KR102322221B1 - engine combined use electric excavator - Google Patents

engine combined use electric excavator Download PDF

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KR102322221B1
KR102322221B1 KR1020210054107A KR20210054107A KR102322221B1 KR 102322221 B1 KR102322221 B1 KR 102322221B1 KR 1020210054107 A KR1020210054107 A KR 1020210054107A KR 20210054107 A KR20210054107 A KR 20210054107A KR 102322221 B1 KR102322221 B1 KR 102322221B1
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South Korea
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cable
electric motor
excavator
unit
engine
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KR1020210054107A
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Korean (ko)
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오현규
오우현
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오현규
오우현
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • 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
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • 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
    • B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • 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
    • B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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
    • B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • B60K2370/178—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/40—Special vehicles
    • B60Y2200/41—Construction vehicles, e.g. graders, excavators
    • B60Y2200/412—Excavators
    • 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
    • B60Y2200/91—Electric vehicles
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/905—Combustion engine
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S903/00—Hybrid electric vehicles, HEVS
    • Y10S903/902—Prime movers comprising electrical and internal combustion motors
    • Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
    • Y10S903/904—Component specially adapted for hev
    • Y10S903/906—Motor or generator

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

The present invention relates to an electric excavator also used as an engine, which is able to a diesel engine and an electric motor mounted, and allow a worker to work by operating the diesel engine for long distances and operating the electric motor in a workshop, comprising: an operation mode conversion unit which makes the operation conducted by converting between the electric motor and the diesel engine; a cable whose one end is connected to a power supply unit and whose other end is connected to the electric motor; a reel on which the cable is wound, and which releases the cable when the excavator moves away from the power supply unit and which automatically winds the cable when the excavator moves closer to the power supply unit; a detection unit including a distance detection unit for detecting the moving distance of the cable; a control unit which receives a signal of the distance detection unit, calculates a residual length of the cable moving along with the excavator as well as the pre-saved total length of the cable, and warns if the residual length is shorter than a preset reference residual length; and a vision display unit which displays the residual length calculated by the control unit, and outputs a warning message when the residual length is shorter than the preset reference residual length.

Description

엔진겸용 전기굴삭기{engine combined use electric excavator}Electric excavator combined with engine

본 발명은 엔진겸용 전기굴삭기에 관한 것으로, 전기모터와 엔진을 각각 구비하고, 주행 중에는 엔진을 사용하며 작업 중에는 전기모터를 가동시켜 작업을 할 수 있도록 하는 엔진겸용 전기굴삭기에 관한 것이다. The present invention relates to a combined-engine electric excavator, which has an electric motor and an engine, respectively, uses the engine while driving, and operates the electric motor during operation to perform work.

더 상세하게는 엔진이 장착된 굴삭기에 전기모터를 더 설치하고, 이 전기모터에 케이블을 연결하여 전원을 공급하되, 작업자는 모드전환부를 이용하여 선택적으로 엔진과 전기모터를 가동시키며, 전기모터에 전원을 공급하는 케이블의 연결 상태 및 이동 거리 등을 작업자가 알 수 있도록 함으로써, 작업이 용이하고 나아가 안전한 엔진겸용 전기굴삭기에 관한 것이다.In more detail, an electric motor is further installed in the excavator equipped with an engine, and power is supplied by connecting a cable to the electric motor, but the operator selectively operates the engine and the electric motor using the mode conversion unit, and It relates to an electric excavator combined with an engine that is easy to work and furthermore is safe by allowing a worker to know the connection state of a power supplying cable and the moving distance.

일반적으로, 굴삭기는 토사와 암석의 상태, 작업 종류 및 용도에 따라 적절한 작업 장치를 장착하고, 토목, 건축 등 여러 건설 현장에서 땅을 파거나 물건을 쌓는 적재 작업, 건축물을 해체, 패쇄 작업, 지면을 정리하는 정리 작업 등 다양한 일을 할 수 있는 건설기계이다.In general, an excavator is equipped with an appropriate work device according to the condition of soil and rock, work type and purpose, and digging or stacking work at various construction sites such as civil engineering and construction, dismantling of buildings, cladding work, ground It is a construction machine that can do a variety of tasks, such as tidying up and tidying up.

이러한 굴삭기는 휠 타입과, 크롤러 타입으로 구성되고, 주행을 위한 엔진 또는 메인펌프가 장착되며, 작업을 위해 붐실린더와 암실린더, 버킷실린더 등도 구성되어 있다.Such an excavator is composed of a wheel type and a crawler type, and an engine or a main pump for driving is mounted, and a boom cylinder, an arm cylinder, a bucket cylinder, etc. are also configured for work.

최근에는 전기를 이용하는 전기 굴삭기도 있다.Recently, there are also electric excavators that use electricity.

이러한 전기 굴삭기는 배터리와, 전기모터가 구비되는 방식과, 별도의 전원공급장치를 설치하고 이 전원공급장치와 굴삭기를 연결하여 작업이 이루어지도록 하는 방식이 있다. Such an electric excavator includes a method in which a battery and an electric motor are provided, and a method in which a separate power supply device is installed and the power supply device and the excavator are connected so that the operation is performed.

그런데 배터리를 이용하는 굴삭기는, 배터리의 수명이 짧고, 작업 시간에 비해 충전시간이 상당히 소요되는 문제가 있으며, 전원공급장치와 연결되는 굴삭기는 충전시간은 불필요 하지만, 전원공급장치를 시설하는데 많은 시간과 비용이 소요되는 문제가 있다. However, excavators using batteries have a short battery life and take a considerable amount of charging time compared to the working time. There is a problem with cost.

