NEWS
Shandong Shengya Machinery Co., Ltd. specializing in the production of various types of brick, brick machine, brick machine, hollow brick, pavement brick and other equipment of the old brick factory.
Liquid PRESS is a common brick machine, also known as Mianshaozhuanji, block machine. Often using a hydraulic system, for the machinery and equipment, often only some failures, affecting its production and development, improve the quality of production also has some limitations. The main reason there are the following:
Superheating: Atsushi shovel vent weight (seals aging, damage, etc.), the system design is unreasonable (improper selection of hydraulic components specifications), pipeline design and installation of large pressure loss caused by an irrational, mechanical loss caused by hydraulic oil fever (element machining and assembly bad), increased pressure adjustment too high energy consumption, poor heat dissipation system.
Crawling reasons: poor drive rigidity, air enters the oil at low pressure will escape, forming bubbles, cavitation, hydraulic oil have significant flexibility, resulting in poor driving rigidity caused by crawling Korea.
Hydraulic components gap, the gap width big oil spill pump actuator produce serious cause crawling; curse Nicon various control valve or orifice is dirt clogging the spool does not move freely j pressure fluctuations, resulting thrust or When flow generated when the small crawling; valve parts wear, so that the gap is too large, causing pressure leak. Inadequate power generation crawling.
Friction caused by the change of crawling (such as pressure Fou center tuck money is not parallel with the piston rod, the rod bent partial or full-length cylinder out of round or scratched, rod ends and other tight seal adjust the spool is jammed Cause: The slide valve motion pair geometry errors large or cause changes in radial misalignment unbalanced force can be set up even in the face of the spool groove, improve Ba spermatogenesis spool valve hole of Pi card with the gap; at the same time improve the hydraulic oil clean-invasive spool.
Vibration and noise reasons: a gas suction line or suction pipe too much resistance, oil viscosity is too high, too low, oil filter blockage and the like, at work sucked into a lot of air, causing cavitation and vibration noise, it can increase suction pipe diameter, choose the appropriate hydraulic Wang, clean or replace the filter and so on. Improper selection of hydraulic components such as maintenance for parts used in hydraulic pumps, control valves and other components failed.
Control valves in poor condition, as with the seat sealing bad or biased, the regulator spring fatigue or damage, orifice spool blocking action not working and so it can cause vibration and noise. Trapped oil will have a strong noise gear pump, vane pump vanes are stuck in the groove, etc. can also cause noise, consider re-election pump. Different axis of the motor and coupling have errors or loose coupling and fittings, bearing damage, etc. will cause mechanical noise.
Hydraulic shock Cause: no buffer flow reversal effect, for forward flow after changes are too abrupt, solenoid valve for the action too fast, the valve and the valve with the gap is too large, and this will cause hydraulic shock.
Cylinder stroke ends no buffering means or improperly adjusted, the piston and the cylinder head collision. Check valve seal oil hydraulic cylinder cushion device adverse (eg, end cap paper pad damage, with the clearance between the piston and the cylinder bore is too large, loose or improperly adjusted throttle nut outer edge and cover both ends of the piston bore the gap is too big, so that can not afford to buffer triangular groove, etc.). Adjust system pressure is too high or the system memory large volume of air and the like.
Leak Cause: The system pressure is adjusted too high; too much and loose pipe joints, joints or each seal face bad; inappropriate choice of seals, damage, aging, and improper assembly; oil temperature is too high.
Mechanical maintenance and repair can reduce the incidence of failure, and can not prevent the failure occurred, and therefore, the production operator should always pay attention to maintenance and repair, as much as possible to reduce the failure, a serious understanding of their familiar production principle and structure characteristics, in order to promptly solve the case of a fault in the production process.
Shandong Shengya Machinery Co., Ltd. has been committed cement products machinery development, production and sale of advanced equipment, superb technical expertise and two decades of experience, the company has always been at the forefront of research and development center block molding machine market development Follow the advanced technology at home and abroad, to develop products for different investment needs of users, mainly block making machine, hydraulic tile machine, cement pipe machine, mixer, hanging roller machine, telephone poles machine equipment. At present the country with 19 offices and six overseas plants (Nigeria, Tanzania, Algeria, Kenya, Mozambique, Ethiopia) and exported more than 100 countries and regions.




