KR20020007701A - a vibration absorption structure of cabin for truck - Google Patents

a vibration absorption structure of cabin for truck Download PDF

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Publication number
KR20020007701A
KR20020007701A KR1020000041105A KR20000041105A KR20020007701A KR 20020007701 A KR20020007701 A KR 20020007701A KR 1020000041105 A KR1020000041105 A KR 1020000041105A KR 20000041105 A KR20000041105 A KR 20000041105A KR 20020007701 A KR20020007701 A KR 20020007701A
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KR
South Korea
Prior art keywords
cabin
hydraulic cylinder
truck
vibration
piston
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KR1020000041105A
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Korean (ko)
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KR100350886B1 (en
Inventor
김두호
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류정열
기아자동차주식회사
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Priority to KR1020000041105A priority Critical patent/KR100350886B1/en
Publication of KR20020007701A publication Critical patent/KR20020007701A/en
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Publication of KR100350886B1 publication Critical patent/KR100350886B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
    • B62D33/0608—Cabs insulated against vibrations or noise, e.g. with elastic suspension pneumatic or hydraulic suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/05—Reducing production costs, e.g. by redesign

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

PURPOSE: Vibration absorbing structure of a cabin for a truck is provided to reduce working process, parts and working hours by absorbing vibration from the cabin with a hydraulic cylinder in traveling without additional buffering units such as a shock absorber or a torsion bar. CONSTITUTION: A hydraulic cylinder(4) is installed between a cabin of a truck and a vehicle body frame, and the cabin is tilted with pushing the cabin up by the hydraulic cylinder. An oil passage(9) is partially formed between a cylinder shell(6) and a piston(7) in the lower part of the hydraulic cylinder with forming clearance between the lower inner periphery of the cylinder shell and the piston. The piston is moved down in traveling without tilting the cabin, and oil is streamed through the oil passage. Vibration from the cabin is absorbed in the hydraulic cylinder with moving oil through the oil passage. Working process, parts and working hours are reduced by absorbing vibration from the cabin with a hydraulic cylinder in traveling without additional buffering units.

Description

트럭의 캐빈 진동흡수구조{a vibration absorption structure of cabin for truck}Vibration absorption structure of cabin for truck

본 발명은 트럭의 캐빈 진동흡수구조에 관한 것으로, 특히 별도의 완충장치가 필요 없이 캐빈의 진동을 흡수할 수 있도록 된 트럭의 캐빈 진동흡수구조에 관한 것이다.The present invention relates to a cabin vibration absorbing structure of a truck, and more particularly to a cabin vibration absorbing structure of a truck that can absorb the vibration of the cabin without the need for a separate shock absorber.

일반적으로 트럭의 엔진룸은 차체의 앞쪽에 형성되어 있어서, 엔진룸을 정비하기 위해서는 캐빈(1)을 차체프레임(2)에 설치된 힌지축(3)을 중심으로 틸팅시키고, 시트를 들어내어 엔진룸을 개방할 수 있도록 되어 있다.In general, the engine room of the truck is formed in front of the vehicle body. To maintain the engine room, the cabin 1 is tilted around the hinge shaft 3 installed on the body frame 2, and the seat is lifted up. To open the door.

따라서, 도 2에 도시된 바와 같이 차체프레임(2)에는 유압실린더(4)가 구비되어 있어서, 필요시 이 유압실린더(4)를 작동시켜 상기와 같이 캐빈(1)을 틸팅시킬 수 있게 된다.Therefore, as shown in FIG. 2, the vehicle body frame 2 is provided with a hydraulic cylinder 4, so that the hydraulic cylinder 4 can be operated to tilt the cabin 1 as described above if necessary.

한편, 트럭이 주행함에 따라 상기 캐빈(1)에는 진동이 발생하게 되는데, 이 진동을 흡수하기 위하여 종래에는 상기 틸팅용 유압실린더(4)와 캐빈(1)의 사이에 설치되는 쇽업소버(5)나 차체프레임에 설치되는 토션바(도시되지 않음) 등을 사용하여 캐빈(1)의 진동을 흡수하였었다.Meanwhile, as the truck travels, the cabin 1 is vibrated, and in order to absorb the vibration, the shock absorber 5 installed between the tilting hydraulic cylinder 4 and the cabin 1 is conventionally used. B was used to absorb the vibration of the cabin (1) using a torsion bar (not shown) installed in the body frame.

그러나, 상기와 같은 캐빈의 진동흡수구조에서는 쇽업소버나 토션바와 같은 별도의 완충수단을 사용하여 캐빈의 진동을 흡수하게 되므로, 장치의 추가로 인한 부품 및 작업공수의 증가가 일어나고, 따라서 소요비용이 상승되는 문제점이 있었다.However, in the vibration absorption structure of the cabin as described above, the vibration of the cabin is absorbed by using a separate shock absorber such as a shock absorber or a torsion bar. There was an issue that was raised.

