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　　随着建筑行业的智能化程度越来越高，很多建筑机械已经代替了人工作业，大大的提高了工作效率，降低了人力成本的支出。混凝土输送泵，又称混凝土泵，由泵体和输送管组成，是一种利用压力将混凝土沿管道连续输送的机械，主要应用于房建、桥梁及隧道施工。为了提高输送泵的移动性，一般将泵体装在汽车底盘上，再装备可伸缩或屈折的布料杆，构成输送泵车。目前，主要分为闸板阀混凝土输送泵和S管阀混凝土输送泵。
　　设备结构及基本性能
　　本项目以山东某设备产商WF型输送泵车为例，其主要部件混凝土输送泵由料斗、泵送系统、液压系统、清洗系统、电气系统、电动机、行走底盘等组成。
　　泵送机构由2只主缸水箱、换向装置、2只混凝土缸、2只混凝土活料斗、分配阀(S形阀)、摆臂、2只摆动液压缸和出料口组成。整机性能和液压系统参数分别如表1、表2所示。
　工艺原理
　　混凝土活塞分别与主液压缸活塞杆连接，在主液压缸液压油作用下，作往复运动，一缸前进，则另一缸后退;混凝土缸出口与料斗连通，分配阀一端接出料口，另一端能过花键轴与摆臂连接，在摆动液压缸作用下，可以左右摆动。
　　泵送混凝土料时，在主液压缸作用下，混凝土活塞可前进或后退。同时在摆动液压缸作用下，分配阀与混凝土缸连通，混凝土缸与料斗连通。这样混凝土活塞后退，便将料斗内的混凝土吸入混凝土缸，混凝土活塞前进，将混凝土缸内混凝土料送入分配阀泵出。
　　当混凝土活塞后退至行程终端时，触发水箱中的换向装置，主液压缸换向，同时摆动油缸换向，使分配阀与混凝土缸连通，混凝土缸与料斗连通，这时活塞后退前进依次循环，从而实现连续泵送。
　　反泵时，通过反泵操作，使处在吸入行程的混凝土缸与分配阀连通，处在推送行程的混凝土缸与料斗连通，从而将管路中的混凝土抽回料斗。
　　泵送系统通过分配阀的转换完成混凝土的吸入与排出动作，因此分配阀是混凝土泵中的关键部件，会直接影响到混凝土泵的性能。
　　方案选型
　　该设备所需的控制点数为数字量输入12点，数字量输出8点。其中主要的输入输出点为正泵、反泵、远控/近控、主缸进/退、摆缸进/退、高压 /低压、电动机起动/停止、2个接近开关、4个电磁阀、指示灯运行指示。I/O点设置如表3所示。
　　由于该设备主要销往海外市场，设备厂商在电控系统选型时主要考虑产品的高可靠性和品牌知名度。前者保证设备稳定运行，最大限度降低售后服务的成本，甚至无需售后服务;后者有助于提升设备整体的品牌，提升在海外市场的竞争力。

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SIEMENS 6ES5456-4UA12 OUTPUT DIGITAL MODULE 6ES54564UA12

SIEMENS Sinumerik 6FC5403-0AA20-1AA0 6FC54030AA201AA0

Mitsubishi Communication module A1SJ71QC24N NEU BOX

SIEMENS Simodrive 6SN1118-0DM23-0AA0

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Allen Bradley SLC 500 1746-OB16 Series D Output Module

ABB robot: DSQC 326 Robot computer for S4 cabinet - 3HAB2242-1

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01dB SIP95 Sound Level Logging Meter FFT Audio Analyzer

MULTILIN 750-P5-G5-S5-HI-A20-R-E NSFP 750P5G5S5HIA20RE

ALLEN BRADLEY 1756-L1M1 NSFP 1756L1M1

ALLEN BRADLEY 1336-B010-EAD-FA2 USPP 1336B010EADFA2

GENERAL ELECTRIC 502997 USPP 502997

SQUARE D PA360000M USPP PA360000M

SIEMENS 6SE3217-3DB40 NSPP 6SE32173DB40

AUTOMATION INTELLIGENCE 8207D82 USPP 8207D82

Siemens 6ES5 944-7UB11 -- 6ES59447UB11

Siemens Simatic S5 6ES5 526-3LF01 6ES55263LF01

SIEMENS 6ES5-701-1LA12 NSFP 6ES57011LA12

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Sans Digital HA-ARC-ARC1223X 2-Port Mini-SAS 6G SAS/SATA PCIe 2.0 x8 Controller

Superior Electric M063-FD09

SIEMENS Interface Module 6ES5 752-0AA43 WITH PAPERWORK

SER C F/W REV A PKG DATE 07/18/2011

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Siemens USB/PPI+ USB PPI+ PLC Cable 6ES7 901-3DB30-0XA0

