CN2706622Y - Static pressure bearing structure for grinding wheel of large coreless grinding machine - Google Patents
Static pressure bearing structure for grinding wheel of large coreless grinding machine Download PDFInfo
- Publication number
- CN2706622Y CN2706622Y CN 200420010910 CN200420010910U CN2706622Y CN 2706622 Y CN2706622 Y CN 2706622Y CN 200420010910 CN200420010910 CN 200420010910 CN 200420010910 U CN200420010910 U CN 200420010910U CN 2706622 Y CN2706622 Y CN 2706622Y
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- CN
- China
- Prior art keywords
- grinding wheel
- static pressure
- hydrostatic bearing
- pressure bearing
- wheel spindle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model relates to a static pressure bearing structure for grinding wheel axis of large coreless grinder, belonging to the technological field of grinding devices and being characterized in that a static pressure bearing is arranged at the front end of the grinding wheel with a coil structure. The surface of one end of the coil structure is a planar surface, and a round-arc groove is arranged on the surface of the other end of the coil structure. At least four lubricating oil grooves are arranged and arranged at equal intervals, being communicating with the round-arc groove. The static pressure bearing structure of the grinding wheel is designed by substituting the planar push bearing to a static pressure bearing on the grinding wheel axis, which can not only effectively improve the rotation accuracy of the grinding wheel axis, but also can increase the accuracy by two levels compared with same kind of coreless grinders and can reach a processing standard of super-accuracy. Compared with existing technologies, the utility model has advantages of small noise, long serving life, etc. The structure is applicable to the installation of the grinding wheel axis of newly-made coreless grinder and the modification of the grinding wheel axis of old coreless grinder.
Description
Technical field:
The utility model belongs to the equipment for grinding technical field, is a kind of large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure.
Background technique:
In technique known, the bearing that general large-scale centerless grinding machine grinding axle front end is installed is 38211 plain thrust bearings, owing to have steel ball on this bearing, noise in operating is big, and running time one is long, steel ball easily is worn and produces vibration, causes the running accuracy of grinding wheel spindle to reduce, and influences the precision of operative workpiece.Secondly, because the damage of steel ball shortens the working life of plain thrust bearing, influence processing progress because of the number of times that increases the replacing bearing again simultaneously.
Summary of the invention:
The purpose of this utility model provides a kind of running accuracy that can improve the grinder wheel axle, prolongs the bearing large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure in working life.
Realize that the technological scheme that the purpose of this utility model is taked is the improvement that former machine grinding axle bearing structure is carried out, its major character is: on the bearings mounted position of grinding wheel spindle front end, be provided with hydrostatic bearing, this hydrostatic bearing is the disk body structure, disk body one side end face is the plane, have arc groove on the opposite side end face, and five equilibrium is provided with the oil groove that communicates with arc groove more than at least 4.
The large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure of making according to such scheme, be on grinding wheel spindle, to utilize hydrostatic bearing to replace 38211 bearings, can improve the running accuracy of grinding wheel spindle greatly, make the similar centerless grinding machine of product processed ratio of precision improve the two poles of the earth, reach the superlinishing level.This device is applicable to the installation of new system centerless grinding machine grinding wheel spindle, also is applicable to the transformation of old centerless grinding machine grinding wheel spindle.Compared with prior art: the utlity model has advantages such as noise is little, long service life.
Utilize accompanying drawing to further describe embodiment of the present utility model below.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of hydrostatic bearing among Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment:
Referring to Fig. 1, large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure of the present utility model, comprise grinding wheel spindle 1, emery wheel 2, grinding wheel chuck 3, emery wheel gland 5, bearing and relevant supporting component with it, each part still fits together in the usual way.Different is on the former bearings mounted position of grinding wheel spindle front end, the hydrostatic bearing made from the high-abrasive material Cuprum alloy 4 to be housed.
Referring to Fig. 2, Fig. 3, hydrostatic bearing 4 is the disk body structure, the end face of disk body 4-1 is the plane, have arc groove 4-2 on the other end, and five equilibrium is provided with the oil groove 4-3 more than at least 4, oil groove 4-3 communicates with arc groove 4-2, and the hydrostatic bearing of installing at the grinding wheel spindle front end 4 is two, separates with gasket ring 6 therebetween.The gap of hydrostatic bearing 4 is adjusted by terminal screw before the grinding wheel spindle, by dwindling the axial clearance of grinding wheel spindle 1, can avoid grinding wheel spindle 1 to produce axial float, thereby the running accuracy of grinder wheel axle is improved, and reaches the requirement that improves machining accuracy.
Claims (4)
1, a kind of large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure, comprise grinding wheel spindle [1], emery wheel [2], grinding wheel chuck [3], emery wheel gland [5], bearing and relevant supporting component with it, it is characterized in that: on the bearings mounted position of grinding wheel spindle [1] front end, be provided with hydrostatic bearing [4].
2, large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure according to claim 1, it is characterized in that: hydrostatic bearing [4] is the disk body structure, disk body [4-1] end face is the plane, have arc groove [4-2] on the other end, and five equilibrium is provided with the oil groove [4-3] that communicates with arc groove [4-2] more than at least 4.
3, large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure according to claim 1, it is characterized in that: the hydrostatic bearing [4] that is installed in grinding wheel spindle [1] front end is two, uses gasket ring [6] to separate therebetween.
4, large-scale centerless grinding machine grinding wheel spindle hydrostatic bearing structure according to claim 1 is characterized in that: hydrostatic bearing [4] adopts the Cuprum alloy of high-abrasive material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010910 CN2706622Y (en) | 2004-05-26 | 2004-05-26 | Static pressure bearing structure for grinding wheel of large coreless grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010910 CN2706622Y (en) | 2004-05-26 | 2004-05-26 | Static pressure bearing structure for grinding wheel of large coreless grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706622Y true CN2706622Y (en) | 2005-06-29 |
Family
ID=34848589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010910 Expired - Fee Related CN2706622Y (en) | 2004-05-26 | 2004-05-26 | Static pressure bearing structure for grinding wheel of large coreless grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706622Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095592A (en) * | 2022-07-26 | 2022-09-23 | 台州伟志机床股份有限公司 | Impact-resistant long-life dynamic pressure main shaft |
-
2004
- 2004-05-26 CN CN 200420010910 patent/CN2706622Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095592A (en) * | 2022-07-26 | 2022-09-23 | 台州伟志机床股份有限公司 | Impact-resistant long-life dynamic pressure main shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |