KR102143734B1 - A concrete pump system - Google Patents

A concrete pump system Download PDF

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Publication number
KR102143734B1
KR102143734B1 KR1020200055730A KR20200055730A KR102143734B1 KR 102143734 B1 KR102143734 B1 KR 102143734B1 KR 1020200055730 A KR1020200055730 A KR 1020200055730A KR 20200055730 A KR20200055730 A KR 20200055730A KR 102143734 B1 KR102143734 B1 KR 102143734B1
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KR
South Korea
Prior art keywords
concrete
valve plates
hopper
open
pistons
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KR1020200055730A
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Korean (ko)
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이형주
홍숙영
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거성산업개발주식회사
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    • 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
    • F04B15/023—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 supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/12—Valves; Arrangement of valves arranged in or on pistons
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0042—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member
    • F04B7/0046—Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for rotating distribution members
    • 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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/04—Piston machines or pumps characterised by having positively-driven valving in which the valving is performed by pistons and cylinders coacting to open and close intake or outlet ports
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical

Abstract

The present invention relates to a concrete pump apparatus. The concrete pump apparatus includes: a hopper (1) storing unhardened concrete and provided with valve plates (12, 13) to open or close two discharge holes formed in a lower part; two cylinders (2, 3) spaced apart from each other to convey concrete; supply pipes (2′,3′) connected to the front of each of the cylinders (2,3), storing pistons (22,32) provided at an end of piston rods (21,31) to be movable therein, and taking concrete through the front of the pistons; and an operation means (5) rotating the valve plates (12, 13) separately to an opening and closing position. In regard to the operating means (5), one end is connected to each of the piston rods (21,31) so that the discharge holes of the hopper (1) are opened or closed mechanically in interoperation with the forward or backward movement of each of the pistons (22, 32), and the other end is connected to the valve plates (12, 13) so that each of the valve plates are rotated to an opening and closing position and thus, costs for maintenance can be significantly reduced. Also, as the valve plates opening and closing a supply passage of the hopper are operated by being mechanically connected with the pistons, there is no need for a high-priced cylinder and a controller, which can lead to a considerable reduction in costs for manufacturing a pump apparatus.

Description

콘크리트 펌프장치{A CONCRETE PUMP SYSTEM}Concrete pump device {A CONCRETE PUMP SYSTEM}

본 발명은 콘크리트 펌프장치에 관한 것으로, 특히 두개의 피스톤들이 교대로 전후진되면서 콘크리트를 펌핑하도록 된 콘크리트 펌프장치에서 호퍼의 하단에 제공된 두개의 밸브판들을 피스톤들의 작동에 연동하여 교대로 개폐하도록 개선된 구조의 콘크리트 펌프장치에 관한 것이다. The present invention relates to a concrete pump device, in particular, in a concrete pump device that pumps concrete while two pistons are alternately moved back and forth, two valve plates provided at the lower end of the hopper are improved to alternately open and close in conjunction with the operation of the pistons. It relates to a concrete pumping device of the old structure.

일반적으로, 콘크리트 펌프카는, 고층건물과 같이 콘크리트를 직접 운반하기 어려운 구조물을 축조하는 경우 콘크리트를 타설 현장까지 콘크리트 이송관을 통해 압송하여 타설 현장에 직접 콘크리트를 타설하도록 사용되어 왔다.In general, concrete pump cars have been used to place concrete directly on the pouring site by pushing concrete through a concrete transfer pipe to the pouring site when constructing a structure that is difficult to directly transport concrete, such as a high-rise building.

이러한 콘크리트 펌프장치는 호퍼 하단부에 제공된 두개의 토출공들을 밸브판으로 선택적으로 개폐하면서 호퍼 하단의 토출공를 통해 유입된 콘크리트를 두개의 피스톤들을 교대로 작동시켜 콘크리트를 압송하도록 하는 것이 일반적이다.In such a concrete pump device, it is common to selectively open and close two discharge holes provided at the lower end of the hopper with a valve plate, and alternately operate the two pistons of the concrete introduced through the discharge holes at the lower end of the hopper to pump the concrete.

