KR102513217B1 - Multipurpose Road Management Vehicle with Hydraulic System integration Drive System Technology - Google Patents

Multipurpose Road Management Vehicle with Hydraulic System integration Drive System Technology Download PDF

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Publication number
KR102513217B1
KR102513217B1 KR1020230016321A KR20230016321A KR102513217B1 KR 102513217 B1 KR102513217 B1 KR 102513217B1 KR 1020230016321 A KR1020230016321 A KR 1020230016321A KR 20230016321 A KR20230016321 A KR 20230016321A KR 102513217 B1 KR102513217 B1 KR 102513217B1
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South Korea
Prior art keywords
gear
low
wheel drive
idle
speed driving
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KR1020230016321A
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Korean (ko)
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서진석
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리텍 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/10—Housings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

The present invention relates to a multipurpose road management vehicle with hydraulic system integration drive system technology and, in particular, to a new concept of technology, which selects four-wheel drive in a mountain area and when the power of a vehicle is required during an operation of the multipurpose diesel road management vehicle and selects low-speed drive using a hydraulic motor when the low-speed drive is required. A conventional multipurpose road management vehicle has a problem of causing inconvenience that an operator should pay attention to manually keeping neutrality of transmission all the time during low-speed drive and, when the operator does not comply with this, causing a load and damage to an engine or power transfer system. To solve the problem, the present invention allows a second clutch gear inside a transfer to be connected to a rear-wheel driving axle to enable the front wheel and the rear wheel to rotate together when the four-wheel drive is selected and, during the low-speed drive according to the driving of the hydraulic motor, allows the second clutch gear to be released from the rear-wheel driving axle and block driving power of the hydraulic motor from being automatically transferred to the reverse engine through the front-wheel driving axle.

Description

유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차{Multipurpose Road Management Vehicle with Hydraulic System integration Drive System Technology}Multipurpose Road Management Vehicle with Hydraulic System integration Drive System Technology}

본 발명은 디젤용 다목적 도로관리차의 운용시 산악지형 및 차량의 힘이 필요할 때에는 4륜구동을 선택하고, 저속주행을 필요로 할 때에는 유압모터를 이용한 저속주행을 선택하는 신개념의 기술에 관한 것이다.The present invention relates to a new concept technology that selects four-wheel drive when a mountainous terrain and vehicle power are required when operating a multi-purpose road management vehicle for diesel, and selects low-speed driving using a hydraulic motor when low-speed driving is required.

본 발명은 화물의 적재와 함께 차량의 전방이나 적재함에 도로 관리 및 유지를 위해 사용되는 각종 작업장비를 장착하여 차도 및 도로변의 동절기 제설작업 또는 하절기 방제작업 및 미세먼지 방지 등의 다양한 작업을 수행하면서 도로를 유지, 관리하는 차량을 일컫는다.The present invention is equipped with various work equipment used for road management and maintenance in the front or loading box of the vehicle along with the loading of cargo to perform various tasks such as snow removal work in winter or prevention of fine dust on roads and roadsides in winter or prevention of fine dust in summer. Refers to vehicles that maintain and manage roads.

상기 다목적 도로관리차는 차량의 전방 및 후방에 제설기, 얼음파쇄기, 살수장치, 제초기, 스노우 블로어, 살포기, 가이드레일청소기. 터널청소기, 도로보수장비 등 다양한 종류의 작업장치를 선택적으로 장착하여 운용하는 것으로, 상기 작업장치는 유압을 동력원으로 이용하여 작동하고 있다.The multi-purpose road management vehicle has a snow remover, an ice crusher, a watering device, a weeder, a snow blower, a spreader, and a guide rail cleaner at the front and rear of the vehicle. It selectively mounts and operates various types of work devices such as tunnel cleaners and road repair equipment, and the work devices operate using hydraulic pressure as a power source.

그런데 기존 다목적 도로관리차는 4륜구동이나 저속주행을 필요로 하는 장비를 사용시 4륜구동과 저속주행을 선택적으로 사용할 수 없어 효율적인 장비사용이 어려운 것이었다.However, when using equipment requiring 4-wheel drive or low-speed driving, existing multi-purpose road management vehicles cannot selectively use 4-wheel drive and low-speed driving, making it difficult to efficiently use the equipment.

이러한 실정을 감안하여 4륜구동이 가능한 다목적 도로관리차에 전기배터리와 전기모터를 이용하여 저속주행을 가능하게 하는 기술이 제안되고 있고, 이와 관련한 대표적인 최신의 선행기술로는 본 발명 출원인의 선등록 발명인 「특허등록 제2471149호, 명칭/ 특장차량용 하이브리드 친환경 다목적 도로관리차」가 개시되고 있다.In view of this situation, a technology for enabling low-speed driving by using an electric battery and an electric motor in a multi-purpose road management vehicle capable of four-wheel drive has been proposed. [Patent Registration No. 2471149, name/hybrid eco-friendly multi-purpose road management vehicle for special vehicles] has been disclosed.

상기 선행기술은 4륜구동의 디젤 특장차량에 전기모터로 구동하는 하이브리드 방식을 접목하여 선택적으로 저속주행이나 4륜구동이 가능한 효과를 제공한다.The prior art combines a hybrid method driven by an electric motor with a four-wheel drive diesel special vehicle, thereby selectively providing an effect of enabling low-speed driving or four-wheel drive.

