KR100241321B1 - Rubber bush for propeller shaft - Google Patents

Rubber bush for propeller shaft Download PDF

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Publication number
KR100241321B1
KR100241321B1 KR1019970010985A KR19970010985A KR100241321B1 KR 100241321 B1 KR100241321 B1 KR 100241321B1 KR 1019970010985 A KR1019970010985 A KR 1019970010985A KR 19970010985 A KR19970010985 A KR 19970010985A KR 100241321 B1 KR100241321 B1 KR 100241321B1
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South Korea
Prior art keywords
rubber bush
prow
propulsion shaft
rubber
bracket
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KR1019970010985A
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Korean (ko)
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KR19980074955A (en
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박용완
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류정열
기아자동차주식회사
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Priority to KR1019970010985A priority Critical patent/KR100241321B1/en
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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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/02—Rigid support of bearing units; Housings, e.g. caps, covers in the case of sliding-contact bearings
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)
  • Vibration Prevention Devices (AREA)
  • Support Of The Bearing (AREA)

Abstract

본 발명은 추진축용 러버부시에 관한 것으로, 중간이 분할되는 추진축(10)을 프로워(1)에 부착되는 센터베어링(20)으로 지지하고, 이 센터베어링(20)을 프로워(1)에 고정하는 브라켓트(30)와 프로워(1)의 사이에 진동을 감쇄하기 위한 한쌍의 러버부시(40)가 볼트(2)로 체결 고정되는 것에 있어서; 상기 러버부시(40)는 중앙에 볼트(2)가 관통되도록 홀(43)을 뚫고, 브라켓트(30)에 밀착하기 위한 단턱부(44)가 단층지게 성형되어 상하 한쌍으로 대칭되게 결합되도록 구성하는 것에 의해, 한쌍의 러버부시(40)가 동일구조로 이루어 지므로, 제작을 위한 금형비가 저감된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber bush for a propulsion shaft, and supports a propulsion shaft (10) in which the middle is divided by a center bearing (20) attached to a prow (1), and supports the center bearing (20) to a prow (1). In which the pair of rubber bushes 40 for attenuating vibrations between the bracket 30 to be fixed and the prow 1 are fastened and fixed by bolts 2; The rubber bush 40 drills the hole 43 so that the bolt 2 penetrates in the center thereof, and the stepped portion 44 for closely contacting the bracket 30 is formed in a single layer to be symmetrically coupled to the upper and lower pairs. As a result, since the pair of rubber bushes 40 have the same structure, the mold cost for fabrication is reduced.

또, 부품을 부관 유통하기 위한 물류비가 감소된다.In addition, the logistics cost for distributing parts by subsidiary is reduced.

그리고, 상하용 구분이 없게 되므로 조립성 및 작업성이 향상되는 등의 매우 유용한 발명인 것이다.And since there is no distinction for up-and-down, it is a very useful invention, such as improved assembly property and workability.

Description

추진축용 러버부시Rubber Bushing for Propulsion Shaft

본 발명은 추진축용 러버부시에 관한 것으로, 더 상세하게는 상,하 구분없이 공용화가 가능하고 조립성 및 제작성이 용이하여 그 생산원가를 저하시킬 수 있도록 발명된 것이다.The present invention relates to a rubber bush for the propulsion shaft, and more particularly, it is invented so that it can be used in common without distinguishing the upper and lower parts, and the assembly cost and the fabrication can be easily reduced.

일반적으로 엔진의 동력은 변속기(4)를 거쳐서 추진축(10)에 의해 구동방퀴로 전달되는데, 대부분의 경우 변속기(4)는 엔진, 클러치와 함께 프레임에 장치되어 있으며 구동바퀴는 섀시 스프링을 통하여 차체에 장치되어 있으므로 노면으로부터의 충격이나 적하의 변화 등에 따라 상하로 움직인다.In general, the power of the engine is transmitted to the driving wheel by the propulsion shaft 10 via the transmission 4, in which case the transmission 4 is installed in the frame together with the engine and the clutch, and the driving wheel is connected through the chassis spring. Since it is installed in the vehicle body, it moves up and down due to the impact from the road surface or the change of dripping.

그 때문에 엔진의 동력을 지장없이 구동바퀴에 전달하기 위해서 추진축의 양끝에 유니버설 조인트가 장치되어 있다.Therefore, universal joints are provided at both ends of the propulsion shaft in order to transmit the engine power to the driving wheel without any problems.

