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Qingdao North Torh Machine Tool Co.,Ltd

TEL:+86-532-87884567

PHONE:+86-18765954567

E-MAIL:Annasun@ntmt.com.cn

ADD :No.78 of Fuqiang Road, Chengyang District,Qingdao.China

CONTACT:Mr Hu

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Malfunction & reason Analysis of liquid flow of floor ty

TIME:2021-04-20 18:31:42 source:未知 CLICK:

Due to the rapid movment of selector valve of floor type lathe, when moving to the middle position, pressure oil suddently cut off from the hydraulic cylinder. At the same time,  due to the inertia movinging parts and liquid flow, which makes the oil liquid in the oil chamber of hydraulic cylinder compressed, and the pressure increases sharply, while the pressure in the another oil chamber drops, which forming a local vacuum. Meanwhile, because the pressure oil suddently is cut off, which also creates high pressure and formed a shock.
 
Troubleshooting and Maintenance of liquid flow of floor type lathe
 
Improve the structure of the control side of inlet and return oil of the directional valve spool, The liquid flow changes gradually during reversing, which can reduce or avoid the formation of impact. The improved method is to make the control edge of the reversing valve spool into a cone Angle of 1.5°~4°, and the cone length is determined according to the length of the sealing edge.

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