KR20210095454A - Air supplying apparatus for the shotcrete of the pump car - Google Patents

Air supplying apparatus for the shotcrete of the pump car Download PDF

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KR20210095454A
KR20210095454A KR1020200009385A KR20200009385A KR20210095454A KR 20210095454 A KR20210095454 A KR 20210095454A KR 1020200009385 A KR1020200009385 A KR 1020200009385A KR 20200009385 A KR20200009385 A KR 20200009385A KR 20210095454 A KR20210095454 A KR 20210095454A
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pump
shotcrete
hydraulic
air supply
supplied
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KR1020200009385A
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Korean (ko)
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KR102440414B1 (en
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진원화
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진원화
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/20—Securing of slopes or inclines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/05—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06—Combinations of two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Paleontology (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

The present invention relates to a shotcrete air supply apparatus of a pump car. The shotcrete air supply apparatus comprises: a truck loading unit on which a shotcrete pump for spraying shotcrete and a pumping pipe are loaded, and which has an outrigger; a hopper provided on the rear of the truck loading unit; a boom provided to be positioned to a place and distance requiring the pumping pipe; and an air supply unit provided in the truck loading unit to spray shotcrete. The air supply unit is provided such that the shotcrete pump is coupled to the power output shaft of a transmission. A hydraulic pump is provided to be coupled to the shotcrete pump. Both the shotcrete pump and the hydraulic pump are provided to be driven by the power output shaft. The hydraulic pump has a hydraulic discharge line provided on a discharge side and is driven by oil supplied to a hydraulic motor. An air compression pump is provided in the hydraulic motor. A compressed air tank having a compressed air supply line for supplying compressed air to a nozzle provided at an end of the boom is provided on a discharge side of the air compression pump. The oil supplied to the hydraulic motor is supplied to a cooling unit through the hydraulic discharge line to be cooled. The oil cooled by the cooling unit is stored in an oil tank and is re-supplied and circulated by the hydraulic pump. Therefore, working hours can be reduced.

Description

펌프카의 숏크리트용 에어 공급장치{AIR SUPPLYING APPARATUS FOR THE SHOTCRETE OF THE PUMP CAR}Air SUPPLYING APPARATUS FOR THE SHOTCRETE OF THE PUMP CAR

이 건 발명은 펌프카의 숏크리트용 에어 공급장치에 관한 것으로서 특히, 숏크리트 펌프와 압송 파이프가 적재된 트럭 적재부에 동력취출축에 의하여 구동되는 유압모터 및 에어 압축펌프가 구비되도록 한 것이다.The present invention relates to an air supply device for shotcrete in a pump car, and in particular, a hydraulic motor driven by a power take-off shaft and an air compression pump are provided in a truck loading section on which the shotcrete pump and the pressure feed pipe are loaded.

일반적으로 도로, 철도 및 지하도로설비 등을 시공하는 토목공사에 있어 절개지를 절토하거나 터널공사를 통하여 도로 확보의 수단으로 시행하고 있으며, 이러한 시공방법에 있어서는 거푸집을 사용하지 않고, 콘크리트 밀크를 분사하여 절개된 터널이나 절개지의 슬럼프면을 보강하는 숏크리트공법이 사용되고 있다.In general, in civil works to construct roads, railroads, and underground road facilities, it is implemented as a means of securing roads through cutting cuts or tunnel construction. The shotcrete method is used to reinforce the slump surface of the incised tunnel or the incised area.

숏크리트공법에 의한 시공방법은 공사조건이나 시공상의 문제로 인하여 터널이나 법면의 슬럼프면에 습식의 콘크리트 밀크 분사의 숏크리트를 시행하여 지반이나 천정, 벽면을 보강하여 안정시킨 후 다음 공정 작업을 수행된다. 이때, 터널이나 법면에 숏크리트 공법에 의하여 살포된 콘크리트는 액상으로 된 급결재와 분말상으로 형성된 건식급결재를 사용하여 급속한 경화기 이루어질 수 있게 된다.In the construction method by the shotcrete method, due to construction conditions or construction problems, wet concrete milk injection shotcrete is applied to the slump surface of a tunnel or slope to reinforce and stabilize the ground, ceiling, or wall surface, and then the next process is performed. At this time, the concrete sprayed on the tunnel or slope by the shotcrete method can be rapidly hardened by using the liquid quick-setting material and the dry quick-setting material formed in the powder form.