예를 들어 국내 특허 등록 제10-1031027호는, 본 출원의 발명자에 의해 개발된 것으로 전기 굴삭기에 전원을 공급하고, 길이 조절이 용이한 장치이다. For example, Korean Patent Registration No. 10-1031027, developed by the inventor of the present application, is a device for supplying power to an electric excavator and for easy length adjustment.

이러한 장치는 전력선을 통해 전력을 수신받아 공급하는 전력수신부: 지면으로부터 일정한 높이를 갖게 설치되는 기둥과 상기 기둥 상부에 설치되어 상하 방향 일정하게 회전하되 길이 방향 삽탈되며 길이를 조절하는 다수개의 붐과 상기 붐의 삽탈 간격에 맞추어 승강하며 무게 중심을 조정하는 무게 중심부재와 상기 붐에 설치되어 전력선을 안내하는 다수개의 전력선 안내부재를 포함하는 전력공급부: 로 이루어지며, Such a device is a power receiving unit that receives and supplies power through a power line: a pillar installed to have a certain height from the ground and a plurality of booms installed on the pillar and constantly rotated in the vertical direction, but are inserted and removed in the longitudinal direction and adjust the length, and the above A power supply unit comprising: a weight center member for adjusting the center of gravity while ascending and descending according to the insertion and removal interval of the boom; and a plurality of power line guide members installed on the boom to guide the power line;

상기 무개 중심부재는 기둥을 따라 배치된 중량물 안내레일과, 상기 중량물 안내레일을 따라 승강하는 중량물과 상기 붐 단부와 중량물을 연결하는 중량물 와이어와 중량물 와이어를 안내하는 지지 롤러로 이루어지며, 상기 붐은 빈 내부에는 붐의 인출 길이를 확인할 수 있는 인출감지센서가 구비한 각 형태로 형성하고, 다수개의 붐이 서로 삽입 결합될 수 있도록 표면이 매끄럽게 처리되어 있고 마찰력을 줄이기 위해 윤활재를 도포하여 길이 방향으로 삽탈되면서 길이를 조절하도록 함으로써 전력수신부가 전력공급부로부터 멀어지거나 가까워지는 상태에 따라 길이를 조절하며 전력선을 통해 전력수신부로 전력을 공급하도록 하는 구성으로 이루어져 있다. The open center material comprises a heavy guide rail disposed along a pillar, a heavy object elevating along the heavy guide rail, a heavy wire connecting the boom end and the heavy object, and a support roller for guiding the heavy wire, the boom is Inside the bin, it is formed in each shape with a withdrawal detection sensor that can check the length of the boom, and the surface is smooth so that a plurality of booms can be inserted and coupled to each other. By adjusting the length while being inserted or removed, the length is adjusted according to the state in which the power receiver moves away from or closer to the power supply, and power is supplied to the power receiver through the power line.

그러나, 이러한 장치는, 굴삭기에 상기 전력수신부를 설치하고, 작업장에 기둥을 시공하며, 이 기둥에 붐을 설치하는 등 구성 및 시설 과정이 복잡하고, 이들을 시공하고 유지 보수에도 상당한 비용과 시간이 소요되는 문제가 있다. However, these devices have complicated configuration and facility processes such as installing the power receiver in the excavator, constructing a pole in the workshop, and installing a boom on the pole, and it takes considerable cost and time to construct and maintain them. there is a problem that

더구나, 이러한 전기 굴삭기는 이동 거리가 전원공급장치의 케이블 길이까지만 가능하고 작업장을 벗어나면 운전 및 작업이 불가능한 문제도 있다.Moreover, such an electric excavator has a problem in that the moving distance is only possible up to the cable length of the power supply, and operation and operation are impossible outside the workplace.

본 발명은 이와 같은 종래의 문제점을 감안하여 이루어진 것으로, 그 목적은 엔진을 장착한 굴삭기에 전기모터를 더 설치하여, 필요에 따라 전기모터와 엔진이 선택될 수 있도록 하고, 작업장 내의 작업은 물론 작업장을 벗어나는 원거리 이동도 가능하도록 하며, 전기가 사용됨으로써, 비용을 절감하고, 환경 오염을 최소화할 수 있는 엔진겸용 전기굴삭기를 제공하는데 있다. The present invention has been made in view of such conventional problems, and its object is to further install an electric motor in an excavator equipped with an engine, so that the electric motor and the engine can be selected as necessary, and work in the workshop as well as the workshop It is to provide an electric excavator combined with an engine that enables long-distance movement out of the city and uses electricity, thereby reducing costs and minimizing environmental pollution.

본 발명의 다른 목적은 전원공급부와 전기모터를 연결하여 전기를 공급하는 케이블을 구비하되, 이 케이블은 굴삭기의 이동에 따라 릴에 감아지거나 풀어지며, 작업자는 화면으로 표시되는 케이블의 연결 상태, 이동 길이 등을 확인하며 작업을 편리하게 할 수 있는 엔진겸용 전기굴삭기를 제공하는데 있다. Another object of the present invention is to provide a cable for supplying electricity by connecting a power supply unit and an electric motor, wherein the cable is wound or unwound on a reel according to the movement of the excavator, and the operator can connect the cable displayed on the screen, move The purpose is to provide an electric excavator combined with an engine that can check the length and work conveniently.

