WO2013082909A1 - Pompe à mortier du type à piston et son système de pompage - Google Patents

Pompe à mortier du type à piston et son système de pompage Download PDF

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Publication number
WO2013082909A1
WO2013082909A1 PCT/CN2012/074046 CN2012074046W WO2013082909A1 WO 2013082909 A1 WO2013082909 A1 WO 2013082909A1 CN 2012074046 W CN2012074046 W CN 2012074046W WO 2013082909 A1 WO2013082909 A1 WO 2013082909A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
pumping system
cylinder
chamber
mortar pump
Prior art date
Application number
PCT/CN2012/074046
Other languages
English (en)
Chinese (zh)
Inventor
郑云
杨鑫
夏凌枫
Original Assignee
湖南三一智能控制设备有限公司
三一重工股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖南三一智能控制设备有限公司, 三一重工股份有限公司 filed Critical 湖南三一智能控制设备有限公司
Publication of WO2013082909A1 publication Critical patent/WO2013082909A1/fr

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Classifications

    • 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
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • 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

Definitions

  • Piston type mortar pump and pumping system The present application claims to be Chinese patent issued on December 5, 2011, the application number is 201110399119.7, and the invention name is "a piston type mortar pump and its pumping system" Priority of the application, the entire contents of which are incorporated herein by reference.
  • the invention relates to the technical field of construction machinery, and in particular to a pumping system for a piston type mortar pump.
  • the invention also relates to a piston type mortar pump comprising the above described pumping system.
  • Figure 1 is a schematic view showing the structure of a pumping system in a typical piston mortar pump.
  • the pumping system includes a main cylinder 12 having a main piston therein, the delivery piston is located in the delivery cylinder 14, and the delivery piston is coupled to the main piston through the piston rod and is capable of being disposed within the delivery cylinder 14.
  • the conveying cylinder 14 is mounted on the chassis of the piston mortar pump through the mounting frame 15; the end of the conveying cylinder 14 has a ball valve chamber 16, the ball valve chamber 16 is provided with a discharge ball valve and a suction ball valve, and the ball valve chamber 16 is discharged through the discharge.
  • the ball valve is selectively in communication with a discharge port 17 that is selectively in communication with the suction port 18 via a suction ball valve.
  • this kind of pumping system can not discharge during the process of sucking, and can not absorb the material during the discharging process, and can not realize the simultaneous discharge of the material, and the return time of the piston is long, and the continuous pump cannot be realized. Send, affect the working continuity of the piston mortar pump.
  • the object of the present invention is to provide a pumping system for a piston type mortar pump, which can simultaneously discharge materials during the suction process, thereby improving the pumping continuity of the pumping system and ensuring the piston type.
  • the continuous operation of the mortar pump further improves the performance of the piston mortar pump.
  • Another object of the present invention is to provide a piston type mortar pump including the above pumping system.
  • the present invention provides a pumping system for a piston type mortar pump, comprising a delivery cylinder having a delivery piston and a piston rod, the piston rod being coupled to a power unit of the pumping system, the conveying
  • the rodless cavity of the cylinder communicates with the feed port through the feed check valve, and further includes a compensation cylinder with a compensation piston, the compensation piston separating the compensation cylinder into a discharge chamber and a buffer chamber, the discharge chamber
  • the rodless cavity of the delivery cylinder communicates with the discharge chamber through a discharge check valve
  • the buffer cavity communicates with the rod cavity of the delivery cylinder to form a closed cavity.
  • the buffer chamber and the closed cavity formed by the rod cavity are filled with a pressure buffering buffer.
  • the pressure transmitting buffer medium is water.
  • the discharge opening is provided at the end of the discharge chamber.
  • the discharge opening is tapered in the discharge direction.
  • the feed check valve and the discharge check valve are ball valves.
  • a sealing member is mounted between the compensation cylinder and the compensation piston, between the delivery cylinder and the delivery piston.
  • the buffer chamber is in communication with a tail portion of the rod chamber of the delivery cylinder.
  • the power device of the pumping system is a power cylinder, and the piston is fixedly connected to the power piston of the power cylinder.
  • a first proximity switch and a second proximity switch are disposed along the telescopic direction of the power cylinder, and the two proximity switches are respectively located at extreme positions of the reciprocating motion of the power piston.
  • the present invention also provides a piston type mortar pump comprising a chassis and a pumping system mounted on the chassis, the pumping system being a pumping system as described above.
  • the power device drives the conveying piston to move in the direction of the rod cavity of the conveying cylinder, the pressure in the rodless chamber of the conveying cylinder is reduced, and the rod chamber of the conveying cylinder is reduced.
  • the pressure inside is increased, and the feed check valve is opened under the negative pressure of the rodless chamber.
