CN105952607B - A kind of Large flow pump of hydraulic-driven - Google Patents
A kind of Large flow pump of hydraulic-driven Download PDFInfo
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- CN105952607B CN105952607B CN201610332071.0A CN201610332071A CN105952607B CN 105952607 B CN105952607 B CN 105952607B CN 201610332071 A CN201610332071 A CN 201610332071A CN 105952607 B CN105952607 B CN 105952607B
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- 239000007788 liquid Substances 0.000 claims abstract description 103
- 239000012530 fluid Substances 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 2
- 239000002828 fuel tank Substances 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
- 238000009826 distribution Methods 0.000 description 12
- 239000003921 oil Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 7
- 239000010727 cylinder oil Substances 0.000 description 6
- 230000006698 induction Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000001750 Endoleak Diseases 0.000 description 1
- 206010064396 Stent-graft endoleak Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
Classifications
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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
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- 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
- 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
- F04B9/105—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 reciprocating movement of the pumping member being obtained by a double-acting liquid motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
Abstract
本发明公开了一种液压驱动的大流量计量泵，包括液力端、动力端和支撑组件三部分，所述液力端为一个单缸双作用泵，所述动力端为一个双作用活塞缸，所述动力端包括依次连接的液压缸、换向阀、伺服调速阀、液压泵和油箱，所述伺服调速阀与液压泵之间的连接管路还与一个安全阀连接，所述液压缸的活塞杆与液力端的计量泵活塞杆通过刚性联轴器连接从而使得液压缸与液力端同步运动，所述液力端与动力端均固定在支撑组件上。本发明用液压系统直接驱动液力端实现液体的连续吸排，满足了现有过程工业需要大范围流量调节并输送液体的需要，计量精度高且方便，并可实现实时流量调节，控制计量速度。
The invention discloses a hydraulically driven large-flow metering pump, which includes three parts: a fluid end, a power end and a support assembly. The fluid end is a single-cylinder double-acting pump, and the power end is a double-acting piston cylinder. , the power end includes a hydraulic cylinder, a reversing valve, a servo speed regulating valve, a hydraulic pump and an oil tank connected in sequence, and the connecting pipeline between the servo speed regulating valve and the hydraulic pump is also connected with a safety valve, and the The piston rod of the hydraulic cylinder is connected to the piston rod of the metering pump at the liquid end through a rigid coupling so that the hydraulic cylinder and the liquid end move synchronously, and both the liquid end and the power end are fixed on the support assembly. The invention uses a hydraulic system to directly drive the hydraulic end to realize continuous suction and discharge of liquid, which meets the needs of the existing process industry for large-scale flow regulation and liquid delivery, high metering accuracy and convenience, real-time flow regulation, and metering speed control.
Description
技术领域technical field
本发明属于流体机械技术领域，具体地说是涉及一种由液压驱动、流量可调的流量计量泵，能实时调节输出流量，排液流量调节范围大，适用于输送压力高、流量大的管路系统。The invention belongs to the technical field of fluid machinery, and in particular relates to a flow metering pump driven by hydraulic pressure and with adjustable flow rate, which can adjust the output flow rate in real time and has a large adjustment range of discharge flow rate, and is suitable for pipes with high delivery pressure and large flow rate. road system.
背景技术Background technique
泵属于一种流体机械，是过程工业流程的重要组成部分。在许多流程性工业生产中，原料、半成品和产品是液体，为了保证连续性的管道化生产，泵作为产品生产的能量提供设备和物质流通的输送设备，对液体增压和输送。另外，管道化生产还常常根据流量的调节来改变如温度、压力等工艺参数，如不另外安装调节阀，泵还应兼有控制流量的功能。A pump is a fluid machine that is an integral part of process industry processes. In many process industrial productions, raw materials, semi-finished products and products are liquids. In order to ensure continuous pipeline production, pumps are used as energy supply equipment for product production and delivery equipment for material circulation to pressurize and transport liquids. In addition, pipeline production often changes process parameters such as temperature and pressure according to the adjustment of flow rate. If no additional regulating valve is installed, the pump should also have the function of controlling flow rate.
为解决流量控制和输送两项要求，应采用计量泵。由于计量原理、动力传动和结构上的局限，现有活塞式计量泵存在着由于排液流量调节范围小而不能满足大流量输送液体的要求且难于实现实时流量调节的问题。In order to solve the two requirements of flow control and delivery, a metering pump should be used. Due to the limitation of metering principle, power transmission and structure, the existing piston metering pump has the problem of being unable to meet the requirements of large flow conveying liquid due to the small adjustment range of discharge flow, and it is difficult to realize real-time flow adjustment.
发明内容Contents of the invention
本发明的发明目的在于：针对上述存在的问题，提供一种液压驱动的大流量计量泵，解决了现有计量泵只能应用于小流量的问题，在高参数过程工业具有广泛的应用。The object of the present invention is to provide a hydraulically driven large-flow metering pump for the above-mentioned problems, which solves the problem that the existing metering pumps can only be used for small flow rates, and has wide application in high-parameter process industries.