본 발명은 디젤엔진과 전기모터를 장착하고, 원거리 주행은 디젤엔진을 동작시키고, 작업장에서는 전기모터를 가동시키며 작업을 할 수 있도록 하는 전기굴삭기로써, The present invention is an electric excavator that is equipped with a diesel engine and an electric motor, operates the diesel engine for long-distance driving, and operates the electric motor in the workplace to work,

전기모터에서 디젤엔진, 디젤엔진에서 전기모터로 전환시켜 동작이 이루어지록 하는 동작모드 전환부; 일단은 전원공급부와 연결되고 타단은 상기 전기모터와 연결되는 케이블; 상기 케이블이 감아지며, 굴삭기가 전원공급부에서 멀어지면 케이블이 풀리고, 가까워지면 자동으로 케이블 감는 릴; 케이블의 이동 거리를 검출하는 거리검출부를 포함하는 감지부; 상기 거리 검출부의 신호를 수신하고, 기 입력된 케이블의 전체 길이와 굴삭기의 이동과 함께 이동하는 케이블의 잔여 길이를 산출하고, 잔여길이가 기설정된 기준 잔여길이보다 짧으면 이를 경고하는 제어부;an operation mode conversion unit for converting an electric motor to a diesel engine and from a diesel engine to an electric motor to perform an operation; a cable having one end connected to the power supply and the other end connected to the electric motor; The cable is wound, and when the excavator is away from the power supply, the cable is released, and when the cable is close, the cable is automatically wound reel; a sensing unit including a distance detecting unit for detecting a movement distance of the cable; a control unit that receives the signal of the distance detector, calculates the total length of the previously input cable and the remaining length of the cable that moves with the movement of the excavator, and warns the remaining length if the remaining length is shorter than a preset reference remaining length;

상기 제어부에서 산출된 잔여 길이를 표시하고, 릴에 잔여하는 잔여 길이가 기설정된 기준 잔여길이보다 짧으면 경고 메세지를 출력하는 시각표시부;로 구성된 기술적인 특징을 갖는 것으로 달성된다. It is achieved with a technical feature consisting of; a time display unit for displaying the remaining length calculated by the control unit and outputting a warning message when the remaining length remaining on the reel is shorter than a preset reference remaining length.

본 발명은, 디젤 엔진과 전기모터를 선택적으로 동작시켜 작업 환경에 따라 굴삭기를 운전하며 작업을 할 수 있도록 함으로써 편리하고 에너지를 절감하며, 디젤엔진과 전기모터가 함께 동작하는 일이 없도록 함으로써 기계적인 고장 및 사고의 위험을 방지하고, 나아가 전기모터에 연결되는 케이블의 잔여길이 표시하여 안전 사고의 위험이 없도록 하는 발명이다. The present invention is convenient and energy-saving by selectively operating a diesel engine and an electric motor to operate an excavator according to the working environment, and to prevent the diesel engine and the electric motor from operating together, thereby providing a mechanical It is an invention that prevents the risk of failure and accidents, and furthermore, displays the remaining length of the cable connected to the electric motor so that there is no risk of a safety accident.

도 1은 본 발명이 적용된 전기굴삭기의 일예를 나타낸 일측면도,
도 2는 본 발명을 설명하기 위한 구성을 보인 블록도,
도 3은 본 발명의 다른 실시 예를 나타낸 블록도,
도 4는 본 발명의 또 다른 실시 예를 나타낸 블록도,
도 5는 본 발명이 적용된 전기굴삭기의 다른 실시 예를 나타낸 일측면도,
도 6은 본 발명의 요부를 확대한 일측면도.1 is a side view showing an example of an electric excavator to which the present invention is applied;
2 is a block diagram showing a configuration for explaining the present invention;
3 is a block diagram showing another embodiment of the present invention;
4 is a block diagram showing another embodiment of the present invention;
5 is a side view showing another embodiment of an electric excavator to which the present invention is applied;
6 is an enlarged side view of the main part of the present invention.

본 발명의 기술성 사상을 그 기술적 사상에 따른 구체적인 구성과 실시예를 들어 상세히 설명하면 다음과 같다.The technical idea of the present invention will be described in detail with reference to specific configurations and examples according to the technical idea.

본 발명을 실시 예를 들어 설명함에 있어서, 동일, 또는 유사한 구성 및 기능을 갖는 구성요소에 대해서는 동일 또는 유사한 명칭 및 부호를 사용하며, 중복되거나 발명의 의미를 한정적으로 해석되게 할 수 있는 부가적인 설명은 본 발명의 실시 예들을 설명함에 있어서 생략될 수 있다.In describing the present invention by way of example, the same or similar names and symbols are used for components having the same or similar configurations and functions, and additional explanations that may overlap or limit the meaning of the invention may be omitted in describing the embodiments of the present invention.

구체적인 설명에 앞서, 본 명세서상에 비록 단수적 표현으로 기재되어 있을지라도 국어 사용에 있어서 단수/복수를 명확하게 구분 짓지 않고 사용되는 환경과 당해 분야에서의 통상적인 용어 사용 환경에 비추어, 발명의 개념에 반하지 않고 해석상 모순되거나 명백하게 다르게 뜻하지 않는 이상 복수의 표현을 포함하는 의미로 사용된다. 또한, 본 명세서에 기재되었거나 기재될 수 있는 '포함한다', '갖는다', '구비한다', '포함하여 이루어진다' 등은 하나 또는 그 이상의 다른 특징이나 구성요소 또는 그들 조합의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다Prior to the detailed description, in light of the environment in which the singular/plural are used without clearly distinguishing the singular/plural in the use of the Korean language, even though it is described as a singular expression in the present specification, and the environment in which the term is commonly used in the art, the concept of the invention It is used in the meaning including plural expressions unless contrary to the contrary, contradictory in interpretation, or clearly different in meaning. In addition, the terms 'comprises', 'have', 'comprises', 'comprises', etc., which have been or may be described herein, indicate the presence or possibility of adding one or more other features or components or combinations thereof. It should be understood as not precluding

하나의 관점에서 본 발명의 굴삭기는 경유 즉 디젤 엔진과 전기모터가 각각 장착되어 작업자에 의해 선택될 수 있도록 함으로써, 에너지를 절감하고 작업 비용을 크게 줄일 수 있는 발명이다. In one aspect, the excavator of the present invention is an invention that can save energy and significantly reduce working costs by allowing a diesel engine and an electric motor to be respectively mounted and selected by the operator.