이러한 콘크리트 펌프장치의 예로서, 한국 공개특허공보 제1996-0008044호(공개일자 1996년03월22일)에는 미경화콘크리트가 내부로 부어지는 공급호퍼와, 상기 공급호퍼의 하부로 연통되는 한쌍의 공급통로와, 상기 공급통로들에 연통되어서 공급되는 미경화콘크리트를 펌핑하는 한쌍의 펌핑통로로 구성되는 것에 있어서, 상기 공급통로들의 양측에는 흡입밸브실린더들로서 개별적으로 슬라이드 개폐되는 한쌍의 흡입밸브를 설치하고, 상기 펌핑통로들의 양측에는 펌핑실린더들이 배치되도록하되, 상기 한쌍의 펌핑통로들의 토출관측에는 양측의 토출밸브실린더들로서 개별적으로 슬라이드 개폐되는 한쌍의 토출밸브들을 배치하여서, 하나의 펌핑실린더의 펌핑동작이 완료되기 이전에 다른 펌핑실린더도 동시에 펌핑동작을 개시할 수 있도록 하는 콘크리트 펌프가 개시되어 있다.As an example of such a concrete pump device, Korean Patent Laid-Open Publication No. 1996-0008044 (published on March 22, 1996) includes a supply hopper through which uncured concrete is poured, and a pair of Consisting of a supply passage and a pair of pumping passages for pumping the uncured concrete supplied in communication with the supply passages, a pair of suction valves that slide and open individually as suction valve cylinders are installed on both sides of the supply passages. And, the pumping cylinders are arranged on both sides of the pumping passages, and a pair of discharge valves that slide and open individually as discharge valve cylinders on both sides are arranged on the discharge observation side of the pair of pumping passages, and the pumping operation of one pumping cylinder A concrete pump is disclosed that allows the other pumping cylinders to start pumping at the same time before this is completed.

그러나, 상기한 종래의 콘크리트 펌프장치에서는 호퍼의 하부에 형성된 한쌍의 공급통로들에 제공된 흡입밸브들을 별도로 구비된 두개의 실린더들로 작동시켜야 하는 구조로 되어 제조비용의 상승을 초래하였고 사용에 따른 실린더들의 보수유지비용 또한 많이 소요되는 문제가 있었다. However, in the above-described conventional concrete pump device, the suction valves provided in the pair of supply passages formed under the hopper have to be operated by two separate cylinders, resulting in an increase in manufacturing cost. There was a problem that the maintenance cost of maintenance was also high.

한국 공개특허공보 제1996-0008044호(공개일자 1996년03월22일)Korean Patent Application Publication No. 1996-0008044 (published on March 22, 1996)

본 발명의 목적은 종래 기술에 따른 문제점을 해결하기 위하여, 호퍼 하단부의 공급통로들 각각에 제공된 두개의 밸브판들을, 한쌍의 피스톤들 닥각의 피스톤로드에 연결시켜 콘크리트 토출을 위한 피스톤 전진시에 호퍼의 밸브판을 닫히게 하고, 피스톤의 후퇴시에 밸브판이 개방되게 하여 호퍼로 부터 공급관으로 콘크리트가 유입되도록 호퍼의 공급통로들에 제공된 한쌍의 밸브판들을 피스톤들의 작동에 연동하여 교대로 개폐되도록 개선된 콘크리트 펌프장치를 제공하는 것이다.An object of the present invention is to solve the problem according to the prior art, by connecting two valve plates provided in each of the supply passages at the lower end of the hopper to the piston rod of the pair of pistons, and when the piston advances for concrete discharge, the hopper The valve plate of the hopper is closed and the valve plate is opened when the piston is retracted, so that the pair of valve plates provided in the supply passages of the hopper are alternately opened and closed in conjunction with the operation of the pistons so that concrete flows into the supply pipe from the hopper. It is to provide a concrete pump device.