本发明采用的技术方案是这样的：The technical scheme that the present invention adopts is such:
一种液压驱动的大流量计量泵，包括液力端、动力端和支撑组件三部分，所述液力端为一个单缸双作用泵，所述动力端为一个双作用活塞缸，所述动力端包括依次连接的液压缸、换向阀、伺服调速阀、液压泵和油箱，所述伺服调速阀与液压泵之间的连接管路还与一个安全阀连接，所述液压缸的活塞杆与液力端的计量泵活塞杆通过刚性联轴器连接从而使得液压缸与液力端同步运动，所述液力端与动力端均固定在支撑组件上。A hydraulically driven large-flow metering pump, including three parts: a fluid end, a power end and a support assembly. The fluid end is a single-cylinder double-acting pump, and the power end is a double-acting piston cylinder. The end includes a hydraulic cylinder, a reversing valve, a servo speed regulating valve, a hydraulic pump and an oil tank connected in sequence. The connecting pipeline between the servo speed regulating valve and the hydraulic pump is also connected with a safety valve. The piston of the hydraulic cylinder The rod is connected to the piston rod of the metering pump at the liquid end through a rigid coupling so that the hydraulic cylinder moves synchronously with the liquid end, and both the liquid end and the power end are fixed on the support assembly.
上述技术方案中，动力端采用液压传动，驱动力大，可满足高压大流量液体的计量要求；且动力端与液力端的活塞杆通过一个刚性联轴器连接，两活塞杆的运动同步性好，液力端排量与动力端液压缸活塞位移呈严格的比例关系，控制动力端液压缸活塞位移则可实现液力端的实时计量，且计量精度高。液力端工作时，动力端液压系统驱动液压缸活塞来带动液力端的活塞做左右往复运动，完成“左吸右排，右吸左排”连续吸排过程。伺服调速阀通过其开口度可控制液压缸内活塞往复运动的速度，以实现对计量速度的控制。In the above technical solution, the power end adopts hydraulic transmission, which has a large driving force and can meet the measurement requirements of high-pressure and large-flow liquids; and the piston rods of the power end and the hydraulic end are connected by a rigid coupling, and the movement synchronization of the two piston rods is good. , The displacement of the hydraulic end is strictly proportional to the piston displacement of the hydraulic cylinder at the power end. Controlling the piston displacement of the hydraulic cylinder at the power end can realize real-time measurement of the hydraulic end with high measurement accuracy. When the hydraulic end is working, the hydraulic system of the power end drives the piston of the hydraulic cylinder to drive the piston of the hydraulic end to reciprocate left and right to complete the continuous suction and discharge process of "left suction and right discharge, right suction and left discharge". The servo speed regulating valve can control the reciprocating speed of the piston in the hydraulic cylinder through its opening degree, so as to realize the control of the metering speed.
作为优选，所述液力端包括计量泵缸体及其内部的计量泵活塞杆、计量泵活塞、活塞轴向定位件，所述计量泵缸体左端设有配液板和计量泵左端盖，计量泵左端盖上安装有与缸体内部连通的左进液单向阀和左排液单向阀，所述计量泵缸体右端设有计量泵右端盖，计量泵右端盖上安装有与缸体内部连通的右进液单向阀和右排液单向阀，所述左进液单向阀和右进液单向阀共同与配液板上的进液管连通，所述左排液单向阀和右排液单向阀共同与配液板上的排液管连通。Preferably, the fluid end includes a metering pump cylinder and its internal metering pump piston rod, metering pump piston, and piston axial positioning member. The left end of the metering pump cylinder is provided with a liquid distribution plate and a left end cover of the metering pump. The left end cover of the metering pump is installed with a left liquid inlet one-way valve and a left liquid discharge one-way valve connected with the inside of the cylinder. The right end of the metering pump cylinder is provided with a right end cover of the metering pump. The right liquid inlet one-way valve and the right liquid discharge one-way valve connected inside the body, the left liquid inlet one-way valve and the right liquid inlet one-way valve are jointly connected with the liquid inlet pipe on the liquid distribution plate, the left liquid discharge The one-way valve and the right liquid discharge one-way valve are jointly communicated with the liquid discharge pipe on the liquid distribution plate.
作为优选，所述排液管上还安装一个流量稳定装置。流量稳定装置可有效减小换向引起的流量脉动。Preferably, a flow stabilization device is also installed on the discharge pipe. The flow stabilization device can effectively reduce the flow pulsation caused by reversing.
作为优选，所述液压缸包括液压缸缸体及其内部的液压缸活塞杆、液压缸活塞、活塞轴向定位件，所述液压缸缸体左端设有液压缸左端盖，液压缸左端盖上设有液压缸油口A，所述液压缸缸体右端设有液压缸右端盖，液压缸右端盖上设有液压缸油口B。Preferably, the hydraulic cylinder includes a hydraulic cylinder block and its internal hydraulic cylinder piston rod, hydraulic cylinder piston, and piston axial positioning member. The left end of the hydraulic cylinder block is provided with a hydraulic cylinder left end cover, and the hydraulic cylinder left end cover is A hydraulic cylinder oil port A is provided, and the right end cover of the hydraulic cylinder body is provided with a hydraulic cylinder oil port B on the right end cover of the hydraulic cylinder.
