140DDI85300
140DDI85300140DDI85300
壓力繼電器是利用液體的壓力來(lái)啟閉電氣觸點(diǎn)的液壓電氣轉(zhuǎn)換元件。當(dāng)系統(tǒng)壓力達(dá)到壓力繼電器的調(diào)定值時(shí),發(fā)出電信號(hào),使電氣元件(如電磁鐵、電機(jī)、時(shí)間繼電器、電磁離合器等)動(dòng)作,使油路卸壓、換向,執(zhí)行元件實(shí)現(xiàn)順序動(dòng)作,或關(guān)閉電動(dòng)機(jī)使系統(tǒng)停止工作,起安全保護(hù)作用等。
壓力繼電器有柱塞式、膜片式、彈簧管式和波紋管式四種結(jié)構(gòu)形式。下面對(duì)柱塞式壓力繼電器(見(jiàn)圖)的工作原理作一介紹:
當(dāng)從繼電器下端進(jìn)油口3進(jìn)入的液體壓力達(dá)到調(diào)定壓力值時(shí),推動(dòng)柱塞2上移,此位移通過(guò)杠桿放大后推動(dòng)微動(dòng)開(kāi)關(guān)4動(dòng)作。改變彈簧1的壓縮量,可以調(diào)節(jié)繼電器的動(dòng)作壓力。
●業(yè)從事(DCS系統(tǒng))(機(jī)器人系統(tǒng))(大型伺服控制系統(tǒng))模塊 備件銷(xiāo)售廈門(mén)[泰尼電氣有
廈門(mén)泰尼備件解決方案銷(xiāo)售中心:
轉(zhuǎn)子流量計(jì)在工業(yè)生產(chǎn)過(guò)程中應(yīng)用較廣,可以測(cè)量多種介質(zhì)的流量,特別適用于中小管徑和低雷諾數(shù)的中小流量測(cè)量。轉(zhuǎn)子流量計(jì)結(jié)構(gòu)簡(jiǎn)單,靈敏度高,量程比寬(10:1),壓力損失小且恒定,對(duì)直管段的要求不高,刻度近似線性,價(jià)格便宜,使用維護(hù)簡(jiǎn)便。但儀表受被測(cè)介質(zhì)密度、粘度、溫度、壓力等因素的影響,其精度一般在1.5級(jí)左右。
應(yīng)用場(chǎng)合:用于安全保護(hù)、控制執(zhí)行元件的順序動(dòng)作、用于泵的啟閉、用于泵的卸荷。
注意: 壓力繼電器必須放在壓力有明顯變化的地方才能輸出電信號(hào)。若將壓力繼電器放在回油路上,由于回油路直接接回油箱,壓力也沒(méi)有變化,所以壓力繼電器也不會(huì)工作。
壓力繼電器由緩沖器、橡皮薄膜、頂桿、壓縮彈簧和微動(dòng)開(kāi)關(guān)等組成。微動(dòng)開(kāi)關(guān)和頂桿的距離一般大于0.2mm,壓力繼電器裝在氣路(或水路、油路)的分支管路中。當(dāng)管路壓力超過(guò)整定值時(shí),通過(guò)緩沖器、橡皮薄膜抬被動(dòng)層。當(dāng)溫度起頂桿,使微動(dòng)開(kāi)關(guān)動(dòng)作,使觸頭129和130斷開(kāi),129和131閉合。若管路中壓力低于整定值后,頂桿脫離微動(dòng)開(kāi)關(guān),使觸頭復(fù)位。
壓力繼電器的調(diào)整,非常方便,只須放松或擰緊調(diào)整螺母即可改變控制壓力。
REFURBISHED Allen-Bradley 7300-UPW-1 Interface Board
New GE Speedtronics IC3650 SGDB2 Board IC3650SGDB2
New GE Speedtronics IC3600 TPSE1 Board IC3600TPSE1
NEW ABB SNAT-7780-GIF Main Control Board 576180781
NEW Heidenhain LS176 ML340 Linear Scale
Refurbished FANUC A20B-0010-0130/05A Control Board
DVT LEGEND 530M MACHINE VISION SENSOR
Siemens 6FX-1111-1AA00 System 3 Encoder Module
NEW National Electronics NL-1092 IGNITRON Unit
Allen-Bradley 7300-UAE-9 CNC Control Board
Cincinnati Milacron 3-531-3280A Timer Circuit Board
FANUC A16B-2200-0854/03B Axis Control Drive Board
Honeywell 51402447-100 EPDGC I/O Control Board
New INDUCTOHEAT 31035-901 Feedback Control Board
NEW STI SYS VS650048-0.50-A401-AC1 VALUSCAN SYSTEM
OCL 610-297-3891-C
Gates Corporation 4430V772 Multi-Speed Belt
Barksdale DPD1T-A150SS
International Power IHA5-1.2/OVP Linear power Supply
Hewlett Packard HP 355C VHF Attenuator
Haldex KN47081 Manual Brake Adjuster - Straight Arm
Raxxes RFM-42 Relay Floor Rack Mount Base NEW
Swagelok Brass Threded 1/2" Tube
Euchner TZ2RE024SR11 TZ Safety Interlock Switch NEW
Total Source D-481580X7147A Forklift Motor 0.75 HP
Ingersoll Rand E2630 99403057RM Servo Motor
A.O.Smith FEH1056S Motor F48SQ6V64A1 AO Smith 3PH
Dedoes Paint Mixer Motor Bluffton 1121007441 w/ Gear
SICK CLV420-0010 Barcode Scanner
Ultimate RIDE Remote Control for Ultimate Seat NEW
Schneider Electric MODBUS PXP-3148MB Port Expander
StoneL JMS0311C9 Switched Protection Drop Connector NEW
Accu-Sort Sentient RFR-04 RFID
Banner Beam-Array BMR416-33631
Reliance Electro-Craft E588 Servo Motor 0588-31-502
Turck CDN-IM-16-0003 Bus Stop Inter
Laserguard 3100H5 Green Surface Protection 36"x1650ft
Turck CDN-IM-8-0024 Bus Stop inter
NEW Rizor Sports Womens Field Cleats Navy R1RT sz 6.5
TII Network 96-00-1-1 ADSL-EXTPOTS Splitter Module NEW
NEW Rizor Sports Womens Field Cleats Navy R1RT sz 11
KNAPP Systemintegration GmbH Terminal Unknown product
ORTRONICS OR-M2LCQ24-50E CASSETTE,M2,HIGH DENSITY,1U
Allen-Bradley 1336F-BRF30-AN-EN AC Drive 460V Repaired
Avtron M685L Encoder M685L-51-HP1-HP1 M685L51HP1HP1
Cosmo LZ-1000 Digital Leak Tester
Ziatech ZT-8832 PC Board Memory Card
Ziatech ZT-8832 PC Board Memory Card
Phytron ZMP 92/70 Stepper Motor Control Unit 73200278
Moog Components BN23-28BE-04CHP Servo Motor
Motorola Automatic Drive Unit
Texmate RP4500D2 LED Differential Input Panel Meter NEW
SolaHD GLT-05-065 Switch Mode Power Supply 5V NEW
Honeywell 621-9934 I/O Rack Power Supply PLC
IRT-System 120441 X-Clip Infrared Lamp 1000W 220-250V
Progress Lighting Mission Lantern P5759-33 NEW
Candid Logic 103051 2 Channel High Current Amp Board
Teadit 2138 Braided Packing Graphite Ramie Yarn 1" 10ft
Minster 490-0246 Digital Speed Meter Electronic Display
Cutler-Hammer C515ZNA Solid-State Controller Used