Beihong Pump Industry specializes in the production of Roots oil pumps for many years. The pump body has a minimum service life of 10 years, a minimum continuous operation period of 10 years, and a half-year company warranty for wearing parts. The pump unit is allowed to operate outdoors, but it is not suitable to operate in the open air. For extremely low temperature applications, an insulated Roots oil pump should be selected. The pump body can withstand the maximum pressure. If working conditions greater than this pressure may occur in the pipeline or equipment, the user should install the pump at the outlet of the pump. Access safety protection device.
The factory Roots oil pump units have all passed the oil clean test on the test bench to detect pressure, flow and vibration, and are qualified. The maximum liquid viscosity, particle and abrasive content, wear allowance, etc. are all designed according to the working conditions provided in the technical agreement, and the user should ensure that they are used under different working conditions.
Basic design conditions
Pump casing Within the normal working pressure of the pump casing, the extreme pressure does not exceed the limit. There is a lifting lug directly above the pump casing. The pump body is equipped with a temperature-adjusting jacket. Under low temperature conditions, use.
The inlet and outlet of the shell pipe are connected with standard flanges, and matching flanges are provided for welding by the user. Flanges are located on both sides of the pump, making it easy to install and remove using square pipes.
The external load inlet and outlet flanges can withstand forces greater than 100, and torques greater than 100,000. Install the pipeline to avoid subjecting the pump to large deflection forces, otherwise it will easily cause failure and increase the amount of noise.
There is no contact between the distribution gear of the rotating parts and the box body, and there is no direct friction between the rotor and the flow chamber. The rotor is made of alloy steel and has been nitrided heat treated to be wear-resistant. The distribution gears are divided into two groups, the reduction gear set and the synchronous gear set. The reduction gear set is a helical gear and the synchronous gear set is a spur gear. Both sets of gears are protected by oil bath.
Skeleton oil seal machine oil seal body, reinforced skeleton and self-tightening coil spring. The sealing body is divided into bottom, waist, cutting edge and sealing lip according to different parts. Usually, the inner diameter of the skeleton oil seal in the free state is smaller than the shaft diameter, that is, it has a certain amount of interference.
Therefore, when the oil seal is inserted into the oil seal seat and the shaft, the pressure of the oil seal cutting edge and the contraction force of the self-tightening coil spring produce a certain radial tightening force on the shaft. After a period of operation, the pressure will quickly Reduce or even disappear. Therefore, adding a spring can compensate for the self-tightening force of the oil seal at any time.
Bearing Bearing life Under rated operating conditions and maximum load, there is an oil quantity sight window on one side of the bearing box and an oil drain hole on the bottom side.
Lubricated bearings and gears are both oil bathed and lubricated with hydrocarbon oil. It is recommended to use heavier oil, and the initial engine oil should be heavy engine oil. Users should pay attention to changing the engine oil in time. It is recommended to replace it after the first time, replace it after the second time, and replace it after that.
Material: The pump body is made of cast steel, without welding, and has passed the flaw detection test. The flange is made of low carbon steel and the matching flange is also made of low carbon steel. The user should be aware of this.
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