  • the discharge check valve is closed, and the material is sucked into the rodless cavity of the delivery cylinder through the feed port, and at the same time, under the action of the positive pressure of the rod cavity of the delivery cylinder, the compensation piston moves to the side of the discharge chamber.
  • the power unit drives the conveying piston to move in the direction of the rodless cavity of the conveying cylinder, the pressure in the rodless chamber of the conveying cylinder increases, and the rod chamber pressure decreases, under the action of the positive pressure of the rodless chamber.
  • the feed check valve is closed, the discharge check valve is opened, the material in the rodless cavity of the transfer cylinder enters the discharge chamber of the compensation cylinder, and at the same time, the negative pressure of the rod chamber in the delivery cylinder and the material are given to the compensation piston
  • the compensation piston moves to the side of the buffer chamber; because the delivery cylinder has the piston rod in the rod cavity, when the delivery piston is in motion, the volume of the rodless chamber and the rod chamber of the delivery cylinder There is a certain difference in the amount of change, and the buffer chamber communicates with the rod cavity of the delivery cylinder to form a volume of the closed cavity. Therefore, a part of the mortar discharged from the delivery cylinder is stored in the discharge cavity of the compensation cylinder.
  • the other part is discharged through the discharge port, and the amount of discharged material is approximately equal to the volume of the piston rod that protrudes into the rod cavity.
  • the conveying piston is reversed, and the pressure of the rod chamber is increased, thereby pushing the compensating piston to move toward the discharge opening, and discharging the material stored in the discharge chamber of the compensation cylinder.
  • the pumping system can simultaneously discharge the material during the suction process, thereby improving the pumping continuity of the pumping system and ensuring Continuous operation of the piston mortar pump.
  • the hydraulic driving method makes the discharge pressure of the compensating piston change according to the change of the conveying load, so that the compensation function can be realized normally under the condition that the load frequently changes, thereby improving the working performance of the piston mortar pump.
  • the pumping system of the present invention has a buffer chamber, a first connecting tube, and a rod chamber of the delivery cylinder filled with a pressure transmitting buffer medium.
  • These pressure-absorbing buffer media are capable of transmitting pressure and buffering the large pressure during the suction and discharge process to protect the compensating piston.
  • these pressure-absorbing buffer media have the function of lubricating the piston and dissipating the heat generated by the piston during the reciprocating motion.
  • Figure 1 is a schematic view showing the structure of a pumping system in a typical piston type mortar pump
  • Figure 2 is a perspective view of a specific embodiment of a pumping system for a piston type mortar pump according to the present invention
  • Figure 3 is a schematic structural view of the pumping system of Figure 2 in a front view; 4 is a schematic structural view of the AA direction of FIG. 3.
  • the core of the invention is to provide a pumping system for a piston type mortar pump, which can simultaneously discharge materials during the suction process, thereby improving the pumping continuity of the pumping system and ensuring the piston.
  • the continuous operation of the mortar pump improves the performance of the piston mortar pump.
  • Another core of the present invention is to provide a piston type mortar pump including the above described pumping system.
  • FIG. 2 is a perspective view of a specific embodiment of a pumping system for a piston type mortar pump according to the present invention
  • FIG. 3 is a front view of the pumping system of FIG. Schematic diagram of the direction of the structure
  • FIG. 4 is a schematic structural view of the AA direction of FIG.
  • the pumping system provided by the present invention is used in a piston type mortar pump, and the pumping system is mounted on a chassis of the piston type mortar pump, including a power unit and a delivery cylinder 3, and a power unit.
  • the power cylinder 2 the power device can also be other mechanical forms such as a crank linkage mechanism.
  • a power piston 21 is disposed in the power cylinder 2, and a delivery piston 31 is disposed in the delivery cylinder 3.
  • the power piston 21 is fixedly connected to the delivery piston 31 through a piston rod, and the delivery piston 31 divides the delivery cylinder 3 into a rod cavity 32 and a rodless rod. Cavity 33.
  • the pressure oil in the external power source is pumped to the power cylinder 2, and the power piston 21 reciprocates in the axial direction of the power cylinder 2 under the action of the pressure oil.
  • the end of the rodless cavity 33 of the delivery cylinder 3 forms a ball valve chamber 4, which is a cavity whose inner cross-sectional area is larger than the outlet cross-sectional area in the same direction, and the ball valve chamber 4 has a feed check valve 41 and a one-way valve 42, wherein the feed check valve 41 is located at a position of the ball valve chamber 4 near the feed port 102, and the discharge check valve 42 is located at a position of the ball valve chamber 4 near the discharge port 101;
  • the discharge check valve may be a ball valve, and the feed check valve 41 is disposed below the discharge check valve 42.
  • the pumping system further includes a compensation cylinder 5, and the compensation cylinder 5 is provided with a compensation piston 51.
