excavator parts online

Kyushan Machinery Parts is a professional supplier of excavator parts with sufficient supply, quality assurance and strong strength in the construction machinery industry for many years! Professional sales: Komatsu excavator parts, Hitachi excavator parts, Kato excavator parts, Kobelco excavator parts, Carter excavator parts, Hyundai excavator parts, Doosan Daewoo excavator parts, Sumitomo excavator parts, Volvo excavator parts, etc. All kinds of brand excavator accessories. Manufacturers produce and sell four-wheeled and one-belt chassis parts: rollers, drag sprockets, guide wheels, drive teeth, chains, track assemblies, chain links, chain shafts, chain plates, chain links, chain guards, tensioning cylinders, tight springs, etc.; Engine accessories: four sets of engine, cylinder block, crankshaft, camshaft, connecting rod, size tile, thrust plate, overhaul kit, intake and exhaust valve, seat ring, conduit, fuel injector, diesel pump, oil suction pump, oil transfer pump , oil pump, water pump, starter motor, generator, supercharger, fan, belt and other engine accessories;

The working principle of the excavator hydraulic swivel joint: When the excavator is working, its chassis and the upper operating body need to perform relative slewing motion. How to realize this movement that requires 360° rotation requires the core component of the excavator hydraulic swivel joint. When the excavator rotates, the hydraulic oil is delivered to the travel motor through the excavator hydraulic swivel joint, the hydraulic oil is connected from the main control valve to the internal cylinder, and the travel motor oil circuit is connected to the casing structure. The inner cylinder is cast with annular grooves (ie oil passages) from top to bottom, and the outer casing is also cast with small grooves corresponding to the grooves (used to install the rotary joint sealing ring). When the machine rotates, the casing is fixed, and there is relative movement between the inner cylinder and the casing (the cylinder rotates in the casing). Because the oil passage is circular, the machine can be turned arbitrarily within the circumference range, and the casing oil passage can be kept connected with the corresponding mandrel oil passage to realize continuous rotation. The central slewing joint for excavators consists of two parts: the inner cylinder and the outer shell, the shell is provided with a flange, which is fixed to the center of the slewing bearing, the shell is connected to the upper pipe, and the mandrel is connected to the lower pipe road.