pipe 110 and the outer pipe 120 and functions to damp vibration as described above. The elastic body 130 may be formed so that a liquid chamber is formed therein, and the shape of the liquid chamber may be formed in a well-known form as well as various descriptions will be omitted. The material of the elastic body 130 is not particularly limited as long as the material has a predetermined degree of elasticity, and may be, for example, a material such as rubber.

In the hydro bush 100 according to the embodiment of the present invention, the assembly hole 112 is formed at the lower end of the first plunger 111 and further includes a second plunger 140 fitted into the assembly hole 112. It is a technical feature to do. The second plunger 140 functions to tune the hydro bush 100 to realize various dynamic characteristics by adjusting the length of the stopper.

The second plunger 140 may be formed to be fitted into the assembly hole 112. For example, as shown in FIG. 3, the second plunger 140 includes a head portion 142, a pillar portion 144 integrally formed with the head portion 142, and a bottom portion integrally formed with the pillar portion 144. 146 can be formed.

The second plunger 140 is formed of an elastic body. The elastic body is not limited to a specific material and may be, for example, a material such as rubber.

Specifically, when describing the form of the second plunger 140, the head part 142 is inserted into the assembly hole 112 of the first plunger 111 and is fitted into and fastened to be formed in the assembly hole 112. It may be formed to have a shape corresponding to the space. The pillar portion 144 corresponds to a member connecting the head portion 142 and the bottom portion 146, the height of the pillar portion 144 may vary and the hydro bush 100 by the height of the pillar portion 144. The dynamic characteristics of can be tuned. The bottom portion 146 may be formed in a plate shape and the top surface of the bottom portion 146 may be in close contact with the bottom surface of the first plunger 111.

5 is a schematic cross-sectional view of the hydro bush 100 of FIG. Referring to FIG. 5, an inner pipe 110 is disposed through a central portion of the first plunger 111, and a second plunger 140 is fitted to the lower portion of the second plunger 111. At this time, the second plunger 140 is inserted into and fastened through the assembly hole 112 formed at the lower end of the first plunger 111, and the head part 142 and the pillar part 144 of the second plunger 140 are fixed. It is fastened in a form that is accommodated in the inner space of the assembly hole (112). In this case, the upper surface of the bottom portion 146 of the second plunger 140 is in close contact with the lower surface of the first plunger 111.

At this time, the length between the bottom surface of the bottom portion 146 of the second plunger 140 and the inner surface of the outer pipe 120 becomes the stopping length (L). Therefore, when the height of the pillar portion 144 of the second plunger 140 is adjusted, the stopping length L is changed, so that the dynamic characteristics of the entire hydro bush 100 may be adjusted. That is, the second plunger 140 may be manufactured to have the required dynamic characteristics (for example, by varying the height of the pillar portion 144), and the dynamic of the hydro bush 100 may be changed by simply replacing the second plunger 140. There is an advantage that the characteristics can be finely adjusted.

Referring back to FIG. 3, the hydro bush 100 may further include a stopper 150 coupled to at least one of front and rear surfaces of the inner pipe 110. 3, the stopper 150 is disposed on the front surface of the inner pipe 110. The stopper 150 is coupled to at least one of the front and rear surfaces of the inner pipe 110 to adjust the characteristics of the hydro bush 100 as necessary. Since the stopper 150 is a general one, a detailed description thereof will be omitted.

As described above, embodiments of the present invention can tune the dynamic characteristics of the hydro bush by forming an assembly hole in the lower end of the main plunger, and adjusting the height of the auxiliary plunger fitted into the assembly hole. Therefore, it is possible to implement a flexible and elastic hydro bush that can have a variety of properties.

As described above, embodiments of the present invention have been described, but those skilled in the art may add, change, delete, or add elements within the scope not departing from the spirit of the present invention described in the claims. The present invention may be modified and changed in various ways, etc., which will also be included within the scope of the present invention.

10: hydro bush 11: inner pipe
11a: plunger 12: outer pipe
13: Jugobu 14: Stopper
100: hydro bush 110: inner pipe
111: first plunger 111a: front member
111b: rear member 112: assembly hole
111c: assembly hole 120: outer pipe
130: elastic body 140: second plunger
142: head portion 144: pillar portion
146: bottom 150: stopper

Claims (6)

An inner pipe coupled through the first plunger,
An outer pipe accommodating the inner pipe therein;
It is formed between the inner pipe and the outer pipe and includes an elastic body formed liquid chamber,
An assembly hole of a predetermined size is formed at the lower end of the first plunger,
The first plunger,
The upper side is formed in a trapezoidal shape longer than the lower side by a predetermined length therein, is formed in the form of a rectangular frame having an opening through which the inner pipe is coupled,
The front and rear members are formed by combining the lower and lower grooves, respectively, and the assembling grooves of the front and rear members form the assembly holes.
Hydro bush,
Further comprising a second plunger fitted into the assembly hole of the first plunger,
The assembly hole, the space is formed inside,
The second plunger,
A head portion seated in the space, a pillar portion integrally formed with the head portion, and a bottom portion integrally formed with the pillar portion,
The second plunger,
When the top surface of the bottom portion is in close contact with the bottom surface of the first plunger and the head portion and the bottom portion are seated in the space, and the height of the pillar portion is adjusted, the bottom surface of the bottom portion and the inner surface of the outer pipe are adjusted. Hydro bushes with varying length, allowing dynamic properties to be adjusted. delete delete The method according to claim 1,
The second plunger is a hydro bush which is an elastic body. delete The method according to any one of claims 1 and 4,
Hydro bushing further comprises a stopper coupled to at least one of the front and rear of the inner pipe.
KR1020130051596A 2013-05-08 2013-05-08 Hydraulic sealed type bush KR102035354B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130051596A KR102035354B1 (en) 2013-05-08 2013-05-08 Hydraulic sealed type bush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130051596A KR102035354B1 (en) 2013-05-08 2013-05-08 Hydraulic sealed type bush

Publications (2)

Publication Number Publication Date
KR20140132446A KR20140132446A (en) 2014-11-18
KR102035354B1 true KR102035354B1 (en) 2019-10-22

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KR1020130051596A KR102035354B1 (en) 2013-05-08 2013-05-08 Hydraulic sealed type bush

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102546129B1 (en) * 2021-03-08 2023-06-21 주식회사 디엔오토모티브 Mount bushing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101243617B1 (en) * 2011-10-27 2013-03-15 주식회사 파브코 Hydro bush
JP7026667B2 (en) * 2014-07-24 2022-02-28 スリーエム イノベイティブ プロパティズ カンパニー Assembly for treating tissue sites

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215132A (en) * 1984-04-06 1985-10-28 Bridgestone Corp Elastic bush
JPH0726667B2 (en) * 1990-03-27 1995-03-29 鬼怒川ゴム工業株式会社 Fluid filled bush

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101243617B1 (en) * 2011-10-27 2013-03-15 주식회사 파브코 Hydro bush
JP7026667B2 (en) * 2014-07-24 2022-02-28 スリーエム イノベイティブ プロパティズ カンパニー Assembly for treating tissue sites

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