한편, 숏크리트 공법에 사용되는 타설장비는 공개특허공보 제10-2009-00863 78호(2009.08.12)의 숏크리트 타설장비의 건식급결제 혼합장치에 제안되었고, 혼합장치를 갖는 타설장비는 펌프카의 숏크리트 송출수단에 열결된 붐의 단부에 혼합수단을 갖는 분사노즐이 구비되어 있고, 압축공기발생수단에 의하여 발생된 압축공기가 정량 송출수단을 경유하여 분사노즐로 공급됨에 따라 콘크리트 밀트에 급결제가 혼합된 상태에서 압축공기에 의하여 분사되도록 하였으나, 숏크리트 타설장비와 압축공기발생수단이 분리된 상태로 있음으로써, 장비 운용이나 작업에 어려움이 있었고, 작업을 위해 많은 공간을 확보해야되는 되는 공간확보상에 어려움이 있었다. 또한, 이로 인해 작업 비용과 시간이 더 많이 소요되는 문제점이 있었다.On the other hand, the pouring equipment used in the shotcrete construction method was proposed for the dry quick-setting mixing device of the shotcrete pouring equipment of Laid-Open Patent Publication No. 10-2009-00863 No. 78 (2009.08.12), and the pouring equipment having the mixing device is the shotcrete of the pump car. A spray nozzle having a mixing means is provided at the end of the boom connected to the delivery means, and as the compressed air generated by the compressed air generating means is supplied to the spray nozzle via the fixed delivery means, the rapid setting agent is mixed in the concrete mil. Although it was sprayed by compressed air in the closed state, it was difficult to operate or work with the shotcrete pouring equipment and compressed air generating means as they were separated. There were difficulties. In addition, due to this, there is a problem in that more work costs and time is required.

공개특허공보 제10-2009-00863 78호(2009.08.12)Laid-Open Patent Publication No. 10-2009-00863 No. 78 (2009.08.12)

이 건 발명은 숏크리트 타설장비인 펌프카에 압축공기발생수단인 압축기가 적재된 상태가 유지되도록 하여 장비의 운반이나 작업 운영에 따른 불편함을 해소할 수 있도록 하는 가운데 작업의 공간확보가 용이하게 이루어질 수 있도록 하고, 아울러 작업 시간을 줄이는 가운데 작업 비용이 절감될 수 있도록 한 것이다.The invention of this gun maintains the state in which the compressor, which is a means of generating compressed air, is loaded in the pump car, which is a shotcrete pouring equipment, so that the inconvenience caused by the transportation or operation of the equipment can be eliminated, and the space for the work can be easily secured. In addition, it is designed to reduce the working time while reducing the working cost.