作为优选，还包括检测控制装置，该检测控制装置包括一个位置感应开关、一个位移传感器和一个数据采集控制装置，所述位置感应开关和位移传感器安装在液压缸上，并与数据采集控制装置连接，所述数据采集控制装置与液压泵连接。液压缸内活塞往复运动的总位移通过位置感应开关和位移传感器进行测量，测量精度高，控制方便，易于实现输出液体量的精确控制，满足高精度计量需要。Preferably, a detection control device is also included, the detection control device includes a position sensing switch, a displacement sensor and a data acquisition control device, the position sensing switch and displacement sensor are installed on the hydraulic cylinder and connected with the data acquisition control device , the data acquisition control device is connected with the hydraulic pump. The total displacement of the reciprocating movement of the piston in the hydraulic cylinder is measured by a position sensing switch and a displacement sensor. The measurement accuracy is high, the control is convenient, and it is easy to realize the precise control of the output liquid volume to meet the needs of high-precision measurement.
作为优选，所述支撑组件包括基座、工作台、液压缸支撑件和计量泵支撑件，所述工作台在基座上，所述液压缸通过液压缸支撑件固定在工作台上，所述液力端通过计量泵支撑件固定在工作台上。Preferably, the support assembly includes a base, a workbench, a hydraulic cylinder support and a metering pump support, the workbench is on the base, the hydraulic cylinder is fixed on the workbench through the hydraulic cylinder support, the The liquid end is fixed on the workbench through the metering pump support.
综上所述，由于采用了上述技术方案，本发明的有益效果是：用液压系统代替了传统的曲柄连杆机构，由液压系统直接驱动液力端实现液体的连续吸排，满足了现有过程工业需要大范围流量调节并输送液体的需要；计量精度高且方便，并可实现实时流量调节，控制计量速度。In summary, due to the adoption of the above technical solution, the beneficial effect of the present invention is that the traditional crank-link mechanism is replaced by a hydraulic system, and the fluid end is directly driven by the hydraulic system to realize continuous suction and discharge of liquid, which satisfies the requirements of the existing process. The industry needs a wide range of flow adjustment and liquid delivery; the measurement accuracy is high and convenient, and it can realize real-time flow adjustment and control the measurement speed.
附图说明Description of drawings
图1是本实用新型的主视图。Fig. 1 is the front view of the utility model.
图2是本实用新型的俯视图。Fig. 2 is a top view of the utility model.
图3是图2中的C-C剖视。Fig. 3 is a C-C sectional view in Fig. 2 .
图4是本实用新型的液压系统原理图。Fig. 4 is a schematic diagram of the hydraulic system of the present invention.
图中标记：1为进液管，2为左进液单向阀，3为右进液单向阀，4为排液管，5为流量稳定装置，6为配液板，7为计量泵左端盖，8为计量泵缸体，9为计量泵活塞杆，10为计量泵活塞，11为活塞轴向定位件，12为右排液单向阀，13为计量泵右端盖，14为右进液单向阀，15为刚性联轴器，16为液压缸左端盖，17为液压缸活塞杆，18为液压缸缸体，19为液压缸活塞，20为液压缸右端盖，21为密封件，22为位移传感器，23为液压缸油口B，24为液压缸油口A，25为感应开关，26为工作台，27为基座，28为液压缸支撑件，29为计量泵支撑件，30为液压缸，31为换向阀，32为伺服调速阀，33为液压泵，34为油箱，35为安全阀。Marks in the figure: 1 is the liquid inlet pipe, 2 is the left liquid inlet one-way valve, 3 is the right liquid inlet one-way valve, 4 is the liquid discharge pipe, 5 is the flow stabilization device, 6 is the liquid distribution plate, and 7 is the metering pump Left end cover, 8 is the metering pump cylinder, 9 is the metering pump piston rod, 10 is the metering pump piston, 11 is the axial positioning part of the piston, 12 is the right discharge check valve, 13 is the right end cover of the metering pump, 14 is the right Inlet check valve, 15 is the rigid coupling, 16 is the left end cover of the hydraulic cylinder, 17 is the piston rod of the hydraulic cylinder, 18 is the cylinder body of the hydraulic cylinder, 19 is the piston of the hydraulic cylinder, 20 is the right end cover of the hydraulic cylinder, 21 is the seal 22 is the displacement sensor, 23 is the oil port B of the hydraulic cylinder, 24 is the oil port A of the hydraulic cylinder, 25 is the induction switch, 26 is the workbench, 27 is the base, 28 is the hydraulic cylinder support, 29 is the metering pump support 30 is a hydraulic cylinder, 31 is a reversing valve, 32 is a servo speed control valve, 33 is a hydraulic pump, 34 is an oil tank, and 35 is a safety valve.
具体实施方式Detailed ways
下面结合附图，对本发明作详细的说明。Below in conjunction with accompanying drawing, the present invention is described in detail.
