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  • 液压原件都有那些?
  • 本站编辑:杭州派跃威流体设备有限公司发布日期:2019-12-11 20:34 浏览次数:

液压件厂家液压系统所涉及到的配件如下:

液压泵:柱塞泵,齿轮泵(分内啮合,外齿),螺杆泵,叶片泵,静音螺旋泵(我公司独家代理),控制方式也很多分法。

液压阀:伺服阀,比例阀,伺服比例阀,换向阀,减压阀,节流阀,调速阀,液压锁,单向阀,溢流阀,电磁溢流阀,同步阀,同步马达,防爆阀等。结构有板式,管式,螺纹插装,二通插装,叠加式。

液压执行机构:液压缸,液压马达。

附件:过滤器,压力表,压力传感器,温度表,温度传感器,压力继电器,压力表开关,排气阀,球阀,蝶阀,减震垫,钟罩联轴器,电机,液位计,位移传感器,胶管总成,过渡接头。

液压系统及各类液压件问题总结

01、液压系统好长时间没有用,这次开机后,震动特别厉害,噪音很大,不知道是什么原因?

总结:可能是长时间放置,蓄能器氮气泄露,没起到减少脉动的作用。检查氮气的压力,补压或者更换皮囊。噪音是由于振动太大而产生的,没有了震动,就会消除。

02、油缸工作不正常,只能出不能回,是什么问题?

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总结:检查油缸的另一端是否出油,电磁阀是否换向,油缸内泄是不是特别严重。回油管路是否被异物堵死。

03、油缸启动压力高是怎么回事啊?有什么危害?怎么解决?

油缸启动压力高和油缸的制造质量(如活塞杆弯曲、缸筒弯曲等)、密封的形式和安装等因素有关。对于伺服油缸,启动压力高会影响其的动态特性。对于普通油缸,启动压力的要求没有伺服油缸那样严格,但是也不能太高。一旦发现启动压力高,需要认真对油缸的零件进行尺寸复测,并检查密封的安装质量。

总结:1、内部阻力过大。2、外部执行部分有机械故障。

油缸的启动压力与油缸的设计结构有关,油口与活塞接触的受力面积,如油口的大小即活塞初始启动的受力面积,启动压力就高,油口与活塞接触间加工受力面积腔(启动压力腔)启动压力就很小。

04、液压系统油缸要求同步有什么好的建议?

总结:在支管路上加单向节流阀,价格比较便宜。 要求比较高就加个分流节流阀,造价高,但效果较好。

05、液压系统维修率特别高,主要原因是什么?

主要原因是环境恶劣,液压系统是比较精密的设备,平常要多注意保养,油质要好,加油时要过滤,系统密封要好。各类检测设备要完善,需要有专业的人员对系统的工作情况进行记录和维护。

06、液压缸动作不规则该怎么办?

总结:

1、可能是液压管路混杂有空气,需要找出混入空气的部位,然后清洗检查,重新安装和更换元辅件。

2、也有就是油缸磨损严重,需修理或者更换。

3、电磁阀换向不规则,需要检查电炉部分

4、电液伺服、比例阀的放大器失灵或调整不当。

一只动一只不动,当第一只故障的时候第2只开始工作,请问2个液压站之间用什么器件连接比较好,其他都设计好了的,就差2个液压站之间的连接的实现

油泵启动需要时间,在第一个液压站故障到第二个液压站开始工作输出正常压力之间这段时间,需要保持其压力

总结:通过压力继电器,将压力信号转换为电信号传至备用泵即可。

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.