CN209985593U - Main shaft protection device of lower discharging centrifugal machine - Google Patents
Main shaft protection device of lower discharging centrifugal machine Download PDFInfo
- Publication number
- CN209985593U CN209985593U CN201920689353.5U CN201920689353U CN209985593U CN 209985593 U CN209985593 U CN 209985593U CN 201920689353 U CN201920689353 U CN 201920689353U CN 209985593 U CN209985593 U CN 209985593U
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- Prior art keywords
- main shaft
- bearing seat
- lower cover
- cover
- shaft protection
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- 238000007599 discharging Methods 0.000 title description 3
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000001012 protector Effects 0.000 claims 6
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a lower discharge centrifuge's main shaft protection device, this main shaft protection device establishes the main shaft protective sheath on the radial outside portion of main shaft including the cover, install the bearing frame lower cover on the lower extreme of bearing frame, the lower extreme fixed mounting of main shaft protective sheath is on the rotary drum base, the through-hole has been seted up on the bearing frame lower cover, the upper end of main shaft protective sheath is inserted and is established in the through-hole of bearing frame lower cover and main shaft protective sheath and bearing frame lower cover looks sealed setting within a definite time, main shaft protection device is still including installing the visor in bearing frame lower cover below, offer the storage tank that is used for acceping the bearing frame lower. The utility model discloses the part that exposes the main shaft outside has been kept apart to avoid the main shaft to be corroded by the material, reached the protection effect, and then prolonged the life of equipment.
Description
Technical Field
The utility model relates to a centrifuge technical field, concretely relates to lower discharge centrifuge's main shaft protection device.
Background
The existing conventional centrifuge is installed in an installation process, the conical surface of a main shaft is generally matched with the conical hole of a rotary drum base, the main shaft between the upper surface of the rotary drum base and a lower cover of a bearing seat is exposed outside in the use process, once separated liquid has corrosiveness, the transmission part exposed outside is extremely easy to corrode, after the centrifuge is used for a long time, the corrosion area can be enlarged to the conical surface of the main shaft and the conical hole of the rotary drum base, so that the matching installation surface of the main shaft and the rotary drum is damaged, the transmission is not stable, and even the transmission damage condition is caused.
Disclosure of Invention
The utility model aims at overcoming prior art's not enough, providing a lower discharge centrifuge's main shaft protection device, its simple structure effectively prevents that the radial lateral surface of main shaft is direct and material or liquid contact, has avoided the condition emergence by the corruption.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a spindle protection device of a bottom discharge centrifuge comprises a machine base, a machine shell arranged on the machine base, a rotary drum arranged in the machine shell through a rotary drum base, a top cover covering the upper end part of the machine shell, a bearing seat inserted in the rotary drum after passing through the top cover along the axial direction of the machine, and a spindle arranged between the bearing seat and the rotary drum base, wherein the spindle protection device comprises a spindle protection sleeve sleeved on the radial outer side part of the spindle, and a bearing seat lower cover arranged on the lower end of the bearing seat, the lower end of the spindle protection sleeve is fixedly arranged on the rotary drum base, the bearing seat lower cover is provided with a through hole, the upper end of the spindle protection sleeve is inserted in the through hole of the bearing seat lower cover, the spindle protection sleeve and the bearing seat lower cover are arranged in a sealing way, and the spindle protection device further comprises a protection cover arranged below the bearing seat lower cover, the protective cover is provided with a containing groove for containing the bearing seat lower cover.
Preferably, a framework oil seal is arranged between the main shaft protective sleeve and the lower cover of the bearing seat.
Further preferably, the bearing seat lower cover is provided with an annular groove communicated with the inner cavity of the through hole, the framework oil seal is installed in the groove opening of the annular groove, and the upper end of the spindle protective sleeve penetrates through the through hole of the bearing seat lower cover and then is inserted into the framework oil seal.
Preferably, the protective cover is made of PE material.
Further preferably, a bearing seat sheath made of PE is covered on the radial outer side wall of the bearing seat, and the upper end face of the protective cover and the bearing seat sheath are welded together in a hot melting mode.
