KR100263658B1 - Cab titlting device for truck - Google Patents

Cab titlting device for truck Download PDF

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Publication number
KR100263658B1
KR100263658B1 KR1019970033102A KR19970033102A KR100263658B1 KR 100263658 B1 KR100263658 B1 KR 100263658B1 KR 1019970033102 A KR1019970033102 A KR 1019970033102A KR 19970033102 A KR19970033102 A KR 19970033102A KR 100263658 B1 KR100263658 B1 KR 100263658B1
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KR
South Korea
Prior art keywords
cap
hydraulic
actuator
switching valve
operating oil
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KR1019970033102A
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Korean (ko)
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KR19990010321A (en
Inventor
이춘근
Original Assignee
정몽규
현대자동차주식회사
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Priority to KR1019970033102A priority Critical patent/KR100263658B1/en
Publication of KR19990010321A publication Critical patent/KR19990010321A/en
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Publication of KR100263658B1 publication Critical patent/KR100263658B1/en

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    • 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
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • B62D33/07—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable characterised by the device for locking the cab in the tilted or in the driving position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

PURPOSE: A device for tilting a cap of a truck is provided to tilt the cap by using operating oil of a power steering device. CONSTITUTION: A cap tilting device comprises: a switching valve(10) installed on a hydraulic line of a power steering device for controlling supply of operating oil; a hydraulic actuator(20) receiving operating oil through the switching valve and having a hook combined to a cap and a hinge rotatably combined to a lower body of the cap; and a release valve(30) keeping pressure of the operating oil for restraining the action of the actuator and discharging the oil-hydraulic pressure. To tilt the cap for detection of an engine and maintenance, the cap is easily tilted by using the operating oil. Therefore, work efficiency is improved and components are used practically.

Description

화물자동차의 캡 틸팅장치Cap tilting device of lorry

본 발명은 화물자동차의 캡 틸팅장치에 관한 것으로, 더욱 상세하게는 화물자동차에 구비되어 있는 기존의 파워스티어링 장치의 유압을 이용하여 캡을 틸팅시킬 수 있도록 한 화물자동차의 캡 틸팅장치에 관한 것이다.The present invention relates to a cab tilting device of a freight vehicle, and more particularly, to a cab tilting device of a freight vehicle to tilt the cap by using the hydraulic pressure of the existing power steering device provided in the freight vehicle.

일반적으로, 화물자동차의 엔진룸은 운전에 필요한 각종 조정장치가 구비되어 있는 캡의 하부에 위치에 있으므로 상기 엔진룸에 탑재된 엔진의 점검 또는 정비를 위해서는 상기 캡을 틸팅시켜야 한다.In general, the engine room of the lorry is located at the lower part of the cap provided with various adjustment devices required for driving, so the cap should be tilted for checking or maintenance of the engine mounted in the engine room.

그러므로, 화물자동차에는 상술한 바와같이 엔진점검 또는 정비작업을 실시할 때 캡을 틸팅시키기 위한 캡 틸팅장치를 구비하고 있다.Therefore, the freight car is provided with a cap tilting device for tilting the cap when performing the engine inspection or maintenance work as described above.

상술한 바와갈은 종래 기술에 따른 캡 틸팅장치는 유압액츄에이터와 유압펌프 및 유압라인으로 구성되는데 즉, 도1에 도시된 바와 같이 유압액츄에이터(61)의 선단부는 차체(102)에 고정 설치됨과 더불어 후단부는 캡(101)의 하부에 고정설치되면서 수동으로 작등되는 유압펌프(62)를 통하여 작동유를 공급받아 작동되게 되어 있다.As described above, the cap tilting device according to the related art is composed of a hydraulic actuator, a hydraulic pump, and a hydraulic line. That is, as shown in FIG. 1, the front end of the hydraulic actuator 61 is fixedly installed to the vehicle body 102. The rear end is fixedly installed at the lower portion of the cap 101 and is operated by receiving hydraulic oil through a hydraulic pump 62 operated manually.