实施例1：Example 1:
一种液压驱动的大流量计量泵，包括液力端、动力端和支撑组件三部分，所述液力端为一个单缸双作用泵，所述动力端为一个双作用活塞缸，所述动力端包括依次连接的液压缸30、换向阀31、伺服调速阀32、液压泵33和油箱34，所述伺服调速阀32与液压泵33之间的连接管路还与一个安全阀35连接，所述液压缸30的活塞杆17与液力端的计量泵活塞杆9通过刚性联轴器15连接从而使得液压缸30与液力端同步运动，所述液力端与动力端均固定在支撑组件上。A hydraulically driven large-flow metering pump, including three parts: a fluid end, a power end and a support assembly. The fluid end is a single-cylinder double-acting pump, and the power end is a double-acting piston cylinder. The end includes a hydraulic cylinder 30, a reversing valve 31, a servo speed regulating valve 32, a hydraulic pump 33 and an oil tank 34 connected in sequence, and the connecting pipeline between the servo speed regulating valve 32 and the hydraulic pump 33 is also connected with a safety valve 35 The piston rod 17 of the hydraulic cylinder 30 is connected with the metering pump piston rod 9 of the fluid end through a rigid coupling 15 so that the hydraulic cylinder 30 and the fluid end move synchronously, and the fluid end and the power end are both fixed on on the support component.
所述支撑组件包括基座27、工作台26、液压缸支撑件28和计量泵支撑件29，所述工作台26在基座27上，所述液压缸30通过液压缸支撑件28固定在工作台26上，所述液力端通过计量泵支撑件29固定在工作台26上。The support assembly includes a base 27, a workbench 26, a hydraulic cylinder support 28 and a metering pump support 29. On the platform 26, the fluid end is fixed on the working platform 26 through a metering pump support 29.
所述液力端包括计量泵缸体8及其内部的计量泵活塞杆9、计量泵活塞10、活塞轴向定位件11，所述计量泵缸体8左端设有配液板6和计量泵左端盖7，计量泵左端盖7上安装有与缸体内部连通的左进液单向阀2和左排液单向阀3，所述计量泵缸体8右端设有计量泵右端盖13，计量泵右端盖13上安装有与缸体内部连通的右进液单向阀14和右排液单向阀12，所述左进液单向阀2和右进液单向阀14共同与配液板6上的进液管1连通，所述左排液单向阀3和右排液单向阀12共同与配液板6上的排液管4连通。The hydraulic end includes a metering pump cylinder 8 and its internal metering pump piston rod 9, metering pump piston 10, and piston axial positioning member 11. The left end of the metering pump cylinder 8 is provided with a liquid distribution plate 6 and a metering pump The left end cover 7, the left end cover 7 of the metering pump is equipped with a left liquid inlet check valve 2 and a left liquid discharge check valve 3 communicating with the inside of the cylinder, the right end of the metering pump cylinder 8 is provided with a metering pump right end cover 13, The right end cover 13 of the metering pump is equipped with a right liquid inlet check valve 14 and a right discharge check valve 12 communicating with the inside of the cylinder, and the left liquid inlet check valve 2 and the right liquid inlet check valve 14 are jointly connected with the matching valve. The liquid inlet pipe 1 on the liquid plate 6 communicates, and the left liquid discharge one-way valve 3 and the right liquid discharge one-way valve 12 communicate with the liquid discharge pipe 4 on the liquid distribution plate 6 together.
所述液压缸30包括液压缸缸体18及其内部的液压缸活塞杆17、液压缸活塞19、活塞轴向定位件11，所述液压缸缸体18左端设有液压缸左端盖16，液压缸左端盖16上设有液压缸油口A24，所述液压缸缸体18右端设有液压缸右端盖20，液压缸右端盖20上设有液压缸油口B23。The hydraulic cylinder 30 includes a hydraulic cylinder block 18 and its internal hydraulic cylinder piston rod 17, hydraulic cylinder piston 19, and piston axial positioning member 11. The left end of the hydraulic cylinder block 18 is provided with a hydraulic cylinder left end cover 16. The hydraulic cylinder oil port A24 is provided on the left end cover 16 of the hydraulic cylinder, the right end cover 20 of the hydraulic cylinder is provided at the right end of the hydraulic cylinder body 18, and the oil port B23 of the hydraulic cylinder is provided on the right end cover 20 of the hydraulic cylinder.
实施例2：Example 2:
一种液压驱动的大流量计量泵，包括液力端、动力端和支撑组件三部分，所述液力端为一个单缸双作用泵，所述动力端为一个双作用活塞缸，所述动力端包括依次连接的液压缸30、换向阀31、伺服调速阀32、液压泵33和油箱34，所述伺服调速阀32与液压泵33之间的连接管路还与一个安全阀35连接，所述液压缸30的活塞杆17与液力端的计量泵活塞杆9通过刚性联轴器15连接从而使得液压缸30与液力端同步运动，所述液力端与动力端均固定在支撑组件上。A hydraulically driven large-flow metering pump, including three parts: a fluid end, a power end and a support assembly. The fluid end is a single-cylinder double-acting pump, and the power end is a double-acting piston cylinder. The end includes a hydraulic cylinder 30, a reversing valve 31, a servo speed regulating valve 32, a hydraulic pump 33 and an oil tank 34 connected in sequence, and the connecting pipeline between the servo speed regulating valve 32 and the hydraulic pump 33 is also connected with a safety valve 35 The piston rod 17 of the hydraulic cylinder 30 is connected with the metering pump piston rod 9 of the fluid end through a rigid coupling 15 so that the hydraulic cylinder 30 and the fluid end move synchronously, and the fluid end and the power end are both fixed on on the support component.