이러한 선행기술은 전기모터의 구동에 따른 저속주행시 필수적으로 변속기를 중립으로 유지하여야만 전기모터의 구동력이 역방향인 엔진으로 전달됨을 차단하여 엔진의 손상을 방지할 수 있는 시스템의 특성상 작업자가 매번 수동으로 변속기의 중립을 유지하는데 신경을 써야만 하는 불편함이 따르고, 만일 이를 제대로 지키지 않을 경우 엔진이나 동력전달체계에 부하가 걸려 파손되는 심각한 문제점이 야기된다.In this prior art, when driving at low speed due to the driving of the electric motor, the transmission must be kept in neutral to block the transmission of the driving force of the electric motor to the engine in the reverse direction, thereby preventing engine damage. The inconvenience of having to pay attention to maintaining the neutral position of the vehicle, and if this is not properly maintained, serious problems such as damage to the engine or power transmission system due to load are caused.

본 발명은 상기한 과제를 해결하기 위한 수단으로 4륜구동을 선택할 경우 트랜스퍼 내부의 제2 클러치기어가 후륜구동축과 접속하면서 전륜과 후륜이 함께 회전하도록 하고, 유압모터의 구동에 따른 저속주행시에는 상기 제2 클러치기어가 후륜 구동축과 단절되면서 자동으로 유압모터의 구동력이 전륜 구동축을 통해 역방향인 엔진으로 전달됨을 차단할 수 있도록 하는 기술을 강구한다.In the present invention, when four-wheel drive is selected as a means for solving the above problems, the second clutch gear inside the transfer is connected to the rear wheel drive shaft so that the front and rear wheels rotate together, and when driving at low speed according to the drive of the hydraulic motor, the second clutch gear is connected to the rear wheel drive shaft. 2 Develop a technology that can automatically block the transmission of the driving force of the hydraulic motor to the engine in the opposite direction through the front wheel drive shaft when the clutch gear is disconnected from the rear wheel drive shaft.

또한, 본 발명은 4륜구동시 작업자가 실수로 저속주행을 선택할 경우 보호센서의 설정지점을 벗어나는 저속주행용 클러치기어를 감지하는 순간 자동으로 경고등을 점등함과 동시에 시스템적으로 차량이 정지될 수 있도록 하는 기술을 강구한다.In addition, the present invention, when an operator accidentally selects low-speed driving during four-wheel drive, automatically turns on a warning light as soon as it detects a clutch gear for low-speed driving that deviate from the set point of the protection sensor so that the vehicle can be systematically stopped Strive for the skills to

본 발명에 따르면, 작업차량의 전방 혹은 적재함에 각종 장비를 선택적으로 장착하여 도로 관리가 가능함은 물론 차량의 작업상태에 따라 4륜구동 및 저속주행장치를 선택적으로 사용 가능하고, 특히 산악지형 및 차량의 힘이 필요할 때 4륜구동이 가능하도록 트랜스퍼 케이스를 통해 전륜 구동축 및 후륜 구동축으로 전달하며, 저속주행이 필요할 때에는 저속주행이 가능하도록 저속주행 구동력으로 변환하여 후륜구동축에 전달함과 아울러 유압모터의 구동력이 전륜구동축을 통해 역방향인 엔진으로 전달됨을 자동으로 차단함으로써 사용이 매우 편리하고, 엔진이나 동력전달체계에 부하가 걸려 파손됨을 방지하는 효과를 제공한다.According to the present invention, road management is possible by selectively installing various equipment in the front or loading box of a working vehicle, and it is possible to selectively use a four-wheel drive and low-speed driving device according to the working condition of the vehicle. When power is needed, it is transmitted to the front and rear drive shafts through the transfer case to enable 4-wheel drive, and when low-speed driving is required, it is converted into low-speed driving power and transmitted to the rear wheel drive shaft, and the driving force of the hydraulic motor is It is very convenient to use by automatically blocking transmission to the engine in the reverse direction through the front wheel drive shaft, and provides an effect of preventing damage caused by a load on the engine or power transmission system.

아울러 유압모터에 의한 저속주행시에도 엔진이 정상적으로 구동됨으로써 엔진으로부터 인출한 동력을 이용하여 각종 작업장치를 정상적으로 가동하여 다양한 작업을 수행하면서 도로를 유지, 관리할 수 있는 효과를 제공한다.In addition, since the engine is normally driven even during low-speed driving by the hydraulic motor, various work devices are normally operated using the power drawn from the engine to perform various tasks while maintaining and managing the road.

또한, 본 발명은 4륜구동시 작업자가 실수로 저속주행을 선택하더라도 이를 즉시 감지하여 자동으로 경고등을 점등함과 동시에 시스템적으로 차량이 정지됨으로써 안전사고를 예방하는 효과를 제공한다.In addition, the present invention provides an effect of preventing safety accidents by immediately detecting even if an operator accidentally selects low-speed driving during four-wheel drive, automatically turning on a warning light and simultaneously stopping the vehicle systematically.