본 발명은 숏크리트를 살포하기 위한 숏크리트 펌프(210),압송 파이프(220)가 적재되며, 아우트리거(230)를 갖는 트럭 적재부(20)의 후방에 호퍼(240)가 구비되어지고, 상기 압송 파이프(220)를 요구하는 장소,거리까지 위치되도록 하는 붐(250)이 구비되어지고, 상기 트럭 적재부(20)에 숏크리트를 살포하기 위한 에어 공급부(10)가 구비된 펌프카의 숏크리트용 에어 공급장치에 있어서, 상기 에어 공급부(10)는 변속기(TM)의 동력취출축(PTO)에 상기 숏크리트 펌프(210)가 결합되도록 구비되고, 상기 숏크리트 펌프(210)에 유압 펌프(110)가 결합되도록 구비되되, 상기 동력취출축(PTO)에 의하여 숏크리트 펌프(210)와 유압 펌프(110)가 동시에 구동되도록 구비되어지고, 상기 유압 펌프(110)는 토출측에 토출유압라인(111) 구비되어 오일이 유압모터(120)에 공급되어 구동되도록 구비되고, 상기 유압 모터(120)에 에어 압축펌프(130)가 구비되며, 상기 에어 압축펌프(130)에 토출측에 붐(250)의 끝단에 구비된 노즐(251)로 압축된 공기를 공급하는 압축공기 공급라인(141)을 갖는 압축공기 탱크(140)가 구비되어지고, 상기 유압모터(120)로 공급된 오일은 배출유압라인(112)을 통해 냉각부(150)로 공급되어 냉각되도록 구비되고, 상기 냉각부(150)에서 냉각된 오일이 오일탱크(160)에 저장되며, 상기 유압펌프(110)로 재공급 순환되도록 구비됨을 특징으로 한다.According to the present invention, a shotcrete pump 210 for spraying shotcrete and a pressure feed pipe 220 are loaded, and a hopper 240 is provided at the rear of the truck loading unit 20 having an outrigger 230, and the pressure feed Air supply for shotcrete of a pump car equipped with a boom 250 that allows the pipe 220 to be located to a required place and distance, and an air supply unit 10 for spraying shotcrete to the truck loading part 20 In the device, the air supply unit 10 is provided such that the shotcrete pump 210 is coupled to the power take-off shaft PTO of the transmission TM, and the hydraulic pump 110 is coupled to the shotcrete pump 210. Doedoe, the shotcrete pump 210 and the hydraulic pump 110 are simultaneously driven by the power take-off shaft (PTO), and the hydraulic pump 110 is provided with a discharge hydraulic line 111 on the discharge side to supply oil The nozzle is provided to be supplied to and driven by the hydraulic motor 120 , the air compression pump 130 is provided in the hydraulic motor 120 , and the nozzle provided at the end of the boom 250 on the discharge side to the air compression pump 130 . A compressed air tank 140 having a compressed air supply line 141 for supplying compressed air to 251 is provided, and the oil supplied to the hydraulic motor 120 is cooled through a discharge hydraulic line 112 . It is provided to be supplied to the unit 150 to be cooled, the oil cooled by the cooling unit 150 is stored in the oil tank 160 , and it is characterized in that it is provided to be re-supplied and circulated to the hydraulic pump 110 .

또한, 상기 유압펌프(110)와 유압모터(120)를 연결하는 토출유압라인(111)은 오일탱크(160)에 연결되는 드레인라인(113)이 구비됨을 특징으로 한다.In addition, the discharge hydraulic line 111 connecting the hydraulic pump 110 and the hydraulic motor 120 is characterized in that a drain line 113 connected to the oil tank 160 is provided.

또한, 상기 드레인라인(113)은 3방향 솔레노이드밸브(170)에 의하여 유압라인의 유로가 전환되도록 구비됨을 특징으로 한다.In addition, the drain line 113 is characterized in that the flow path of the hydraulic line is switched by the three-way solenoid valve 170 .

또한, 상기 유압펌프(110)는 단부에 노즐액츄에이터 구동부(180)가 결합되게 구비되어지고, 상기 붐(250)의 단부에 구비된 노즐 액츄에이터(252)로 작동유가 공급되도록 구비됨을 특징으로 한다.In addition, the hydraulic pump 110 is provided so that the nozzle actuator driving unit 180 is coupled to the end, and the hydraulic oil is supplied to the nozzle actuator 252 provided at the end of the boom 250 .

그리고, 상기 유압펌프(110)에 결합된 노즐액츄에이터 구동부(180)는 변속기(TM)의 동력취출축(PTO)에 연동되도록 구비됨을 특징으로 한다.And, the nozzle actuator driving unit 180 coupled to the hydraulic pump 110 is characterized in that it is provided to interlock with the power take-off shaft (PTO) of the transmission (TM).

본 발명은 숏크리트 펌프와 압송 파이프가 적재된 트럭 적재부에 동력취출축에 의하여 구동되는 유압모터 및 에어 압축펌프가 구비되도록 함으로써, 공간활용율을 높일 수 있는 효과를 얻을 수 있다.According to the present invention, a hydraulic motor driven by a power take-out shaft and an air compression pump are provided in the truck loading section on which the shotcrete pump and the pressure feeding pipe are loaded, thereby increasing the space utilization rate.

또한, 이를 통해 작업과정에서 1차선의 도로만을 막도록 함으로써, 교통체증이 발생되는 것을 최소화할 수 있는 효과를 얻을 수 있다.In addition, it is possible to obtain the effect of minimizing the occurrence of traffic congestion by blocking only the one-lane road in the work process.