상기한 바와같이 된 종래의 캡 틸팅장치는 운전자가 엔진룸의 엔진검검 또는 정비를 실시하기 위하여 캡(101)의 잠금장치를 해제하고 유압펌프(62)의 펌핑하여 작동유를 유압액츄에이터(61)에 공급하면, 상기 유압액츄에이터(61)의 피스톤이 돌출되며 캡(101)을 들어올리므로 캡(101)이 열려진다.In the conventional cap tilting device as described above, the driver releases the lock of the cap 101 and pumps the hydraulic pump 62 so as to perform the engine inspection or maintenance of the engine room. When supplied, the piston of the hydraulic actuator 61 protrudes and lifts the cap 101 so that the cap 101 is opened.

그리고, 엔진점검 또는 정비작업이 완료되어 들어올려진 캡(101)을 닫고자 할 경우에는 유압펌프(62)의 릴리스밸브를 열면 유압액츄에이터(61)에 공급된 작동유가 캡(101)의 자중에 배출되어 서서히 닫히게 된다.Then, in order to close the lifted cap 101 after the engine inspection or maintenance work is completed, when the release valve of the hydraulic pump 62 is opened, the hydraulic oil supplied to the hydraulic actuator 61 is discharged to the weight of the cap 101. It will close slowly.

그런데, 상술한 바와같은 종래의 캡 틸팅장치에 의하면, 캡(101)을 열고자 할 경우에는 운전자가 유압펌프(62)를 펌핑하여 유압액츄에이터(61)에 작동유를 공급하여야 하므로 상당한 수고를 필요로 하게됨과 더불어 별도 구비된 유압펌프(62)로 인하여 생산원가가 상승되는 문제점이 있다.By the way, according to the conventional cap tilting device as described above, when the driver to open the cap 101, the driver should pump the hydraulic pump 62 to supply hydraulic oil to the hydraulic actuator 61, which requires considerable effort. In addition, there is a problem that the production cost is increased due to the hydraulic pump 62 provided separately.

이에 본 발명은 상술한 문제점을 해결하기 위하여 창출된 것으로, 화물자동차에 구비되어 있는 기존의 파워스티어링 장치의 작동유를 이용하여 캡을 틸팅시킬 수 있도록 함을 본 발명의 목적으로 한다.Accordingly, the present invention was created to solve the above-described problems, and an object of the present invention is to enable tilting of a cap by using hydraulic oil of an existing power steering device provided in a freight vehicle.

상기 목적을 달성하기 위한 본 발명의 구성은 화물 자동차의 캡이 유압에 의하여 틸팅되도록 파워스티어링 장치의 유압라인에 설처되면서 작동유의 공급을 제어하는 절환밸브와, 이 절환밸브를 통하여 작동유를 공급받으면서 선단부에는 캡과결합되는 걸고리가 형성됨과 더불어 후단부에는 캡의 하부 차체에 회동 가능하게 결합되는 힌지부가 형성된 유압액츄에이터 및, 이 유압액츄에이터의 작동이 제한되게 상기 절환밸브를 통하여 공급된 작동유의 압력을 일정 압력 이하로 유지시킴과더불어 배출시키는 릴리스밸브로 구성된 것으로, 화물자동차를 운행 중 엔진룸의 엔진점검 또는 정비작업을 실시하기 위하여 캡을 열고자 할 경우에는 차체에 회동가능하게 결합된 유압액츄에이터를 회동시켜 걸고리를 캡에 결합시킨 후 절환밸브를 조작하여 파워스티어링 유압펌프의 유압을 상기 유압액츄에이터에 공급시키면,이 유압액츄에이터의 피스톤이 돌출되어 캡을 회동시키므로 상기 캡이 열려지게 되고, 캡이 완전히 열려져 더이상 회동되지 않아 유압액츄에이터 내부 작동유의 압력이 일정압력이상으로 상승되면 릴리스밸브가 상기 유압에 의하여 열려져 작동유가 배출되므로 캡에 과도한 회전력이 작용되지 않게 됨과 더불어 열림 상태를 유지된다.The configuration of the present invention for achieving the above object is a switch valve for controlling the supply of hydraulic oil while being installed in the hydraulic line of the power steering device so that the cab of the freight vehicle is tilted by the hydraulic pressure, and the end portion while receiving the hydraulic oil through the switching valve The hook is formed at the rear end, and at the rear end, a hydraulic actuator having a hinge portion coupled to the lower body of the cap to be rotatable, and the pressure of the hydraulic oil supplied through the switching valve to restrict the operation of the hydraulic actuator are fixed. It is composed of a release valve which keeps it under pressure and discharges it.In order to open the cap to carry out engine inspection or maintenance work in the engine room while operating a lorry, a hydraulic actuator pivotably coupled to the body is rotated. The hook to the cap and operate the selector valve to When the hydraulic pressure of the steering hydraulic pump is supplied to the hydraulic actuator, the piston of the hydraulic actuator protrudes and rotates the cap so that the cap is opened. When it is raised to the release valve is opened by the hydraulic pressure is discharged the hydraulic fluid, so that the excessive rotational force is not applied to the cap and maintains the open state.