도 1은 본 발명이 적용된 유압시스템 통합 구동장치의 정단면도
도 2는 본 발명에 따른 4륜구동시 제1, 제2 클러치기어의 이동상태도
도 3은 본 발명에 따른 4륜구동시 유압시스템 통합 구동장치의 작동상태도
도 4는 본 발명에 따른 저속주행시 제1, 제2, 제3 클러치기어의 이동상태도
도 5는 본 발명에 따른 저속주행시 유압시스템 통합 구동장치의 작동상태도
도 6은 본 발명 유압모터 보호센서의 설치상태도
도 7은 본 발명의 동력사용 다이어그램1 is a front cross-sectional view of a hydraulic system integrated driving device to which the present invention is applied
2 is a moving state diagram of first and second clutch gears during four-wheel drive according to the present invention;
3 is an operating state diagram of an integrated hydraulic system driving device during four-wheel drive according to the present invention
4 is a moving state diagram of first, second, and third clutch gears during low-speed driving according to the present invention;
5 is an operating state diagram of an integrated hydraulic system driving device during low-speed driving according to the present invention
6 is an installation state diagram of the hydraulic motor protection sensor of the present invention
7 is a power usage diagram of the present invention

본 발명이 해결하고자 하는 과제의 해결수단을 보다 구체적으로 구현하기 위한 바람직한 실시예에 대하여 설명하기로 한다.It will be described with respect to a preferred embodiment for more specifically implementing the solution to the problem to be solved by the present invention.

본 발명의 바람직한 실시예에 따른 유압시스템 통합 구동장치(HS)의 전체적인 구성을 첨부된 도면에 의거 개략적으로 살펴보면, 트랜스퍼 케이스(10), 주축(20), 제1 아이들축(30), 전륜 구동축(40), 제2 아이들축(50), 후륜 구동축(60), 저속주행용 아이들축(70), 저속주행용 유압모터(80)의 구성요소로 대분 됨을 확인할 수 있다.A schematic view of the overall configuration of the hydraulic system integrated drive device (HS) according to a preferred embodiment of the present invention based on the accompanying drawings, the transfer case 10, the main shaft 20, the first idle shaft 30, and the front wheel drive shaft 40, the second idle shaft 50, the rear wheel drive shaft 60, the idle shaft 70 for low-speed driving, and the hydraulic motor 80 for low-speed driving.

이하, 상기 개략적인 구성으로 이루어진 본 발명을 실시 용이하도록 좀더 상세하게 설명하기로 한다.Hereinafter, the present invention consisting of the above schematic configuration will be described in more detail to facilitate implementation.

우선적으로 본 발명은 특장차량의 엔진(1)에는 후방에 변속기(2)가 연결 설치되고, 변속기(2)는 엔진(1)에서 발생하는 동력을 속도에 따라 필요한 회전력으로 바꾸어 전달하는 기능을 수행한다.First of all, according to the present invention, a transmission 2 is connected to and installed at the rear of the engine 1 of a special vehicle, and the transmission 2 performs a function of converting power generated in the engine 1 into required rotational force according to speed and transmitting the transmission. do.

상기 변속기(2)의 후방에 설치되는 트랜스퍼 케이스(10)는 상기 변속기와 인풋 샤프트를 매개로 연결됨으로써 인풋 샤프트를 통해 변속된 회전동력이 내부로 입력되고, 인풋 샤프트를 통해 내부로 입력된 동력을 분배하여 전륜 구동을 위한 프론트 아웃풋 샤프트 및 후륜 구동을 위한 리어 아웃풋 샤프트로 각각 전달함으로써 특장차량은 4륜 구동으로 주행할 수 있게 된다.The transfer case 10 installed at the rear of the transmission 2 is connected to the transmission through an input shaft, so that the rotational power shifted through the input shaft is input to the inside, and the power input to the inside through the input shaft is By distributing and transmitting to the front output shaft for front-wheel drive and the rear output shaft for rear-wheel drive, the special vehicle can run with 4-wheel drive.

이와 같은 트랜스퍼 케이스(10) 및 내부에 설치되는 동력분배장치 등을 포함하는 본 발명의 유압시스템 통합 구동장치(HS)는, 상기 트랜스퍼 케이스(10)의 내부 상측에 주축(20)이 회전 가능하게 설치되고, 주축(20)은 상기 인풋 샤프트와 연결됨으로써 동력을 입력받으며, 일측에는 좌우로 이동하면서 선택적으로 주축(20)의 회전동력을 단속하는 제1 클러치기어(21)가 설치된다.In the hydraulic system integrated driving device (HS) of the present invention including the transfer case 10 and the power distribution device installed therein, the main shaft 20 is rotatable on the inner upper side of the transfer case 10. The main shaft 20 receives power by being connected to the input shaft, and a first clutch gear 21 is installed on one side to selectively regulate the rotational power of the main shaft 20 while moving left and right.

상기 주축(20)의 하부에는 제1 아이들축(30)이 회전 가능하게 설치되고, 제1 아이들축(30)에는 상기 제1 클러치기어(21)와 선택적으로 접속되는 제1 아이들기어(31) 및 제2 아이들기어(32)가 서로 간격을 두고 설치되며, 이와 같은 제1 아이들축(30)은 전륜 구동축(40)에 회전동력을 전달하는 중간 매개체의 역할을 한다.A first idle shaft 30 is rotatably installed below the main shaft 20, and a first idle gear 31 selectively connected to the first clutch gear 21 is connected to the first idle shaft 30. and second idle gears 32 are installed at intervals from each other, and the first idle shaft 30 serves as an intermediate medium for transmitting rotational power to the front wheel driving shaft 40 .