이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 쇽업소버나 토션바와 같은 별도의 완충장치를 추가설치하지 않고서도 차량 주행시 캐빈에서 발생되는 진동을 흡수할 수 있게 됨으로써 필요 부품 및 작업공수와 소요비용을 절감할 수 있도록 된 트럭의 캐빈 진동흡수구조를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the above problems, it is possible to absorb the vibration generated in the cabin when driving the vehicle without installing a separate shock absorber, such as shock absorber or torsion bar necessary parts and workmanship The purpose of the present invention is to provide a cabin vibration absorption structure of a truck that can reduce the cost and cost.

도 1은 트럭의 측면도,1 is a side view of a truck,

도 2는 종래 트럭의 캐빈 진동흡수구조를 도시한 트럭의 개략 측면도,Figure 2 is a schematic side view of a truck showing a cabin vibration absorption structure of a conventional truck,

도 3은 도 2의 대응도로서, 본 발명에 따른 트럭의 캐빈 진동흡수구조를 도시한 트럭의 개략 측면도,3 is a schematic side view of a truck showing a cabin vibration absorption structure of a truck according to the present invention, corresponding to FIG.

도 4는 본 발명의 요부인 유압실린더의 부분단면도이다.4 is a partial sectional view of a hydraulic cylinder, which is a main part of the present invention.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

1 : 캐빈, 2 : 차체프레임,1: cabin, 2: body frame,

3 : 힌지축, 4 : 유압실린더,3: hinge shaft, 4: hydraulic cylinder,

5 : 쇽업소버, 6 : 실린더쉘,5: shock absorber, 6: cylinder shell,

7 : 피스톤, 8 : 피스톤링,7: piston, 8: piston ring,

9 : 오일유동로.9: oil flow path.

상기와 같은 목적을 달성하기 위한 본 발명은, 캐빈과 차체프레이의 사이에 설치된 유압실린더가 캐빈의 충격을 흡수하도록 된 것으로서, 이 유압실린더는 실린더쉘과 피스톤의 사이에 오일유동로가 형성된 구조로 되어 있다.The present invention for achieving the above object is that the hydraulic cylinder is installed between the cabin and the vehicle body to absorb the shock of the cabin, the hydraulic cylinder has a structure in which an oil flow path is formed between the cylinder shell and the piston It is.

따라서, 캐빈의 진동이 오일의 자유이동에 따라 흡수되도록 되어 있다.Therefore, the vibration of the cabin is absorbed by the free movement of the oil.

이하, 본 발명을 첨부된 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 3은 본 발명에 따른 트럭의 캐빈 진동흡수구조가 적용된 트럭의 개략 측면도로서, 본 발명은 캐빈(1)의 틸팅을 위해 차체프레임(2)에 장착된 유압실린더(4) 자체에서 캐빈(1)으로부터 전해지는 진동을 흡수하는 구조로 되어 있다.3 is a schematic side view of a truck to which a cabin vibration absorbing structure of a truck according to the present invention is applied, the present invention provides a cabin (1) in the hydraulic cylinder (4) itself mounted to the body frame (2) for tilting the cabin (1) The structure absorbs vibrations transmitted from

즉, 상기 유압실린더(4)는 도 4에 도시(유압실린더의 피스톤이 위치된 차체프레임측의 유압실린더 하부단면을 개략도시한 것임)된 바와 같이, 실린더쉘(6)의 하부 내주면과 이 실린더쉘(6)에 내장된 피스톤(7)의 사이에 간극이 형성되어 이 간극이 오일의 유동로(9)로써 기능하도록 된 것이다.That is, the hydraulic cylinder 4 has a lower inner circumferential surface of the cylinder shell 6 and the cylinder as shown in FIG. 4 (which schematically shows a lower end surface of the hydraulic cylinder on the side of the body frame in which the piston of the hydraulic cylinder is located). A gap is formed between the pistons 7 embedded in the shell 6 so that the gap functions as a flow path 9 of oil.

이 오일유동로(9)는 상기 실린더쉘(6)의 길이방향 전체에 형성된 것은 아니고, 하단의 내주면에 대략 5cm정도의 구간에 형성된 것으로서, 캐빈(1)이 틸팅되지 않은 주행상태에서 피스톤(7)이 하측으로 내려와 있으므로 오일유동로(9)를 통해 오일이 유동되면서 캐빈(1)으로부터 전해지는 진동이 유압실린더(4) 내에서 흡수되도록 되어 있다.The oil flow path 9 is not formed in the entire longitudinal direction of the cylinder shell 6, but is formed in a section of about 5 cm on the inner circumferential surface of the lower end, and the piston 7 in the running state in which the cabin 1 is not tilted. ) Is lowered so that the vibration transmitted from the cabin 1 is absorbed in the hydraulic cylinder 4 while the oil flows through the oil flow path 9.

