CN208236904U - A kind of anti-rotational axis falls off Ceramic shaft sleeve - Google Patents
A kind of anti-rotational axis falls off Ceramic shaft sleeve Download PDFInfo
- Publication number
- CN208236904U CN208236904U CN201820625912.1U CN201820625912U CN208236904U CN 208236904 U CN208236904 U CN 208236904U CN 201820625912 U CN201820625912 U CN 201820625912U CN 208236904 U CN208236904 U CN 208236904U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- internal axle
- outer shaft
- shaft
- sleeve
- 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 - Fee Related
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 25
- 238000005096 rolling process Methods 0.000 claims description 18
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 241000222712 Kinetoplastida Species 0.000 claims 1
- 238000005299 abrasion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005292 diamagnetic effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of anti-rotational axis and falls off Ceramic shaft sleeve, and internal axle sleeve and outer shaft including nesting setting, rotary shaft are inserted into the internal axle sleeve；Circumferentially arranged on the inner wall of the outer shaft to have a sliding slot, the internal axle sleeve is embedded in the sliding slot, is slided along the sliding slot；Rotation friction between the rotary shaft and the internal axle sleeve is greater than rotation friction between the internal axle sleeve and outer shaft.The axle sleeve of the utility model includes internal axle sleeve and two layers of outer shaft, internal axle sleeve rotation is nested in outer shaft, and the rotation friction between rotary shaft and internal axle sleeve is greater than rotation friction between internal axle sleeve and outer shaft, under rotary shaft working condition, rotary shaft drives internal axle sleeve to rotate in outer shaft together, rotary shaft and internal axle sleeve are limited by the sliding slot of outer shaft, prevent rotary shaft from falling off.
Description
Technical field
The utility model relates to a kind of ceramic shaft tool, specifically a kind of chemistry, chemical industry, petroleum industry are high with wear-resisting acid and alkali-resistance
The axle sleeve of strength ceramic shaft assembly.
Background technique
Sliding bearing is the bearing to work under sliding friction.Sliding bearing is under the conditions of hydrodynamic lubrication, slidingsurface quilt
Lubricating oil is separated without directly contacting, and can greatly reduce friction loss and surface abrasion, oil film also has certain suction
Vibration ability, but starting friction resistance is larger.Axis is known as axle journal by the part that bearing supports, and the part to match with axle journal is exactly axis
Set.
In recent years, with the development of new material, ceramic bearing has obtained increasingly extensive in the every field of national economy
Application.Ceramic bearing has the spies such as high temperature resistant, cold-resistant, wear-resisting, corrosion-resistant, diamagnetic electrical isolation, oil-free self lubrication, high revolving speed
Property, there is incomparable excellent performance compared to metal bearing, can be used for the environment and special operation condition of extreme, can answer extensively
For Aeronautics and Astronautics, navigation, petroleum, chemical industry, automobile, electronic equipment, metallurgy, electric power, weaving, pump class, medical instrument, scientific research
It is the high-tech product of new material application with the fields such as defense military.
But be widely used in recent years in ceramic bearing, people also gradually find its there are the shortcomings that, for example, in height
Fast axis field, ceramic shaft are easy to fall off in use, and are spinned with non-control, mill of this phenomenon to axle sleeve and rotary shaft
Damage is very big.The development of ceramic bearing is seriously affected.
Summary of the invention
Goal of the invention: the utility model aim is in view of the deficiencies of the prior art, to provide a kind of anti-rotational axis and fall off pottery
Porcelain axle sleeve, prevents rotary shaft from falling off out of axle sleeve, and controls the spin of rotary shaft.
Technical solution: anti-rotational axis described in the utility model falls off Ceramic shaft sleeve, internal axle sleeve including nesting setting and outer
Axle sleeve, rotary shaft are inserted into the internal axle sleeve；Circumferentially arranged on the inner wall of the outer shaft to have a sliding slot, the inner shaft is nested
Enter in the sliding slot, is slided along the sliding slot；Rotation friction between the rotary shaft and the internal axle sleeve is greater than in described
Rotation friction between axle sleeve and outer shaft.
Above-mentioned technical proposal is further improved, the section of the outer shaft is concave, described in the internal axle sleeve insertion
In the groove of outer shaft, and using the groove as sliding slot.
Further, concordant with the inner wall of the internal axle sleeve at the top of the sliding slot of the outer shaft.
Further, the circumferential direction in the sliding slot of the outer shaft along outer shaft is provided with twice retainer, per pass retainer
Upper to be placed with several rolling elements respectively, the rolling element is under the drive of the internal axle sleeve, in the restriction site of the retainer
Place rolls.
Further, the rolling element is cylindrical rolling element or spherical rolling element.
Further, the rolling element, internal axle sleeve and outer shaft are made of identical ceramic material.
Further, the rolling element, internal axle sleeve and outer shaft are using aluminium oxide ceramics, zirconia ceramics, silicon carbide pottery
Porcelain or Zirconia reinforced alumina ceramic one of which are made.