상기 주축(20)의 하부에는 전륜 구동축(40)이 회전 가능하게 설치되고, 전륜 구동축(40)에는 제2 아이들기어(32)와 치합되는 전륜 구동기어(41) 및 좌우로 이동 가능한 제2 클러치기어(42)가 서로 간격을 두고 설치되며, 제2 클러치기어(42)는 선택적으로 전륜 구동축(40)의 회전동력을 단속하거나 본 발명의 핵심기술인 저속주행시 저속주행용 유압모터(80)의 회전동력이 전륜 구동축(40)으로 전달됨을 차단하는 기능을 수행하는 한편, 상기 전륜 구동축(40)은 전륜 구동을 위한 프론트 아웃풋 샤프트로 회전동력을 전달한다.A front wheel drive shaft 40 is rotatably installed below the main shaft 20, and a front wheel drive gear 41 meshed with a second idle gear 32 and a second clutch movable left and right on the front wheel drive shaft 40. The gears 42 are installed at intervals from each other, and the second clutch gear 42 selectively regulates the rotational power of the front wheel drive shaft 40 or rotates the hydraulic motor 80 for low-speed driving, which is a key technology of the present invention, during low-speed driving. While performing a function of blocking transmission of power to the front wheel drive shaft 40, the front wheel drive shaft 40 transmits rotational power to the front output shaft for driving the front wheels.

그리고 상기 전륜 구동축(40)의 반대편 상측에는 제2 아이들축(50)이 회전 가능하게 설치되고, 제2 아이들축(50)에는 제2 클러치기어(42)와 선택적으로 접속되는 제3 아이들기어(51)가 설치된다.In addition, a second idle shaft 50 is rotatably installed on the upper side opposite to the front wheel drive shaft 40, and a third idle gear selectively connected to the second clutch gear 42 is connected to the second idle shaft 50 ( 51) is installed.

또한, 상기 제2 아이들축(50)의 상부에는 후륜 구동축(60)이 회전 가능하게 설치되는 것으로, 이와 같은 후륜 구동축(60)에는 상기 제3 아이들기어(51)와 치합되는 제1 후륜기어(61) 및 제2 후륜기어(62)가 서로 간격을 두고 설치되며, 상기 후륜 구동축(60)은 후륜 구동을 위한 리어 아웃풋 샤프트로 회전동력을 전달한다.In addition, a rear wheel drive shaft 60 is rotatably installed above the second idle shaft 50, and the rear wheel drive shaft 60 has a first rear wheel gear meshed with the third idle gear 51 ( 61) and the second rear wheel gear 62 are installed at a distance from each other, and the rear wheel driving shaft 60 transmits rotational power to the rear output shaft for driving the rear wheels.

상기 후륜 구동축(60)의 상부에는 저속주행용 아이들축(70)이 회전 가능하게 설치되고, 저속주행용 아이들축(70)에는 제2 후륜기어(62)와 치합되는 저속주행용 아이들기어(71)가 설치되며, 이와 같은 저속주행용 아이들축(70)은 저속주행용 유압모터(80)의 회전동력을 후륜 구동축(60)에 전달하는 중간 매개체의 역할을 한다.An idle shaft 70 for low-speed driving is rotatably installed above the rear wheel drive shaft 60, and an idle gear 71 for low-speed driving meshed with a second rear wheel gear 62 on the idle shaft 70 for low-speed driving. ) is installed, and the idle shaft 70 for low-speed driving serves as an intermediate medium for transmitting the rotational power of the hydraulic motor 80 for low-speed driving to the rear wheel drive shaft 60.

상기 저속주행용 아이들축(70)의 상부에는 트랜스퍼 케이스(10)의 외면에 저속주행용 유압모터(80)가 일체로 부착되고, 트랜스퍼 케이스(10)의 내부로 인입된 저속주행용 유압모터(80)의 모터축(81)에는 상기 저속주행용 아이들기어(71)와 선택적으로 치합되는 저속주행용 클러치기어(82)가 좌우로 이동 가능하게 설치되며, 저속주행용 클러치기어(82)는 저속주행용 유압모터(80)의 회전동력을 단속하는 역할을 수행한다.The hydraulic motor 80 for low-speed travel is integrally attached to the outer surface of the transfer case 10 on the upper part of the idle shaft 70 for low-speed travel, and the hydraulic motor for low-speed travel drawn into the inside of the transfer case 10 ( 80), a clutch gear 82 for low-speed driving selectively engaged with the idle gear 71 for low-speed driving is installed to be movable left and right, and the clutch gear 82 for low-speed driving is low-speed It serves to regulate the rotational power of the hydraulic motor 80 for traveling.