所述支撑组件包括基座27、工作台26、液压缸支撑件28和计量泵支撑件29，所述工作台26在基座27上，所述液压缸30通过液压缸支撑件28固定在工作台26上，所述液力端通过计量泵支撑件29固定在工作台26上。The support assembly includes a base 27, a workbench 26, a hydraulic cylinder support 28 and a metering pump support 29. On the platform 26, the fluid end is fixed on the working platform 26 through a metering pump support 29.
所述液力端包括计量泵缸体8及其内部的计量泵活塞杆9、计量泵活塞10、活塞轴向定位件11，所述计量泵缸体8左端设有配液板6和计量泵左端盖7，计量泵左端盖7上安装有与缸体内部连通的左进液单向阀2和左排液单向阀3，所述计量泵缸体8右端设有计量泵右端盖13，计量泵右端盖13上安装有与缸体内部连通的右进液单向阀14和右排液单向阀12，所述左进液单向阀2和右进液单向阀14共同与配液板6上的进液管1连通，所述左排液单向阀3和右排液单向阀12共同与配液板6上的排液管4连通。The hydraulic end includes a metering pump cylinder 8 and its internal metering pump piston rod 9, metering pump piston 10, and piston axial positioning member 11. The left end of the metering pump cylinder 8 is provided with a liquid distribution plate 6 and a metering pump The left end cover 7, the left end cover 7 of the metering pump is equipped with a left liquid inlet check valve 2 and a left liquid discharge check valve 3 communicating with the inside of the cylinder, the right end of the metering pump cylinder 8 is provided with a metering pump right end cover 13, The right end cover 13 of the metering pump is equipped with a right liquid inlet check valve 14 and a right discharge check valve 12 communicating with the inside of the cylinder, and the left liquid inlet check valve 2 and the right liquid inlet check valve 14 are jointly connected with the matching valve. The liquid inlet pipe 1 on the liquid plate 6 communicates, and the left liquid discharge one-way valve 3 and the right liquid discharge one-way valve 12 communicate with the liquid discharge pipe 4 on the liquid distribution plate 6 together.
所述液压缸30包括液压缸缸体18及其内部的液压缸活塞杆17、液压缸活塞19、活塞轴向定位件11，所述液压缸缸体18左端设有液压缸左端盖16，液压缸左端盖16上设有液压缸油口A24，所述液压缸缸体18右端设有液压缸右端盖20，液压缸右端盖20上设有液压缸油口B23。The hydraulic cylinder 30 includes a hydraulic cylinder block 18 and its internal hydraulic cylinder piston rod 17, hydraulic cylinder piston 19, and piston axial positioning member 11. The left end of the hydraulic cylinder block 18 is provided with a hydraulic cylinder left end cover 16. The hydraulic cylinder oil port A24 is provided on the left end cover 16 of the hydraulic cylinder, the right end cover 20 of the hydraulic cylinder is provided at the right end of the hydraulic cylinder body 18, and the oil port B23 of the hydraulic cylinder is provided on the right end cover 20 of the hydraulic cylinder.
还包括检测控制装置，该检测控制装置包括一个位置感应开关25、一个位移传感器22和一个数据采集控制装置，所述位置感应开关25和位移传感器22安装在液压缸30上，并与数据采集控制装置连接，所述数据采集控制装置与液压泵33连接。Also comprise detection control device, this detection control device comprises a position induction switch 25, a displacement sensor 22 and a data acquisition control device, described position induction switch 25 and displacement sensor 22 are installed on the hydraulic cylinder 30, and with data acquisition control The device is connected, and the data acquisition control device is connected with the hydraulic pump 33 .
实施例3：Example 3:
一种液压驱动的大流量计量泵，包括液力端、动力端和支撑组件三部分，所述液力端为一个单缸双作用泵，所述动力端为一个双作用活塞缸，所述动力端包括依次连接的液压缸30、换向阀31、伺服调速阀32、液压泵33和油箱34，所述伺服调速阀32与液压泵33之间的连接管路还与一个安全阀35连接，所述液压缸30的活塞杆17与液力端的计量泵活塞杆9通过刚性联轴器15连接从而使得液压缸30与液力端同步运动，所述液力端与动力端均固定在支撑组件上。A hydraulically driven large-flow metering pump, including three parts: a fluid end, a power end and a support assembly. The fluid end is a single-cylinder double-acting pump, and the power end is a double-acting piston cylinder. The end includes a hydraulic cylinder 30, a reversing valve 31, a servo speed regulating valve 32, a hydraulic pump 33 and an oil tank 34 connected in sequence, and the connecting pipeline between the servo speed regulating valve 32 and the hydraulic pump 33 is also connected with a safety valve 35 The piston rod 17 of the hydraulic cylinder 30 is connected with the metering pump piston rod 9 of the fluid end through a rigid coupling 15 so that the hydraulic cylinder 30 and the fluid end move synchronously, and the fluid end and the power end are both fixed on on the support component.
所述支撑组件包括基座27、工作台26、液压缸支撑件28和计量泵支撑件29，所述工作台26在基座27上，所述液压缸30通过液压缸支撑件28固定在工作台26上，所述液力端通过计量泵支撑件29固定在工作台26上。The support assembly includes a base 27, a workbench 26, a hydraulic cylinder support 28 and a metering pump support 29. On the platform 26, the fluid end is fixed on the working platform 26 through a metering pump support 29.