또한, 이를 통해 숏크리트 작업이 더 용이하게 이루어질 수 있는 효과를 얻을 수 있다.In addition, through this, it is possible to obtain the effect that the shotcrete work can be made more easily.

그리고 이를 통해 숏크리트 작업에 소요되는 장비를 줄여 운영이 소요되는 비용이 절감될 수 있는 효과를 얻을 수 있다.And through this, it is possible to obtain the effect of reducing the cost of operation by reducing the equipment required for shotcrete work.

도1은 이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치가 적재된 펌프카를 도시한 예시도.
도2는 이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치를 도시한 예시도.
도3a 및 도3b는 이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치에 있어 숏크리트 펌프와 유압펌프 및 노즐액츄에이터 구동부를 확대 도시한 예시도.1 is an exemplary view showing a pump car loaded with an air supply device for shotcrete of a pump car according to the present invention.
2 is an exemplary view showing an air supply device for shotcrete of a pump car according to the invention of this gun.
3A and 3B are enlarged views illustrating a shotcrete pump, a hydraulic pump, and a nozzle actuator driving unit in the air supply device for shotcrete of a pump car according to the present invention.

이 건 발명의 실시예를 첨부 도면을 참조하여 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

도1은 이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치가 적재된 펌프카를 도시한 예시도이고, 도2는 이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치를 도시한 예시도이고, 도3a 및 도3b는 이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치에 있어 숏크리트 펌프와 유압펌프 및 노즐액츄에이터 구동부를 확대 도시한 예시도이다.1 is an exemplary view showing a pump car loaded with an air supply device for shotcrete of a pump car according to the invention of this gun, FIG. 2 is an exemplary view showing an air supply device for shotcrete of a pump car according to the invention of this gun, FIG. 3a and FIG. 3b is an enlarged view illustrating a shotcrete pump, a hydraulic pump, and a nozzle actuator driving unit in the air supply device for shotcrete of a pump car according to the present invention.

이 건 발명에 따른 펌프카의 숏크리트용 에어 공급장치는 공간활용율을 높일 수 있도록 하는 가운데 교통체증이 발생되는 것을 최소화할 수 있도록 하고, 아울러 숏크리트 작업에 소요되는 장비를 줄여 운영이 소요되는 비용이 절감될 수 있도록 하는 가운데 숏크리트 작업이 더 용이하게 이루어질 수 있도록 한 것으로, 도1 내지 도3a,도3b에 도시된 바와 같이, 트럭 적재부(20)에 숏크리트를 살포하기 위한 에어 공급부(10)가 적재될 수 있도록 구비되어 있다.The air supply device for the shotcrete of the pump car according to the present invention can increase the space utilization rate and minimize the occurrence of traffic congestion, and also reduce the equipment required for the shotcrete work, thereby reducing the operating cost. As shown in Figs. 1 to 3a and 3b, the air supply unit 10 for spraying the shotcrete on the truck loading unit 20 is loaded. It is available for you.

상기 트럭 적재부(20)는 상부에 숏크리트를 살포하기 위한 숏크리트 펌프(210)와 압송 파이프(220)가 적재되며, 트럭 잭재부(20)가 안정되게 지지되도록 하는 다수개의 아우트리거(230)가 구비되어 있고, 상기 트럭 적재부(20)의 후방에는 미도시한 콘크리트 믹서로부터 혼합된 콘크리트를 받아 이송되도록 하는 호퍼(240)가 구비되어 있다.The truck loading part 20 is loaded with a shotcrete pump 210 for spraying shotcrete and a pressure pipe 220 on the upper part, and a plurality of outriggers 230 for stably supporting the truck jack member 20 are provided. A hopper 240 is provided at the rear of the truck loading unit 20 to receive and transport the mixed concrete from a concrete mixer (not shown).

상기 트럭 적재부(20)는 붐(250)이 구비되어 압송 파이프(220)를 작업에 필요, 요구하는 장소,거리까지 위치되도록 구비되어 있다.The truck loading unit 20 is provided with a boom 250 so as to be located to the required, required place and distance for the pressure conveying pipe 220 to work.