상기한 목적을 달성하기 위하여, 본 발명에 의한 콘크리트 펌프장치는, 미경화 콘크리트를 수용하며 하단부에 형성된 두개의 토출용 토출공들을 개폐하도록 밸브판들이 제공된 호퍼, 콘크리트를 압송하기 위한 두개의 이격되어 배치된 실린더, 상기 실린더들 각각의 앞쪽에 연결되고 내부에 피스톤로드들의 단부에 제공된 피스톤들을 이동가능하게 수용하며 피스톤의 앞쪽으로 콘크리트가 유입되는 공급관 및 상기 밸브판들을 개폐 위치로 각각 회동시키는 작동수단을 구비하는 콘크리트 펌프장치에 있어서,In order to achieve the above object, the concrete pump device according to the present invention is a hopper provided with valve plates to open and close two discharge holes formed at the lower end and accommodate uncured concrete, and two spaced apart for pumping concrete. Arranged cylinders, a supply pipe connected to the front of each of the cylinders and movably receiving the pistons provided at the ends of the piston rods therein, a supply pipe through which concrete flows into the front of the piston, and an operation means for rotating the valve plates to the open/close position respectively In the concrete pump device having a,

상기 작동수단은 기계식으로 피스톤들 각각의 전진 또는 후진에 연동하여 상기 호퍼의 토출공을 개폐시키도록 피스톤로드들 각각에 일단부가 연결되고 타단부는 밸브판들에 연결되어 상기 밸브판들을 개폐 위치로 각각 회동시키도록 된 것을 특징으로 하여 구성된다.The operation means is mechanically linked to each of the pistons forward or backward, so that one end is connected to each of the piston rods to open and close the discharge hole of the hopper, and the other end is connected to the valve plates to move the valve plates to an open/close position. It is configured to be characterized in that each rotation.

상기 작동수단은 공급관들 각각의 측부에 길이방향으로 형성된 절개공들을 통해 피스톤로드들 각각에 연결부재로 일단부가 연결된 것을 특징으로 하여 구성된다.The operating means is configured in that one end is connected to each of the piston rods as a connecting member through cutouts formed in the longitudinal direction on each side of the supply pipes.

상기 작동로드의 타단부에는 링크부재가 연결되고, 상기 링크부재의 상단은 밸브판들 각각에 연결된 회전축의 양측 단부에 연결되어 작동로드의 전후진에 연동되어 링크부재를 정역회전시켜 링크부재들에 각각 축이 연결된 밸브판들을 개폐시키도록 된다.A link member is connected to the other end of the actuating rod, and the upper end of the link member is connected to both ends of a rotation shaft connected to each of the valve plates and interlocks with the forward and backward movement of the actuating rod to rotate the link member forward and backward. Each shaft is connected to open and close the valve plates.

상기 밸브판들이 고정된 각각의 회전축들은 서로에 대하여 자유로이 회전될 수 있게 대향측 단부들이 공통의 베어링으로 지지되며, 반대쪽 단부들은 링크부재들 각각에 고정된다. Each of the rotation shafts to which the valve plates are fixed are supported by a common bearing at opposite ends so that they can freely rotate with respect to each other, and opposite ends are fixed to each of the link members.

또한, 상기 작동수단에서 링크부재는 작동로드의 단부에 형성된 장공에서 이동가능하게 연결되어 밸브판들의 개폐 위치로의 회전에 필요한 작동로드의 이동거리 변화 차이를 흡수하도록 구성되는 것이 바람직하다.In addition, it is preferable that the link member in the operation means is movably connected in a long hole formed at the end of the operation rod and is configured to absorb a difference in movement distance change of the operation rod required for rotation of the valve plates to the open/close position.

본 발명에 따라 호퍼 하단부에 형성된 한쌍의 공급통로들 각각에 제공된 밸브판을, 콘크리트를 압송하기 위해 전후진하는 피스톤의 작동과 연동되게 피스톤로드에 연결된 커넥팅부재에 의해 회전되는 회전축에 설치하여 피스톤의 전진과 후진시에 밸브판이 폐쇄 및 개방됨으로써, 보수유지 비용을 크게 감소시킬 수 있으며, 호퍼의 공급통로를 개폐하는 밸브판들을 피스톤에 기계적으로 연결되어 작동시킴으로써 고가의 실린더와 제어장치가 필요없게 되므로 펌프장치의 제조비용을 크게 저감시킬 수 있는 효과가 있다.The valve plate provided in each of the pair of supply passages formed at the lower end of the hopper according to the present invention is installed on the rotating shaft rotated by the connecting member connected to the piston rod so as to be interlocked with the operation of the piston moving forward and backward to pressurize the concrete. Since the valve plate is closed and opened during forward and backward movement, maintenance cost can be greatly reduced, and the valve plates that open and close the supply path of the hopper are mechanically connected to the piston to operate, eliminating the need for expensive cylinders and control devices. There is an effect that can greatly reduce the manufacturing cost of the pump device.