Further preferably, the protective cover is fixedly connected with the lower cover of the bearing seat through a first bolt, and a PE film is coated on a portion of the first bolt exposed outside the protective cover.
Further preferably, the first bolt penetrates through the accommodating groove of the protective cover along the axial direction of the main shaft and then is locked with the lower cover of the bearing seat.
Preferably, the main shaft protective sleeve is of an L shape, the main shaft protective sleeve comprises a horizontal part and a vertical part, the horizontal part of the main shaft protective sleeve is fixedly mounted on the drum base through a second bolt, and the upper end of the vertical part of the main shaft protective sleeve is inserted into the through hole of the lower cover of the bearing seat.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a lower discharge centrifuge's main shaft protection device, it is through setting up the main shaft protective sheath, the bearing frame lower cover, cover and set up the through-hole under the bearing frame, insert in the through-hole of this bearing frame lower cover in the upper end of this main shaft protective sheath, the skeleton oil blanket has been set up between bearing frame lower cover and main shaft protective sheath here, make the exposed part of main shaft outside protected, thereby main shaft and rotary drum base can not all not corroded by material or liquid, set up the visor in the below of bearing frame lower cover simultaneously, the exposed part of bearing frame lower cover has effectively been prevented and the condition emergence of corroding by material or liquid, the life of equipment has been prolonged greatly. Meanwhile, once the framework oil seal is worn or the lower cover of the bearing seat is corroded, only the lower cover of the bearing seat or the framework oil seal needs to be replaced, the whole set of transmission parts does not need to be replaced and maintained, and the maintenance and processing period is greatly shortened.
Drawings
FIG. 1 is a structural diagram of a lower discharge centrifuge of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A;
wherein: 1. a machine base; 2. a housing; 3. a drum; 4. a drum base; 5. a top cover; 6. a bearing seat; 7. a main shaft; 8. a spindle protective sleeve; 9. a bearing seat lower cover; 10. a protective cover; 11. framework oil seal; 12. a bearing block sheath; 13. a first bolt; 14. and a second bolt.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
A main shaft protection device of a lower discharging centrifugal machine comprises a machine base 1, a machine shell 2 installed on the machine base 1, a rotary drum 3 installed in the machine shell 2 through a rotary drum base 4, a top cover 5 covering the upper end portion of the machine shell 2, a bearing seat 6 axially penetrating through the top cover 5 and inserted into the rotary drum 3, and a main shaft 7 installed between the bearing seat 6 and the rotary drum base 4, wherein the main shaft is shown in figure 1. The spindle protection device comprises a spindle protection sleeve 8 sleeved on the radial outer side part of a spindle 7, and a bearing seat lower cover 9 installed on the lower end of a bearing seat 6, wherein the lower end of the spindle protection sleeve 8 is fixedly installed on a rotary drum base 4, a through hole (not marked in the figure) is formed in the bearing seat lower cover 9, the upper end of the spindle protection sleeve 8 is inserted into the through hole of the bearing seat lower cover 9, the spindle protection sleeve 8 and the bearing seat lower cover 9 are arranged in a sealing mode, the spindle protection device further comprises a protection cover 10 installed below the bearing seat lower cover 9, and a containing groove (not marked in the figure) used for containing the bearing seat lower cover 9 is formed in the protection cover 10, and the spindle protection.
Through setting up main shaft protective sheath 8 to insert the through-hole of bearing frame lower cover 9 with the upper end of main shaft protective sheath 8 in, thereby expose the whole parcel of outer part with main shaft 7, effectively prevent that material or liquid from causing the corruption to main shaft 7, prolonged the life of main shaft 7 greatly. And the protective cover 10 is arranged below the bearing seat lower cover 9, and the bearing seat lower cover 9 is wrapped in the protective cover 10, so that the part of the bearing seat lower cover 9 exposed outside is effectively prevented from being corroded by materials or liquid.