상기 에어 공급부(10)는 트럭의 엔진에 연결되도록 구비된 변속기(TM)의 동력취출축(PTO)에 상기 숏크리트 펌프(210)가 축이음으로 결합되어 동시에 구동이 될 수 있도록 구비되어 있고, The air supply unit 10 is provided so that the shotcrete pump 210 is coupled to the power take-off shaft (PTO) of the transmission (TM) provided to be connected to the engine of the truck so that it can be driven at the same time,

상기 숏크리트 펌프(210)에 유압 펌프(110)가 결합됨에 따라 동력취출축(PTO)의 구동에 따라 숏크리트 펌프(210)와 유압 펌프(110)가 동시에 구동될 수 있도록 구비되어 상기 유압 펌프(110)가 별도의 구동력원이 없이도 구동될 수 있도록 구비되어 있다.As the hydraulic pump 110 is coupled to the shotcrete pump 210, it is provided so that the shotcrete pump 210 and the hydraulic pump 110 can be simultaneously driven according to the driving of the power take-off shaft (PTO). ) is provided so that it can be driven without a separate driving force source.

상기 유압 펌프(110)는 토출측에 토출유압라인(111) 구비됨으로써, 유압 펌프(110)에 구동에 따라 발생된 압축된 오일이 유압모터(120)에 공급되어 구동되도록 구비되어 있다.The hydraulic pump 110 is provided with a discharge hydraulic line 111 on the discharge side so that compressed oil generated according to the operation of the hydraulic pump 110 is supplied to the hydraulic motor 120 to be driven.

상기 유압 모터(120)의 구동축에는 에어 압축펌프(130)가 축이음으로 구비되어 구동될 수 있도록 구비되어 있고, 상기 에어 압축펌프(130)에 토출측에는 압축공기 탱크(140)가 구비됨에 따라 압축 공기 탱크(140)에 저장된 압축공기는 압축공기 공급라인(141)을 통해 붐(250)의 끝단에 구비된 노즐(251)로 압축된 공기를 공급될 수 있도록 구비되어 있다.The drive shaft of the hydraulic motor 120 is provided with an air compression pump 130 so as to be driven by a shaft joint, and the compressed air tank 140 is provided on the discharge side of the air compression pump 130 for compression. The compressed air stored in the air tank 140 is provided so that the compressed air can be supplied to the nozzle 251 provided at the end of the boom 250 through the compressed air supply line 141 .

상기 유압모터(120)는 유압모터(120)를 구동시킨 오일이 배출유압라인(112)을 통해 냉각부(150)로 공급되어 일정 온도 이하로 냉각되도록 구비되어 있고, 상기 냉각부(150)에서 냉각된 오일은 오일탱크(160)에 저장되는 가운데 저장된 일부의 냉각된 오일이 상기 유압펌프(110)로 재공급 순환되도록 구비되어 있다.The hydraulic motor 120 is provided so that the oil driving the hydraulic motor 120 is supplied to the cooling unit 150 through the discharge hydraulic line 112 to be cooled below a certain temperature, and in the cooling unit 150 The cooled oil is provided so that some cooled oil stored while being stored in the oil tank 160 is re-supplied and circulated to the hydraulic pump 110 .

상기 유압펌프(110)와 유압모터(120)를 연결하는 토출유압라인(111)은 오일탱크(160)에 연결되는 드레인라인(113)이 구비되어 에어를 압축시키지 않을 경우, 오일이 오일탱크(160) 내부로 자동으로 드레인 되도록 구비되어 있다. 이때, 상기 드레인라인(113)에는 3방향 솔레노이드밸브(170)에 의하여 유압라인의 유로가 전환되도록 구비되어 있다. 즉, 상기 3방향 솔레노이드밸브(170)는 평상시 오일리 리턴되도록 하는 가운데 압축공기가 필요할 경우, 유압모터(120)로 오일이 공급될 수 있도록 구비되어 있다.The discharge hydraulic line 111 connecting the hydraulic pump 110 and the hydraulic motor 120 is provided with a drain line 113 connected to the oil tank 160. 160) is provided to automatically drain into the interior. At this time, the drain line 113 is provided so that the flow path of the hydraulic line is switched by the three-way solenoid valve 170 . That is, the three-way solenoid valve 170 is provided so that oil can be supplied to the hydraulic motor 120 when compressed air is required while the oil returns normally.

