WO2024128331A1 - Vehicle power transmission apparatus having propulsion shaft cover for noise reduction - Google Patents
Vehicle power transmission apparatus having propulsion shaft cover for noise reduction Download PDFInfo
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- WO2024128331A1 WO2024128331A1 PCT/KR2022/020142 KR2022020142W WO2024128331A1 WO 2024128331 A1 WO2024128331 A1 WO 2024128331A1 KR 2022020142 W KR2022020142 W KR 2022020142W WO 2024128331 A1 WO2024128331 A1 WO 2024128331A1
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- propulsion shaft
- power transmission
- noise
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- cover
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 33
- 239000011358 absorbing material Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 2
- 229920005862 polyol Polymers 0.000 claims description 2
- 150000003077 polyols Chemical class 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
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- the present invention relates to a power transmission device for a vehicle. More specifically, by providing a propulsion shaft cover that blocks the radiation path of noise generated by the movement of the propulsion shaft and universal joint in the process of transmitting engine power from the vehicle's power transmission device to the rear axle, the vehicle's interior noise and external noise are reduced. It relates to a power transmission device for a vehicle having a propulsion shaft cover for noise reduction purposes and capable of reducing radiated noise.
- a vehicle's power transmission system transmits power generated by the engine to the driving wheels to move the vehicle.
- Figure 1 is a schematic diagram showing an example of such a conventional vehicle power transmission device.
- a conventional vehicle power transmission device includes an engine 1 that generates the driving force of the vehicle, a transmission 2 that increases and decreases the driving force from the engine 1 according to the driving state of the vehicle and transmits it, and a transmission ( A propulsion shaft (3) that transmits the power from 2) to the rear axle (4), and a rear axle that transmits the driving force transmitted from the propulsion shaft (3) to the left and right rear wheels (6) via the rear wheel axle (5) 4), the rear wheel axle (5) that transmits the driving force of the rear axle (4) to the rear wheels, the rear wheel (6), and the transmission (2) and the rear axle (4) are connected at a predetermined angle. It consists of a universal joint (7), which is a connecting means to smoothly transmit driving force.
- the conventional power transmission device that transmits power from the engine (1) to the rear wheel (6) with these components radiates the noise generated as the propulsion shaft (3) and the universal joint (7) rotate without being filtered. As a result, there was a problem in that the interior and exterior noise of the vehicle increased.
- the object of the present invention is to have a propeller shaft cover for noise reduction that can block the radiation path of noise generated by the rotational movement of the propeller shaft and universal joint in the process of transmitting engine power to the rear axle in the vehicle's power transmission device.
- the purpose is to provide a power transmission device for vehicles.
- a propulsion shaft that transmits engine power to the rear axle through a transmission
- a universal joint mounted on both ends of the propulsion shaft and transmitting driving force between the transmission and the propulsion shaft and between the propulsion shaft and the transmission;
- a rear axle that transmits power transmitted from the engine through the propulsion shaft to the rear wheels through the rear wheel axle;
- a power transmission device for a vehicle having a propulsion shaft cover for noise reduction purposes consisting of a propulsion shaft cover that absorbs or blocks noise generated from the propulsion shaft and the universal joint.
- the present invention by providing a propulsion shaft cover that blocks the radiation path of noise generated by the movement of the propulsion shaft and universal joint in the process of transmitting engine power to the rear axle in the vehicle's power transmission device, the interior noise of the vehicle and It has the effect of reducing externally radiated noise.
- FIG. 1 is a schematic diagram showing an example of a conventional vehicle power transmission device.
- Figure 2 is a schematic diagram showing an embodiment of a vehicle power transmission device having a propulsion shaft cover for noise reduction to which the present invention is applied.
- Figure 2 is a schematic diagram showing an embodiment of a vehicle power transmission device having a propulsion shaft cover for noise reduction to which the present invention is applied.
- the present invention includes an engine (1) that generates the driving force of the vehicle, a transmission (2) that increases and decreases the driving force from the engine (1) and transmits it according to the driving state of the vehicle, and a transmission (2).