도 1은 본 발명의 콘크리트 펌프장치에서 일측의 피스톤이 전진하여 콘크리트를 압송하며 호퍼 하단부의 공급통로를 폐쇄하도록 밸브판이 닫힌 한편, 타측의 피스톤은 후퇴하여 호퍼 하단부의 공급통로를 통해 콘크리트가 유입되게 밸브판이 개방된 상태를 보여주는 개략적인 사시도.
도 2는 도 1에서 콘트리트를 압송하기 위해 일측의 피스톤의 전진시 호퍼 하단부의 공급통로용 밸브판이 닫힌 상태를 보여주는 개략적인 부분단면도.
도 3은 본 발명의 콘크리트 펌프장치에서 일측의 피스톤이 후퇴하여 콘크리트가 유입되게 호퍼 하단부의 공급통로를 개방하도록 밸브판이 개방된 한편, 타측의 피스톤은 전진하여 콘크리트를 압송하도록 호퍼 하단부의 공급통로를 폐쇄하도록 밸브판이 닫힌 상태를 보여주는 개략적인 사시도.
도 4는 도 3에서 콘트리트를 압송하기 위해 타측의 피스톤이 전진할 때 호퍼 하단부의 공급통로용 밸브판이 개방되어 콘크리트가 유입되는 상태를 보여주는 개략적인 부분단면도.FIG. 1 shows that in the concrete pump device of the present invention, the valve plate is closed so that a piston on one side advances to pressurize concrete and closes the supply passage at the lower end of the hopper, while the piston on the other side retreats to allow concrete to flow through the supply passage at the lower end of the hopper. A schematic perspective view showing the valve plate in an open state.
FIG. 2 is a schematic partial cross-sectional view showing a state in which a valve plate for a supply passage at a lower end of a hopper is closed when a piston on one side of the piston advances to pressurize concrete in FIG. 1.
3 is a valve plate opened to open the supply passage at the lower end of the hopper so that the piston on one side of the concrete pump device of the present invention retreats and the concrete flows in, while the piston at the other side advances and opens the supply passage at the lower end of the hopper to pressurize the concrete. A schematic perspective view showing the valve plate closed to close it.
4 is a schematic partial cross-sectional view showing a state in which the valve plate for the supply passage at the lower end of the hopper is opened when the piston on the other side advances to pressurize the concrete in FIG.

이하에서는 본 발명의 실시예를 도시한 첨부 도면을 참고하여 본 발명을 보다 상세히 설명하기로 한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the present invention.

도 1과 2에 있어서, 본 발명에 의한 콘크리트 펌프장치는 레미콘 차량으로 부터 미리 반죽된 상태의 미경화 콘크리트를 수용하며 하단부에 형성된 두개의 토출공들을 개폐하도록 밸브판(12,13)들이 제공된 호퍼(1), 콘크리트를 압송하기 위한 두개의 이격되어 배치된 실린더(2,3), 상기 실린더(2,3)들 각각의 앞쪽에 연결되고 내부에 피스톤로드(21,31)들의 단부에 제공된 피스톤(22,32)들을 이동가능하게 수용하며 피스톤의 앞쪽으로 콘크리트가 유입되는 공급관(2',3') 및 피스톤(22,32)들 각각의 전진 또는 후진에 연동하여 상기 호퍼(1)의 토출공을 개폐시키도록 피스톤로드들 각각에 일단부가 연결되고 타단부는 밸브판(12,13)들을 개폐 위치로 각각 회동시키는 기계식의 작동수단(5)을 포함한다.In Figures 1 and 2, the concrete pump device according to the present invention is a hopper provided with valve plates 12 and 13 to open and close the two discharge holes formed at the lower end and accommodate uncured concrete in a state kneaded from a ready-mixed concrete vehicle. (1), two spaced apart cylinders (2,3) for pressurizing concrete, a piston connected to the front of each of the cylinders (2,3) and provided at the ends of the piston rods (21,31) inside The hopper 1 is discharged by interlocking with the supply pipe (2', 3') through which concrete flows into the front of the piston and the forward or backward movement of the pistons (22, 32). One end is connected to each of the piston rods to open and close the ball, and the other end includes a mechanical operation means 5 for rotating the valve plates 12 and 13 to the open/close position, respectively.

