CN202701402U - Sliding bearing of high-precision lathe main shaft - Google Patents
Sliding bearing of high-precision lathe main shaft Download PDFInfo
- Publication number
- CN202701402U CN202701402U CN 201120534513 CN201120534513U CN202701402U CN 202701402 U CN202701402 U CN 202701402U CN 201120534513 CN201120534513 CN 201120534513 CN 201120534513 U CN201120534513 U CN 201120534513U CN 202701402 U CN202701402 U CN 202701402U
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- CN
- China
- Prior art keywords
- bearing
- rotating shaft
- axle sleeve
- spindle sleeve
- sliding bearing
- Prior art date
- 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 - Lifetime
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Abstract
Provided is a sliding bearing of a high-precision lathe main shaft, which belongs to the field of mechanical work, and comprises a bearing pedestal, a bearing cap, a spindle sleeve and a rotating shaft. The bearing cap and a bearing sleeve are respectively provided with a semicircular groove. The bearing cap is fixedly connected to the bearing pedestal through a bolt. The bearing cap and the bearing pedestal form a circular middle space. An external surface of the spindle sleeve is fixedly bonded with an inner surface of the middle circular space, and the rotating shaft is disposed in the spindle sleeve. The sliding bearing of a high-precision lathe main shaft is characterized in that the inner surface of the spindle sleeve is provided with a plurality of concealing pits; a gap between the rotating shaft and the spindle sleeve is filled with lubricants. The sliding bearing of a high-precision lathe main shaft is advantageous in that as the gap between the rotating shaft and the spindle sleeve is filled with lubricants, and the inner surface of the spindle sleeve is provided with a plurality of concealing pits, the concealing type lubrication and self-sealing effect can be formed; the supplement of lubricants for reducing friction between the rotating shaft and the spindle sleeve can be improved, and friction can be reduced; precision of the lathe can be improved, and service lifetime of the lathe can be prolonged.
Description
Technical field
The utility model belongs to the mechanical work field, is a kind of sliding bearing of high precision lathe spindle.
Background technology
Sliding bearing often is applied in high-precision operation mechanically, during sliding bearing work, requires to have the very thin oil film lubricate of one deck between axle sleeve and the rotating shaft.If because insufficient lubrication rubs with regard to existing directly between axle sleeve and the rotating shaft, the friction meeting produces very high temperature, although axle sleeve is because special high-temperature alloy material is made, the high temperature that the generation direct friction produces is still sufficient in it is burnt out.Axle sleeve also may be because excessive, the excess Temperature of load, lubricating oil exist the factors such as impurity or viscosity be unusual to cause tile kilning.Sliding bearing has just damaged behind the tile kilning.
The utility model content
The purpose of this utility model provides a kind of sliding bearing of high precision lathe spindle, has effectively improved the friction problem between rotating shaft and the axle sleeve, has prolonged the service life of sliding bearing, has improved the operating accuracy of lathe.
The technical solution of the utility model is a kind of sliding bearing of high precision lathe spindle, which comprises at least bearing block, bearing cap, axle sleeve and rotating shaft, bearing cap and bearing respectively have a semi-circular recesses, bearing cap and bearing block are bolted to connection, bearing cap and the conglobate central space of bearing block shape, the inner surface of the outer surface of axle sleeve and middle part circular space is fixing fits, rotating shaft is inner at axle sleeve, it is characterized in that: the inner surface of axle sleeve has some holes of hiding, and the gap-fill between rotating shaft and the axle sleeve has lubricant.
Open lattice structure is adopted in the described hole of hiding, and the size in the hole of hiding is Φ 2.5mm*1mm, and adjacent two distances of hiding between the hole are 5mm.
Described lubricant adopts kollag, and the dosage Application standard of lubricant is that rotating shaft and guide gap location freely overflow lubricant.
Characteristics of the present utility model are that the gap-fill at rotating shaft and axle sleeve has lubricant, and adopt the hole structure of hiding at the inner surface of guide, make it form the lubricated self sealss effect of submarine; Improved replenishing of friction, lubrication agent between rotating shaft and the axle sleeve, improved the effect of friction, so improved lathe precision, prolonged life-span of lathe.