따라서, 별도의 완충장치를 설치할 필요가 없어지므로 부품과 공정수가 줄어 비용의 절감을 꾀할 수 있는 것이다.Therefore, since there is no need to install a separate shock absorber it is possible to reduce the number of parts and processes to reduce the cost.

(미설명 부호 8은 오일시일 또는 피스톤링이며 실제로는 실린더쉘의 내주면에 피스톤이 아닌 이 오일시일 또는 피스톤링이 접촉하게 된다.)(Unmarked 8 is the oil seal or piston ring, and actually the oil seal or piston ring, not the piston, comes into contact with the inner circumferential surface of the cylinder shell.)

한편, 상기 오일유동로(9)가 형성됨으로써 유압이 피스톤(7)에 전해질 때 오일이 새는 만큼의 손실이 발생하게 되므로 유압실린더(4)의 틸팅력이 저하될 것이라는 우려가 생길 수 있으나, 전술한 바와 같이 오일유동로(9)는 실린더 하측의 일부구간에만 형성되고, 또한 상기 오일유동로(9)의 간극은 매우 좁으므로 이 오일유동로(9)를 통해 손실된 유압의 크기는 매우 작은 반면 이에 비해 캐빈틸팅시 유압실린더(4)에 가해지는 유압은 매우 크므로 전체적으로 보아 오일유동로(9)의 형성이 유압실린더(4)의 틸팅력을 저하시키지는 않게 된다.On the other hand, since the oil flow path (9) is formed, the oil leakage occurs when the oil is delivered to the piston (7), so that there is a concern that the tilting force of the hydraulic cylinder (4) will be lowered, but there is a concern that As described above, the oil flow path 9 is formed only in a portion of the lower side of the cylinder, and since the gap of the oil flow path 9 is very narrow, the amount of oil pressure lost through the oil flow path 9 is very small. On the contrary, since the hydraulic pressure applied to the hydraulic cylinder 4 during cabin tilting is very large, the formation of the oil flow path 9 does not lower the tilting force of the hydraulic cylinder 4 as a whole.

이상 설명한 바와 같이 본 발명에 따르면, 유압실린더 자체에서 주행시 발생되는 캐빈진동을 흡수할 수 있게 됨으로써 별도의 완충부재를 설치할 필요가 없게 되어 부품 및 작업공수의 절감 및 이에 따라 생산비용이 저감되는 효과가 있다.As described above, according to the present invention, it is possible to absorb the cabin vibration generated when driving in the hydraulic cylinder itself, there is no need to install a separate shock absorbing member to reduce the number of parts and workmanship and accordingly the effect of reducing the production cost have.

Claims (1)

캐빈(1)과 차체프레임(2)의 사이에 유압실린더(4)가 구비되어 이 유압실린더(4)가 상기 캐빈(1)을 밀어올려 틸팅시키도록 된 트럭의 틸팅구조에 있어서,In the tilting structure of a truck, a hydraulic cylinder (4) is provided between the cabin (1) and the body frame (2) so that the hydraulic cylinder (4) pushes up and tilts the cabin (1). 상기 유압실린더(4)의 하부 일부구간에는 실린더쉘(6)과 피스톤(7)의 사이에 오일유동로(9)가 형성된 것을 특징으로 하는 트럭의 캐빈 진동흡수구조.Cabin vibration absorption structure of the truck, characterized in that the oil flow path (9) is formed between the cylinder shell (6) and the piston (7) in the lower portion of the hydraulic cylinder (4).
KR1020000041105A 2000-07-18 2000-07-18 a vibration absorption structure of cabin for truck KR100350886B1 (en)

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Application Number Priority Date Filing Date Title
KR1020000041105A KR100350886B1 (en) 2000-07-18 2000-07-18 a vibration absorption structure of cabin for truck

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Application Number Priority Date Filing Date Title
KR1020000041105A KR100350886B1 (en) 2000-07-18 2000-07-18 a vibration absorption structure of cabin for truck

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KR100350886B1 KR100350886B1 (en) 2002-09-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160079601A (en) 2014-12-26 2016-07-06 엘에스엠트론 주식회사 Tractor
KR20160085188A (en) 2015-01-07 2016-07-15 엘에스엠트론 주식회사 Tractor
KR20160085186A (en) 2015-01-07 2016-07-15 엘에스엠트론 주식회사 Tractor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160079601A (en) 2014-12-26 2016-07-06 엘에스엠트론 주식회사 Tractor
US10266213B2 (en) 2014-12-26 2019-04-23 Ls Mtron Ltd. Tractor
KR20160085188A (en) 2015-01-07 2016-07-15 엘에스엠트론 주식회사 Tractor
KR20160085186A (en) 2015-01-07 2016-07-15 엘에스엠트론 주식회사 Tractor

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