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液壓件廠家液壓系統(tǒng)所涉及到的配件如下:
液壓泵:柱塞泵，齒輪泵(分內(nèi)嚙合，外齒)，螺桿泵，葉片泵，靜音螺旋泵(我公司家代理)，控制方式也很多分法。
液壓閥:伺服閥，比例閥，伺服比例閥，換向閥，減壓閥，節(jié)流閥，調(diào)速閥，液壓鎖，單向閥，溢流閥，電磁溢流閥，同步閥，同步馬達(dá)，防爆閥等。結(jié)構(gòu)有板式，管式，螺紋插裝，二通插裝，疊加式。
液壓執(zhí)行機(jī)構(gòu):液壓缸，液壓馬達(dá)。
附件:過濾器，壓力表，壓力傳感器，溫度表，溫度傳感器，壓力繼電器，壓力表開關(guān)，排氣閥，球閥，蝶閥，減震墊，鐘罩聯(lián)軸器，電機(jī)，液位計(jì)，位移傳感器，膠管總成，過渡接頭。
液壓系統(tǒng)及各類液壓件問題總結(jié)
01、液壓系統(tǒng)好長(zhǎng)時(shí)間沒有用，這次開機(jī)后，震動(dòng)特別厲害，噪音很大，不知道是什么原因？
總結(jié)：可能是長(zhǎng)時(shí)間放置，蓄能器氮?dú)庑孤?，沒起到減少脈動(dòng)的作用。檢查氮?dú)獾膲毫?，補(bǔ)壓或者更換皮囊。噪音是由于振動(dòng)太大而產(chǎn)生的，沒有了震動(dòng)，就會(huì)消除。
02、油缸工作不正常，只能出不能回，是什么問題？
總結(jié)：檢查油缸的另一端是否出油，電磁閥是否換向，油缸內(nèi)泄是不是特別嚴(yán)重?；赜凸苈肥欠癖划愇锒滤?。
03、油缸啟動(dòng)壓力高是怎么回事啊?有什么危害?怎么解決?
油缸啟動(dòng)壓力高和油缸的制造質(zhì)量（如活塞桿彎曲、缸筒彎曲等）、密封的形式和安裝等因素有關(guān)。對(duì)于伺服油缸，啟動(dòng)壓力高會(huì)影響其的動(dòng)態(tài)特性。對(duì)于普通油缸，啟動(dòng)壓力的要求沒有伺服油缸那樣嚴(yán)格，但是也不能太高。一旦發(fā)現(xiàn)啟動(dòng)壓力高，需要認(rèn)真對(duì)油缸的零件進(jìn)行尺寸復(fù)測(cè)，并檢查密封的安裝質(zhì)量。
總結(jié)：1、內(nèi)部阻力過大。2、外部執(zhí)行部分有機(jī)械故障。
油缸的啟動(dòng)壓力與油缸的設(shè)計(jì)結(jié)構(gòu)有關(guān),油口與活塞接觸的受力面積,如油口的大小即活塞初始啟動(dòng)的受力面積,啟動(dòng)壓力就高,油口與活塞接觸間加工受力面積腔(啟動(dòng)壓力腔)啟動(dòng)壓力就很小。
04、液壓系統(tǒng)油缸要求同步有什么好的建議？
總結(jié)：在支管路上加單向節(jié)流閥，價(jià)格比較便宜。 要求比較高就加個(gè)分流節(jié)流閥，造價(jià)高，但效果較好。
05、液壓系統(tǒng)維修率特別高，主要原因是什么？
主要原因是環(huán)境惡劣，液壓系統(tǒng)是比較精密的設(shè)備，平常要多注意保養(yǎng)，油質(zhì)要好，加油時(shí)要過濾，系統(tǒng)密封要好。各類檢測(cè)設(shè)備要完善，需要有專業(yè)的人員對(duì)系統(tǒng)的工作情況進(jìn)行記錄和維護(hù)。
06、液壓缸動(dòng)作不規(guī)則該怎么辦？
總結(jié)：
1、可能是液壓管路混雜有空氣，需要找出混入空氣的部位，然后清洗檢查，重新安裝和更換元輔件。
2、也有就是油缸磨損嚴(yán)重，需修理或者更換。
3、電磁閥換向不規(guī)則，需要檢查電爐部分
4、電液伺服、比例閥的放大器失靈或調(diào)整不當(dāng)。
一只動(dòng)一只不動(dòng)，當(dāng)靠前只故障的時(shí)候第2只開始工作，請(qǐng)問2個(gè)液壓站之間用什么器件連接比較好，其他都設(shè)計(jì)好了的，就差2個(gè)液壓站之間的連接的實(shí)現(xiàn)
油泵啟動(dòng)需要時(shí)間，在靠前個(gè)液壓站故障到第二個(gè)液壓站開始工作輸出正常壓力之間這段時(shí)間，需要保持其壓力
總結(jié)：通過壓力繼電器，將壓力信號(hào)轉(zhuǎn)換為電信號(hào)傳至備用泵即可。
The accessories involved in the hydraulic system of the hydraulic parts manufacturer are as follows:
Hydraulic pump: plunger pump, gear pump (internal mesh, external teeth), screw pump, vane pump, silent screw pump (our company's exclusive agent), and many control methods.