所述液力端包括计量泵缸体8及其内部的计量泵活塞杆9、计量泵活塞10、活塞轴向定位件11，所述计量泵缸体8左端设有配液板6和计量泵左端盖7，计量泵左端盖7上安装有与缸体内部连通的左进液单向阀2和左排液单向阀3，所述计量泵缸体8右端设有计量泵右端盖13，计量泵右端盖13上安装有与缸体内部连通的右进液单向阀14和右排液单向阀12，所述左进液单向阀2和右进液单向阀14共同与配液板6上的进液管1连通，所述左排液单向阀3和右排液单向阀12共同与配液板6上的排液管4连通。The hydraulic end includes a metering pump cylinder 8 and its internal metering pump piston rod 9, metering pump piston 10, and piston axial positioning member 11. The left end of the metering pump cylinder 8 is provided with a liquid distribution plate 6 and a metering pump The left end cover 7, the left end cover 7 of the metering pump is equipped with a left liquid inlet check valve 2 and a left liquid discharge check valve 3 communicating with the inside of the cylinder, the right end of the metering pump cylinder 8 is provided with a metering pump right end cover 13, The right end cover 13 of the metering pump is equipped with a right liquid inlet check valve 14 and a right discharge check valve 12 communicating with the inside of the cylinder, and the left liquid inlet check valve 2 and the right liquid inlet check valve 14 are jointly connected with the matching valve. The liquid inlet pipe 1 on the liquid plate 6 communicates, and the left liquid discharge one-way valve 3 and the right liquid discharge one-way valve 12 communicate with the liquid discharge pipe 4 on the liquid distribution plate 6 together.
所述液压缸30包括液压缸缸体18及其内部的液压缸活塞杆17、液压缸活塞19、活塞轴向定位件11，所述液压缸缸体18左端设有液压缸左端盖16，液压缸左端盖16上设有液压缸油口A24，所述液压缸缸体18右端设有液压缸右端盖20，液压缸右端盖20上设有液压缸油口B23。The hydraulic cylinder 30 includes a hydraulic cylinder block 18 and its internal hydraulic cylinder piston rod 17, hydraulic cylinder piston 19, and piston axial positioning member 11. The left end of the hydraulic cylinder block 18 is provided with a hydraulic cylinder left end cover 16. The hydraulic cylinder oil port A24 is provided on the left end cover 16 of the hydraulic cylinder, the right end cover 20 of the hydraulic cylinder is provided at the right end of the hydraulic cylinder body 18, and the oil port B23 of the hydraulic cylinder is provided on the right end cover 20 of the hydraulic cylinder.
实施例4：Example 4:
本实施例为本实用新型的最佳实施例。如图1、2、3、4所示，一种液压驱动的大流量计量泵，包括液力端、动力端和支撑组件三部分，所述液力端为一个单缸双作用泵，所述动力端为一个双作用活塞缸，所述动力端包括依次连接的液压缸30、换向阀31、伺服调速阀32、液压泵33和油箱34，所述伺服调速阀32与液压泵33之间的连接管路还与一个安全阀35连接，所述液压缸30的活塞杆17与液力端的计量泵活塞杆9通过刚性联轴器15连接从而使得液压缸30与液力端同步运动，所述液力端与动力端均固定在支撑组件上。This embodiment is the best embodiment of the utility model. As shown in Figures 1, 2, 3, and 4, a hydraulically driven large-flow metering pump includes three parts: a fluid end, a power end, and a support assembly. The fluid end is a single-cylinder double-acting pump, and the The power end is a double-acting piston cylinder, and the power end includes a hydraulic cylinder 30, a reversing valve 31, a servo speed regulating valve 32, a hydraulic pump 33 and an oil tank 34 connected in sequence, and the servo speed regulating valve 32 and the hydraulic pump 33 The connecting pipeline between them is also connected with a safety valve 35, and the piston rod 17 of the hydraulic cylinder 30 is connected with the metering pump piston rod 9 of the fluid end through a rigid coupling 15 so that the hydraulic cylinder 30 and the fluid end move synchronously. , both the liquid end and the power end are fixed on the support assembly.
所述支撑组件包括基座27、工作台26、液压缸支撑件28和计量泵支撑件29，所述工作台26在基座27上，所述液压缸30通过液压缸支撑件28固定在工作台26上，所述液力端通过计量泵支撑件29固定在工作台26上。The support assembly includes a base 27, a workbench 26, a hydraulic cylinder support 28 and a metering pump support 29. On the platform 26, the fluid end is fixed on the working platform 26 through a metering pump support 29.
