Guiding device of oil ring of sliding bearing
A technology of guiding devices and sliding bearings, which is applied to bearing components, shafts and bearings, engine components, etc., can solve the problems of high manufacturing cost of bearing pads, slow oil ring speed, and reduced bearing performance, so as to reduce processing costs and reduce Contact area, friction reduction effect
Inactive Publication Date: 2012-10-03
HUNAN CHONGDE IND TECH
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Problems solved by technology
Since only the groove of the bearing bush is used as the guiding device of the oil ring, in order to reduce the friction between the oil ring, the roughness of the side of the groove is required to be high, so that the manufacturing cost of the bearing bush is high; in order to prevent the oil ring from swinging too much in the axial direction, generally The gap between the groove and the oil ring is small, so that the side of the oil ring is often in contact with the side of the groove. Especially in the case of axial tilt or swing of the motor, there is contact between the oil ring and the groove. At this time, even if the surface of the groove If the roughness is very good, it will also generate a large side friction force, so that the oil ring speed will slow down or even stop, resulting in insufficient oil supply and the performance of the bearing will be reduced or even damaged.
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[0011] The present invention will be further described below in conjunction with the accompanying drawings.
[0012] Such as figure 1 As shown, the present invention includes a bearing bush 1 and two guide pieces 2. The bearing bush 1 is provided with a groove 11, and the two guide pieces 2 are U-shaped; direction at 45°.
[0013] Such as figure 2 As shown, when in use, the oil ring 3 hanging on the rotating shaft 5 is limited in the two guide pieces 2 to limit the axial swing of the oil ring 3 . The guide piece 2 separates the oil ring 3 from the side wall 6 of the groove, so that the contact between the oil ring 3 and the side wall 6 of the groove is transformed into the contact between the oil ring 3 and the guide piece 2 . When the rotating shaft 5 rotates, the outer diameter of the rotating shaft 5 and the inner diameter of the oil ring 3 contact to generate frictional force to overcome the frictional resistance between the oil ring 3 and the guide piece 2 to drive th...
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The invention discloses a guiding device of an oil ring of a sliding bearing. The device comprises a bearing bush, wherein the bearing bush is provided with a groove; and at least two U-shaped guiding sheets are arranged in the bearing bush groove. According to the invention, a structure is simple; manufacture cost of the bearing bush can be reduced; in addition, the guiding device can effectively limit the oil ring to swing axially; friction force between the oil ring and the guiding device is reduced; therefore, the rotating speed of the oil ring is increased when a rotating shaft is rotated in a high speed; and oil loading capacity of the oil ring is improved.
Description
technical field [0001] The invention relates to a sliding bearing oil ring guide device. Background technique [0002] Sliding bearings need enough lubricating oil for lubrication and cooling. The oil ring arranged in the groove of the bearing bush is driven by the friction force to rotate when the rotor of the motor rotates. The oil ring brings the lubricating oil in the oil chamber to the bearing for lubrication. To ensure the normal operation of the bearing. Since only the groove of the bearing bush is used as the guiding device of the oil ring, in order to reduce the friction between the oil ring, the roughness of the side of the groove is required to be high, so that the manufacturing cost of the bearing bush is high; in order to prevent the oil ring from swinging too much in the axial direction, generally The gap between the groove and the oil ring is small, so that the side of the oil ring is often in contact with the side of the groove. Especially in the case of axi...
Claims
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IPC IPC(8): F16C33/04F16N1/00
Inventor 朱杰张亚宾王稳周少华
Owner HUNAN CHONGDE IND TECH