CN202498441U - Spindle support structure of centerless grinder of grinding valve collet groove - Google Patents
Spindle support structure of centerless grinder of grinding valve collet groove Download PDFInfo
- Publication number
- CN202498441U CN202498441U CN2012200893031U CN201220089303U CN202498441U CN 202498441 U CN202498441 U CN 202498441U CN 2012200893031 U CN2012200893031 U CN 2012200893031U CN 201220089303 U CN201220089303 U CN 201220089303U CN 202498441 U CN202498441 U CN 202498441U
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- China
- Prior art keywords
- spindle
- main shaft
- oil
- support structure
- journal bearing
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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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Abstract
The utility model provides a spindle support structure of a centerless grinder of a grinding valve collet groove. According to the spindle support structure, when a spindle is rotated, the spindle does not need to contact with a bearing, so that the starting torque is small and the consumed power is small, thus the rotating precision of the spindle is high. The spindle support structure comprises a spindle, a spindle shell and a grinding wheel chuck, wherein the end of the spindle is sheathed with the grinding wheel chuck, the spindle penetrates through the spindle shell, the spindle support structure is characterized in that dynamic and static pressure oil membrane bearings are arranged on both ends of the spindle shell, the spindle penetrates through inner holes of the dynamic and static pressure oil membrane bearings, an oil passage is arranged in the spindle shell, the oil passage is communicated with inner oil cavities of the dynamic and static pressure oil membrane bearings, the inner oil cavities are uniformly arranged on the inner edge walls of the inner holes of the dynamic and static pressure oil membrane bearings, and the outer edge surface of the spindle is coated by the inner oil cavities.
Description
Technical field
The utility model relates to the structure field of the centerless grinder of grinding valve collet groove, is specially a kind of spindle support structure of centerless grinder of grinding valve collet groove.
Background technology
Its bearing through two ends of the main shaft of the centerless grinder of existing grinding valve collet groove directly is loaded in the housing; Its main shaft when rotating, needs and bearing contacts; Starting torque is big, consumed power is big, and because the metal of main shaft and bearing is in contact with one another, causes the rotating accuracy of its main shaft low.
Summary of the invention
To the problems referred to above, the utility model provides a kind of spindle support structure of centerless grinder of grinding valve collet groove, and it makes that main shaft need not with the bearing starting torque that contacts when rotating little, and consumed power is little, and then makes that the rotating accuracy of main shaft is high.
A kind of spindle support structure of centerless grinder of grinding valve collet groove; Its technical scheme is such: it comprises main shaft, main shaft shell, grinding wheel chuck, and the end of said main shaft is set with grinding wheel chuck, and said main shaft runs through said main shaft shell; It is characterized in that: the two ends of said main shaft shell are provided with hybrid hydrodynamic oil film journal bearing; Said main shaft runs through the endoporus of said hybrid hydrodynamic oil film journal bearing, has oil circuit in the said main shaft shell, and said oil circuit is communicated with the inside oil pocket of said hybrid hydrodynamic oil film journal bearing; Said inner oil pocket is distributed in the inner wall of the endoporus of said hybrid hydrodynamic oil film journal bearing, and said inner oil pocket wraps up said main shaft outer edge surface.
It is further characterized in that: the two ends of said main shaft are respectively installed with front oil clot, backstop oil clot; The front end face of the said hybrid hydrodynamic oil film journal bearing that said front oil clot applying is anterior, the rear end face of the said hybrid hydrodynamic oil film journal bearing at said backstop oil clot applying rear portion.
After adopting the structure of the utility model, main shaft has pressure oil with the endoporus central authorities of main shaft rest at hybrid hydrodynamic oil film journal bearing when not changeing, do not have Metal Contact during starting; Starting torque is little; Consumed power is little, and behind the spindle operation, the oil pressure in the inner oil pocket raises once more; Form an additional dynamic pressure, improved the rotating accuracy of oil film rigidity and main shaft.
Description of drawings
Fig. 1 is the front view structural representation of the utility model;
Fig. 2 cuts open structural representation for the A-A of Fig. 1.