  • the compensation piston 51 divides the compensation cylinder 5 into a discharge chamber 52 and a buffer chamber 53, and the discharge chamber 52 communicates with the discharge port 101.
  • the rodless chamber 33 of the delivery cylinder 3 passes through the discharge check valve 42 and the discharge chamber. 52 is connected, and the buffer chamber 53 communicates with the rod cavity 32 of the delivery cylinder 3 to form a closed cavity.
  • the buffer chamber 53 can communicate with the tail portion of the rod chamber 32 of the delivery cylinder 3, so that the delivery piston 31 can be moved to the tail of the delivery cylinder 3 during the suction process, thereby increasing the movement stroke of the delivery piston 31.
  • the tail of the rod cavity 32 means conveying
  • the cylinder 3 is axially away from one end of the discharge port 101.
  • the buffer chamber 53 is not limited to be in communication with the tail portion of the rod chamber 32 of the delivery cylinder 3, but may also be in communication with the central portion of the delivery cylinder 3. At this time, in order to ensure the formation of the sealed chamber, it is necessary to lengthen the length of the delivery cylinder 3 to achieve The pumping amount of the above structure is the same.
  • the discharge port 101 is disposed at the end of the discharge chamber 52, and the buffer chamber 53 and the rod chamber of the delivery cylinder 3
  • the end of the rodless chamber 33 is the end of the rodless chamber 33 remote from the rod chamber 32.
  • the pumping system provided by the invention can be mounted on the chassis through the mounting bracket 9 or directly on the chassis; the pumping system can be detachably mounted on the chassis by bolting or the like, or can be used in the field. Other commonly used fixed connection methods, such as welding.
  • the power unit drives the conveying piston 31 to move toward the rod chamber 32 of the conveying cylinder 3, and the pressure in the rodless chamber 33 of the conveying cylinder 3 is reduced, and the conveying is performed.
  • the pressure of the rod chamber 32 of the cylinder 3 is increased.
  • the feed check valve 41 is opened, the discharge check valve 42 is closed, and the material is sucked into the delivery cylinder 3 through the feed port 102.
  • the compensating piston 51 moves to the side of the discharge chamber 52.
  • the power unit drives the delivery piston 31 to move toward the rodless chamber 33 of the delivery cylinder 3, the pressure in the rodless chamber 33 of the delivery cylinder 3 increases, and the pressure in the rod chamber 32 decreases, in the rodless chamber.
  • the feed check valve 41 is closed, the discharge check valve 42 is opened, and the material in the rodless chamber 33 of the transfer cylinder 3 enters the discharge chamber 52 of the compensation cylinder 5, and at the same time,
  • the buffer chamber 53 has a rod with the conveying cylinder 3
  • a part of the mortar discharged from the transfer cylinder 3 is stored in the compensation cylinder 5, and the other part is discharged through the discharge port 101, and the amount of discharged material is substantially equal to that extending into the rod cavity.
  • the volume of the piston rod in 32 When the pumping system continues to suck, the conveying piston is reversed, and the pressure of the rod cylinder is increased, thereby pushing the compensating piston to move toward the discharge opening, and discharging the material stored in the compensation cylinder.
  • the material stored in the compensation cylinder passes through the discharge port.
  • the pumping system can simultaneously discharge the material during the suction process, thereby improving the pumping continuity of the pumping system and ensuring the continuous operation of the piston mortar pump.
  • the hydraulic driving mode is adopted, so that the discharge pressure of the compensating piston 51 can be changed according to the change of the conveying load, so that the compensation function can be normally realized under the condition that the load frequently changes, thereby improving the working performance of the piston mortar pump. .
  • the buffer chamber 53 of the compensating cylinder 5 and the rod chamber 32 of the transfer cylinder 3 may communicate with each other through the first connecting pipe 6. In this way, it is not necessary to machine the connection structure on the compensation cylinder 5 or the cylinder of the delivery cylinder 3, which reduces the processing difficulty of the cylinder; meanwhile, since the length of the first connection pipe 6 can be determined as needed, the compensation cylinder 5 and the transportation are made.
  • the distance between the cylinders 3 is not limited.
  • the first connecting pipe 6 may be a straight pipe or a curved pipe, and the specific structural shape thereof may be determined according to the use requirements.
  • the first connecting pipe 6 may be of a length-adjustable structure, for example in the form of a casing or a material that can be bent, in order to adjust the first connection according to the distance and positional relationship between the compensating cylinder 5 and the conveying cylinder 3.
  • the tube 6 is in an optimally connected state, improving the applicability of the first connecting pipe 6.
  • the material of the first connecting pipe 6 may be various metal materials or rubber materials or the like.
  • the discharge chamber 52 of the compensating cylinder 5 and the ball valve chamber 4 can communicate with each other through the second connecting pipe 7. Since the use of the first connecting pipe 6 and the second connecting pipe 7 are both connecting the two cavities, the selection of the structure, shape and the like of the second connecting pipe 7 can refer to the relevant content of the first connecting pipe 6 described above. This will not be repeated here.
