KAWASAK K3SP36C hydraulic pump is suitable for TQ 308B E70B excavator main pump

Hydraulic pump is to convert machine energy into liquid pressure energy. We commonly see (for excavators and loaders) gear pumps and plunger pumps. The gear pump works by the closed movement of the two meshing gears when they rotate. The gear pump is a gear transmission to provide power, and the gear pump is a quantitative pump, which is mostly used for low-precision medium and high pressure control.
Its main characteristics are: complex structure, convenient manufacture, low cost, high price, small size, light weight, good self-priming performance, insensitive to oil purifiTQion and reliable work.
The second defect is: large flow and pressure pulsation, loud noise, and unadjustable displacement.
It is widely used in various high pressure systems. Gear pumps have the lowest requirements for oil. At the earliest time, due to the low pressure, they were generally used in high-pressure systems (pilot pumps). Nowadays, the pressure of gear pumps can reach about 25MPA, which is often used on machines with low pressure requirements, but he The oil pulsation is large and cannot be changed. The advantage is that the self-priming function is good.
External gear pump is a hydraulic pump commonly used in hydraulic systems of loaders and local small excavators. There is a gear with opposite modulus and opposite number of teeth in the pump body, and the two end faces of the gear are sealed by the pump cover. The pump body, the end cover and the tooth grooves of the gears form a sealed volume, and the meshing of the two gear edges divides the sealed volume space into two parts, the oil suction chamber and the oil pressure chamber, and they do not communiTQe with each other in work. Due to the meshing of the gears, the volume of the seal is gradually reduced, and the oil in the tooth groove is squeezed and discharged from the oil discharge port. The gears rotate from time to time, and the volume of the oil suction and oil discharge chambers caused by the meshing of the gears changes, so that the oil suction chamber constantly absorbs oil, and the oil pressure chamber presses oil from time to time.
Gear pump for loader (double pump: one drive shaft drives two driven gears, with two oil suction chambers and two oil discharge chambers.)
At present, the international loader hydraulic system is basically a quantitative hydraulic system. The so-called quantitative hydraulic system means that the displacement of the hydraulic pump is unchanged, and it is basically a gear pump; there are also some exported models. The noise requirements are higher, and the vane pump is used; the remaining few models are equipped with variable hydraulic systems, which are basically configured as variable piston pumps.

Characteristic

1. The hydraulic pump can generate fluid flow in the hydraulic system.
2. The hydraulic pump is precisely designed;
3. Can be used with hydraulic system to meet the performance of filling products in the machine;
4. Strict requirements in terms of reliability, robustness, operating costs and productivity.
5. Hydraulic pumps are designed to meet specific machine requirements.

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