Hydraulic adaptors drawbacks:
(1) it is a hydraulic transmission fluid as the working medium, the relative motion between the surface there is inevitably leak, while the liquid but not absolutely incompressible, it would be inappropriate in the case of the transmission ratio demanding use.
(2) hydraulic hose adapters with more energy loss in the course of their work, such as friction loss, leakage losses, it is not appropriate for long-distance transmission.
(3) Hydraulic system sensitive to changes in oil temperature, oil temperature changes affect the stability of the movement. Thus, at low and high temperature conditions, the use of hydraulic drive there are certain difficulties.
(4) In order to reduce leakage, manufacture of high precision hydraulic components and therefore high manufacturing costs of hydraulic components, but also more sensitive to oil pollution.
Hydraulic Power Unit
2015年8月25日星期二
2015年8月18日星期二
Hydraulic equipment hydraulic drive advantages
Hydraulic machines hydraulic drive advantages:
1) in the same volume, pipe bender hydraulic device can produce more power than the electrical device, because bender hydraulic pressure in the system may be larger than the 30 to 40 times the magnetic armature field. Under the same power, volume bender hydraulic device is small, light weight, compact structure.
2) The hydraulic device work is relatively stable. Because of the light weight, small inertia, fast response, easy to implement hydraulics pipe bender quick start, braking and frequent commutation.
3) hydraulic hose machine to achieve stepless (speed range up to 2000) in a wide range, it can be in the process of running speed.
4) hydraulic drive easily automated, because of its fluid pressure, flow, or flow direction is easy to adjust or control reasons.
5) bending machine hydraulic device easy to implement overload protection.
6) Since the pipe bender hydraulic components have been designed to achieve standardization, serialization and generalization, bending machine hydraulic systems are relatively easy to manufacture and use.
7) with a bending machine hydraulic drive to achieve linear motion than by simple mechanical transmission.
1) in the same volume, pipe bender hydraulic device can produce more power than the electrical device, because bender hydraulic pressure in the system may be larger than the 30 to 40 times the magnetic armature field. Under the same power, volume bender hydraulic device is small, light weight, compact structure.
2) The hydraulic device work is relatively stable. Because of the light weight, small inertia, fast response, easy to implement hydraulics pipe bender quick start, braking and frequent commutation.
3) hydraulic hose machine to achieve stepless (speed range up to 2000) in a wide range, it can be in the process of running speed.
4) hydraulic drive easily automated, because of its fluid pressure, flow, or flow direction is easy to adjust or control reasons.
5) bending machine hydraulic device easy to implement overload protection.
6) Since the pipe bender hydraulic components have been designed to achieve standardization, serialization and generalization, bending machine hydraulic systems are relatively easy to manufacture and use.
7) with a bending machine hydraulic drive to achieve linear motion than by simple mechanical transmission.
2015年8月11日星期二
Hydraulic pump parts advantages and disadvantages
Pump hydraulic adaptors main rotor, stator vanes, valve plate, pump and shaft and other parts, vane pump is closed by means of a volume change to realize blots and rows, vane pumps can be divided into single-acting and double-acting vane pump vanes.
Advantages of the hydraulic pump parts in hydraulic machines: uniform flow, smooth operation, low noise, small size, light weight. Mianshaozhuanji vane pump hydraulic pump parts Disadvantages: working pressure is not high, medium and low pump generally 8MP, the widespread use of pumps and can be reached 25-30MP; poor vane pump dirt capacity, complex manufacturing process, in addition to single-action blade Pump reason the imbalance, so the short-lived.
Advantages of the hydraulic pump parts in hydraulic machines: uniform flow, smooth operation, low noise, small size, light weight. Mianshaozhuanji vane pump hydraulic pump parts Disadvantages: working pressure is not high, medium and low pump generally 8MP, the widespread use of pumps and can be reached 25-30MP; poor vane pump dirt capacity, complex manufacturing process, in addition to single-action blade Pump reason the imbalance, so the short-lived.
2015年8月4日星期二
British interlock hose fittings Composition
Interlock Hose Fittings at both ends by the joint body, one-way valve spool, jackets, balls, springs and seals and other components. A hose connector body cavity has a one-way valve, when the two connector body separate from the one-way valve spool in the respective spring overhang, and top pressure on the tapered hole of the connector housing, so that path close , oil on both sides of the inner tube is enclosed in the tube can not flow; when the two connector body connecting the two rams touching the front of the check valve spool, spool forced to leave the conical hole of the connector housing, the inner sides of the tube oil interlinked, two steel ball locking connector body, work, housing under spring pressure of the U-shaped groove in the ball joint bodies, the joint body connection.
These connectors facilitate the demolition, but the structure is more complex, local resistance to greater losses for oil and gas pipeline system for the medium.
These connectors facilitate the demolition, but the structure is more complex, local resistance to greater losses for oil and gas pipeline system for the medium.
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