이러한 구성으로 이루어진 본 발명에 따른 4륜구동의 선택시 작동관계에 대해 살펴보면, 도 1과 같은 초기상태에서 4륜구동을 선택하면 도 2 내지 도 3과 같이 상기 제1 클러치기어(21)가 이동하면서 제1 아이들기어(31)와 접속되고, 상기 제2 클러치기어(42)가 이동하면서 제3 아이들기어(51)와 접속되며, 상기 저속주행용 클러치기어(82)는 저속주행용 아이들기어(71)와 단절된 상태를 유지한다.Looking at the operation relationship when the four-wheel drive is selected according to the present invention having such a configuration, when the four-wheel drive is selected in the initial state as shown in FIG. 1, the first clutch gear 21 moves as shown in FIGS. 1 is connected to the idle gear 31, the second clutch gear 42 is connected to the third idle gear 51 while moving, and the clutch gear 82 for low-speed travel is idle gear 71 for low-speed travel remain disconnected from

따라서 주축(20)의 회전동력은 기어조합을 통해 제1 아이들축(30), 전륜 구동축(40), 제2 아이들축(50), 후륜 구동축(60)으로 순차적으로 전달됨으로써 전륜 구동축(40) 및 후륜 구동축(60)이 함께 회전하면서 4륜구동이 이루어질 수 있게 된다.Therefore, the rotational power of the main shaft 20 is sequentially transmitted to the first idle shaft 30, the front wheel drive shaft 40, the second idle shaft 50, and the rear wheel drive shaft 60 through a gear combination, so that the front wheel drive shaft 40 And while the rear wheel drive shaft 60 rotates together, four-wheel drive can be achieved.

또한, 2륜구동의 선택시 작동관계에 대해 살펴보면, 도 1과 같은 초기상태에서 2륜구동을 선택하면 상기 제1 클러치기어(21)가 이동하면서 제2 아이들기어(32)와 접속되고, 상기 제2 클러치기어(42)가 반대로 이동하면서 제3 아이들기어(51)와는 단절되며, 상기 저속주행용 클러치기어(82)는 저속주행용 아이들기어(71)와 단절된 상태를 유지한다.In addition, looking at the operation relationship when the two-wheel drive is selected, when the two-wheel drive is selected in the initial state as shown in FIG. 1, the first clutch gear 21 moves and is connected to the second idle gear 32, and the second While the clutch gear 42 moves in the opposite direction, it is disconnected from the third idle gear 51, and the low-speed clutch gear 82 maintains a state of being disconnected from the low-speed idle gear 71.

따라서 주축(20)의 회전동력은 기어조합을 통해 제1 아이들축(30), 전륜 구동축(40)으로만 순차적으로 전달됨으로써 전륜 구동축(40)이 단독으로 회전하면서 2륜구동이 이루어질 수 있게 된다.Therefore, the rotational power of the main shaft 20 is sequentially transmitted only to the first idle shaft 30 and the front wheel drive shaft 40 through a gear combination, so that the front wheel drive shaft 40 rotates alone and the two-wheel drive can be achieved.

또한, 본 발명의 핵심기술인 저속주행의 선택시 작동관계에 대해 살펴보면, 도 1과 같은 초기상태에서 저속주행을 선택하면 도 4 내지 도 5와 같이 상기 제1 클러치기어(21)는 반대로 이동하면서 제1 아이들기어(31)와 단절되고, 상기 제2 클러치기어(42)는 반대로 이동하면서 제3 아이들기어(51)와 단절되며, 상기 저속주행용 클러치기어(82)는 이동하면서 저속주행용 아이들기어(71)와 접속된 상태를 유지한다.In addition, looking at the operation relationship when low-speed driving, which is the core technology of the present invention, is selected in the initial state as shown in FIG. 1, the first clutch gear 21 moves in the opposite direction as shown in FIGS. 1 is disconnected from the idle gear 31, the second clutch gear 42 moves in the opposite direction and is disconnected from the third idle gear 51, and the low-speed clutch gear 82 is moved while moving the idle gear for low-speed driving It remains connected to (71).

따라서 저속주행용 유압모터(80)의 회전동력은 기어조합을 통해 저속주행용 아이들축(70), 후륜 구동축(60)으로만 순차적으로 전달됨으로써 후륜 구동축(60)이 단독으로 회전하면서 저속주행이 원활하게 이루어지며, 특히 이러한 과정에서 저속주행용 유압모터(80)의 회전동력은 전륜 구동축(40)으로 전달됨을 차단하고, 이로 인해 전륜 구동축(40)을 통해 역방향인 엔진(1)으로 동력이 전달됨을 원천적으로 차단함으로써 엔진(1)이나 동력전달체계에 부하가 걸려 파손됨을 방지하는 효과를 제공한다.Therefore, the rotational power of the hydraulic motor 80 for low-speed travel is sequentially transmitted only to the idle shaft 70 for low-speed travel and the rear wheel drive shaft 60 through a gear combination, so that the rear wheel drive shaft 60 rotates alone and the low-speed travel In particular, in this process, the rotational power of the hydraulic motor 80 for low-speed driving is blocked from being transmitted to the front wheel drive shaft 40, and thus the power is transmitted to the engine 1 in the reverse direction through the front wheel drive shaft 40. Transmission is fundamentally blocked, thereby providing an effect of preventing damage caused by a load to the engine 1 or power transmission system.

이와 같이 저속주행을 선택할 경우 운전석에 장착된 컨트롤 인터페이스를 조작하여 차량의 엔진으로부터 구동력을 전달받아 회전하는 인풋 샤프트와 유압시스템 통합 구동장치(HS)에 구비된 저속주행용 유압모터(80)의 회전동력을 후륜 구동축(60)에 전달하여 효율적인 장비운영을 할 수 있게 된다.In this way, when low-speed driving is selected, the control interface mounted on the driver's seat is operated to rotate the input shaft that receives driving force from the engine of the vehicle and rotates the hydraulic motor 80 for low-speed driving provided in the hydraulic system integrated driving device HS. Power is transmitted to the rear wheel drive shaft 60 to enable efficient equipment operation.