The specific embodiment
See Fig. 1, Fig. 2, it comprises main shaft 1, main shaft shell 2, grinding wheel chuck 3, and the end of main shaft 1 is set with grinding wheel chuck 3; Main shaft 1 runs through main shaft shell 2, and the two ends of main shaft shell 2 are provided with hybrid hydrodynamic oil film journal bearing 4, and main shaft 1 runs through the endoporus 5 of hybrid hydrodynamic oil film journal bearing 4; Have oil circuit 6 in the main shaft shell 2; The inside oil pocket 7 that oil circuit 6 is communicated with hybrid hydrodynamic oil film journal bearing 4, inner oil pocket 7 is distributed in the inner wall of the endoporus 5 of hybrid hydrodynamic oil film journal bearing 4, inner oil pocket 7 parcel main shafts 1 outer edge surface.The two ends of main shaft 1 are respectively installed with front oil clot 8, backstop oil clot 9, the front end face of the hybrid hydrodynamic oil film journal bearing 4 that 8 applyings of front oil clot are anterior, the rear end face of the hybrid hydrodynamic oil film journal bearing 4 at backstop oil clot 9 applying rear portions.
Claims (2)
1. the spindle support structure of the centerless grinder of a grinding valve collet groove; It comprises main shaft, main shaft shell, grinding wheel chuck, and the end of said main shaft is set with grinding wheel chuck, and said main shaft runs through said main shaft shell; It is characterized in that: the two ends of said main shaft shell are provided with hybrid hydrodynamic oil film journal bearing; Said main shaft runs through the endoporus of said hybrid hydrodynamic oil film journal bearing, has oil circuit in the said main shaft shell, and said oil circuit is communicated with the inside oil pocket of said hybrid hydrodynamic oil film journal bearing; Said inner oil pocket is distributed in the inner wall of the endoporus of said hybrid hydrodynamic oil film journal bearing, and said inner oil pocket wraps up said main shaft outer edge surface.
2. the spindle support structure of the centerless grinder of a kind of grinding valve collet groove according to claim 1; It is characterized in that: the two ends of said main shaft are respectively installed with front oil clot, backstop oil clot; The front end face of the said hybrid hydrodynamic oil film journal bearing that said front oil clot applying is anterior, the rear end face of the said hybrid hydrodynamic oil film journal bearing at said backstop oil clot applying rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200893031U CN202498441U (en) | 2012-03-12 | 2012-03-12 | Spindle support structure of centerless grinder of grinding valve collet groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200893031U CN202498441U (en) | 2012-03-12 | 2012-03-12 | Spindle support structure of centerless grinder of grinding valve collet groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202498441U true CN202498441U (en) | 2012-10-24 |
Family
ID=47035067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200893031U Expired - Fee Related CN202498441U (en) | 2012-03-12 | 2012-03-12 | Spindle support structure of centerless grinder of grinding valve collet groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202498441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554718A (en) * | 2012-03-12 | 2012-07-11 | 无锡市启龙机床有限公司 | Main shaft supporting structure of centerless grinder for grinding valve lock groove |
| CN104690613A (en) * | 2015-03-31 | 2015-06-10 | 马鞍山市恒利达机械刀片有限公司 | Cylindrical grinder easy to assemble and maintain |
-
2012
- 2012-03-12 CN CN2012200893031U patent/CN202498441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554718A (en) * | 2012-03-12 | 2012-07-11 | 无锡市启龙机床有限公司 | Main shaft supporting structure of centerless grinder for grinding valve lock groove |
| CN104690613A (en) * | 2015-03-31 | 2015-06-10 | 马鞍山市恒利达机械刀片有限公司 | Cylindrical grinder easy to assemble and maintain |
| CN104690613B (en) * | 2015-03-31 | 2017-02-22 | 马鞍山市恒利达机械刀片有限公司 | Cylindrical grinder easy to assemble and maintain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20150312 |
|
| EXPY | Termination of patent right or utility model |