When designing the valve block, the initial thickness of the valve block is set to be 5 times of the maximum diameter, and then gradually according to the specific design
Shrink; When designing the channel, the channel shall be reasonably arranged to minimize deep holes, inclined holes and process holes, and large flow shall be arranged first
The measuring channel is finally the pilot oil channel, and the safety wall thickness between the channels shall not be less than 3~5mm
Considering the deviation of the drill bit within the allowable range, properly increase the spacing between adjacent holes; The hydraulic oil flow rate in the channel cannot be
Above 12m/s, the oil return channel is 20-40% larger than the oil inlet channel; Valve block oil inlet, working port, control port
Pressure tap to be machined; Each valve port shall be marked; The valve block with large mass must have a lifting screw port.
General provisions for valve body design:
1. The shape of valve block is generally rectangular hexahedron.
2. The valve block material should be 35 steel forgings or continuous casting blanks.
3. The maximum side length of the valve block should be no more than 600mm, and the number of two-way plug-in valve should be no more than 8.
4. When the hydraulic circuit contains more than 8 plug-ins, it should be decomposed into several valve blocks, and bolts should be used between each valve block
The bolts are connected with each other, and the connecting holes at the joint surface are sealed with O-ring to form an integral valve block group.
The rectangular performance of connecting bolts shall not be lower than 12.9.