그리고, 엔진점검 또는 정비작업이 완료되어 캡을 닫고자 할 경우에는 조작된 절환밸브를 원래의 상태로 복귀시키고 릴리스밸브를 완전히 개방시켜서 유압액츄에이터 내부의 작동유를 캡의 자중에 의하여 배출시켜 캡이 닫혀지게 한 후에 상기 유압액츄에이터의 걸고리를 캡에서 분리시키므로 모든 작업이 완료된다.If the cap is to be closed after the engine inspection or maintenance work is completed, the operated switching valve is returned to its original state, the release valve is completely opened, and the hydraulic oil inside the hydraulic actuator is discharged by the weight of the cap to close the cap. After lifting, the hook of the hydraulic actuator is detached from the cap so that all the work is completed.

이상과 같이 본 발명은 별도의 유압장치를 사용하지 않고 기존의 파워스티어링 장치의 작동유를 이용하여 캡을 틸팅시키므로 작업성이 향상됨과 더불어 운전자의 작업부담을 줄이고 파워스티어링 장치의 활용도를 높인 것이다.As described above, the present invention is to tilt the cap by using the hydraulic fluid of the existing power steering device without using a separate hydraulic device, thereby improving workability and reducing the work load of the driver and increasing the utilization of the power steering device.

도1은 종래 기술에 따른 캡 틸팅장치의 일 실시예를 보인 구성도.1 is a block diagram showing an embodiment of a cap tilting device according to the prior art.

도2은 본 발명에 따른 캡 틸팅장치의 일 실시예를 보인 구성도.Figure 2 is a block diagram showing an embodiment of the cap tilting device according to the present invention.

도3은 본 발명에 따른 유압액츄에이터와 캡의 결합상태를 보인 상세사시도.Figure 3 is a detailed perspective view showing a coupling state of the hydraulic actuator and the cap according to the present invention.

* 도면의 주요부호에 대한 부호의 설명* Explanation of symbols for major symbols in the drawings

10 : 절환밸브 20 : 유압액츄에이터10: switching valve 20: hydraulic actuator

21 : 피스톤 22 : 힌지부21: piston 22: hinge portion

23 : 걸고리 30 : 릴리스밸브23: hook 30: release valve

31 : 볼밸브 32 : 스프링31: ball valve 32: spring

33 : 밸브실 40 : 결합봉33: valve chamber 40: coupling rod

이하 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail with reference to the accompanying drawings.