다른 관점에서 본 발명은, 전원공급부와 굴삭기를 연결하는 케이블을 구비하여 전원이 공급되도록 하되, 시각표시부와, 음성출력부를 통해 케이블의 이동 및 잔여 길이 전원 공급 상태를 표시하여 작업이 편리한 발명이다. In another aspect, the present invention includes a power supply and a cable connecting the excavator so that power is supplied, and a time display unit and an audio output unit display the movement of the cable and the remaining length of the power supply state, so that the operation is convenient.

이하 본 발명의 바람직한 실시 예를 첨부된 도면을 바탕으로 설명한다. Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

먼저 본 발명에 첨부된 도 1은 본 발명이 적용된 굴삭기의 일예를 나타낸 일측면도이고, 도 2는 본 발명을 설명하기 위한 구성을 보인 블록도이며, 도 3은 본 발명의 다른 실시 예를 나타낸 블록도를 나타낸 것이다. First, Fig. 1 attached to the present invention is a side view showing an example of an excavator to which the present invention is applied, Fig. 2 is a block diagram showing a configuration for explaining the present invention, and Fig. 3 is a block showing another embodiment of the present invention the diagram is shown.

또한 첨부된 도 4는 본 발명의 또 다른 실시 예를 나타낸 블록도이고, 도 5는 본 발명이 적용된 굴삭기의 다른 실시 예를 나타낸 일측면도를 도시한 것이며, 도 6은 본 발명의 요부를 확대한 일측면도를 도시한 것이다. 4 is a block diagram showing another embodiment of the present invention, FIG. 5 is a side view showing another embodiment of an excavator to which the present invention is applied, and FIG. 6 is an enlarged view of the main part of the present invention One side view is shown.

도면에서 본 발명에 따른 굴삭기(100)는 작업자가 탑승하여 운전 및 작업을 실행하는 운전실(102)과, 무게 중심을 잡아주는 카운터 웨이트(104)와, 붐 실린더, 암실린더 그리고 버킷 실린더가 갖추어지며, 이동을 위한 바퀴(106) 또는 무한괘도가 설치되며, 여기에 본 발명은 2개의 동력 즉 엔진(120)과 전기모터(140)가 장착되는 것이다. In the drawings, the excavator 100 according to the present invention is equipped with a cab 102 in which an operator rides and executes driving and work, a counter weight 104 to hold the center of gravity, a boom cylinder, an arm cylinder, and a bucket cylinder. , wheels 106 or infinite orbits for movement are installed, and the present invention is to which two power sources, that is, the engine 120 and the electric motor 140 are mounted.

상기 엔진은 디젤엔진(120)으로 구성되며 작업장을 벗어나는 원거리를 운전할 때 사용될 수 있도록 하고, 상기 전기모터(140)는 케이블이 연결되어 전기가 공급되고, 작업장 내에서 이 케이블의 길이 만큼 이동하며 작업을 하는 것이다. The engine is composed of a diesel engine 120 so that it can be used when driving a long-distance out of the workshop, and the electric motor 140 is connected to a cable to supply electricity, and moves as much as the length of this cable in the workshop. will do

본 발명에 따른 엔진겸용 전기굴삭기(100)에는 전기모터(140) 및 후술하는 감지부 등에 전원을 공급하는 전원공급부(200)가 설치되고, 작업자에 디젤엔진(120)에서 전기모터(140) 또는 전기모터(140)에서 디젤엔진(120)으로 동작을 전환시키는 동작모드전환부(300)가 설치되는 것이다. A power supply unit 200 for supplying power to an electric motor 140 and a sensing unit to be described later is installed in the electric excavator 100 combined with an engine according to the present invention, and the electric motor 140 or the electric motor 140 from the diesel engine 120 to the operator The operation mode conversion unit 300 for switching the operation from the electric motor 140 to the diesel engine 120 is installed.

또한 본 발명에는 작업장 내에서 굴삭기의 이동 거리를 검출하여 케이블의 잔여 길이를 산출할 수 있도록 하는 감지부(4000를 구성하는 이동거리검출부(420)가 구비되고, 이들을 제어하는 제어부(10)와, 제어부의 신호에 따라 동작모드 전환 상태 이동거리 등을 표시하여 작업자가 알 수 있도록 하는 시각표시부(20)가 갖추어지는 것이다. In addition, the present invention is provided with a movement distance detection unit 420 constituting the sensing unit 4000 that detects the movement distance of the excavator in the workshop to calculate the remaining length of the cable, and a control unit 10 for controlling them; The time display unit 20 is provided so that the operator can know by displaying the operation mode switching state, moving distance, etc. according to the signal of the control unit.