상기 공급관(2',3')들 각각에는 외측부에 길이방향으로 절개되어 형성된 가이드홀(23,33)이 형성되어 있다. Each of the supply pipes 2 ′ and 3 ′ has guide holes 23 and 33 formed at an outer portion thereof by being cut in the longitudinal direction.

상기 작동수단(5)은 공급관(2',3')들 각각의 측부에 길이방향으로 형성된 절개공(23)들을 통해 피스톤로드(22,32)들에 연결부재(52)로 일단부가 연결된 작동로드(51)와, 상기 작동로드의 타단부에 연결되고 밸브판(12,13)들에 연결된 회전축의 양측 단부에 연결된 링크부재(53)들을 포함한다. 상기 밸브판(12,13)들이 고정된 각각의 회전축들은 서로에 대하여 자유로이 회전될 수 있게 대향측 단부들이 공통의 베어링으로 지지되며, 반대쪽 단부들은 링크부재에 고정된다. 상기 밸브판(12,13)들은 각각 링크부재(53)에 의해 회전될 수 있게 공통의 지지 베어링(55)에서 자유로이 회전가능하게 지지되는 회전축(54,54')에 고정된다.The operation means (5) is operated with one end connected to the piston rods (22, 32) by a connecting member (52) through cutouts (23) formed in the longitudinal direction on each side of the supply pipes (2', 3') It includes a rod 51 and link members 53 connected to both ends of the rotating shaft connected to the other end of the actuating rod and connected to the valve plates 12 and 13. Each of the rotation shafts to which the valve plates 12 and 13 are fixed are supported by a common bearing at opposite ends so that they can freely rotate with respect to each other, and the opposite ends are fixed to the link member. The valve plates 12 and 13 are fixed to the rotation shafts 54 and 54' which are rotatably supported by a common support bearing 55 so that they can be rotated by the link member 53, respectively.

이로써, 도 1과 2에 도시된 바와 같이, 공급관(2')의 피스톤(22)이 전진된 위치에서는 공급관(2')에 유입된 콘크리트를 연결관(4)을 통해 압송하게 되며, 이때 작동로드(51)가 전진하여 링크부재(53)을 시계방향으로 회전시킴에 따라 밸브판(12)은 시계방향으로 회전하여 호퍼 하단의 토출공를 폐쇄하여 콘크리트가 피스톤에 의해 압송될 때에는 호퍼 하단부의 토출공는 닫힌 상태로 된다. Thus, as shown in Figs. 1 and 2, at the position where the piston 22 of the supply pipe 2'is advanced, the concrete flowing into the supply pipe 2'is pumped through the connection pipe 4, and at this time, it is operated. As the rod 51 advances and rotates the link member 53 clockwise, the valve plate 12 rotates clockwise to close the discharge hole at the bottom of the hopper, and when the concrete is pushed by the piston, the lower part of the hopper is discharged. The ball is closed.

이와 같이 일측 실린더의 피스톤(22)이 전진함과 동시에 타측 실린더의 피스톤(32)이 공급관(3')에서 후퇴함에 따라 그 피스톤로드에 연결된 작동로드(51)도 후퇴하면서 링크부재(53)와 함께 밸브판(13)을 반시계방향으로 회전시켜서 밸브판(13)을 호퍼 하단의 토출공를 개방하게 되어 호퍼로 부터 콘크리트가 공급관(3')으로 유입된다.In this way, as the piston 22 of one cylinder moves forward and the piston 32 of the other cylinder retreats from the supply pipe 3', the operating rod 51 connected to the piston rod also retreats while the link member 53 Together, the valve plate 13 is rotated counterclockwise to open the discharge hole at the bottom of the hopper so that concrete flows into the supply pipe 3'from the hopper.