도2은 본 발명에 따른 캡 틸팅장치의 일실시예를 보인 구성도이고, 도3은 본 발명에 따른 유압액츄에이터와 캡의 결합상태를 보인 상세사시도로서, 본 발명에 따른 화물자동차의 캡 틸팅장치는 기존에 구비되어 있는 파워스티어링 장치를 이용하여 캡(101)을 틸팅시킬 수 있도록 한 장치인 바, 이와같은 본 발명에 따른 캡 틸팅장치는 절환밸브(10)와 유압액츄에이터(20) 및 릴리스밸브(30)로 구성되는데 즉, 도2에 도시된 바와 같이 스티어링 유압펌프(71)와 리져버탱크(73) 및 스티어링 기어박스(72)로 구성된 파워스티어링 장치에서 상기 스티어링 유압펌프(71)에서 스티어링 기어박스(72)로 작동유가 공급되는 유압라인상에 설치되어 있는 절환밸브(10)는 캡(101)이 유압에 의하여 틸팅될 수 있도록 스티어링 유압펌프(71)에서 발생된 작동유의 흐름이 제어되게 하고, 이 절환밸브(10)를 통하여 유압을 공급받는 유압액츄에이터(20)의 피스톤(21) 외측단부에는 캡(101) 하부의 결합봉(40)과 결합되는 걸고리(22)가 형성됨과 더불어 하단부에는 차체(102)에 회동 가능하게 결합된 힌지부(23)가 형성되어 있다.Figure 2 is a schematic view showing an embodiment of the cap tilting device according to the present invention, Figure 3 is a detailed perspective view showing a coupling state of the hydraulic actuator and the cap according to the present invention, the cap tilting device of a freight vehicle according to the present invention Is a device for tilting the cap 101 by using a power steering device that is provided in the existing, such a cap tilting device according to the present invention is the switching valve 10 and the hydraulic actuator 20 and the release valve 30, that is, the steering hydraulic pump 71, the steering tank 73 and the steering gear box 72 in the power steering device composed of the steering hydraulic pump 71 as shown in Figure 2 The switching valve 10 installed on the hydraulic line through which the hydraulic oil is supplied to the gearbox 72 is used to control the flow of the hydraulic oil generated from the steering hydraulic pump 71 so that the cap 101 can be tilted by hydraulic pressure. Ha At the outer end of the piston 21 of the hydraulic actuator 20 supplied with the hydraulic pressure through the switching valve 10, a hook 22 coupled to the coupling rod 40 under the cap 101 is formed and a lower end thereof. The hinge portion 23 is rotatably coupled to the vehicle body 102.

그리고, 럴리스밸브(30)는 상기 유압액츄에이터(20)의 작동이 제한되게 절환밸브(10)를 통하여 공급된 작동유의 압력이 일정압력이상이 되면 자동으로 배출시키고 상기 유압액츄에이터의 작동유를 리져버탱크(73)로 배출시킬 수 있도록 스프링(32)에 의하여 탄성 지지되어 있는 볼밸브(31) 및 상기 볼밸브(31)가 내재된 밸브실(33)로 구성되어 있다.Then, the release valve 30 is automatically discharged when the pressure of the hydraulic oil supplied through the switching valve 10 to a certain pressure or more to limit the operation of the hydraulic actuator 20 and the hydraulic oil of the hydraulic actuator reservoir The ball valve 31 which is elastically supported by the spring 32 so that it may be discharged | emitted to the tank 73 is comprised, and the valve chamber 33 in which the said ball valve 31 was built was comprised.

이하 본 발명의 작용에 대하여 상세히 설명하면 다음과 같다.Hereinafter will be described in detail with respect to the operation of the present invention.

상기한 바와 같이 된 본 발명에 따른 캡 틸팅장치는 화물자동차를 운행 중 엔진룸의 엔진점검 또는 정비작업을 실시하기 위하여 캡(101)을 열고자 할 경우에는 차체(102)에 회동 가능하게 결합된 유압액츄에이터(20)를 회동시켜 걸고리(22)를 캡(101)의 결합봉(40)에 결합시킨 후 절환밸브(10)를 조작하여 스티어링 유압펌프(71)의 작동유를 상기 유압액츄에이터(20)로 공급되게 하면, 상기 작동유에 의하여 유압액츄에이터(20)의 피스톤(21)이 돌출되어 캡(101)이 회동되어 열려지게 되며, 상기 캡(101)이 완전히 열려져 유압액츄에이터(20) 내부에 공급된 작동유의 압력이 일정압력이상으로 상승되어 볼밸브(31)와 탄성 결합된 스프링(32)의 탄성력보다 높아지면 상기 볼밸브(31)가 열려 작동유가 배출되므로 캡(101)에 과도한 회전력이 작용되지 않음과 더불어 열림 상태가 유지된다.The cap tilting device according to the present invention as described above is rotatably coupled to the vehicle body 102 when the cap 101 is to be opened in order to perform the engine inspection or maintenance work of the engine room while the lorry is in operation. The hydraulic actuator 20 is rotated to engage the hook 22 with the coupling rod 40 of the cap 101, and then operate the switching valve 10 to operate the hydraulic oil of the steering hydraulic pump 71 to the hydraulic actuator 20. When supplied to the, the piston 21 of the hydraulic actuator 20 is protruded by the hydraulic fluid to open the cap 101 is rotated, the cap 101 is completely opened and supplied to the hydraulic actuator 20 When the pressure of the hydraulic oil rises above a certain pressure and becomes higher than the elastic force of the spring 32 elastically coupled with the ball valve 31, the ball valve 31 is opened to discharge the hydraulic oil so that excessive rotational force is not applied to the cap 101. Open with no It is maintained.

