Leakage-free gear oil pump
Contact Info
- North Section of Industrial Road, Yutai County Economic Development Zone,
- 吴经理
- 13012608150
- 15314489@qq.com
I. Overview of 2CY and KCB Gear Oil Pumps
The 2CY and KCB gear-type oil pumps are horizontal rotary pumps with a flow rate range of 0.045-30 m³/h, a pressure range of 0.7-20 MPa, and a working speed of 1200-4000 r/min. They are widely used in industries such as petroleum, chemical engineering, shipbuilding, power, grain and oil, food, medicine, building materials, and metallurgy. They are suitable for transporting lubricants or heavy oils, diesel, and lubricating oils with a temperature below 180°C and a viscosity of 5-1500 cSt. Equipped with copper gears, they can transport liquids with low ignition points. Stainless steel gear pumps can also be produced for transporting beverages and corrosive liquids.
II. Structure of 2CY and KCB Gear Oil Pumps
The 2CY and KCB gear-type oil pumps mainly consist of components such as a pump body, gears, bearing brackets, pressure relief valves, bearings, and sealing devices. They are directly connected to the driving motor via elastic couplings and installed on a common cast iron base. The pump body, bearing brackets, etc., are made of gray cast iron, and the gears are made of carbon steel; they can also be made of copper or stainless steel according to special user requirements. There is a stuffing box chamber on the bearing bracket, which serves as an axial sealing function. For KCB-300～960 type pumps, skeleton sealing devices are adopted (sealing forms can also be replaced according to customer needs, for example: mechanical seals). Single-row radial ball bearings are used. For KCB-18.3～83.3 type pumps, they are composed of two oil-resistant rubber rings and a spacer ring in between. The sealing degree is adjusted by two nuts on the compression cover, and copper-based powder oil-impregnated bearings are used. In addition, all pumps in this series can use flexible graphite as packing, which has good elasticity, high and low temperature resistance, stable chemical properties, and self-lubricating performance. A pressure relief valve is installed inside the pump. When a fault occurs in the pump or the discharge pipeline, or when the discharge valve is mistakenly closed, generating high pressure and high impact, the pressure relief valve will automatically open, releasing part or all of the high-pressure liquid back to the low-pressure chamber, thereby protecting the pump and the pipeline.
III. Working Principle of 2CY and KCB Gear Oil Pumps
This type of pump is equipped with a pair of rotating gears inside the pump body, one driving and one driven. Through the meshing of the two gears, the entire working chamber inside the pump is divided into two independent parts: the suction chamber and the discharge chamber. When the pump operates, the driving gear drives the driven gear to rotate. When the gears transition from meshing to disengaging, a local vacuum is formed on the suction side, and liquid is sucked in. The sucked liquid fills each tooth groove of the gears and is carried to the discharge side. When the gears enter meshing, the liquid is extruded, forming high-pressure liquid and discharging it out of the pump through the pump's discharge port.
IV. Model Parameters of 2CY and KCB Gear Oil Pumps
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