- a propulsion shaft (3) that transmits the power to the rear axle (4), a rear axle (4) that transmits the driving force transmitted from the propulsion shaft (3) to the left and right rear wheels (6) via the rear wheel axle (5), and , the rear wheel axle (5), which transmits the driving force of the rear axle (4) to the rear wheels, the rear wheel (6), and the transmission (2) and the rear axle (4) are connected at a predetermined angle to provide driving force.
- It consists of a universal joint (7), which is a connecting means for smoothly transmitting
- It is configured to further include a propulsion shaft cover (11) that absorbs or blocks the generated noise.
- the propulsion shaft cover (11) has a sound-absorbing material (8) that absorbs and eliminates or blocks noise generated from the propulsion shaft (3), and the sound-absorbing material (8) is attached to the inside to shield the noise generated from the propulsion shaft (3). It is located at both ends of the noise shielding cover (9) and the noise shielding cover (9), and is caused by the up and down and left and right movements of the universal joint (7), the universal joint (7) and the propulsion shaft (3) and the noise shielding cover. It consists of a connection part (10) that prevents interference with (9), and the connection part (10) is made of a corrugated pipe.
- the sound absorbing material 8 is made of viscoelastic, natural oil polyol-based foam.
- the present invention provides a power transmission device for a vehicle with a propulsion shaft cover for noise reduction purposes, and is a technology that can be widely used in the vehicle and parts industry to realize its practical and economic value.
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Abstract
The present invention relates to a vehicle power transmission apparatus. More specifically, provided is a vehicle power transmission apparatus having a propulsion shaft cover for the purpose of noise reduction, the indoor noise and external radiation noise of a vehicle being reduced by being equipped with a propulsion shaft cover that blocks the radiation paths of noise generated by the movement of a propulsion shaft and universal joint during transmission of engine power to a rear axle in a vehicle power transmission apparatus.
Description
본 발명은 차량의 동력전달장치에 관한 것이다. 보다 상세하게는 차량의 동력전달장치에서 엔진의 동력을 뒤차축으로 전달하는 과정에서 추진축 및 유니버설 조인트의 운동으로 발생하는 소음의 방사경로를 차단해주는 추진축커버를 구비하게 함으로써, 차량의 실내소음과 외부방사 소음을 저감할 수 있는, 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치에 관한 것이다.The present invention relates to a power transmission device for a vehicle. More specifically, by providing a propulsion shaft cover that blocks the radiation path of noise generated by the movement of the propulsion shaft and universal joint in the process of transmitting engine power from the vehicle's power transmission device to the rear axle, the vehicle's interior noise and external noise are reduced. It relates to a power transmission device for a vehicle having a propulsion shaft cover for noise reduction purposes and capable of reducing radiated noise.
일반적으로 차량의 동력전달장치는 엔진에 의해 발생된 동력이 구동바퀴로 전달되어 차량을 움직일 수 있게 해준다.In general, a vehicle's power transmission system transmits power generated by the engine to the driving wheels to move the vehicle.
도 1은 이러한 종래의 차량용 동력전달장치의 일 예를 나타낸 개략도이다.Figure 1 is a schematic diagram showing an example of such a conventional vehicle power transmission device.
도시된 바와 같이 종래의 차량용 동력전달장치는 차량의 구동력을 발생시키는 엔진(1)과, 차량의 주행상태에 따라 엔진(1)으로부터의 구동력을 증감시켜 전달시켜주는 변속기(2)와, 변속기(2)에서의 동력을 뒤차축(4)으로 전달시키는 추진축(3)과, 추진축(3)으로부터 전달된 구동력을 뒤바퀴축(5)을 거쳐 좌우의 뒤바퀴(6)에 전달하는 뒤차축(4)과, 뒤차축(4)의 구동력을 뒤바퀴로 전달하는 뒤바퀴축(5)과, 뒤바퀴(6) 그리고 소정의 각을 이룬 상태로 변속기(2)와 뒤차축(4)을 연결하여 구동력을 원활하게 전달하기 위한 연결수단인 유니버설 조인트(7)로 구성된다.As shown, a conventional vehicle power transmission device includes an engine 1 that generates the driving force of the vehicle, a transmission 2 that increases and decreases the driving force from the engine 1 according to the driving state of the vehicle and transmits it, and a transmission ( A propulsion shaft (3) that transmits the power from 2) to the rear axle (4), and a rear axle that transmits the driving force transmitted from the propulsion shaft (3) to the left and right rear wheels (6) via the rear wheel axle (5) 4), the rear wheel axle (5) that transmits the driving force of the rear axle (4) to the rear wheels, the rear wheel (6), and the transmission (2) and the rear axle (4) are connected at a predetermined angle. It consists of a universal joint (7), which is a connecting means to smoothly transmit driving force.
