In order to meet the needs of developing large-tonnage dump trucks, after nearly one year's efforts, the technical personnel of Shijiazhuang Coal Mining Machinery Co., Ltd. have successfully developed a new type of CBT-E580 gear oil pump. The performance parameters are: rated displacement 80ml/r, rated pressure 16MPa, rated speed 2000r/min, maximum pressure 20MPa, maximum speed 2500r/min.
The new CBT-E580 gear oil pump consists of a housing, front cover, gears, side plates, bushings, etc. The bimetal side plates are used between the gears and the bushes to improve the wear resistance between the gears and the side plates. Increase the service life of the oil pump. The seal on the side plate seals the high-pressure oil between the two side plates of the shell, which reduces the stress on the shell and improves the reliability of the oil pump; the high-pressure oil acts on the outside of the side plate and generates axial pressure compensation, so that the side plate The minimum clearance is maintained with the gear end face, reducing the leakage and improving the volumetric efficiency of the pump. In addition, the shell adopts extruded aluminum profiles, and the strength of the shell is increased by 1.3 times. In order to reduce the force on the gears, a radial balance structure is adopted to reduce the radial force; the tip circle is increased and the number of teeth is reduced. Pump volume, heat and noise. The above series of measures will help improve the strength and service life of the pump. After the batch experiment of the pump, all technical indicators have reached the requirements of the first-class products in JB/T58211, and the performance is reliable and stable in quality.
The new CBT-E580 gear oil pump consists of a housing, front cover, gears, side plates, bushings, etc. The bimetal side plates are used between the gears and the bushes to improve the wear resistance between the gears and the side plates. Increase the service life of the oil pump. The seal on the side plate seals the high-pressure oil between the two side plates of the shell, which reduces the stress on the shell and improves the reliability of the oil pump; the high-pressure oil acts on the outside of the side plate and generates axial pressure compensation, so that the side plate The minimum clearance is maintained with the gear end face, reducing the leakage and improving the volumetric efficiency of the pump. In addition, the shell adopts extruded aluminum profiles, and the strength of the shell is increased by 1.3 times. In order to reduce the force on the gears, a radial balance structure is adopted to reduce the radial force; the tip circle is increased and the number of teeth is reduced. Pump volume, heat and noise. The above series of measures will help improve the strength and service life of the pump. After the batch experiment of the pump, all technical indicators have reached the requirements of the first-class products in JB/T58211, and the performance is reliable and stable in quality.
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