상기 유압펌프(110)의 단부에는 노즐액츄에이터 구동부(180)가 결합되어 노즐(251)의 위치가 변화될 수 있도록 하여 최적의 상태에서 숏크리트가 분사될 수 있도록 구비되어 있다. 즉, 붐(250)의 단부가 일정한 위치에 오도록 고정된 상태에서 상기 노즐액츄에이터 구동부(180)에 의하여 노즐(251)의 분사방향이 상부에서 하부 또는 좌측에서 우측으로 가변될 수 있게 됨에 따라 그 만큼의 살포 작업 방향이 넓어질 수 있게 된다.A nozzle actuator driving unit 180 is coupled to an end of the hydraulic pump 110 so that the position of the nozzle 251 can be changed so that the shotcrete can be sprayed in an optimal state. That is, in a state in which the end of the boom 250 is fixed to come to a predetermined position, the injection direction of the nozzle 251 can be changed from the top to the bottom or from the left to the right by the nozzle actuator driving unit 180. It becomes possible to widen the direction of the spraying operation.

이는 상기 붐(250)의 단부에 구비된 노즐 액츄에이터(252)로 작동유가 공급되어 이루어지게 된다. 이때, 상기 유압펌프(110)에 결합된 노즐액츄에이터 구동부(180)는 변속기(TM)의 동력취출축(PTO)에 연동되도록 구비됨에 따라 별도의 구동력원이 필요치 않은 상태로 구동될 수 있게 된다.This is accomplished by supplying hydraulic oil to the nozzle actuator 252 provided at the end of the boom 250 . At this time, as the nozzle actuator driving unit 180 coupled to the hydraulic pump 110 is provided to be linked to the power take-off shaft PTO of the transmission TM, it can be driven without a separate driving power source.

이와 같은 펌프카의 숏크리트용 에어 공급장치에 의하여 숏크리트가 살포되는 과정은 다음과 같다.The process of spraying the shotcrete by the air supply device for the shotcrete of the pump car is as follows.

먼저, 트럭의 엔진을 구동시켜 변속기(TM)가 구동되도록 하면 변속기(TM)에 구비된 동력취출축(PTO)이 연동되고, 동력취출축(PTO)이 연동됨과 동시에 동력취출축(PTO)에 축이음으로 결합된 숏크리프 펌프(210)와 유압펌프(110) 및 노즐액츄에이터 구동부(180)가 동시에 구동된다.First, when the engine of the truck is driven to drive the transmission TM, the power take-off shaft PTO provided in the transmission TM is interlocked, and the power take-off shaft PTO is interlocked and at the same time as the power take-off shaft PTO. The shot creep pump 210, the hydraulic pump 110, and the nozzle actuator driving unit 180 coupled by a shaft joint are simultaneously driven.

다음, 유압펌프(110)의 구동에 따라 오일이 토출유압라인(111)을 통해 유압모터(120)로 공급됨으로써, 유압모터(120)가 구동됨과 동시에 에어 압축펌프(130)가 같이 구동되면서 압축된 에어가 압축공기 탱크(140)에 저장된다.Next, according to the driving of the hydraulic pump 110, oil is supplied to the hydraulic motor 120 through the discharge hydraulic line 111, so that the hydraulic motor 120 is driven and the air compression pump 130 is driven together and compressed. The compressed air is stored in the compressed air tank (140).

다음, 숏크리트 펌프(210)의 구동에 따라 숏크리트가 압송 파이프(220)로 압송되며, 압송된 숏크리트가 노즐(251)을 통과함과 동시에 압축공기 탱크(140)로부터 압공공기 공급라인(141)을 통해 노즐(251)로 압축공기가 공급되어 숏크리트의 살포가 이루어게 된다.Next, according to the driving of the shotcrete pump 210, the shotcrete is pressurized to the pressure-feeding pipe 220, and the pressure-feeded shotcrete passes through the nozzle 251 and at the same time from the compressed air tank 140 to the pneumatic air supply line 141. Compressed air is supplied to the nozzle 251 through the , so that the shotcrete is sprayed.

