CN201609868U - Vertical dynamic-static piezoelectric main shaft - Google Patents
Vertical dynamic-static piezoelectric main shaft Download PDFInfo
- Publication number
- CN201609868U CN201609868U CN2009202771291U CN200920277129U CN201609868U CN 201609868 U CN201609868 U CN 201609868U CN 2009202771291 U CN2009202771291 U CN 2009202771291U CN 200920277129 U CN200920277129 U CN 200920277129U CN 201609868 U CN201609868 U CN 201609868U
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- Prior art keywords
- main shaft
- body shell
- bearing
- vertical dynamic
- motor
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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 relates to a vertical dynamic-static piezoelectric main shaft belonging to the field of machine tool accessories. The vertical dynamic-static piezoelectric main shaft comprises a motor body shell, wherein a motor stator and a motor rotor are installed in the motor body shell. The vertical dynamic-static piezoelectric main shaft is characterized in that the motor rotor is connected with the main shaft, and the upper end and the lower end of the main shaft are respectively sheathed with an upper bearing and a lower bearing; and a part of the main shaft, which is below the lower bearing, is sheathed with a thrust bearing, and the upper bearing and the lower bearing are externally sheathed with a body shell fixed together with the motor body shell. The vertical dynamic-static piezoelectric main shaft meets the requirement on end face heavy grinding, and especially can be applied to occasions with higher requirement on end face precision.
Description
Technical field
The utility model relates to machine tool field, at length says it is a kind of vertical dynamic/static piezoelectric main shaft that is used for high-precision vertical grinding machine and slideway grinder.
Background technology
As everyone knows, the vertical spindle of high-precision vertical grinding machine and slideway grinder mainly is rolling bearing electricity main shaft or split type dynamic and static pressure main shaft, rolling main shaft electricity main shaft is short service life because of rolling bearing, ground effect is poor, is subjected to certain limitation during use, and split type dynamic and static pressure main shaft has jockey because of main shaft and motor, unbalanced factor is many, ground effect is undesirable, and general dynamic and static pressure main shaft axially loaded is little, is not suitable for doing high-power cross grinding.
Summary of the invention
In order to overcome the deficiency of technology, the utility model provides a kind of vertical dynamic/static piezoelectric main shaft, satisfies the end face high-rate grinding, especially uses under the end face required precision condition with higher.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of vertical dynamic/static piezoelectric main shaft, be provided with motor body shell, in the motor body shell motor stator and rotor are installed, rotor links to each other with main shaft, main shaft upper end and lower end are respectively installed with upper bearing (metal) and lower bearing, also be set with thrust bearing on the main shaft of lower bearing below, upper bearing (metal) and lower bearing are set with the body shell outward, and body shell and motor body shell are fixed together.
The utility model also can be realized by following measure: be processed with the oil-in that is connected with upper bearing (metal) and lower bearing on the body shell, also be processed with oil-out on the body shell.
The beneficial effects of the utility model are, not only satisfy the end face high-rate grinding, especially use under the end face required precision condition with higher.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
1. blower fans among the figure, 2. rotor, 3. motor stator, 4. motor body shell, 5. upper press cover, 6. upper bearing (metal), 7. body shell, 8. lower bearing is 9. adjusted packing ring, 10. thrust bearing, 11. lower covers, 12. main shafts.
The specific embodiment
Shown in Figure 1, the utility model is provided with motor body shell 4, motor stator 3 and rotor 2 are installed in the motor body shell 4, electric machine casing 4 rear portions are equipped with blower fan 1, rotor 2 links to each other with main shaft 12, main shaft 12 upper ends and lower end are respectively installed with upper bearing (metal) 6 and lower bearing 8, be set with upper press cover 5 on the main shaft 12 of upper bearing (metal) 6 tops, also be set with thrust bearing 10 on the main shaft 12 of lower bearing 8 belows, be set with on the main shaft 12 between lower bearing 8 and the thrust bearing 10 and adjust packing ring 9, on the main shaft 12 of lower bearing 8 lower ends lower cover 11 is installed, body shell 7 is fixed together with motor body shell 4, be processed with the oil-in that is connected with upper bearing (metal) 6 and lower bearing 8 on the body shell 7, also be processed with oil-out on the body shell 7.
Pressure oil enters upper bearing (metal) 5 and lower bearing 8 via body shell 7 by the capillary type oil-in, and fluid compiles in body shell 7 after oil-out flows out.Axial thrust is made up of lower bearing 8, adjustment packing ring 9, thrust bearing 10 and main shaft 12.Main shaft 12 has the big shaft shoulder to guarantee axially to have enough big loaded area, and cod is formed in the lower surface of lower bearing 8 and thrust bearing 10 upper surfaces.Adopt with inner throttling form and satisfy vertical spindle use special operation condition, main shaft two ends up and down adopts the high-speed abrasion-proof skeleton oil seal.
The utility model is arranged in the lower end with axial thrust bearing 10, and the shaft shoulder can prevent that apart from weak point main shaft 12 variations in temperature from causing that the bearing clearance changes, and influences the main shaft performance.Main shaft 12 axial hydrostatic bearings adopt the internal feedback structure, have improved the axial stiffness of hydrostatic spindle greatly.Main shaft 12 a pair of radially dynamic and hydrostatic bearings can satisfy the main shaft radial grinding, guarantee that simultaneously the relative position of main shaft and bearing keeps stable, do not influence the operate as normal of axial thrust bearing.Spindle motor places top, makes things convenient for the dismounting of main shaft and the maintenance of motor.Rotor is installed on the main shaft, and motor and main shaft are combined together, and stability is better during machine operation, and unbalanced factor is cut down greatly.
Claims (2)
1. vertical dynamic/static piezoelectric main shaft, be provided with motor body shell, in the motor body shell motor stator and rotor are installed, it is characterized in that: rotor links to each other with main shaft, main shaft upper end and lower end are respectively installed with upper bearing (metal) and lower bearing, also be set with thrust bearing on the main shaft of lower bearing below, upper bearing (metal) and lower bearing are set with the body shell outward, and body shell and motor body shell are fixed together.
2. according to the described vertical dynamic/static piezoelectric main shaft of claim 1, it is characterized in that being processed with the oil-in that is connected with upper bearing (metal) and lower bearing on the said body shell, also be processed with oil-out on the body shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771291U CN201609868U (en) | 2009-12-04 | 2009-12-04 | Vertical dynamic-static piezoelectric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771291U CN201609868U (en) | 2009-12-04 | 2009-12-04 | Vertical dynamic-static piezoelectric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201609868U true CN201609868U (en) | 2010-10-20 |
Family
ID=42960501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202771291U Expired - Fee Related CN201609868U (en) | 2009-12-04 | 2009-12-04 | Vertical dynamic-static piezoelectric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201609868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151853A (en) * | 2011-04-28 | 2011-08-17 | 哈尔滨工业大学 | Vertical ultra-precise hydrostatic pressure electric main shaft system |
| CN106514455A (en) * | 2016-12-27 | 2017-03-22 | 宁夏宝塔石化科技实业发展有限公司 | Numerical control grinding machine for processing super large bearing spherical rollers |
-
2009
- 2009-12-04 CN CN2009202771291U patent/CN201609868U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151853A (en) * | 2011-04-28 | 2011-08-17 | 哈尔滨工业大学 | Vertical ultra-precise hydrostatic pressure electric main shaft system |
| CN106514455A (en) * | 2016-12-27 | 2017-03-22 | 宁夏宝塔石化科技实业发展有限公司 | Numerical control grinding machine for processing super large bearing spherical rollers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20111204 |