한편, 본 발명에서 개시된 제1 클러치기어(21), 제2 클러치기어(42), 저속주행용 클러치기어(82)가 좌우로 이동하면서 선택적으로 동력을 연결하거나 차단하는 기술에 대해서는 이미 공지된 기술이므로 본 발명에서 더 이상의 상세한 설명은 생략하기로 한다.On the other hand, the technology disclosed in the present invention for selectively connecting or disconnecting power while the first clutch gear 21, the second clutch gear 42, and the low-speed clutch gear 82 move left and right is already known. Therefore, further detailed description will be omitted in the present invention.

이러한 본 발명에 따르면, 각 작업장치의 특성에 따라 작업자가 4륜구동 및 저속주행을 실시간으로 용이하게 선택할 수 있어 동력 사용의 효율성이 높아지고, 운전석에 장착되어 사용 목적에 따라 탑재되는 작업장치별로 운전에 필요한 작업장치의 운전조건에 따른 설정 값을 자동으로 맞추고 유지하며 작업장치를 운행할 수 있는 컨트롤 인터페이스를 구비함으로써 최적의 상태로 작업장치에 대한 운전이 이루어져 성능과 안전성을 향상시키는 동시에 손쉽게 기능을 숙지할 수 있어 차량 운영능력을 향상시키는 효과가 있다.According to the present invention, the operator can easily select 4-wheel drive and low-speed driving in real time according to the characteristics of each work device, thereby increasing the efficiency of power use, and driving each work device mounted on the driver's seat according to the purpose of use. By having a control interface that automatically adjusts and maintains the set values according to the operating conditions of the necessary work tools and operates the work tools, the work tools are operated in an optimal state, improving performance and safety, and at the same time, easily familiarizing themselves with the functions. It has the effect of improving vehicle operating ability.

또한, 본 발명은 4륜구동시 작업자가 실수로 저속주행을 선택하더라도 이를 자동으로 감지하여 저속주행용 유압모터(80)를 안전하게 보호하는 신규의 기술이 추가로 접목된다.In addition, in the present invention, even if an operator accidentally selects low-speed driving during four-wheel drive, a new technology for safely protecting the hydraulic motor 80 for low-speed driving by automatically detecting this is additionally incorporated.

이를 위한 기술구성으로 상기 저속주행용 클러치기어(82)의 상측에는 유압모터 보호센서(90)가 설치되고, 상기 유압모터 보호센서(90)는 4륜구동시 작업자가 실수로 저속주행을 선택할 경우 저속주행용 클러치기어(82)를 감지하다가 저속주행용 클러치기어(82)가 작업자의 잘못된 선택으로 이동하여 미감지상태가 되면 자동으로 경고등을 점등함과 동시에 시스템적으로 차량을 정지시켜 안전사고를 예방하고, 차량파손을 방지하는 특별한 효과를 제공한다.As a technical configuration for this purpose, a hydraulic motor protection sensor 90 is installed on the upper side of the clutch gear 82 for low-speed driving, and the hydraulic motor protection sensor 90 operates at a low speed when an operator accidentally selects low-speed driving during four-wheel drive. While detecting the driving clutch gear 82, if the low-speed driving clutch gear 82 moves due to the operator's incorrect selection and becomes undetected, the warning light is automatically turned on and the vehicle is stopped systematically to prevent safety accidents. and provides a special effect to prevent damage to the vehicle.

여기에서 상기 유압모터 보호센서(90)의 설치구성에 대해 더욱 구체적으로 살펴보면, 유압모터 보호센서(90)는 도 6과 같이 센서홀더(91)를 관통하여 하부로 노출 설치되고, 상기 센서홀더(91)는 저속주행용 클러치기어(82)의 상측에 위치하도록 설치된 방오 하우징(92)의 내부에서 하단부에 부착된 고정너트(93)를 관통하여 나사결합됨으로써 안정성을 유지하며, 상기 방오 하우징(92)은 트랜스퍼 케이스(10)에 부착된 커넥터(94)와 연결된 상태로 저속주행용 클러치기어(82)의 상측에 위치하도록 "┏" 의 형상으로 형성됨과 아울러 유압모터 보호센서(90)를 수납하면서 오일로부터 안전하게 보호하고, 센서전선(95)이 통과할 수 있는 경로를 제공한다.Looking more specifically at the installation configuration of the hydraulic motor protection sensor 90 here, the hydraulic motor protection sensor 90 penetrates the sensor holder 91 as shown in FIG. 91) maintains stability by being screwed through the fixing nut 93 attached to the lower end inside the antifouling housing 92 installed to be located on the upper side of the clutch gear 82 for low speed driving, and the antifouling housing 92 ) is formed in the shape of "┏" so as to be located on the upper side of the clutch gear 82 for low-speed driving in a state connected to the connector 94 attached to the transfer case 10, while accommodating the hydraulic motor protection sensor 90 It is safely protected from oil and provides a path through which the sensor wire 95 can pass.