하지만 이러한 구성요소를 갖고 엔진(1)으로부터 뒤바퀴(6)로 동력을 전달시키는 종래의 동력전달장치는 추진축(3)과 유니버설 조인트(7)가 회전하면서 발생하게 되는 소음이 걸러짐 없이 그대로 방사되게 되어, 차량의 실내소음 및 외부소음을 증대시킨다는 문제점이 있었다.However, the conventional power transmission device that transmits power from the engine (1) to the rear wheel (6) with these components radiates the noise generated as the propulsion shaft (3) and the universal joint (7) rotate without being filtered. As a result, there was a problem in that the interior and exterior noise of the vehicle increased.
본 발명의 목적은 차량의 동력전달장치에서 엔진의 동력을 뒤차축으로 전달하는 과정에서 추진축 및 유니버설 조인트의 회전운동으로 인해 발생하는 소음의 방사경로를 차단할 수 있는, 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치를 제공함에 있다.The object of the present invention is to have a propeller shaft cover for noise reduction that can block the radiation path of noise generated by the rotational movement of the propeller shaft and universal joint in the process of transmitting engine power to the rear axle in the vehicle's power transmission device. The purpose is to provide a power transmission device for vehicles.
상기 목적을 달성하기 위하여, 본 발명은,In order to achieve the above object, the present invention,
엔진의 동력을 변속기를 거쳐 뒤차축에 전달하는 추진축;A propulsion shaft that transmits engine power to the rear axle through a transmission;
상기 추진축의 양단에 장착되어, 변속기와 추진축 사이와 추진축과 변속기 사이에서의 구동력을 전달하는 유니버설 조인트;A universal joint mounted on both ends of the propulsion shaft and transmitting driving force between the transmission and the propulsion shaft and between the propulsion shaft and the transmission;
엔진으로부터 추진축을 거쳐 전달되는 동력을 뒤바퀴축을 통해 뒤바퀴에 전달하는 뒤차축; 및A rear axle that transmits power transmitted from the engine through the propulsion shaft to the rear wheels through the rear wheel axle; and
상기 추진축과 유니버설 조인트에서 발생하는 소음을 흡수 또는 차단하는 추진축커버로 구성되는, 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치A power transmission device for a vehicle having a propulsion shaft cover for noise reduction purposes, consisting of a propulsion shaft cover that absorbs or blocks noise generated from the propulsion shaft and the universal joint.
를 제공한다.provides.
본 발명에 의하면, 차량의 동력전달장치에서 엔진의 동력을 뒤차축으로 전달하는 과정에서 추진축 및 유니버설 조인트의 운동으로 발생하는 소음의 방사경로를 차단해주는 추진축커버를 구비하게 함으로써, 차량의 실내소음과 외부방사 소음을 저감할 수 있는 효과가 있다.According to the present invention, by providing a propulsion shaft cover that blocks the radiation path of noise generated by the movement of the propulsion shaft and universal joint in the process of transmitting engine power to the rear axle in the vehicle's power transmission device, the interior noise of the vehicle and It has the effect of reducing externally radiated noise.
도 1은 종래의 차량용 동력전달장치의 일 예를 나타낸 개략도.1 is a schematic diagram showing an example of a conventional vehicle power transmission device.