Schneider Modicon AS-BDEP-209 ASBDEP209 8 AC Input NIB

Schneider Modicon ASB875111 Analog Input Module AS-B875-111

Schneider Modicon AS-B840-108 USPP ASB840108

Schneider Modicon AS-B258-101 Analog MUX Mercury Relay 0 To 10 V B258-101

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SCHNEIDER MODICON TC2000 INDUSTRIAL PC OPERATOR INTERFACE 3515 KPM CASE BACK

Siemens 6ES5420-4UA13 Digital Input Module 32 DI 24VDC SIMATIC with Warranty

ROBOTRON 503-1-0324-07 USPP 5031032407

SIEMENS BREAKERS P/N: 1EC 60947 VDE 0660

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RELIANCE ELECTRIC AUTOMAX NETWORK COMMUNICATIONS MODULE 0-57404-1E

SIEMENS CONTROLLER CARD 6SN1118-0DM33-0AA0

SIEMENS 6SN1118-1NH01-0AA1 6SN1 118-1NH01-0AA1 SIMODRIVE 611-U Control Unit

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ALLEN BRADLEY VersaView 1500M OPERATOR INTERFACE DISPLAY 6186-M15AL SER. B

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(N2-3) 1 ROBOTRON 323-0-0102-00 CONTROLLER N2-3

MEASUREX 053669-01 USPP 05366901

ALLEN BRADLEY 1336-B050-EAG-FA2-L2-S1 USPP 1336B050EAGFA2L2

GE FANUC IC600LX680 USPP IC600LX680

FANUC A16B-0160-0471 USPP A16B01600471

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SIEMENS 6ES7-315-2EG10-0AB0 USPP 6ES73152EG100AB0

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Siemens 6ES5-945-7UA13 USPP 6ES59457UA13

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Schneider Modicon ASP890000 EXCELLENT Slot Mount Remote I/O Processor AS-P890-000

Schneider Modicon AS-B545-000 USPP ASB545000

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SHARP ZW-162N USPP ZW162N

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TEKTRONIX TDS2CMA Communication Module TESTE

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PILZ 10/P60.112.2/480VAC USPP 10P601122480VAC

MODICON AS-521P-010 USPP AS521P010

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Lenel LNL-1300 Single Reader Interface Module

Yaskawa 87820-15003-S202 PLC Module 8782015003 NIB

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Reliance 0-49002-2

Schneider Modicon AS-B805-016 800 I/O MODULE NIB

Schneider Modicon AS-884A-311 USPP AS884A311

Schneider Modicon AS-P230-080 USPP ASP230080

Schneider Modicon AS-B266-000 USPP ASB266000

Schneider Modicon AS-8534-000 Low Density Connector NIB

MODICON TELEMECANIQUE MAGELIS OPERATOR INTERFACE XBT F024110

SIEMENS SIMATIC S7 DIGITAL INPUT MODULE 6ES7 321-1BH02-0AA0 6ES7321-1BH02-0AA0

Siemens 6ES7 334-0KE00-0AB0 -- 6ES73340KE000AB0

Siemens Simatic Panel PC IL70 Touch Panel PC 6AG7011-1BA00-0AD0

Siemens 9350 9350DC-100-0NZZZA NIB Power Meter Display ION Profibus Access

SIEMENS Sinumerik MachiControl Panel 3T 548 025 9004

SIEMENS 6SN118-0AA11-0AA1 6SN11180AA110AA1 Simodrive

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SIEMENS Encoder 6FC9320-3DC F54621B00

Advantech PCM-9381

ALLEN-BRADLEY 2711E-K10C6 PANELVIEW 1000E OPERATOR INTERFACE

ABB 6228BZ10000D MULTIBUS SC D/F

Acterna FST-2310

6AV6112-1AB20-0DB0 COROS VP-B20

8520-MOP7 ALLEN BRADLEY MONITORS CRT REMANUFACTURED

SIEMENS 6SE3-228-4DK40 USPP 6SE32284DK40

BAILEY CONTROLS IMCOM-03 NSFP IMCOM03

ASEA BROWN BOVERI YB560103-CD/24 USPP YB560103CD24

MODICON 557VIC10400 USPP 557VIC10400

INDRAMAT MDD093A-N-030-N2L-110PB0 USPP MDD093AN030N2L1A

ASEA BROWN BOVERI GNT0137211P5 USPP GNT0137211P5

TYLAN GENERAL FC-3926V NSFP FC3926V

Siemens 6ES5-450-3AA11 USPP 6ES54503AA11

SIEMENS 6ES5 700-0LA12 6ES57000LA12

SIEMENS S5 6ES5 374-2KH215V Flash 256 kByte Memory 16Bit

Siemens S5 6ES5 955-3LF44 6ES5955-3LF44 6ES59553LF44

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