다음, 노즐(251)을 통해 숏크리트의 살포가 진행되는 가운데 노즐액츄에이터 구동부(180)에서 발생된 압력이 노즐액츄에이터(252)로 공급됨에 따라 노즐(251)의 방향이 상부에서 하부 또는 좌측에서 우측으로 가변되어 숏크리트의 살포 범위가 넓어지게 되고, 이러한 과정의 반복을 통해 숏크리트가 살포되게 된다.Next, as the pressure generated by the nozzle actuator driving unit 180 is supplied to the nozzle actuator 252 while the shotcrete is sprayed through the nozzle 251, the direction of the nozzle 251 is from top to bottom or from left to right. Variable, the spraying range of shotcrete is widened, and shotcrete is sprayed through repetition of this process.

10:에어 공급부 20:트럭 적재부
110:유압 펌프 111:토출유압라인
112:배출유압라인 120:유압모터
130:에어 압축펌프 140:압축공기 탱크
141:압축공기 공급라인 150:냉각부
160:오일탱크 210:숏크리트 펌프
220:압송 파이프 230:아우트리거
240:호퍼 250:붐
251:노즐10: air supply unit 20: truck loading unit
110: hydraulic pump 111: discharge hydraulic line
112: discharge hydraulic line 120: hydraulic motor
130: air compression pump 140: compressed air tank
141: compressed air supply line 150: cooling unit
160: oil tank 210: shotcrete pump
220: pressure feed pipe 230: outrigger
240: Hopper 250: Boom
251: Nozzle

Claims (5)