또한, 본 발명에 따른 동력사용상태에 대해 설명하면 도 7의 다이어그램과 같이 엔진(1)으로부터 PTO(3)를 이용하여 동력을 외부로 인출하고, 이러한 인출 동력으로 유압펌프(4)를 가동하며, 유압펌프(4)는 유압밸브(5)를 거쳐 연결된 작업장치를 작동할 수 있으며, 저속주행시에는 컨트롤조작(6)을 통해 유압밸브(5)를 거쳐 유압모터(80)를 작동하여 저속주행을 원활하게 실시할 수 있게 된다.In addition, if the power use state according to the present invention is described, as shown in the diagram of FIG. , The hydraulic pump 4 can operate the work device connected via the hydraulic valve 5, and when traveling at low speed, the hydraulic motor 80 is operated via the hydraulic valve 5 through the control operation 6 to drive at low speed. can be carried out smoothly.

HS: 유압시스템 통합 구동장치 1: 엔진
2: 변속기 3: PTO
4: 유압펌프 5: 유압밸브
6: 컨트롤조작 10: 트랜스퍼 케이스
20: 주축 21: 제1 클러치기어
30: 제1 아이들축 31: 제1 아이들기어
32: 제2 아이들기어 40: 전륜 구동축
41: 전륜 구동기어 42: 제2 클러치기어
50: 제2 아이들축 51: 제3 아이들기어
60: 후륜 구동축 61: 제1 후륜기어
62: 제2 후륜기어 70: 저속주행용 아이들축
71: 저속주행용 아이들기어 80: 저속주행용 유압모터
81: 모터축 82: 저속주행용 클러치기어
90: 유압모터 보호센서 91: 센서홀더
92: 방오 하우징 93: 고정너트
94: 커넥터 95: 센서전선HS: hydraulic system integrated drive 1: engine
2: Transmission 3: PTO
4: hydraulic pump 5: hydraulic valve
6: Control operation 10: Transfer case
20: main shaft 21: first clutch gear
30: first idle axis 31: first idle gear
32: second idle gear 40: front wheel drive shaft
41: front wheel drive gear 42: second clutch gear
50: second idle axis 51: third idle gear
60: rear wheel drive shaft 61: first rear wheel gear
62: second rear wheel gear 70: idle axle for low-speed driving
71: idle gear for low-speed travel 80: hydraulic motor for low-speed travel
81: motor shaft 82: clutch gear for low speed driving
90: hydraulic motor protection sensor 91: sensor holder
92: antifouling housing 93: fixing nut
94: connector 95: sensor wire

Claims (6)