그런 다음, 도 3과 4에 도시된 바와 같이, 도 1, 2의 상태와 반대로 일측의 공급관(2')의 피스톤(22)이 후퇴하면, 작동로드(51)도 후퇴하면서 링크부재(53)와 함께 밸브판(12)은 반시계방향으로 회전하여 호퍼 하단의 토출공를 개방함에 따라 호퍼로 부터 콘크리트가 공급관(2')으로 유입되는 반면, 타측의 공급관(3')에서 피스톤(32)이 후퇴하면서 링크부재(53)와 함께 밸브판(13)을 시계방향으로 회전시켜 호퍼 하단의 토출공를 폐쇄한 상태로 전진하는 피스톤(32)에 의해 공급관(3')에 유입된 콘크리트가 연결관(4)으로 압송된다. Then, as shown in Figs. 3 and 4, when the piston 22 of the supply pipe 2'on one side is retracted, contrary to the state of Figs. 1 and 2, the operating rod 51 is also retracted while the link member 53 Together with the valve plate 12 rotates counterclockwise to open the discharge hole at the bottom of the hopper, concrete flows from the hopper into the supply pipe 2', while the piston 32 in the supply pipe 3'on the other side The concrete flowing into the supply pipe 3'by the piston 32 advancing in a state in which the discharge hole at the bottom of the hopper is closed by rotating the valve plate 13 together with the link member 53 in a clockwise direction while retreating. It is sent to 4).

이와 같이, 양측 실린더(2,3)들 각각의 피스톤(2',3')들이 교대로 전진, 후퇴하면서 콘크리트를 연속하여 연결관(4)으로 압송하며, 상기 피스톤들 각각에 연결된 작동로드(51)들의 전진, 후퇴하면서 링크부재(53)에 연결된 밸브판(12,13)들도 교대로 호퍼(1) 하단부의 토출공들을 개폐하게 되어 호퍼로 부터 후퇴되는 피스톤의 공급관으로 콘크리트가 유입되는 한편, 전진하는 피스톤의 공급관에 연통되는 호퍼의 토출공는 밸브판에 의해 폐쇄된다.In this way, the pistons 2'and 3'of each of the cylinders 2 and 3 alternately advance and retreat to continuously press the concrete to the connection pipe 4, and the operating rods connected to each of the pistons ( As they advance and retreat, the valve plates 12 and 13 connected to the link member 53 alternately open and close the discharge holes at the lower end of the hopper 1, so that concrete flows into the supply pipe of the piston retreating from the hopper. On the other hand, the discharge hole of the hopper communicating with the supply pipe of the advancing piston is closed by the valve plate.

본 발명에 의한 작동수단(5)의 작동로드가 콘크리트 펌프장치의 두개의 실런더들에 제공된 피스톤로드들에 연결되어 피스톤들의 전진, 후진 동작에 연동하여 링크부재를 통해 호퍼 하단부에 형성된 두개의 토출공들을 폐쇄, 개방하게 되므로, 별도의 구동수단을 사용하지 않고도 호퍼로 부터 각각의 실린더들에 연결된 공급관(2',3')들중 어느 하나에서는 콘크리트를 압송하는 한편, 다른 하나에서는 호퍼로 부터 콘트리트가 유입되어 후속적인 콘크리트 압송이 준비된다.The operating rod of the operating means 5 according to the present invention is connected to the piston rods provided in the two cylinders of the concrete pump device and interlocks with the forward and backward motions of the pistons, and two discharges formed at the lower end of the hopper through the link member Since the balls are closed and opened, one of the supply pipes (2', 3') connected to each cylinder from the hopper does not use a separate driving means, while the concrete is pumped from the hopper, while the other The concrete is introduced and the concrete is ready for subsequent conveyance.