그리고, 엔진점검 또는 정비작업이 완료되어 캡(101)을 닫고자 할 경우에는 조작된 절환밸브(10)를 원래의 상태로 조작하고 릴리스밸브(30)를 완전히 개방시키면, 유압액츄에이터(20) 내부의 작동유가 캡(101)의 자중에 의하여 상기 유압액츄에이터(20)에서 배출되어 캡(101)이 닫혀지게 된다.When the engine inspection or maintenance work is completed and the cap 101 is to be closed, the operated switching valve 10 is operated in the original state and the release valve 30 is completely opened. Then, the hydraulic actuator 20 is opened. The hydraulic fluid of the is discharged from the hydraulic actuator 20 by the weight of the cap 101 is to close the cap 101.

상기와 같이 캡(101)이 완전히 닫히면 상기 유압액츄에이터(20)의 걸고리(22)를 캡(10l)에서 분리시켜 차체(102)에 유동되지 않게 고정시킨다.When the cap 101 is completely closed as described above, the hook 22 of the hydraulic actuator 20 is separated from the cap 10l to fix the cap 101 to the vehicle body 102.

이상과 같이 된 본 발명에 따른 캡 틸팅장치에 의하면, 화물자동차의 엔진점검 또는 정비작업을 실시하고자 할 경우 화물자동차에 구비되어 있는 파워스티어링 장치를 이용하여 캡의 틸팅작업을 용이하게 실시할 수 있으므로 작업성이 향상됨과 더불어 구성장치의 활용도를 높인 매우 유용한 것이다.According to the cap tilting device according to the present invention as described above, if you want to carry out the engine inspection or maintenance work of the lorry, the tilting operation of the cap can be easily performed using the power steering device provided in the lorry The workability is improved and the utilization of the component is very useful.

Claims (1)

화물 자동차의 캡(101)이 작동유에 의하여 틸팅되도록 파워스티어링 장치의 유압라인상에 설치되면서 작동유의 공급을 게어하는 절환밸브(10)와, 이 절환밸브(10)를 통하여 작동유를 공급받으면서 선단부에는 캡(101)과 결합되는 걸고리(22)가 형성됨과 더불어 후단부에는 캡(101)의 하부 차체(102)에 회동 가능하게 결합되는 힌지부(23)가 형성된 유압액츄에이터(20) 및, 이 유압액츄에이터(20)의 작동이 제한되게 상기 절환밸브(10)를 통하여 공급된 작동유의 압력을 일정압력 이하로 유지시킴과 더불어 배출시키는 릴리스밸브(30)로 구성된 화물자동차의 캡 틸팅장치.The switch 101 is installed on the hydraulic line of the power steering device so that the cab 101 of the lorry is tilted by the hydraulic oil and the hydraulic oil is supplied through the switching valve 10 to the front end thereof. The hook 22 is formed to be coupled to the cap 101 and the hydraulic actuator 20 having the hinge portion 23 formed at the rear end of the cap 101 to be rotatably coupled to the lower body 102 of the cap 101 and the hydraulic pressure. Cap tilting device of the freight vehicle consisting of a release valve (30) for maintaining the pressure of the hydraulic oil supplied through the switching valve (10) below a predetermined pressure so as to restrict the operation of the actuator (20).
KR1019970033102A 1997-07-16 1997-07-16 Cab titlting device for truck KR100263658B1 (en)

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KR100263658B1 true KR100263658B1 (en) 2000-08-01

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