  • first connecting pipe 6 and the second connecting pipe 7 are not relevant, that is, the second connecting pipe 7 may be used when the first connecting pipe 6 is used, or the second connecting pipe may not be used. 7, the use of the two is independent.
  • the pumping system provided by the present invention has a buffer chamber 53, a first connecting tube 6 and a rod chamber 32 of the conveying cylinder 3 filled with a pressure-absorbing buffer medium; when the first connecting tube 6 is not provided, the buffer chamber 53 and the conveying cylinder The rod chamber 32 of 3 is connected to form a closed chamber filled with a pressure transmitting buffer medium. These pressures are slow.
  • the blasting medium is capable of transmitting pressure and buffering a large pressure during the suction and discharge process to protect the compensating piston 51.
  • the pressure transmitting buffer medium has the function of lubricating the piston and dissipating the heat generated by the piston during the reciprocating motion.
  • the pressure transmitting buffer medium may be water. Water as a pressure transmitting medium can transmit pressure better, and the cost is low, and it can be reused. Obviously, the pressure-transfer buffer medium is not limited to water, and may be other liquid or gas medium capable of transmitting pressure, such as air or hydraulic oil.
  • the above sealing member 8 is a variety of sealing members conventionally used in the art.
  • the discharge port 101 of the pumping system provided by the present invention may be disposed at the end of the discharge chamber 52.
  • the discharge port 101 is tapered along the discharge direction, that is, along the axial direction of the compensation cylinder 5, and the inner diameter of the discharge port 101 near the compensation piston 51 is larger than the inner diameter of the compensation piston 51.
  • the tapered discharge port 101 has a certain throttle retention function, which improves the ability of the compensation cylinder 5 to store materials.
  • a first proximity switch 91 and a second proximity switch 92 may be disposed along the telescopic direction of the power cylinder 2, and the two proximity switches are respectively located at the limit positions of the reciprocating motion of the power piston 21, so that the commutation of the cylinder is realized by the proximity switch.
  • the impact of the power cylinder 2 during the commutation process is effectively reduced, and the commutation stability of the power cylinder 2 is improved.
  • the first proximity switch 91 and the second proximity switch 92 described above can be mounted at corresponding positions of the mounting bracket 9.
  • the first proximity switch 91 and the second proximity switch 92 may be various light sensors or displacement sensors or the like which are conventionally used in the art.
  • the pumping system provided by the present invention may also include a variable displacement pump to achieve stepless adjustment of the pumping displacement.
  • a variable displacement pump to achieve stepless adjustment of the pumping displacement.
  • it is not limited to the stepless adjustment of the pumping displacement in the form of a variable pump, and the stepless adjustment of the pumping displacement can be realized by using a quantitative pump plus a speed regulating valve.
  • the present invention also provides a piston type slurry pump including the above-mentioned pumping system.
  • a piston type slurry pump including the above-mentioned pumping system.
  • the pumping system provided by the present invention is used for a piston type mortar pump.
  • Pumping system therefore, the materials described in the text generally refer to mortar or concrete, and of course, the possibility of being discharged into other types of materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention concerne un système de pompage d'une pompe à mortier du type à piston. Le système de pompage comprend un cylindre de distribution (3) doté d'un piston de distribution (31) et dans lequel est disposée une tige de piston, la tige de piston étant raccordée à un appareil électrique du système de pompage, et une chambre sans tige (33) du cylindre de distribution (3) étant en communication avec une entrée de matériau (102) par le biais d'une soupape d'admission unidirectionnelle (41). Le système de pompage comprend également un cylindre de compensation (5) dans lequel est disposé un piston de compensation (51), le piston de compensation (51) séparant le cylindre de compensation (5) en une chambre d'alimentation extérieure (52) et en une chambre tampon (53), la chambre d'alimentation extérieure (52) étant en communication avec la sortie de matériau (101), la chambre sans tige (33) du cylindre de distribution (3) étant en communication avec la chambre d'alimentation extérieure (52) par le biais d'une soupape d'alimentation extérieure unidirectionnelle (42), et la chambre tampon (53) étant en communication avec une chambre de tige (32) du cylindre de distribution (3) pour former une chambre étanchéifiée. De cette façon, lorsque le cylindre de distribution (3) se situe dans une course d'admission de matériau, la matière stockée dans le cylindre de compensation (5) est évacuée par la sortie de matériau (101), ainsi, tout en recueillant le matériau, le système de pompage peut évacuer le matériau, ce qui permet d'améliorer la continuité de pompage du système de pompage et de garantir le fonctionnement continu de la pompe à mortier du type à piston.
PCT/CN2012/074046 2011-12-05 2012-04-14 Pompe à mortier du type à piston et son système de pompage WO2013082909A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110399119.7A CN102434421B (zh) 2011-12-05 2011-12-05 一种活塞式砂浆泵及其泵送系统
CN201110399119.7 2011-12-05