숏크리트를 타설하기 위한 숏크리트 펌프(210),압송 파이프(220)가 적재되며, 아우트리거(230)를 갖는 트럭 적재부(20)의 후방에 호퍼(240)가 구비되어지고, 상기 압송 파이프(220)를 요구하는 장소,거리까지 위치되도록 하는 붐(250)이 구비되어지고, 상기 트럭 적재부(20)에 숏크리트를 분사하기 위한 에어 공급부(10)가 구비된 펌프카의 숏크리트용 에어 공급장치에 있어서,
상기 에어 공급부(10)는 변속기(TM)의 동력취출축(PTO)에 상기 숏크리트 펌프(210)가 결합되도록 구비되고, 상기 숏크리트 펌프(210)에 유압 펌프(110)가 결합되도록 구비되되, 상기 동력취출축(PTO)에 의하여 숏크리트 펌프(210)와 유압 펌프(110)가 동시에 구동되도록 구비되어지고, 상기 유압 펌프(110)는 토출측에 토출유압라인(111) 구비되어 오일이 유압모터(120)에 공급되어 구동되도록 구비되고, 상기 유압 모터(120)에 에어 압축펌프(130)가 구비되며, 상기 에어 압축펌프(130)에 토출측에 붐(250)의 끝단에 구비된 노즐(251)로 압축된 공기를 공급하는 압축공기 공급라인(141)을 갖는 압축공기 탱크(140)가 구비되어지고, 상기 유압모터(120)로 공급된 오일은 배출유압라인(112)을 통해 냉각부(150)로 공급되어 냉각되도록 구비되고, 상기 냉각부(150)에서 냉각된 오일이 오일탱크(160)에 저장되며, 상기 유압펌프(110)로 재공급 순환되도록 구비됨을 특징으로 하는 펌프카의 숏크리트용 에어 공급장치.
A shotcrete pump 210 for pouring shotcrete and a pressure feed pipe 220 are loaded, and a hopper 240 is provided at the rear of the truck loading unit 20 having an outrigger 230, and the pressure feed pipe 220 In the air supply device for shotcrete of a pump car, the boom 250 is provided to be positioned to a place and distance that requires ), and the air supply part 10 for spraying the shotcrete to the truck loading part 20 is provided. ,
The air supply unit 10 is provided such that the shotcrete pump 210 is coupled to the power take-off shaft (PTO) of the transmission TM, and the hydraulic pump 110 is coupled to the shotcrete pump 210, the The shotcrete pump 210 and the hydraulic pump 110 are simultaneously driven by the power take-off shaft (PTO), and the hydraulic pump 110 is provided with a discharge hydraulic line 111 on the discharge side so that oil is supplied to the hydraulic motor 120 ) to be supplied and driven, an air compression pump 130 is provided in the hydraulic motor 120, and a nozzle 251 provided at the end of the boom 250 on the discharge side to the air compression pump 130. A compressed air tank 140 having a compressed air supply line 141 for supplying compressed air is provided, and the oil supplied to the hydraulic motor 120 is supplied to the cooling unit 150 through an exhaust hydraulic line 112 . Air supply for shotcrete of a pump car, characterized in that provided to be supplied to and cooled, the oil cooled by the cooling unit 150 is stored in the oil tank 160, and provided to be re-supplied and circulated to the hydraulic pump 110 Device.
 제1항에 있어서,
상기 유압펌프(110)와 유압모터(120)를 연결하는 토출유압라인(111)은 오일탱크(160)에 연결되는 드레인라인(113)이 구비됨을 특징으로 하는 펌프카의 숏크리트용 에어 공급장치.
According to claim 1,
The discharge hydraulic line (111) connecting the hydraulic pump (110) and the hydraulic motor (120) is provided with a drain line (113) connected to the oil tank (160).
 제2항에 있어서,
상기 드레인라인(113)은 3방향 솔레노이드밸브(170)에 의하여 유압라인의 유로가 전환되도록 구비됨을 특징으로 하는 펌프카의 숏크리트용 에어 공급장치.
3. The method of claim 2,
The drain line (113) is an air supply device for shotcrete of a pump car, characterized in that the flow path of the hydraulic line is switched by the three-way solenoid valve (170).
 제1항에 있어서,
상기 유압펌프(110)는 단부에 노즐액츄에이터 구동부(180)가 결합되게 구비되어지고, 상기 붐(250)의 단부에 구비된 노즐 액츄에이터(252)로 작동유가 공급되도록 구비됨을 특징으로 하는 펌프카의 숏크리트용 에어 공급장치.
According to claim 1,
The hydraulic pump 110 is provided with a nozzle actuator driving unit 180 coupled to the end, and hydraulic oil is supplied to the nozzle actuator 252 provided at the end of the boom 250. Shotcrete of a pump car, characterized in that for air supply.
 제1항에 있어서,
상기 유압펌프(110)에 결합된 노즐액츄에이터 구동부(180)는 변속기(TM)의 동력취출축(PTO)에 연동되도록 구비됨을 특징으로 하는 펌프카의 숏크리트용 에어 공급장치.According to claim 1,
The nozzle actuator driving unit 180 coupled to the hydraulic pump 110 is provided to interlock with the power take-off shaft (PTO) of the transmission (TM).
KR1020200009385A 2020-01-23 2020-01-23 Air supplying apparatus for the shotcrete of the pump car KR102440414B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090086378A (en) 2009-07-15 2009-08-12 최찬희 A quickly hardening agent mixture machine for shotcrete
KR101233394B1 (en) * 2012-04-13 2013-02-15 (주)한서정공 Splay system of loading type in vehicle
KR101407714B1 (en) * 2012-07-16 2014-06-16 주식회사 죽암기계 Bale wrapper with hydraulic pump
KR20190024257A (en) * 2017-08-31 2019-03-08 윤선중 Hydraulic power driving system for cargo vehicles
KR101982814B1 (en) * 2018-09-28 2019-05-28 (주)유니온물산 Shotcrete construction machinery equipped with digital indicator of fiber input and shotcrete construction quantities, and fiber Dispersion device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090086378A (en) 2009-07-15 2009-08-12 최찬희 A quickly hardening agent mixture machine for shotcrete
KR101233394B1 (en) * 2012-04-13 2013-02-15 (주)한서정공 Splay system of loading type in vehicle
KR101407714B1 (en) * 2012-07-16 2014-06-16 주식회사 죽암기계 Bale wrapper with hydraulic pump
KR20190024257A (en) * 2017-08-31 2019-03-08 윤선중 Hydraulic power driving system for cargo vehicles
KR101982814B1 (en) * 2018-09-28 2019-05-28 (주)유니온물산 Shotcrete construction machinery equipped with digital indicator of fiber input and shotcrete construction quantities, and fiber Dispersion device

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