상기 전원공급부(200)는, 케이블(220)과 이 케이블(220)이 감아지는 릴(240)로 구성되며, 상기 케이블(220)은 전기모터(140)에 연결되어 배전반(260) 또는 분전반의 전기를 공급하고, 상기 릴(240)은 중앙의 회전축을 중심으로 회전하며, 굴삭기(100)가 릴(240)에서 멀어지며 케이블을 당길 때는 케이블이 자연스럽게 풀어지도록 하고, 반대로 릴 방향으로 접근하면 케이블을 감아 안전사고가 발생하지 않도록 하는 것이다. The power supply unit 200 includes a cable 220 and a reel 240 on which the cable 220 is wound, and the cable 220 is connected to the electric motor 140 to form a switchboard 260 or a distribution board. Electricity is supplied, and the reel 240 rotates about the central axis of rotation, and when the excavator 100 pulls the cable away from the reel 240, the cable is naturally released. to prevent accidents from occurring.

상기 릴(240)의 회전축에는 자동으로 케이블을 감을 수 있는 릴 모터(60)가 설치되며, 이 릴 모터(60)는 제어부(10)의 신호에 따라 동작하는 것이다. A reel motor 60 capable of automatically winding a cable is installed on the rotating shaft of the reel 240 , and the reel motor 60 operates according to a signal from the control unit 10 .

예를 들어, 굴삭기(100)가 이동하며 케이블(220)을 당기면 릴이 회전하여 케이블이 풀어지고, 굴삭기(100)가 릴 방향으로 이동하여 케이블을 당기고 있는 텐션이 저하되면 감지부(400)가 이를 감지하고, 제어부는 릴 모터를 회전시켜 케이블이 감기도록 하는 것이다. For example, when the excavator 100 moves and pulls the cable 220, the reel rotates to release the cable, and when the excavator 100 moves in the direction of the reel and the tension pulling the cable decreases, the sensing unit 400 is Sensing this, the control unit rotates the reel motor so that the cable is wound.

본 발명의 다른 실시 예로 본 발명은 릴(240) 앞쪽에 케이블의 이동을 안내하는 레일부를 구비하되, 이 레일부(280)의 중앙에 장공(282)이 형성되고, 이 장공을 따라 상하이동하며 케이블이 끼워지는 가이드부(284)가 마련된 구성이다. In another embodiment of the present invention, the present invention is provided with a rail portion for guiding the movement of the cable in front of the reel 240, and a long hole 282 is formed in the center of the rail portion 280, and moves vertically along the long hole. A configuration in which a guide portion 284 through which a cable is fitted is provided.

이러한 구성은 케이블(220)이 당겨지면 장공을 따라 케이블과 가이드부가 올라가고, 케이블(220)의 텐션이 저하되면 장공을 따라 케이블의 무게 의해 하강하는 것으로, 레일부에 감지부(400)를 구성하는 위치감지센서(480) 또는 마이크로스위치를 구비하여 가이드부(284)의 위치를 감지하고, 가이드부가 설정된 위치 아래에 위치하면 제어부가 신호를 수신하여 릴 모터(60)를 회전시켜 케이블을 감도록 하고, 설정된 위치보다 위에 있는 경우에는 케이블이 풀어지도록 릴 모터(60)의 off 상태를 유지키는 것으로 작업 중 케이블의 바닥 끌림을 방지하는 것이다.In this configuration, when the cable 220 is pulled, the cable and the guide part go up along the long hole, and when the tension of the cable 220 is lowered, it descends by the weight of the cable along the long hole, which constitutes the sensing part 400 in the rail part. A position detection sensor 480 or a micro switch is provided to detect the position of the guide unit 284, and when the guide unit is located below the set position, the control unit receives a signal and rotates the reel motor 60 to wind the cable. , to prevent dragging of the bottom of the cable during operation by maintaining the off state of the reel motor 60 so that the cable is released if it is above the set position.

본 발명에 따른 동작모드전환부(300)는 전기모터(140)와 디젤엔진(120)이 동시에 동작하는 것을 방지하기 위한 것으로, 운전실에 설치되는 패널, 휴대용 단말기 또는 리모컨 형태로 구성될 수 있으며, 필요에 따라 휴대폰 등으로도 구성될 수 있다. The operation mode conversion unit 300 according to the present invention is to prevent the electric motor 140 and the diesel engine 120 from operating at the same time, and may be configured in the form of a panel installed in the cab, a portable terminal, or a remote control, If necessary, it may be configured as a mobile phone or the like.

본 발명에 따른 감지부(400)는 상기한 케이블의 위치를 감지하는 위치감지센서(480)를 포함하고, 엔진의 동작 상태를 감지하는 엔진동작검출부(440)와, 전기모터의 동작 상태를 감지하는 모터동작검출부(460)로 구성되며, 여기에 케이블의 잔여 길이를 산출하여 위험 신호를 보낼 수 있도록 하는 이동거리검출부(420)로 구성되는 것이다. The detection unit 400 according to the present invention includes a position detection sensor 480 for detecting the position of the cable, and an engine operation detection unit 440 for detecting the operation state of the engine, and detects the operation state of the electric motor. It is composed of a motor motion detection unit 460, and it is composed of a movement distance detection unit 420 that calculates the remaining length of the cable and sends a danger signal.

상기 이동거리검출부(420)는, 상기 레일부(280)에 설치되어 거리를 측정하는 거리측정센서 또는 상기 릴의 회전축에 설치되어 회전수를 검출하는 회전수 검출부(422)로 구성될 수 있으며, 상기 회전수 검출부(422)는 케이블이 감아지는 회전수와, 반대로 풀어지는 회전수를 검출하고, 제어부가 이를 수신하는 것이다. The moving distance detecting unit 420 may be a distance measuring sensor installed on the rail unit 280 to measure a distance or a rotational speed detecting unit 422 installed on the rotating shaft of the reel to detect the number of revolutions. The rotation speed detection unit 422 detects the number of rotations in which the cable is wound and the number of rotations in which the cable is unwound, and the control unit receives it.