트랜스퍼 케이스(10)의 내부 상측에 회전 가능하게 설치되고, 인풋 샤프트와 연결되어 동력을 입력받으며, 좌우로 이동 가능한 제1 클러치기어(21)가 설치된 주축(20)과;
상기 제1 클러치기어(21)와 선택적으로 접속되는 제1 아이들기어(31) 및 제2 아이들기어(32)가 이격 설치된 제1 아이들축(30)과;
상기 제2 아이들기어(32)와 치합되는 전륜 구동기어(41) 및 좌우로 이동 가능한 제2 클러치기어(42)가 설치된 전륜 구동축(40)과;
상기 제2 클러치기어(42)와 선택적으로 접속되는 제3 아이들기어(51)가 설치된 제2 아이들축(50)과;
상기 제3 아이들기어(51)와 치합되는 제1 후륜기어(61) 및 제2 후륜기어(62)가 이격 설치된 후륜 구동축(60)과;
상기 제2 후륜기어(62)와 치합되는 저속주행용 아이들기어(71)가 설치된 저속주행용 아이들축(70)과;
상기 트랜스퍼 케이스(10)에 부착되고, 트랜스퍼 케이스(10)의 내부로 인입된 모터축(81)에 상기 저속주행용 아이들기어(71)와 선택적으로 접속되는 저속주행용 클러치기어(82)가 좌우로 이동 가능하게 설치되어 저속주행을 하도록 하는 저속주행용 유압모터(80);를 포함하여 구성된 유압시스템 통합 구동장치(HS)를 구비하여 된 것을 특징으로 하는 유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차.
a main shaft 20 rotatably installed inside the upper side of the transfer case 10, connected to the input shaft to receive power, and provided with a first clutch gear 21 capable of moving left and right;
a first idle shaft 30 in which a first idle gear 31 and a second idle gear 32 selectively connected to the first clutch gear 21 are spaced apart from each other;
a front wheel drive shaft 40 having a front wheel drive gear 41 engaged with the second idle gear 32 and a second clutch gear 42 movable left and right;
a second idle shaft 50 provided with a third idle gear 51 selectively connected to the second clutch gear 42;
a rear wheel drive shaft 60 in which the first rear wheel gear 61 and the second rear wheel gear 62 are spaced apart from each other and meshed with the third idle gear 51;
an idle shaft 70 for low-speed driving, on which an idle gear 71 for low-speed driving meshed with the second rear wheel gear 62 is installed;
Attached to the transfer case 10, the clutch gear 82 for low-speed travel selectively connected to the idle gear 71 for low-speed travel on the left and right sides of the motor shaft 81 drawn into the transfer case 10 A hydraulic motor for low-speed driving (80) installed movably to allow low-speed driving; multi-purpose road with hydraulic system integrated driving technology applied, characterized in that it is provided with a hydraulic system integrated driving device (HS) configured to include management car.
 제 1항에 있어서,
4륜구동 선택시 상기 제1 클러치기어(21)는 제1 아이들기어(31)와 접속되고, 상기 제2 클러치기어(42)는 제3 아이들기어(51)와 접속되며, 상기 저속주행용 클러치기어(82)는 저속주행용 아이들기어(71)와 단절되면서 주축(20)의 회전동력을 기어조합을 통해 전달받는 전륜 구동축(40) 및 후륜 구동축(60)이 함께 회전하면서 4륜구동이 이루어지도록 하는 것을 특징으로 하는 유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차.
According to claim 1,
When four-wheel drive is selected, the first clutch gear 21 is connected to the first idle gear 31, the second clutch gear 42 is connected to the third idle gear 51, and the low-speed clutch gear (82) is disconnected from the idle gear 71 for low-speed driving so that the front wheel drive shaft 40 and the rear wheel drive shaft 60, which receive the rotational power of the main shaft 20 through a gear combination, rotate together to achieve four-wheel drive A multi-purpose road management vehicle with integrated hydraulic system driving technology.
 제 1항에 있어서,
2륜구동 선택시 상기 제1 클러치기어(21)는 제1 아이들기어(31)와 접속되고, 상기 제2 클러치기어(42)는 제3 아이들기어(51)와 단절되며, 상기 저속주행용 클러치기어(82)는 저속주행용 아이들기어(71)와 단절되면서 주축(20)의 회전동력을 기어조합을 통해 전달받는 전륜 구동축(40)이 회전하면서 2륜구동이 이루어지도록 하는 것을 특징으로 하는 유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차.
According to claim 1,
When two-wheel drive is selected, the first clutch gear 21 is connected to the first idle gear 31, the second clutch gear 42 is disconnected from the third idle gear 51, and the low-speed clutch gear (82) is a hydraulic system integration characterized in that the two-wheel drive is achieved while the front wheel drive shaft 40, which is disconnected from the idle gear 71 for low-speed driving and receives the rotational power of the main shaft 20 through a gear combination, rotates A multi-purpose road management vehicle with driving technology.
 제 1항에 있어서,
저속주행의 선택시 상기 제1 클러치기어(21)는 제2 아이들기어(32)와 단절되고, 상기 제2 클러치기어(42)는 제3 아이들기어(51)와 단절되며, 상기 저속주행용 클러치기어(82)는 저속주행용 아이들기어(71)와 접속되면서 저속주행용 유압모터(80)의 회전동력을 기어조합을 통해 전달받는 후륜 구동축(60)만 회전하면서 저속주행이 이루어짐과 아울러 저속주행용 유압모터(80)의 회전동력이 전륜 구동축(40)을 통해 역방향인 엔진으로 전달됨을 차단하는 것을 특징으로 하는 유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차.
According to claim 1,
When low-speed driving is selected, the first clutch gear 21 is disconnected from the second idle gear 32, the second clutch gear 42 is disconnected from the third idle gear 51, and the low-speed driving clutch The gear 82 is connected to the idle gear 71 for low-speed driving, and low-speed driving is achieved while only the rear wheel drive shaft 60, which receives the rotational power of the hydraulic motor 80 for low-speed driving through a gear combination, rotates. A multi-purpose road management vehicle with integrated hydraulic system driving technology, characterized in that it blocks transmission of the rotational power of the hydraulic motor (80) to the reverse engine through the front wheel drive shaft (40).
 제 1항에 있어서,
상기 저속주행용 클러치기어(82)의 상측에는 유압모터 보호센서(90)가 설치되고, 상기 유압모터 보호센서(90)는 4륜구동시 작업자가 실수로 저속주행을 선택할 경우 저속주행용 클러치기어(82)를 감지하다가 저속주행용 클러치기어(82)가 이동하여 미감지상태가 되면 자동으로 경고등을 점등함과 동시에 시스템적으로 차량을 정지시키는 것을 특징으로 하는 유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차.
According to claim 1,
A hydraulic motor protection sensor 90 is installed on the upper side of the low-speed driving clutch gear 82, and the hydraulic motor protection sensor 90 is a low-speed driving clutch gear when an operator accidentally selects low-speed driving during four-wheel drive ( 82), and when the low-speed clutch gear 82 moves and becomes undetected, a warning light is automatically turned on and the vehicle is systematically stopped. Multi-purpose road with hydraulic system integrated driving technology applied management car.
 제 5항에 있어서,
상기 유압모터 보호센서(90)는 센서홀더(91)를 관통하여 하부로 노출 설치되고, 상기 센서홀더(91)는 트랜스퍼 케이스(10)에 부착된 커넥터(94)와 연결된 상태로 저속주행용 클러치기어(82)의 상측에 위치하도록 설치된 방오 하우징(92)의 내부에서 하단부를 관통하여 나사결합 설치된 것을 특징으로 하는 유압시스템 통합 구동방식 기술이 적용된 다목적 도로관리차.According to claim 5,
The hydraulic motor protection sensor 90 penetrates the sensor holder 91 and is installed exposed at the bottom, and the sensor holder 91 is connected to the connector 94 attached to the transfer case 10 and is connected to the clutch for low-speed driving. A multi-purpose road management vehicle to which hydraulic system integrated drive technology is applied, characterized in that the anti-fouling housing 92 installed to be located on the upper side of the gear 82 is screwed through the lower part from the inside of the antifouling housing 92.
KR1020230016321A 2023-02-07 2023-02-07 Multipurpose Road Management Vehicle with Hydraulic System integration Drive System Technology KR102513217B1 (en)

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