또한, 추진축(10)은 끊임없이 변동하는 엔진의 토크를 받으면서 고속회전을 하므로 비틀림 진동을 일으키기 쉽고, 또 축이 구부러지거나 기하학적 중심과 질량적 중심이 일치하지 않을 때는 휠링(whirling)이라는 굽힘 진동을 일으킬 염려가 있다.In addition, since the propulsion shaft 10 rotates at a high speed while receiving a constantly changing torque of the engine, it is easy to cause a torsional vibration, and when the shaft is bent or the geometric center and the mass center do not coincide with each other, it causes a bending vibration called wheeling. There is concern.

이들의 진동과 추진축(10)의 고유진동수와의 공명이 일어나면 파괴현상이 일어나므로 상용 회전속도에서는 공명진동(공진)이 일어나지 않도록 해야 하며, 그 진동이 차체로 전달되는 것을 감쇄하기 위한 감쇄용 러버부시가 매개체로 설치된다.Resonance occurs when these vibrations resonate with the natural frequency of the propulsion shaft 10. Therefore, resonance vibration (resonance) should not occur at a commercial rotational speed, and a damping rubber for attenuating transmission of the vibration to the vehicle body. Bush is installed as a medium.

추진축(10)은 중심에 비해 비틀림이나 굽힘에 강한 중공(中空)의 탄소강관이 일반적으로 사용되고 있으며, 축의 단면적이 정해져 있을 때는 길이가 길어지면 갑자기 위험 회전속도가 작아지는 경향이 있으므로 도 1에서와 같이 2개로 분할하게 된다.The propulsion shaft 10 is a hollow carbon steel pipe which is generally strong against torsion and bending compared to the center, and when the cross-sectional area of the shaft is determined, the propulsion shaft 10 tends to suddenly decrease in dangerous rotation speed as shown in FIG. It will split into two.

이때, 그 중앙부에는 장축을 지지하기 위해 센터베어링(20)이 필수적으로 설치된다.At this time, the center bearing 20 is essentially installed in the central portion to support the long axis.

이 센터베어링(20)은 차체의 프로워(1)에 결합되는 데, 추진축(10)의 회전진동이 프로워(1)에 전달되는 것을 방지하기 위해 도 2에서와 같이 좌우에 러버부시(40)가 각각 매개체로 설치되는 것이다.The center bearing 20 is coupled to the prow 1 of the vehicle body, the rubber bush 40 on the left and right as shown in FIG. 2 to prevent the rotational vibration of the propulsion shaft 10 from being transmitted to the prow 1. ) Are each installed as a medium.

종래, 러버부시(40)는 도 3의 확대도에서 보는 바와같이 브라켓트(30)를 사이에 두고 서로다른 단면형상을 갖는 링형상의 상부러버부시(41)와 그 내경으로 통과되도록 철(凸)형상을 갖는 하부러버부시(42)가 한쌍으로 결합되도록 구성된다.Conventionally, as shown in the enlarged view of FIG. 3, the rubber bush 40 has a ring-shaped upper rubber bush 41 having a different cross-sectional shape with the bracket 30 therebetween so as to pass through the inner diameter thereof. The lower rubber bush 42 having a shape is configured to be coupled in pairs.

이와같이 종래 한쌍의 러버부시(40)는 서로다른 형상의 상부러버부시(41)와 하부러버부시(42)로 구성되므로 이를 성형하기 위하여는 반드시 2개의 성형금형이 필요로 하다.As described above, since the pair of rubber bushes 40 is formed of the upper rubber bushes 41 and the lower rubber bushes 42 having different shapes, two molding molds are required to mold them.

또, 조립할 때도 상부용과 하부용이 구분되므로 이를 일일이 구분하여 관리하고 조립하는데 많은 불편함을 주게되어 작업성을 저하시키게 된다.In addition, when assembling the upper and lower parts are also divided so that it is possible to separate and manage and assemble a lot, thereby reducing workability.

따라서, 그 생산원가를 상승시키는 원인이 되었던 것이다.Therefore, the cost of production was raised.

본 발명의 목적은 상, 하용 구분없이 공용화가 가능하도록 된 추진축용 러버부시를 제공하는 데 있다.An object of the present invention is to provide a rubber bush for the propulsion shaft that can be used in common regardless of the upper, lower use.