Description of drawings
Below in conjunction with embodiment the utility model is further described.
Fig. 1 is the structural representation of sliding bearing.
Fig. 2 is the work schematic diagram that rotating shaft is rotated.
Fig. 3 is the structural representation of axle sleeve.
Among the figure: 1, bearing block; 2, bearing cap; 3, bolt; 4, axle sleeve; 5, rotating shaft; 6, lubricant; 7, the hole of hiding.
The specific embodiment
As shown in Figure 1, bearing block 1 respectively has a semicircular groove with bearing cap 2, and bearing block 1 and bearing cap 2 are spliced to form semi-circular recesses the cavity of a circle, and by bolt 3 bearing block 1 is fixedly connected with bearing cap 2.
The outer surface of axle sleeve 4 and the inner surface of circular cavity are fixing fits, and rotating shaft 5 places axle sleeve 4 inside.
As shown in Figure 2, be filled with kollag 6 at the gap location of rotating shaft 5 and axle sleeve 4, the dosage Application standard of lubricant is that rotating shaft and guide gap location freely overflow lubricant.
As shown in Figure 3, the inner surface of axle sleeve 4 is provided with the hole 7 of hiding of some open lattice structures, and the size in the hole 7 of hiding is Φ 2.5mm*1mm, and adjacent two distances of hiding between the hole 7 are 5mm.
During work, rotating shaft 5 is in axle sleeve 4 inner rotation, because the inner surface of axle sleeve 4 has adopted the dot matrix hole structure of hiding, guaranteed rotating shaft 5 and axle sleeve 4 when relative friction, and the free of discontinuities of lubricant 6 is additional.Simultaneously, in the engineering that constantly rubs, can between rotating shaft 5 and axle sleeve 5, form lubricant film, avoid direct friction, and then improved the service precision of lathe, increase the service life.
Claims (3)
1. the sliding bearing of a high precision lathe spindle, which comprises at least bearing block, bearing cap, axle sleeve and rotating shaft, bearing cap and axle sleeve respectively have a semi-circular recesses, bearing cap and bearing block are bolted to connection, bearing cap and the conglobate central space of bearing block shape, the inner surface of the outer surface of axle sleeve and middle part circular space is fixing fits, and rotating shaft is inner at axle sleeve, it is characterized in that: the inner surface of axle sleeve has some holes of hiding, and the gap-fill between rotating shaft and the axle sleeve has lubricant.
2. the sliding bearing of a kind of high precision lathe spindle described in according to claim 1, it is characterized in that: open lattice structure is adopted in the described hole of hiding, and the size in the hole of hiding is Φ 2.5mm*1mm, and adjacent two distances of hiding between the hole are 5mm.
3. the sliding bearing of a kind of high precision lathe spindle described in according to claim 1, it is characterized in that: described lubricant adopts kollag, and the dosage Application standard of lubricant is that rotating shaft and guide gap location freely overflow lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120534513 CN202701402U (en) | 2011-12-20 | 2011-12-20 | Sliding bearing of high-precision lathe main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120534513 CN202701402U (en) | 2011-12-20 | 2011-12-20 | Sliding bearing of high-precision lathe main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202701402U true CN202701402U (en) | 2013-01-30 |
Family
ID=47581742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120534513 Expired - Lifetime CN202701402U (en) | 2011-12-20 | 2011-12-20 | Sliding bearing of high-precision lathe main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202701402U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537056A (en) * | 2011-12-20 | 2012-07-04 | 西安奥奈特固体润滑工程学研究有限公司 | Design method of sliding bearing of high precision lathe spindle |
| CN103964131A (en) * | 2014-05-09 | 2014-08-06 | 于浩 | Anti-disengaging mandrel roller fixing device for caterpillar track conveyer |
-
2011
- 2011-12-20 CN CN 201120534513 patent/CN202701402U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537056A (en) * | 2011-12-20 | 2012-07-04 | 西安奥奈特固体润滑工程学研究有限公司 | Design method of sliding bearing of high precision lathe spindle |
| CN103964131A (en) * | 2014-05-09 | 2014-08-06 | 于浩 | Anti-disengaging mandrel roller fixing device for caterpillar track conveyer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
|
| CX01 | Expiry of patent term |