Publications (1)

Publication Number Publication Date
WO2013082909A1 true WO2013082909A1 (fr) 2013-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/074046 WO2013082909A1 (fr) 2011-12-05 2012-04-14 Pompe à mortier du type à piston et son système de pompage

Country Status (2)

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CN (1) CN102434421B (fr)
WO (1) WO2013082909A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062006B (zh) * 2012-12-19 2015-10-14 三一汽车制造有限公司 一种双缸活塞式砂浆泵
CN106545483B (zh) * 2016-11-03 2019-12-20 中国建筑科学研究院建筑机械化研究分院 具有缓冲功能的s阀泵及其缓冲方法
CN117680300B (zh) * 2024-02-02 2024-04-30 启东达沃克工具有限公司 一种用于喷涂机的进料出料一体式装置

Citations (5)

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DE3834451A1 (de) * 1988-10-10 1990-04-19 Petz Alfons Dipl Ing Fh Dickstoffpumpe
CN2151272Y (zh) * 1992-07-31 1993-12-29 天津理工学院 单缸双作用式液压泥浆泵
DE29708682U1 (de) * 1997-05-07 1997-07-10 Huang Yu Lin Vorrichtung zum Fördern von Schlamm
CN1492968A (zh) * 2001-08-22 2004-04-28 ��ˢʦ�ɷݹ�˾ 控制泥浆泵的方法
CN201433869Y (zh) * 2009-06-16 2010-03-31 郑州知信机电科技开发有限公司 一种压力可控砂浆泵

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JP2895322B2 (ja) * 1992-07-21 1999-05-24 三菱重工業株式会社 コンクリートポンプの残留コンクリート処理方法
KR100606203B1 (ko) * 2004-04-19 2006-07-31 주식회사 디앤에스 펌프카의 콘크리트 압송변환시스템
DE102005024174A1 (de) * 2005-05-23 2006-12-07 Schwing, Friedrich, Dipl.-Ing. Verfahren zum Steuern einer Pumpvorrichtung zur Förderung breiiger Massen sowie Steuerung einer Pumpvorrichtung zur Förderung breiiger Massen
CN201377400Y (zh) * 2009-04-10 2010-01-06 白俊生 豆石、砂浆泵
CN101576076A (zh) * 2009-06-10 2009-11-11 王泽文 S管阀摆动式油缸驱动构造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3834451A1 (de) * 1988-10-10 1990-04-19 Petz Alfons Dipl Ing Fh Dickstoffpumpe
CN2151272Y (zh) * 1992-07-31 1993-12-29 天津理工学院 单缸双作用式液压泥浆泵
DE29708682U1 (de) * 1997-05-07 1997-07-10 Huang Yu Lin Vorrichtung zum Fördern von Schlamm
CN1492968A (zh) * 2001-08-22 2004-04-28 ��ˢʦ�ɷݹ�˾ 控制泥浆泵的方法
CN201433869Y (zh) * 2009-06-16 2010-03-31 郑州知信机电科技开发有限公司 一种压力可控砂浆泵

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CN102434421B (zh) 2014-02-26
CN102434421A (zh) 2012-05-02

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