所述液力端包括计量泵缸体8及其内部的计量泵活塞杆9、计量泵活塞10、活塞轴向定位件11，所述计量泵缸体8左端设有配液板6和计量泵左端盖7，计量泵左端盖7上安装有与缸体内部连通的左进液单向阀2和左排液单向阀3，所述计量泵缸体8右端设有计量泵右端盖13，计量泵右端盖13上安装有与缸体内部连通的右进液单向阀14和右排液单向阀12，所述左进液单向阀2和右进液单向阀14共同与配液板6上的进液管1连通，所述左排液单向阀3和右排液单向阀12共同与配液板6上的排液管4连通。The hydraulic end includes a metering pump cylinder 8 and its internal metering pump piston rod 9, metering pump piston 10, and piston axial positioning member 11. The left end of the metering pump cylinder 8 is provided with a liquid distribution plate 6 and a metering pump The left end cover 7, the left end cover 7 of the metering pump is equipped with a left liquid inlet check valve 2 and a left liquid discharge check valve 3 communicating with the inside of the cylinder, the right end of the metering pump cylinder 8 is provided with a metering pump right end cover 13, The right end cover 13 of the metering pump is equipped with a right liquid inlet check valve 14 and a right discharge check valve 12 communicating with the inside of the cylinder, and the left liquid inlet check valve 2 and the right liquid inlet check valve 14 are jointly connected with the matching valve. The liquid inlet pipe 1 on the liquid plate 6 communicates, and the left liquid discharge one-way valve 3 and the right liquid discharge one-way valve 12 communicate with the liquid discharge pipe 4 on the liquid distribution plate 6 together.
所述液压缸30包括液压缸缸体18及其内部的液压缸活塞杆17、液压缸活塞19、活塞轴向定位件11，所述液压缸缸体18左端设有液压缸左端盖16，液压缸左端盖16上设有液压缸油口A24，所述液压缸缸体18右端设有液压缸右端盖20，液压缸右端盖20上设有液压缸油口B23。The hydraulic cylinder 30 includes a hydraulic cylinder block 18 and its internal hydraulic cylinder piston rod 17, hydraulic cylinder piston 19, and piston axial positioning member 11. The left end of the hydraulic cylinder block 18 is provided with a hydraulic cylinder left end cover 16. The hydraulic cylinder oil port A24 is provided on the left end cover 16 of the hydraulic cylinder, the right end cover 20 of the hydraulic cylinder is provided at the right end of the hydraulic cylinder body 18, and the oil port B23 of the hydraulic cylinder is provided on the right end cover 20 of the hydraulic cylinder.
所述排液管4上还安装一个流量稳定装置5。A flow stabilization device 5 is also installed on the discharge pipe 4 .
本实用新型的工作原理：Working principle of the utility model:
液力端工作时，动力端通过液压缸活塞杆17驱动计量泵活塞杆9运动来实现液体的连续吸排。当计量泵活塞杆9带动计量泵活塞10向左运动时，右进液单向阀14和左排液单向阀3打开，左进液单向阀2和右排液单向阀12关闭，液体通过进液管1进入计量泵缸体8的右腔，其左腔的液体通过排液管4输出到与其直接相连接的管路系统中；当计量泵活塞杆9带动计量泵活塞10向右运动时，右进液单向阀14和左排液单向阀3关闭，右进液单向阀2和左排液单向阀12打开，液体通过进液管1进入计量泵缸体8的左腔，其右腔的液体通过排液管4输出到与其直接相连接的管路系统中。When the hydraulic end is working, the power end drives the metering pump piston rod 9 to move through the hydraulic cylinder piston rod 17 to realize continuous suction and discharge of liquid. When the metering pump piston rod 9 drives the metering pump piston 10 to move to the left, the right liquid inlet check valve 14 and the left liquid discharge check valve 3 are opened, the left liquid inlet check valve 2 and the right discharge check valve 12 are closed, The liquid enters the right chamber of the metering pump cylinder 8 through the liquid inlet pipe 1, and the liquid in the left chamber is output to the pipeline system directly connected to it through the liquid discharge pipe 4; when the metering pump piston rod 9 drives the metering pump piston 10 to When moving right, the right liquid inlet check valve 14 and the left liquid discharge check valve 3 are closed, the right liquid inlet check valve 2 and the left liquid discharge check valve 12 are opened, and the liquid enters the metering pump cylinder 8 through the liquid inlet pipe 1 The liquid in the left chamber of the right chamber is output to the pipeline system directly connected with it through the drain pipe 4.
上述四个实施例中，在各处均采用密封件21进行密封。计量泵活塞10与计量泵缸体8的内壁之间、液压缸活塞19与液压缸缸体18的内壁之间、液压缸活塞19与液压缸活塞杆17连接处均采用密封件21密封，防止内漏。计量泵活塞杆10与计量泵左端盖7、计量泵右端盖13之间，计量泵缸体8与计量泵左端盖7、计量泵右端盖13之间，液压缸活塞杆17与液压缸左端盖16、液压缸右端盖20之间，液压缸缸体18与液压缸左端盖16、液压缸右端盖20之间，均采用密封件21密封，防止外漏。In the above four embodiments, the sealing member 21 is used everywhere for sealing. Between the metering pump piston 10 and the inner wall of the metering pump cylinder 8, between the hydraulic cylinder piston 19 and the inner wall of the hydraulic cylinder body 18, and between the hydraulic cylinder piston 19 and the hydraulic cylinder piston rod 17 are sealed with a seal 21 to prevent Endoleak. Between the metering pump piston rod 10 and the left end cover 7 of the metering pump, the right end cover 13 of the metering pump, between the cylinder body of the metering pump 8 and the left end cover 7 of the metering pump, and the right end cover 13 of the metering pump, between the piston rod 17 of the hydraulic cylinder and the left end cover of the hydraulic cylinder 16. Between the right end cover 20 of the hydraulic cylinder, between the cylinder body 18 of the hydraulic cylinder and the left end cover 16 of the hydraulic cylinder, and between the right end cover 20 of the hydraulic cylinder, seals 21 are used to seal to prevent external leakage.