본 발명의 다른 목적은 성형용 금형수를 줄이고, 부품의 관리 및 조립성이 향상되므로 그 생산원가를 저하시킬 수 있도록 한 추진축용 러버부시를 제공하는 데 있다.Another object of the present invention is to provide a rubber bush for the propulsion shaft to reduce the number of molds for molding, improve the management and assembly of the parts to reduce the production cost.

도 1은 추진축의 중앙을 분할하여 센터베어링으로 지지되는 구조를 보인 정면도1 is a front view showing a structure in which the center of the propulsion shaft is divided and supported by a center bearing;

도 2는 종래 센터베어링을 러버부시로 지지하여 프로워에 설치되는 상태를 보인 장치도Figure 2 is a device showing a state that is installed in the professional to support the conventional center bearing with a rubber bush

도 3은 종래 러버부시의 구조를 분해하여 보인 단면도3 is an exploded cross-sectional view of a conventional rubber bush structure;

도 4는 본 발명의 러버부시의 구조를 보인 조립단면도Figure 4 is an assembly cross-sectional view showing the structure of the rubber bush of the present invention.

도면중 주요 부분에 대한 부호의 설명Explanation of symbols for main parts in the drawings

10 - 추진축20 - 센터베어링10-Propulsion shaft 20-Center bearing

30 - 브라켓트40 - 러버부시30-Bracket 40-Rubber Bush

41 - 상부러버부시42 - 하부러버부시41-Upper rubber bush 42-Lower rubber bush

43 - 홀44 - 단턱부43-Hole 44-Stepped

42 - 샤프트43 - 오일공급용 주걱42-shaft 43-spatula for oil supply

이러한 본 발명의 목적은, 중간이 분할되는 추진축(10)을 프로워(1)에 부착되는 센터베어링(20)으로 지지하고, 이 센터베어링(20)을 프로워(1)에 고정하는 브라켓트(30)와 프로워(1)의 사이에 진동을 감쇄하기 위한 한쌍의 러버부시(40)가 볼트(2)로 체결 고정되는 것에 있어서;The object of the present invention is to support the propelling shaft 10, which is divided in the middle, with a center bearing 20 attached to the prow 1, and a bracket for fixing the center bearing 20 to the prow 1 ( In which the pair of rubber bushes 40 for attenuating vibrations between the 30 and the prow 1 are fastened and fixed by the bolts 2;

상기 러버부시(40)는 중앙에 볼트(2)가 관통되도록 홀(43)을 뚫고, 브라켓트(30)에 밀착하기 위한 단턱부(44)가 단층지게 성형되어 상하 한쌍으로 대칭되게 결합되도록 구성하는 것에 의해 달성된다.The rubber bush 40 drills the hole 43 so that the bolt 2 penetrates in the center thereof, and the stepped portion 44 for closely contacting the bracket 30 is formed in a single layer to be symmetrically coupled to the upper and lower pairs. Is achieved by.

따라서, 러버부시(40)가 상,하 대칭구조를 갖게 되므로 상, 하용 구분없이 공용화가 가능하게 되는 것이다.Therefore, since the rubber bush 40 has a vertical upper and lower symmetrical structure, it is possible to share the upper and lower parts.

또, 성형을 위한 금형수를 줄일 수 있고, 부품의 관리 및 조립성이 향상되므로 그 생산원가를 저하시킬 수 있는 것이다.In addition, the number of molds for forming can be reduced, and the production cost can be reduced because the management and assembly of parts are improved.

이하 본 발명의 바람직한 실시예를 첨부된 도면에 의해 상세하 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3는 본 발명의 러버부시(40) 구조를 보인 조립단면도로 브라켓트(30)를 사이에 두고 상하 대칭형의 상부러버부시(41)와 하부러버부시(42)가 한쌍으로 마주보는 상태로 밀착되는 구조를 보이고 있다.3 is an assembled cross-sectional view showing the structure of the rubber bush 40 of the present invention, in which the upper rubber bush 41 and the lower rubber bush 42 of a vertically symmetric type face each other with the brackets 30 interposed therebetween and are in close contact with each other. The structure is showing.

이 러버부시(40)는 중간이 분할되는 추진축(10)을 구름 자유롭게 프로워(1)에 부착되는 센터베어링(20)으로 지지할 때 추진축(10)의 회전진동을 프로워(1)에 전달되는 것을 감쇄하기 위해 설치된다.The rubber bush 40 transmits the rotational vibration of the propulsion shaft 10 to the fryer 1 when supporting the propulsion shaft 10, which is divided in the middle, with the center bearing 20 attached to the roller 1 freely. It is installed to attenuate it.