The utility model has the advantages that the axle sleeve of (1) the utility model includes internal axle sleeve and two layers of outer shaft, internal axle sleeve rotation is nested in outer
Rotation friction in axle sleeve, and between rotary shaft and internal axle sleeve is greater than rotation friction between internal axle sleeve and outer shaft,
Under rotary shaft working condition, rotary shaft drives internal axle sleeve to rotate in outer shaft together, by the sliding slot of outer shaft to rotary shaft and
Internal axle sleeve is limited, and prevents rotary shaft from falling off；When rotary shaft stops working, frictional force between internal axle sleeve and rotary shaft,
Rapid brake rotation shaft prevents non-control from spinning；
(2) section of outer shaft is concave in the utility model, and the internal axle sleeve is embedded in the groove of the outer shaft
In, and using the groove as sliding slot, therefore key wear component is internal axle sleeve and outer shaft, reduces the friction damage of rotary shaft
Consumption is replaced and easy to maintenance；And in order to further decrease the abrasion of internal axle sleeve and outer shaft, rolling element is set therebetween,
Reduce frictional force between the two.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of axle sleeve described in the utility model；
Fig. 2 is the sectional view of axle sleeve described in the utility model.
Specific embodiment
Technical solutions of the utility model are described in detail below by attached drawing, but the protection scope of the utility model
It is not limited to the embodiment.
Embodiment: a kind of anti-rotational axis falls off Ceramic shaft sleeve, internal axle sleeve 2 and outer shaft 1 including nesting setting, rotary shaft
In 3 insertion internal axle sleeves 2.
The section of outer shaft 1 is concave, and internal axle sleeve 2 is embedded in the groove of outer shaft 1, and using the groove as cunning
Slot slides along the chute.It is concordant with the inner wall of internal axle sleeve 2 at the top of the sliding slot of outer shaft 1.
Circumferential direction in the sliding slot of outer shaft 1 along outer shaft 1 is provided with twice retainer, is placed with respectively on per pass retainer
Several spherical rolling elements 4, rolling element 4 roll at the restriction site of retainer under the drive of internal axle sleeve 2, it is ensured that rotation
Rotation friction between axis 3 and internal axle sleeve 2 is greater than rotation friction between internal axle sleeve 2 and outer shaft 1.
Rolling element 4, internal axle sleeve 2, outer shaft 1 and rotary shaft 3 are made of zirconia ceramics.
As described above, although the utility model has been indicated and described referring to specific preferred embodiment, it must not
It is construed to the limitation to the utility model itself.In the spirit and scope for not departing from the utility model that appended claims define
Under the premise of, it can various changes can be made in the form and details to it.
Claims (7)
- The Ceramic shaft sleeve 1. a kind of anti-rotational axis falls off, which is characterized in that internal axle sleeve and outer shaft including nesting setting, rotary shaft It is inserted into the internal axle sleeve；Circumferentially arranged on the inner wall of the outer shaft to have a sliding slot, the internal axle sleeve is embedded in the sliding slot It is interior, it is slided along the sliding slot；Rotation friction between the rotary shaft and the internal axle sleeve is greater than the internal axle sleeve and outer shaft Rotation friction between set.
- The Ceramic shaft sleeve 2. anti-rotational axis according to claim 1 falls off, which is characterized in that the section of the outer shaft is Concave, the internal axle sleeve are embedded in the groove of the outer shaft, and using the groove as sliding slot.
- The Ceramic shaft sleeve 3. anti-rotational axis according to claim 2 falls off, which is characterized in that at the top of the sliding slot of the outer shaft It is concordant with the inner wall of the internal axle sleeve.
- The Ceramic shaft sleeve 4. anti-rotational axis according to claim 1 falls off, which is characterized in that edge in the sliding slot of the outer shaft The circumferential direction of outer shaft is provided with twice retainer, is placed with several rolling elements on per pass retainer respectively, the rolling element is in institute Under the drive for stating internal axle sleeve, rolled at the restriction site of the retainer.
- The Ceramic shaft sleeve 5. anti-rotational axis according to claim 4 falls off, which is characterized in that the rolling element is cylindrical rolling Kinetoplast or spherical rolling element.
- The Ceramic shaft sleeve 6. anti-rotational axis according to claim 4 falls off, which is characterized in that the rolling element, internal axle sleeve and Outer shaft is made of identical ceramic material.
- The Ceramic shaft sleeve 7. anti-rotational axis according to claim 6 falls off, which is characterized in that the rolling element, internal axle sleeve and Outer shaft is made of aluminium oxide ceramics, zirconia ceramics, silicon carbide ceramics or Zirconia reinforced alumina ceramic one of which.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625912.1U CN208236904U (en) | 2018-04-28 | 2018-04-28 | A kind of anti-rotational axis falls off Ceramic shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625912.1U CN208236904U (en) | 2018-04-28 | 2018-04-28 | A kind of anti-rotational axis falls off Ceramic shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236904U true CN208236904U (en) | 2018-12-14 |
Family
ID=64581399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820625912.1U Expired - Fee Related CN208236904U (en) | 2018-04-28 | 2018-04-28 | A kind of anti-rotational axis falls off Ceramic shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236904U (en) |
-
2018
- 2018-04-28 CN CN201820625912.1U patent/CN208236904U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 |