본 발명의 작동수단(5)에서 링크부재(53)와 연결되는 작동로드(51)의 단부에 장공(511)이 형성함으로써, 밸브판들의 개폐 위치로의 회전에 필요한 작동로드(51)의 이동거리 변화가 조정할 수 있게, 즉 이동거리 변화 차이를 흡수할 수 있도록 하는 것이 바람직하다. 상기 작동로드(51) 장공(511)의 후단부에 배치되는 링크부재(53)의 위치는 밸브판(12)이 완전히 폐쇄되는 위치에 대응되며, 장공(511)의 선단부에 배치되는 링크부재(53)의 위치는 밸브판(13)이 완전히 개방되는 위치에 대응된다.By forming a long hole 511 at the end of the operation rod 51 connected to the link member 53 in the operation means 5 of the present invention, the movement of the operation rod 51 required for rotation of the valve plates to the open/close position It is desirable to allow the distance change to be adjustable, that is, to absorb the difference in travel distance change. The position of the link member 53 disposed at the rear end of the long hole 511 of the operation rod 51 corresponds to a position at which the valve plate 12 is completely closed, and a link member disposed at the front end of the long hole 511 ( The position of 53) corresponds to the position in which the valve plate 13 is fully opened.

본 발명에 의한 작동수단(5)은 피스톤로드에 연결되어 피스톤의 전후진 동작에 연동하여 기계식으로 밸브판(12.13)들을 갭폐하여 호퍼 하단부의 토출공들을 개폐할 수 있게 되므로, 종래 별도의 유압에 의한 구동수단과 제어부를 채용하는 구성과 비교하여 제조비용을 절감할 수 있고, 사용에 따른 고장발생이 적어 유지보수 비용도 절감할 수 있게 된다.The operating means 5 according to the present invention is connected to the piston rod and can mechanically close the valve plates 12.13 in conjunction with the forward and backward motion of the piston to open and close the discharge holes at the lower end of the hopper. Compared with a configuration employing a driving means and a control unit, manufacturing cost can be reduced, and there are fewer failures caused by use, so that maintenance cost can be reduced.

본 발명은 콘크리트 펌프카에서 콘크리트를 높은 곳의 공사 현장으로 압송하는 콘크리트 펌프장치에 이용될 수 있다.The present invention can be used in a concrete pump device for pumping concrete from a concrete pump car to a construction site at a high place.

1 : 호퍼 2,3 : 실린더
2',3' : 공급관 5 : 작동수단
12,13 : 밸브판 21,31 : 피스톤로드
22,32 : 피스톤 23 ; 절개공
51 : 작동로드 52 : 연결부재
53 : 링크부재 54,54' : 회전축
511 : 장공1: hopper 2,3: cylinder
2',3': supply pipe 5: operating means
12,13: valve plate 21,31: piston rod
22,32: piston 23; Incision
51: operating rod 52: connecting member
53: link member 54,54': rotating shaft
511: long ball

Claims (5)