Claims (3)
- A kind of 1. Large flow pump of hydraulic-driven, it is characterised in that：Including fluid end, power end and support component three Point, the fluid end be a single-cylinder double-acting pump, and the power end is a two-way ram cylinder, the power end including according to The hydraulic cylinder of secondary connection（30）, reversal valve（31）, servo flow speed control valve（32）, hydraulic pump（33）And fuel tank（34）, the servo tune Fast valve（32）With hydraulic pump（33）Between connecting line also with a safety valve（35）Connection, the hydraulic cylinder（30）Piston Bar（17）With the metering sucker rod of fluid end（9）Pass through positive coupling（15）Connection is so that hydraulic cylinder（30）With fluid power End is synchronized with the movement, and the fluid end is each attached in support component with power end, and the fluid end includes metering pump cylinder（8）And Its internal metering sucker rod（9）, metering pump piston（10）, piston axial direction keeper（11）, the metering pump cylinder（8）It is left End is provided with fluid proportion plate（6）With measuring pump left end cap（7）, measuring pump left end cap（7）On the left side connected with cylinder interior be installed entered Liquid check valve（2）With left bank liquid check valve（3）, the metering pump cylinder（8）Right-hand member is provided with measuring pump right end cap（13）, measuring pump Right end cap（13）On the right feed liquor check valve connected with cylinder interior is installed（14）With right discharge opeing check valve（12）, the left side is entered Liquid check valve（2）With right feed liquor check valve（14）Jointly and fluid proportion plate（6）On feed tube（1）Connection, the left bank liquid are unidirectional Valve（3）With right discharge opeing check valve（12）Jointly and fluid proportion plate（6）On discharging tube（4）Connection, the discharging tube（4）On also install One flow stabilization apparatus（5）, in addition to detection control apparatus, the detection control apparatus includes a location sensitive and switchs （25）, a displacement transducer（22）With a data acquisition control device, the location sensitive switch（25）And displacement sensing Device（22）Installed in hydraulic cylinder（30）On, and be connected with data acquisition control device, the data acquisition control device and hydraulic pressure Pump（33）Connection.
- A kind of 2. Large flow pump of hydraulic-driven according to claim 1, it is characterised in that：The hydraulic cylinder（30） Including hydraulic cylinder body（18）And its internal hydraulic cylinder piston rod（17）, hydraulic cylinder piston（19）, piston axial direction keeper （11）, the hydraulic cylinder body（18）Left end is provided with hydraulic cylinder left end cap（16）, hydraulic cylinder left end cap（16）It is provided with hydraulic cylinder Hydraulic fluid port A（24）, the hydraulic cylinder body（18）Right-hand member is provided with hydraulic cylinder right end cap（20）, hydraulic cylinder right end cap（20）It is provided with liquid Cylinder pressure hydraulic fluid port B（23）.
- A kind of 3. Large flow pump of hydraulic-driven according to claim 1, it is characterised in that：The support component bag Include pedestal（27）, workbench（26）, hydraulic cylinder support member（28）With measuring pump support member（29）, the workbench（26）In pedestal （27）On, the hydraulic cylinder（30）Pass through hydraulic cylinder support member（28）It is fixed on workbench（26）On, the fluid end passes through meter Measure pump support member（29）It is fixed on workbench（26）On.
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| CN201610332071.0A CN105952607B (en) | 2016-05-19 | 2016-05-19 | A kind of Large flow pump of hydraulic-driven |
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| CN201610332071.0A Active CN105952607B (en) | 2016-05-19 | 2016-05-19 | A kind of Large flow pump of hydraulic-driven |
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| CN109044672B (en) * | 2018-08-26 | 2021-03-16 | 张惠丽 | Hydraulic water cylinder quick retraction piston rod mechanism for automatic defecation assisting bedpan |
| CN116255320A (en) * | 2023-03-09 | 2023-06-13 | 北京三一智造科技有限公司 | Hydraulic pumping devices and construction machinery |
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| IT1227502B (en) * | 1988-12-06 | 1991-04-12 | Alberto Giordani | VOLUMETRIC PUMP FOR THE PUMPING OF FOOD LIQUIDS IN GENERAL AND, IN PARTICULAR, FOR USE IN THE OENOLOGICAL FIELD |
| CN1026147C (en) * | 1992-07-31 | 1994-10-05 | 天津理工学院 | Single-cylinder double-acting hydraulic mud pump |
| CN2150355Y (en) * | 1993-01-05 | 1993-12-22 | 长沙矿山研究院 | Hydraulic double-acting supercharger |
| US20140334947A1 (en) * | 2013-05-10 | 2014-11-13 | Caterpillar Inc. | Fluid pump system |
| CN203627118U (en) * | 2013-11-08 | 2014-06-04 | 中国石油天然气股份有限公司 | Oil sludge continuous conveying device of single-cylinder bidirectional piston pump |
| CN104358667A (en) * | 2014-11-13 | 2015-02-18 | 云刀水射流技术（上海）有限公司 | High-pressure cylinder |
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