제어부(10)는 회전수 검출부의 회전수를 수신하여 잔여 길이를 산출하고, 잔여길이가 설정된 잔여길이보다 짧으면 이를 시각표시부(20) 또는 음성출력부(40)를 통해 운전자에게 경고하여 케이블이 빠지거나, 단선으로 인한 사고의 위험을 사전에 예방토록 하는 것이다.The control unit 10 receives the number of revolutions of the revolution detection unit and calculates the remaining length, and if the remaining length is shorter than the set remaining length, the control unit 10 warns the driver through the time display unit 20 or the voice output unit 40 to cause the cable to be disconnected. or to prevent the risk of accidents due to disconnection in advance.

아울러 제어부(10)는 릴의 회전수를 산출하여 굴삭기의 이동거리를 실 시간으로 시각 표시부에 출력할 수도 있다. In addition, the control unit 10 may calculate the number of revolutions of the reel and output the moving distance of the excavator to the time display unit in real time.

본 발명의 시각표시부(20)는 터치 스크린, LED 또는 액정 모니터 등 여러 형태로 구성될 수 있으며, 음성출력부(40)와 함께 경고, 이동거리, 디젤엔진 및 전기모터의 동작 유무를 출력하는 것이다. The visual display unit 20 of the present invention may be configured in various forms such as a touch screen, an LED or a liquid crystal monitor, and outputs a warning, a moving distance, and the operation of a diesel engine and an electric motor together with the voice output unit 40 .

한편, 상기 음성출력부(40)는 특정한 소리, 사람의 음성 또는 사이렌과 같은 경고음 등 여러 소리가 녹음되어 출력되는 것이다. Meanwhile, the voice output unit 40 records and outputs various sounds, such as a specific sound, a human voice, or a warning sound such as a siren.

첨부된 도 6은 본 발명의 케이블 꼬임을 방지하기 위한 것으로, 케이블이 접속되는 접속부가 세워지도록 하되, 이 접속부(222)에 베어링 또는 슬립링 등으로 구성되는 꼬임방지부(224)가 갖추어지는 것이다. Attached Figure 6 is to prevent twisting of the cable of the present invention, so that the connection part to which the cable is connected is erected, but the connection part 222 is equipped with a twist prevention part 224 composed of a bearing or a slip ring, etc. .

다음은 본 발명의 동작 과정을 설명한다. The following describes the operation process of the present invention.

작업자는 디젤엔진을 가동시켜 작업장까지 이동하고, 작업장에 도착하면 동작모드변환부(300)를 조작하여 전기모터(140)를 이용하여 작업을 하게 된다. The worker operates the diesel engine to move to the workshop, and when he arrives at the workshop, he operates the operation mode conversion unit 300 to work using the electric motor 140 .

작업자가 디젤엔진에서 전기모터로 동작모드를 전환하면, 제어부(10)는 시각 표시부 및/또는 음성출력부를 통해 디젤엔진(120)의 시동이 OFF 상태인가를 확인하도록 하는 메시지를 출력하고, 엔진동작검출부(440)로 부터 디젤엔진의 동작 상태를 수신하는 것이다. When the operator switches the operation mode from the diesel engine to the electric motor, the control unit 10 outputs a message to check whether the start of the diesel engine 120 is in the OFF state through the time display unit and/or the audio output unit, and the engine operation It is to receive the operating state of the diesel engine from the detection unit (440).

아직 시동이 OFF 상태가 아니라면 시각 표시부(20)와 음성출력부(40)를 통해 시동을 끄도록 하고, 시동이 OFF 상태라면 제어부(10)는 케이블의 연결상태 검출부(402)의 신호를 수신하여 케이블이 연결되어 있는가를 확인한다. If the ignition is not in the OFF state, the engine is turned off through the time display unit 20 and the audio output unit 40, and if the engine is in the OFF state, the control unit 10 receives the signal of the cable connection state detection unit 402 and Check if the cable is connected.

케이블이 연결되지 않은 상태라면 시각표시부(20)와 음성출력부(40)를 통해 케이블을 연결을 출력하는 것이다. 케이블 연결 후 전기 공급이 시작되면, 작업자는 케이블의 길이 이내에서 굴삭기를 운전하며 작업을 하는 것이다. If the cable is not connected, the cable connection is output through the time display unit 20 and the audio output unit 40 . When electricity supply starts after connecting the cable, the operator operates the excavator within the length of the cable.

다른 한편으로, 작업자가 디젤엔진의 시동을 끄지 않은 상태에서 케이블을 연결한 경우이다. 이때 제어부(10)는 엔ㅈ니동작검출부(440)에서 수신된 신호를 수신하고, 전기가 공급되도록 않도록 전기 공급을 차단하는 것이다. On the other hand, this is a case where the operator connects the cable without turning off the diesel engine. At this time, the control unit 10 receives the signal received from the engine motion detection unit 440, and blocks the electricity supply so that electricity is not supplied.

아울러 제어부(10)는, 시각표시부와 음성출력부에 음성 또는 경고음을 통해 엔진이 동작하고 있다는 메시지를 전달하는 것이다. In addition, the control unit 10 transmits a message indicating that the engine is operating through a voice or a warning sound to the time display unit and the audio output unit.