즉, 센터베어링(20)을 프로워(1)에 고정하는 브라켓트(30)와 프로워(1)의 사이에 도 2에서와 같이 한쌍의 러버부시(40)가 볼트(2)로 관통되어 너트(3)로 체결 고정되는 것에 의해, 센터베어링(20)과 프로워(1)의 사이에는 이 러버부시(40)가 매개체로 위치되는 결과로 진동의 전달을 감쇄하게 되는 것이다.That is, a pair of rubber bushes 40 penetrates through the bolts 2 as shown in FIG. 2 between the bracket 30 and the prow 1 for fixing the center bearing 20 to the prow 1 and the nut 2. By fastening and fixing to (3), the transmission of vibration is attenuated as a result of the rubber bush 40 being positioned between the center bearing 20 and the prow 1 as a medium.

본 발명의 러버부시(40)는 중앙에 볼트(2)가 관통되도록 홀(43)이 뚫어지고, 브라켓트(30)에 밀착하기 위한 단턱부(44)가 단층지게 성형된 형상으로 상부러버부시(41)와 하부러버부시(42)가 동일한 구조로 한쌍이 마주보게 접한 상태에서 볼트(2)와 너트(3)로 체결하여 센터베어링(20)의 설치가 이루어 지는 것이다.In the rubber bush 40 of the present invention, the hole 43 is drilled so that the bolt 2 penetrates at the center thereof, and the upper rubber bush is formed in the shape of the stepped portion 44 to be in close contact with the bracket 30. 41) and the lower rubber bush (42) in the same structure is in contact with the pair facing each other with the bolt (2) and the nut (3) is to install the center bearing (20).

상기와 같은 본 발명은, 한쌍의 러버부시(40)가 동일구조로 이루어 지므로, 제작을 위한 금형비가 저감된다.In the present invention as described above, since the pair of rubber bushes 40 have the same structure, the mold cost for fabrication is reduced.

또, 부품을 부관 유통하기 위한 물류비가 감소된다.In addition, the logistics cost for distributing parts by subsidiary is reduced.

그리고, 상하용 구분이 없게 되므로 조립성 및 작업성이 향상되는 등의 매우 유용한 발명인 것이다.And since there is no distinction for up-and-down, it is a very useful invention, such as improved assembly property and workability.

Claims (1)

중간이 분할되는 추진축(10)을 프로워(1)에 부착하는 센터베어링(20)으로 지지하고, 이 센터베어링(20)을 프로워(1)에 고정하는 브라켓트(30)와 프로워(1)의 사이에 진동을 감쇄하기 위해 볼트(2)로 체결 고정되는 러버부시(40)에 있어서; 상기 러버부시(40)는 중앙에 볼트(2)가 관통되도록 홀(43)을 뚫고, 브라켓트(30)에 밀착하기 위한 단턱부(44)가 단층지게 성형되어 상하 한쌍으로 대칭되게 결합되도록 구성하는 것을 특징으로 하는 추진축용 러버부시.The bracket 30 and the prow (1) which support the propulsion shaft 10, which is divided in the middle, with the center bearing 20 attached to the prow 1, and fix the center bearing 20 to the prow 1 In the rubber bush 40 is fastened and fixed with a bolt (2) in order to damp the vibration between the; The rubber bush 40 drills the hole 43 so that the bolt 2 penetrates in the center thereof, and the stepped portion 44 for closely contacting the bracket 30 is formed in a single layer to be symmetrically coupled to the upper and lower pairs. Rubber bush for propulsion shaft, characterized in that.
KR1019970010985A 1997-03-28 1997-03-28 Rubber bush for propeller shaft KR100241321B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970010985A KR100241321B1 (en) 1997-03-28 1997-03-28 Rubber bush for propeller shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970010985A KR100241321B1 (en) 1997-03-28 1997-03-28 Rubber bush for propeller shaft

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Publication Number Publication Date
KR19980074955A KR19980074955A (en) 1998-11-05
KR100241321B1 true KR100241321B1 (en) 2000-03-02

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KR1019970010985A KR100241321B1 (en) 1997-03-28 1997-03-28 Rubber bush for propeller shaft

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KR19980074955A (en) 1998-11-05

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