Hydraulic valve: servo valve, proportional valve, servo proportional valve, reversing valve, pressure reducing valve, throttle valve, speed regulating valve, hydraulic lock, one-way valve, relief valve, electromagnetic relief valve, synchronous valve, synchronous motor, explosion-proof valve, etc. The structure is plate type, tube type, threaded plug-in, two-way plug-in, superposition type.
Hydraulic actuator: hydraulic cylinder, hydraulic motor.
Accessories: filter, pressure gauge, pressure sensor, thermometer, temperature sensor, pressure relay, pressure gauge switch, exhaust valve, ball valve, butterfly valve, damping pad, bell cover coupling, motor, level gauge, displacement sensor, rubber tube assembly, transition joint.
Summary of hydraulic system and all kinds of hydraulic parts
01. The hydraulic system didn't work for a long time. After the machine was started, the vibration was very severe and the noise was very loud. What's the reason?
Summary: it may be that the accumulator nitrogen leaks after a long time, which does not reduce the pulsation. Check the pressure of nitrogen, supplement or replace the skin bag. Noise is caused by too much vibration. Without vibration, it will be eliminated.
02. The oil cylinder is not working normally and can only go out but can't go back. What's the problem?
Summary: check whether the other end of the oil cylinder is discharging oil, whether the solenoid valve is reversing, and whether the internal leakage of the oil cylinder is particularly serious. Check whether the oil return pipeline is blocked by foreign matters.
03. What's the matter with high starting pressure of oil cylinder? What's the harm? How to solve it?
The high starting pressure of oil cylinder is related to the manufacturing quality of oil cylinder (such as the bending of piston rod, cylinder barrel, etc.), the form of sealing and installation, etc. For servo cylinder, high starting pressure will affect its dynamic characteristics. For ordinary oil cylinder, the requirement of starting pressure is not as strict as that of servo oil cylinder, but it can not be too high. Once it is found that the starting pressure is high, it is necessary to carefully retest the dimensions of the parts of the oil cylinder and check the installation quality of the seal.
Conclusion: 1. Too much internal resistance. 2. There is a mechanical fault in the external executive part.
The starting pressure of the oil cylinder is related to the design structure of the oil cylinder. The force area of the oil port in contact with the piston, such as the size of the oil port, is the force area of the initial start of the piston. The starting pressure is high, and the starting pressure of the machining force area cavity (starting pressure cavity) between the oil port and the piston is very small.
04. What are the good suggestions for synchronization of hydraulic system cylinder?
Conclusion: it is cheaper to add one-way throttle valve on branch pipeline. If the requirement is relatively high, a diverter throttle valve is added, which has high cost but good effect.
05. The maintenance rate of hydraulic system is particularly high. What are the main reasons?
The main reason is that the environment is bad, the hydraulic system is a more sophisticated equipment, usually more attention should be paid to maintenance, the oil quality is good, the oil should be filtered, and the system seal is good. To improve all kinds of testing equipment, professional personnel are required to record and maintain the working conditions of the system.
06. What should be done if the hydraulic cylinder acts irregularly?
Conclusion:
1. It may be that the hydraulic pipeline is mixed with air, so it is necessary to find out the parts mixed with air, clean and check them, reinstall and replace the components and accessories.
2. The oil cylinder is seriously worn and needs to be repaired or replaced.
3. The reversing of solenoid valve is irregular, and the electric furnace needs to be checked
4. The amplifier of electro-hydraulic servo and proportional valve is out of order or improperly adjusted.
When the first one fails, the second one starts to work. What kind of devices are used to connect the two hydraulic stations? If everything else has been designed, the connection between the two hydraulic stations will not be realized
It takes time for the oil pump to start. During the period from the failure of the first hydraulic station to the start of the second hydraulic station to output normal pressure, it is necessary to maintain its pressure
Summary: through the pressure relay, the pressure signal can be converted into electrical signal and sent to the standby pump.