전기모터(140)에 전기가 공급되면 작업자는 작업장을 돌아디니며 작업을 하게되며, 회전수 검출부(442)는 감아진 또는 풀어질 때의 회전수를 검출하고, 제어부(10)는 기 입력된 데이터를 바탕으로 감아져 있는 즉 잔혀 길이를 산출하고, 이를 시각표시부(20)에 표시하는 것이다. When electricity is supplied to the electric motor 140, the operator goes around the workshop and works, the rotation speed detection unit 442 detects the rotation speed when it is wound or unwound, and the control unit 10 is pre-inputted. Based on the data, that is, the length of the wound is calculated and displayed on the time display unit 20 .

예컨데 본 발명은 케이블이 감아지는 릴 지름과 감아지는 횟수로 잔여 길이를 산출하는 것이다. For example, in the present invention, the remaining length is calculated from the reel diameter and the number of times the cable is wound.

한편, 본 발명은 릴에 남아 있는 케이블의 최소 길이 설정하고, 이 기준 잔여 길이보다 남아 있는 길이 짧으면, 제어부(10)은 경고 신호를 시각 표시부(20)와 음력 출력부(40)를 통해 출력하는 것이다. On the other hand, the present invention sets the minimum length of the cable remaining on the reel, and if the remaining length is shorter than this reference remaining length, the control unit 10 outputs a warning signal through the time display unit 20 and the lunar output unit 40 will be.

작업을 마친 다음 또는 다른 작업장으로 이동하고자 하는 경우, 작업자는 동작모드변환부를 조작하여 전기모터에서 디젤엔진 운전모드로 전환하면 제어부(10)는 공급되는 전기를 차단한다. After completing the work or when moving to another workplace, the operator operates the operation mode conversion unit to switch from the electric motor to the diesel engine operation mode, and the control unit 10 cuts off the supplied electricity.

전기 공급 차단 후, 제어부(10)는 모터동작검출부(460)로부터 신호를 수신하여 전기모터가 동작을 멈추었는가를 확인하고, 케이블의 연결상태 검출부(402)를 신호를 수신하여 연결된 상태라면, 시각 표시부 및 음성 출력부를 통해 케이블 제거 메시지를 출력하여 제거토록 하는 것이다. After the electricity supply is cut off, the control unit 10 receives a signal from the motor operation detection unit 460 to determine whether the electric motor has stopped operation, and receives the signal to the connection state detection unit 402 of the cable and connects the signal. The cable removal message is output through the display unit and the audio output unit to be removed.

이상에서 설명한 바와 같이, 본 발명이 속하는 기술 분야의 당업자는 본 발명이 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다. 그러므로 이상에서 기술한 실시예는 모두 예시적인 것이며 한정적인 것이 아닌 것으로서 이해해야만 한다. 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위의 의미 및 범위 그리고 그 등가개념으로부터 도출되는 모두 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다. As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, it should be understood that all of the embodiments described above are illustrative and not restrictive. The scope of the present invention should be construed as being included in the scope of the present invention, rather than the above detailed description, all changes or modifications derived from the meaning and scope of the claims to be described later and their equivalents.

10 : 제어부 20 : 시각표시부
100 : 굴삭기 120 : 디젤엔진
140 : 전기모터 200: 전원공급부
220 : 케이블 300 : 동작모드전환부
400 : 감지부 10: control unit 20: time display unit
100: excavator 120: diesel engine
140: electric motor 200: power supply
220: cable 300: operation mode conversion unit
400: sensing unit

Claims (5)

