Method for assembling mobile static pressure bearing
A kind of technology of dynamic and static pressure bearing, assembly method
Inactive Publication Date: 2010-01-06
潘旭华
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Problems solved by technology
In actual manufacturing, due to the inevitable errors in manufacturing and assembly, the symmetry of each oil tank and the coaxiality of the two support ends are difficult to achieve high enough accuracy. When the bearing rotates at high speed or ultra-high speed, the rotating shaft will vibrate. Decreases the accuracy of dynamic and static pressure bearings
Method used
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Embodiment Construction
[0008] Such as figure 1 As shown, a dynamic and static pressure bearing assembly method is characterized in that:
[0009] A. Fix the bearing housing 5 on a base 1,
[0010] B. Hold both ends of the shaft 3 with the shaft top 2, and the shaft top 2 is also fixed on the base 1;
[0011] C. Process the two bearing inner rings 4, put the two bearing inner rings 4 between the shaft 3 and the bearing housing 5 respectively, connect the oil circuit on the bearing inner ring 4, and make the gap between the bearing inner ring 4 and the shaft 3 The static pressure system works, and the bearing inner ring 4 floats on the shaft 3;
[0012] D. Enter the adhesive 6 in the gap between the bearing housing 5 and the bearing inner ring 4. After the adhesive 6 is cured, remove the shaft 3 and the bearing housing 5 from the base 1, and complete the movement Assembly of pressure bearings.
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The invention belongs to a machine work class and in particular relates to a method for assembling a hydro-hybrid bearing, which is characterized in that: a bearing shell is fixed on a base; two ends of an axis is propped by the finial of the axis; the finial is also fixed on the base; two bearing inner rings are machined and respectively sleeved between the axis and the shell; an oil circuit on each inner ring is switched on in order that a hydrostatic system between the inner ring and the axis can operate; the inner rings float on the axis; adhesive is input in the gap between the shell and the inner rings; after the adhesive is solidified, the axis and the shell are dismounted from the base, that is completing the assembly of the hydro-hybrid bearing. As the homogenization of hydrostatic oil film in the method for assembling the hydro-hybrid bearing, the isotropic gaps between two inner rings and the axis are uniform, thereby ensuring the coaxiality between two inner rings; as the two inner rings are respectively machined, the degree of symmetry of each oil sink can be ensured. The hydro-hybrid bearing assembled by the assembling method of the invention has high precision, a reasonable structure and small axis vibration.
Description
technical field [0001] The invention belongs to the category of mechanical manufacturing, in particular to an assembly method of a dynamic and static pressure bearing. Background technique [0002] The dynamic and static pressure bearing is a kind of bearing with good performance and long life. It is suitable for high-speed and ultra-high-speed support in principle, but the structure requires that the oil chambers at both ends of the support must be symmetrical, and the depth and width of the oil grooves in each oil chamber must be consistent. The centerlines of the supported ends must be coaxial. In actual manufacturing, due to the inevitable errors in manufacturing and assembly, the symmetry of each oil tank and the coaxiality of the two support ends are difficult to achieve high enough accuracy. When the bearing rotates at high speed or ultra-high speed, the rotating shaft will vibrate. The precision of the dynamic and static pressure bearing is reduced. Contents of th...
Claims
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IPC IPC(8): F16C32/06
Inventor 潘旭华
Owner 潘旭华