도 2는 본 발명이 적용된 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치의 일 실시예를 나타낸 계통도.Figure 2 is a schematic diagram showing an embodiment of a vehicle power transmission device having a propulsion shaft cover for noise reduction to which the present invention is applied.
도 2는 본 발명이 적용된 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치의 일 실시예를 나타낸 계통도이다.Figure 2 is a schematic diagram showing an embodiment of a vehicle power transmission device having a propulsion shaft cover for noise reduction to which the present invention is applied.
도시된 바와 같이, 본 발명은 차량의 구동력을 발생시키는 엔진(1)과, 차량의 주행상태에 따라 엔진(1)으로부터의 구동력을 증감시켜 전달시켜주는 변속기(2)와, 변속기(2)에서의 동력을 뒤차축(4)으로 전달시키는 추진축(3)과, 추진축(3)으로부터 전달된 구동력을 뒤바퀴축(5)을 거쳐 좌우의 뒤바퀴(6)에 전달하는 뒤차축(4)과, 뒤차축(4)의 구동력을 뒤바퀴로 전달하는 뒤바퀴축(5)과, 뒤바퀴(6), 그리고 소정의 각을 이룬 상태로 변속기(2)와 뒤차축(4)을 연결하여 구동력을 원활하게 전달하기 위한 연결수단인 유니버설조인트(7)로 구성되어, 엔진(1)으로부터 뒤바퀴(6)로 동력을 전달시키는 차량의 동력전달 장치에 추진축(3)과 유니버설 조인트(7)에서 발생하는 소음을 흡수 또는 차단하는 추진축커버(11)를 더 구비하게 한 것으로 구성된다.As shown, the present invention includes an engine (1) that generates the driving force of the vehicle, a transmission (2) that increases and decreases the driving force from the engine (1) and transmits it according to the driving state of the vehicle, and a transmission (2). A propulsion shaft (3) that transmits the power to the rear axle (4), a rear axle (4) that transmits the driving force transmitted from the propulsion shaft (3) to the left and right rear wheels (6) via the rear wheel axle (5), and , the rear wheel axle (5), which transmits the driving force of the rear axle (4) to the rear wheels, the rear wheel (6), and the transmission (2) and the rear axle (4) are connected at a predetermined angle to provide driving force. It consists of a universal joint (7), which is a connecting means for smoothly transmitting It is configured to further include a propulsion shaft cover (11) that absorbs or blocks the generated noise.
여기서, 추진축커버(11)는 추진축(3)에서 발생하는 소음을 흡수하여 없애거나 차단하는 흡음재(8)와, 흡음재(8)가 내부에 부착되며, 추진축(3)에서 발생하는 소음을 차폐시켜 주는 소음차폐용 커버(9) 및 소음차폐용 커버(9)의 양단에 위치하며, 유니버설 조인트(7)의 상하 및 좌우 운동으로 인해 생기는 유니버설 조인트(7) 및 추진축(3)과 소음차폐용 커버(9)와의 간섭을 방지하는 연결부(10)로 구성되며, 연결부(10)는 주름관으로 되어 있다.Here, the propulsion shaft cover (11) has a sound-absorbing material (8) that absorbs and eliminates or blocks noise generated from the propulsion shaft (3), and the sound-absorbing material (8) is attached to the inside to shield the noise generated from the propulsion shaft (3). It is located at both ends of the noise shielding cover (9) and the noise shielding cover (9), and is caused by the up and down and left and right movements of the universal joint (7), the universal joint (7) and the propulsion shaft (3) and the noise shielding cover. It consists of a connection part (10) that prevents interference with (9), and the connection part (10) is made of a corrugated pipe.
한편, 흡음재(8)는 점탄성 천연오일 폴리올계 폼(viscoelastic, natural oil polyol-based foam)으로 제조된다.Meanwhile, the sound absorbing material 8 is made of viscoelastic, natural oil polyol-based foam.