삭제delete 디젤엔진과 전기모터를 장착하고, 원거리 주행은 디젤엔진을 동작시키고, 작업장에서는 전기모터를 가동시키며 작업을 할 수 있도록 하는 전기굴삭기로써,
전기모터에서 디젤엔진, 디젤엔진에서 전기모터로 전환시켜 동작이 이루어지록 하는 동작모드전환부;
일단은 전원공급부와 연결되고 타단은 상기 전기모터와 연결되는 케이블;
상기 케이블이 감아지며, 굴삭기가 전원공급부에서 멀어지면 케이블이 풀리고, 가까워지면 자동으로 케이블 감는 릴;
상기 디젤엔진의 동작 유무를 검출하는 엔진동작검출부와, 상기 전기모터의 동작 상태를 검출하는 모터동작검출부와, 케이블의 이동 거리를 검출하는 거리검출부를 포함하는 감지부;
상기 거리 검출부의 신호를 수신하고, 기 입력된 케이블의 전체 길이와 굴삭기의 이동과 함께 이동하는 케이블의 잔여 길이를 산출하고, 잔여 길이가 기설정된 잔여 길이보다 짧으면 이를 경고하며,
상기 동작모드전환부를 통해 전기모터 동작모드로 전환되면 엔진동작검출부의 신호를 수신하여 동작 상태이며 전기공급을 차단하고, 정지 상태이면 전기공급을 인가하여 전기모터가 동작되도록 하고, 반대로 전기모터에서 디젤엔진 동작모드로 전환되면 전기 공급을 차단하고 모터동작검출부의 신호를 수신하여 전기 모터가 동작하고 있는가를 검출하는 제어부;
상기 제어부에서 산출된 잔여 길이를 표시하고, 잔여 길이가 기설정된 길이보다 짧으면 경고 메세지를 출력하며, 상기 엔진동작검출부와 모터동작검출부에서 수신된 동작 상태를 작업자가 알 수 있도록 출력하는 시각표시부;
상기 감지부에 케이블의 연결 상태를 점검하는 연결상태 검출부를 포함하고,
상기 제어부의 신호에 따라 릴을 회전시켜 케이블을 감는 릴 모터가 갖추어지며,
상기 릴의 앞쪽에 케이블의 이동을 안내하는 레일부를 구비하고, 이 레일부에 장공이 형성되며, 이 장공을 따라 상하 이동하는 가이드부를 구비하되, 상기 가이드부에 배전반과 상기 전기모터를 연결하여 전기를 공급하는 케이블이 끼워지며, 굴삭기가 작업을 위해 릴에서 멀어지면 케이블이 당겨지며 케이블과 가이드부가 장공을 따라 올라가고, 반대로 굴삭기가 복귀하면 케이블의 무게에 의해 가이드부와 케이블이 하강하는 것으로,
이 레일부에 설치되는 위치감지센서가 가이드부의 위치를 감지하고, 가이드부가 설정된 위치 아래에 위치하면 제어부가 그 신호를 수신하여 릴 모터를 회전시켜 케이블을 감도록 하고, 설정된 위치보다 가이드부가 위에 잇으면 케이블이 풀어지도록 릴 모터의 off 상태를 유지하는 것을 포함하는 엔진겸용 전기굴삭기.It is an electric excavator that is equipped with a diesel engine and an electric motor, operates the diesel engine for long-distance driving, and operates the electric motor in the workshop.
an operation mode conversion unit for converting an electric motor to a diesel engine and from a diesel engine to an electric motor to perform an operation;
a cable having one end connected to the power supply and the other end connected to the electric motor;
The cable is wound, and when the excavator is away from the power supply, the cable is released, and when the cable is close, the cable is automatically wound reel;
a sensing unit including an engine operation detection unit detecting whether the diesel engine is in operation, a motor operation detection unit detecting an operating state of the electric motor, and a distance detection unit detecting a movement distance of the cable;
Receives the signal of the distance detection unit, calculates the total length of the previously input cable and the remaining length of the cable that moves with the movement of the excavator, and warns if the remaining length is shorter than the preset remaining length,
When it is switched to the electric motor operation mode through the operation mode conversion unit, it receives a signal from the engine operation detection unit and is in an operating state and cuts off the electricity supply. a control unit configured to block the supply of electricity when the engine operation mode is switched and receive a signal from the motor operation detection unit to detect whether the electric motor is operating;
a time display unit for displaying the remaining length calculated by the control unit, outputting a warning message when the remaining length is shorter than a preset length, and outputting the operation state received from the engine operation detection unit and the motor operation detection unit so that the operator can know;
A connection state detection unit for checking the connection state of the cable to the sensing unit,
A reel motor is provided to rotate the reel according to the signal of the control unit to wind the cable,
A rail portion for guiding the movement of the cable is provided in front of the reel, and a long hole is formed in the rail portion, and a guide portion that moves up and down along the long hole is provided, wherein the guide portion connects the switchboard and the electric motor to generate electricity. When the excavator moves away from the reel for work, the cable is pulled and the cable and guide go up along the long hole. Conversely, when the excavator returns, the guide and cable descend by the weight of the cable.
A position sensor installed on the rail detects the position of the guide, and when the guide is located below the set position, the control unit receives the signal and rotates the reel motor to wind the cable, and the guide is above the set position. Electric excavator combined with an engine comprising maintaining the off state of the reel motor so that the cable is released when the 제 2항에 있어서,
상기 제어부의 신호에 따라 잔여 길이가 기설정된 잔여 길이보다 짧은 경고 메시지를 입력된 음성 또는 경고음을 출력하는 음성 출력부가 구비된 것을 더 포함하는 엔진겸용 전기굴삭기. 3. The method of claim 2,
The combined-engine electric excavator further comprising a voice output unit for outputting an inputted voice or a warning sound for a warning message whose remaining length is shorter than a preset remaining length according to a signal from the control unit. 제 2항에 있어서,
상기 거리검출부는 상기 릴의 회전수를 검출하는 회전수 검출 센서로 구성되며 케이블이 감아지는 정회전과, 케이블이 풀어지는 역회전수에 따라 잔여 길이를 검출하는 것을 포함하는 엔진겸용 전기굴삭기.
3. The method of claim 2,
The distance detector includes a rotation speed detection sensor that detects the rotation speed of the reel, and includes detecting the remaining length according to the forward rotation in which the cable is wound and the reverse rotation in which the cable is unwound.
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KR1020210054107A 2021-04-27 2021-04-27 engine combined use electric excavator KR102322221B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080096011A (en) * 2007-04-26 2008-10-30 대영산전 주식회사 Poclain used both as a motor and an engine
JP2009215855A (en) * 2008-03-13 2009-09-24 Hitachi Constr Mach Co Ltd Working machine
KR20120111004A (en) * 2011-03-31 2012-10-10 현대중공업 주식회사 Electric excavator system
KR20120114879A (en) * 2011-04-08 2012-10-17 현대중공업 주식회사 Electric excavator system
JP6599641B2 (en) * 2015-05-22 2019-10-30 株式会社モリタエコノス Work vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080096011A (en) * 2007-04-26 2008-10-30 대영산전 주식회사 Poclain used both as a motor and an engine
JP2009215855A (en) * 2008-03-13 2009-09-24 Hitachi Constr Mach Co Ltd Working machine
KR20120111004A (en) * 2011-03-31 2012-10-10 현대중공업 주식회사 Electric excavator system
KR20120114879A (en) * 2011-04-08 2012-10-17 현대중공업 주식회사 Electric excavator system
JP6599641B2 (en) * 2015-05-22 2019-10-30 株式会社モリタエコノス Work vehicle

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