삭제delete 미경화 콘크리트를 수용하며 하단부에 형성된 두개의 토출용 토출공들을 개폐하도록 밸브판(12,13)들이 제공된 호퍼(1), 콘크리트를 압송하기 위한 두개의 이격되어 배치된 실린더(2,3), 상기 실린더(2,3)들 각각의 앞쪽에 연결되고 내부에 피스톤로드(21,31)들의 단부에 제공된 피스톤(22,32)들을 이동가능하게 수용하며 피스톤의 앞쪽으로 콘크리트가 유입되는 공급관(2',3') 및 상기 밸브판(12,13)들을 개폐 위치로 각각 회동시키는 작동수단(5)을 구비하는 콘크리트 펌프장치에 있어서,
상기 작동수단(5)은 기계식으로 피스톤(22,32)들 각각의 전진 또는 후진에 연동하여 상기 호퍼(1)의 토출공을 개폐시키도록 피스톤로드(21,31)들 각각에 일단부가 연결되고 타단부는 밸브판(12,13)들에 연결되어 상기 밸브판들을 개폐 위치로 각각 회동시키도록 되고,
상기 작동수단(5)은 공급관(2',3')들 각각의 측부에 길이방향으로 형성된 절개공(23)들을 통해 피스톤로드(22,32)들 각각에 연결부재(52)로 일단부가 연결된 작동로드(51)를 포함하는 것을 특징으로 하는 콘크리트 펌프장치.
A hopper (1) provided with valve plates (12, 13) to open and close the two discharge holes formed at the lower end of the uncured concrete, two spaced apart cylinders (2, 3) for conveying concrete, A supply pipe (2) connected to the front of each of the cylinders (2, 3), receiving the pistons (22, 32) provided at the ends of the piston rods (21, 31) movably therein, and flowing concrete into the front of the piston (2) In the concrete pump device having', 3') and an operation means (5) for rotating the valve plates (12, 13) to the open/close position respectively,
The operating means (5) is mechanically linked to each of the pistons (22, 32) forward or backward, and one end is connected to each of the piston rods (21, 31) so as to open and close the discharge hole of the hopper (1). The other end is connected to the valve plates 12 and 13 to rotate the valve plates to the open/close position respectively,
The operating means (5) is connected to each of the piston rods (22, 32) through the cutouts (23) formed in the longitudinal direction on the side of each of the supply pipes (2', 3') by a connecting member (52). Concrete pump device, characterized in that it comprises an operating rod (51).
제 2항에 있어서,
상기 작동로드(51)의 타단부에는 링크부재(53)가 연결되고, 상기 링크부재의 상단은 밸브판(12,13)들 각각에 연결된 회전축의 양측 단부에 연결되어 작동로드의 전후진에 연동되어 링크부재(53)를 정역회전시켜 링크부재들에 각각 축이 연결된 밸브판(12,13)들을 개폐시키도록 된 것을 특징으로 하는 콘크리트 펌프장치.
The method of claim 2,
A link member 53 is connected to the other end of the actuating rod 51, and the upper end of the link member is connected to both ends of the rotation shaft connected to each of the valve plates 12 and 13 to interlock with the forward and backward movement of the actuating rod. The concrete pump device, characterized in that the link member 53 is rotated forward and backward to open and close the valve plates 12 and 13 respectively connected to the link members.
제 3항에 있어서,
상기 밸브판(12,13)들이 고정된 각각의 회전축(54,54')들은 서로에 대하여 자유로이 회전될 수 있게 대향측 단부들이 공통의 베어링으로 지지되며, 반대쪽 단부들은 링크부재들 각각에 고정된 것을 특징으로 하는 콘크리트 펌프장치.
The method of claim 3,
Each of the rotation shafts 54 and 54 ′ to which the valve plates 12 and 13 are fixed are supported by a common bearing at opposite ends so that they can freely rotate with respect to each other, and the opposite ends are fixed to each of the link members. Concrete pump device, characterized in that.
제 3항에 있어서,
상기 작동수단(5)에서 링크부재(53)는 작동로드(51)의 단부에 형성된 장공(511)에서 이동가능하게 연결되어 밸브판들의 개폐 위치로의 회전에 필요한 작동로드(51)의 이동거리 변화 차이를 흡수하도록 된 것을 특징으로 하는 콘크리트 펌프장치. The method of claim 3,
In the operating means (5), the link member (53) is movably connected in a long hole (511) formed at the end of the operating rod (51), and the moving distance of the operating rod (51) required for rotation of the valve plates to the opening and closing position Concrete pump device, characterized in that to absorb the difference in change.
KR1020200055730A 2020-05-11 2020-05-11 A concrete pump system KR102143734B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114382673A (en) * 2021-12-31 2022-04-22 河南和远机械科技有限公司 Hopper cavity prevention device of concrete wet spraying machine
CN114790826A (en) * 2021-01-25 2022-07-26 三一汽车制造有限公司 Gate valve pumping mechanism and concrete conveying equipment

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KR840000038Y1 (en) * 1982-07-13 1984-01-25 삼성중공업주식회사 Concrete pump valve
KR960008044A (en) 1994-08-06 1996-03-22 최광수 Concrete pump
KR19980021713U (en) * 1996-10-22 1998-07-15 신일현 Sliding Retractable Plunger Pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR840000038Y1 (en) * 1982-07-13 1984-01-25 삼성중공업주식회사 Concrete pump valve
KR960008044A (en) 1994-08-06 1996-03-22 최광수 Concrete pump
KR19980021713U (en) * 1996-10-22 1998-07-15 신일현 Sliding Retractable Plunger Pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114790826A (en) * 2021-01-25 2022-07-26 三一汽车制造有限公司 Gate valve pumping mechanism and concrete conveying equipment
CN114790826B (en) * 2021-01-25 2023-09-12 三一汽车制造有限公司 Gate valve pumping mechanism and concrete conveying equipment
CN114382673A (en) * 2021-12-31 2022-04-22 河南和远机械科技有限公司 Hopper cavity prevention device of concrete wet spraying machine

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