본 발명은 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치를 제공하는 것으로, 차량 및 부품 산업 분야에서 널리 이용하여 그 실용적이고 경제적인 가치를 실현할 수 있는 기술이다.The present invention provides a power transmission device for a vehicle with a propulsion shaft cover for noise reduction purposes, and is a technology that can be widely used in the vehicle and parts industry to realize its practical and economic value.
Claims (1)
- 엔진의 동력을 변속기를 거쳐 뒤차축에 전달하는 추진축;A propulsion shaft that transmits engine power to the rear axle through a transmission;상기 추진축의 양단에 장착되어, 변속기와 추진축 사이와 추진축과 변속기 사이에서의 구동력을 전달하는 유니버설 조인트;A universal joint mounted on both ends of the propulsion shaft and transmitting driving force between the transmission and the propulsion shaft and between the propulsion shaft and the transmission;엔진으로부터 추진축을 거쳐 전달되는 동력을 뒤바퀴축을 통해 뒤바퀴에 전달하는 뒤차축; 및A rear axle that transmits power transmitted from the engine through the propulsion shaft to the rear wheels through the rear wheel axle; and상기 추진축과 유니버설 조인트에서 발생하는 소음을 흡수 또는 차단하는 추진축커버로 구성되며,It consists of a propulsion shaft cover that absorbs or blocks noise generated from the propulsion shaft and the universal joint,상기 추진축커버는,The propulsion shaft cover is,상기 추진축에서 발생하는 소음을 흡수 또는 차단하는 흡음재;A sound-absorbing material that absorbs or blocks noise generated from the propulsion shaft;상기 흡음재가 내부에 부착되며, 추진축에서 발생하는 소음도 차폐시켜 주는 소음차폐용 커버; 및A noise shielding cover on which the sound absorbing material is attached and which also blocks noise generated from the propulsion shaft; and상기 소음차폐용 커버의 양단에 위치하며, 유니버설 조인트의 상하 및 좌우 운동으로 인해 생기는 상기 추진축과 소음차폐용 커버와의 간섭을 방지하는 연결부로 구성되며,It is located at both ends of the noise shielding cover and consists of a connection part that prevents interference between the propulsion shaft and the noise shielding cover caused by the up and down and left and right movements of the universal joint,상기 흡음재는 점탄성 천연오일 폴리올계 폼(viscoelastic, natural oil polyol-based foam)으로 제조되는 것을 특징으로 하는, 소음저감 목적의 추진축커버를 갖는 차량용 동력전달장치.A power transmission device for a vehicle having a propulsion shaft cover for noise reduction, characterized in that the sound-absorbing material is manufactured from viscoelastic, natural oil polyol-based foam.
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EP1146248A1 (en) * | 2000-04-14 | 2001-10-17 | FERRARI S.p.A. | Torsional-vibration damping device for propeller shafts and similar |
JP2001311419A (en) * | 2000-04-28 | 2001-11-09 | Unisia Jecs Corp | Propeller shaft |
US20100048754A1 (en) * | 2006-11-16 | 2010-02-25 | Cargill, Incorporated | Viscoelastic polyurethane foams comprising oligomeric natural oil polyols |
US20140342841A1 (en) * | 2013-05-16 | 2014-11-20 | The Regents Of The University Of Michigan | Viscoelastic dampener |
-
2022
- 2022-12-12 WO PCT/KR2022/020142 patent/WO2024128331A1/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990008750U (en) * | 1997-08-11 | 1999-03-05 | 김무 | Propulsion Shaft Cover of Vehicle Power Train |
EP1146248A1 (en) * | 2000-04-14 | 2001-10-17 | FERRARI S.p.A. | Torsional-vibration damping device for propeller shafts and similar |
JP2001311419A (en) * | 2000-04-28 | 2001-11-09 | Unisia Jecs Corp | Propeller shaft |
US20100048754A1 (en) * | 2006-11-16 | 2010-02-25 | Cargill, Incorporated | Viscoelastic polyurethane foams comprising oligomeric natural oil polyols |
US20140342841A1 (en) * | 2013-05-16 | 2014-11-20 | The Regents Of The University Of Michigan | Viscoelastic dampener |
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