Double Lubricated Thrust Bearing Device of Centrifugal Pump
A technology of thrust bearings and centrifugal pumps, which is applied to parts, pumps, and pump elements of pumping devices used for elastic fluids, and can solve problems such as neutral deviation, increased force of pump shaft and rotor, and prolong service life , Reliable lubrication performance, and the effect of reducing maintenance costs
Active Publication Date: 2016-09-07
ZHEJIANG KEER PUMP
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Problems solved by technology
The deviation from the neutrality is easy to cause the rotor force of the pump shaft to increase
Method used
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[0009] refer to figure 1 , figure 2 It can be seen that the present invention is applied to the double-lubricated thrust bearing device of the low specific speed narrow channel type high-power centrifugal pump, including the bearing body 1, the bearing cover 4, the sliding bearing 3 (and the sliding bearing pressure ring 18), the rolling bearing 7 1. Oil throwing ring 2 (two pieces, one in the sliding bearing 3 and the other on the side of the rolling bearing 7), the bearing cap 4 is provided with an oil supply port 5, and an oil injection port near the rolling bearing 7 An oil supply channel 16 is formed between the oil supply port 5 and the oil injection port 6, and an oil level separator 11 is provided on the inner wall (both sides) of the bearing body 1 to form a lubricating oil pool 12. An oil return port 10 is provided on the bearing body 1 and on the outer side of the oil level separator 11 .
[0010] Wherein, the bearing body 1 and the bearing cover 4 are equipped w...
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The invention discloses a double-lubricated thrust bearing device of a centrifugal pump, which comprises a bearing body (1), a bearing cover (4), a sliding bearing (3), a rolling bearing (7), and an oil throwing ring (2). The bearing cover is provided with an oil supply port (5) and an oil injection port (6) close to the rolling bearing. An oil supply channel (16) is formed between the oil supply port and the oil injection port. An oil supply channel (16) is formed on the inner wall of the bearing body. There is an oil level baffle (11) to form a lubricating oil pool (12), and an oil return port (10) is arranged on the bearing body and at the outer side of the oil level baffle. The invention adopts forced lubrication and self-lubricating methods, and can also adopt fan forced cooling methods to make its lubricating performance more reliable, and can effectively solve the problem of neutral deviation of pump equipment, so that the rotor force and axial force of the pump shaft can be maintained Within the normal value range, it is especially suitable for pumping equipment in arid and water-poor areas.
Description
technical field [0001] The invention relates to a centrifugal pump, in particular to a thrust bearing device of the centrifugal pump. Background technique [0002] At present, the thrust bearing device (power ≤ 800, including sliding bearings and rolling bearings, etc.) of low specific speed and narrow flow channel centrifugal pumps generally adopts rolling bearings with oil throwing rings for self-lubricating with thin oil; Oil forced lubrication; when the power is relatively high and between this limit value, since the impeller outlet and the guide vane inlet of the small flow high-lift centrifugal pump are relatively narrow, the difference between the opening value of the guide vane and the impeller is relatively small. It is very difficult to align the flow channel with the shell. The deviation from neutrality is prone to increase the rotor force of the pump shaft. In order to improve the rotor force and axial force caused by bearing the deviation from neutral, a thrus...
Claims
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IPC IPC(8): F04D29/046F04D29/06F04D29/58
Inventor 夏益洪陈杰李良特池武池庆杰倪秀栋
Owner ZHEJIANG KEER PUMP