Dump truck parts manufacturers tell you that the main part of the cylinder is the cylinder head. Cylinder head. Cylinder barrel. Piston. Piston rod. Guide sleeve.
Seals and pull rods.
1. Cylinder head and head: usually made of rolled steel or cast iron.
2. Cylinder: The inner hole of seamless steel pipe is generally processed to high finish, which can reduce friction and extend sealing life. Most pistons are made of cast iron or steel, and the piston is fixed to the piston rod. On most cylinders, exhaust and buffering are available options and can often be added without changing the profile size.
3. Piston rod: The piston rod is generally high-strength steel with carburized and quenched surface. Grinding. For wear and corrosion resistance, polishing and hard chrome plating. Corrosive atmospheric conditions usually require stainless steel rods, which can be chrome plated or nickel plated and then hard chrome plated to meet the requirements of corrosion resistance.
4. Guide sleeve: used to support the piston rod before and after movement, mostly made of ball ground cast iron, usually do not remove the whole cylinder can be removed. Rod seals usually include a dust ring to remove dust and contamination from the rod and prevent dirt from being sucked into the main seal to seal the oil pressure in the cylinder. The high pressure cylinder also needs to increase the oil pressure buffer ring before the main seal to reduce the oil pressure borne by the main seal ring and improve the sealing effect and service life of the main seal ring.
5. Sealing parts: generally using Ding Qing rubber. Polyurethane. Production of fluororubbers or filled polytetrafluoroethylene. In general, O-rings are used for static seals, such as cylinders and guide bushings. Y-ring seals such as pistons and pistons. V Seal ring or combination seal for sealing piston and piston rod. Parker’s special polymer material product is the piston support ring. Prevents fouling in harsh working conditions and high dust environments. Dust settled on the piston rod.
6. Tie rod: usually high strength steel, with cut or friction threads. Although it is sometimes necessary to use a lock nut, the use of appropriate torque prestressing prevents the part from separating and locking the nut when under pressure.