Here, a skeleton oil seal 11 is provided between the spindle protection sleeve 8 and the bearing seat lower cover 9, as shown in fig. 2. Specifically, an annular groove (not marked in the figure) communicated with the inner cavity of the through hole is formed in the bearing seat lower cover 9, the framework oil seal 11 is installed in a groove opening of the annular groove, and the upper end of the spindle protective sleeve 8 penetrates through the through hole of the bearing seat lower cover 9 and then is inserted into the framework oil seal 11. The framework oil seal 11 is arranged in the bearing seat lower cover 9, so that the upper end of the main shaft protective sleeve 8 is inserted into the framework oil seal 11, thereby ensuring that external materials or liquid cannot enter a gap between the main shaft protective sleeve 8 and the bearing seat lower cover 9, and effectively ensuring that the main shaft 7 is not corroded.
In this embodiment, the protective cap 10 is made of PE, and the spindle protection sleeve 8 can be made of titanium or other corrosion-resistant materials.
Here, the radial outer side wall of the bearing seat 6 is covered with a bearing seat sheath 12 made of PE, and as shown in fig. 2, the upper end surface of the protective cover 10 and the bearing seat sheath 12 are welded together by hot melting. Through the arrangement mode, the gap between the protective cover 10 and the bearing seat 6 is prevented from being corroded by external materials or liquid, and the service life of the bearing seat 6 is prolonged.
Here, the protective cover 10 is fixedly connected to the bearing housing lower cover 9 by a first bolt 13, and as shown in fig. 2, the exposed portion of the first bolt 13 outside the protective cover 10 is covered with a PE film. The PE film is coated on the exposed part of the first bolt 13, so that the first bolt 13 is not corroded by external materials or liquid, the service life is prolonged, and the protective cover 10 and the bearing seat lower cover 9 are firmly connected. Specifically, the first bolt 13 penetrates through the accommodating groove of the protection cover 10 along the axial direction of the main shaft 7 and is locked with the bearing seat lower cover 9.
In this example, the main shaft protection sleeve 8 is in an "L" shape, the main shaft protection sleeve 8 includes a horizontal portion and a vertical portion, the horizontal portion of the main shaft protection sleeve 8 is fixedly mounted on the drum base 4 through a second bolt 14, as shown in fig. 2, and an upper end of the vertical portion of the main shaft protection sleeve 8 is inserted into a through hole of the bearing seat lower cover 9. The second bolt 14 can be made of titanium or other corrosion-resistant materials, so that the spindle protective sleeve 8 and the drum base 4 are effectively and firmly mounted.
By adopting the main shaft 7 protection device in the embodiment, once the framework oil seal 11 is worn or the lower cover 9 of the bearing seat is corroded, only the lower cover 9 or the framework oil seal 11 of the bearing seat needs to be replaced, the whole set of transmission parts does not need to be replaced and maintained, and the maintenance and processing period is greatly shortened.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. A main shaft protection device of a bottom discharge centrifuge, the centrifuge comprises a machine base, a machine shell arranged on the machine base, a rotary drum arranged in the machine shell through a rotary drum base, a top cover covering the upper end part of the machine shell, a bearing seat inserted in the rotary drum after passing through the top cover along the self axial direction, and a main shaft arranged between the bearing seat and the rotary drum base, and is characterized in that the main shaft protection device comprises a main shaft protection sleeve sleeved on the radial outer side part of the main shaft, a bearing seat lower cover arranged on the lower end of the bearing seat, the lower end of the main shaft protection sleeve is fixedly arranged on the rotary drum base, the bearing seat lower cover is provided with a through hole, the upper end of the main shaft protection sleeve is inserted in the through hole of the bearing seat lower cover, and the main shaft protection sleeve and the bearing seat lower cover are arranged in a, the spindle protection device further comprises a protection cover arranged below the bearing seat lower cover, and a containing groove used for containing the bearing seat lower cover is formed in the protection cover.
2. The spindle protector as claimed in claim 1, wherein a skeleton oil seal is provided between the spindle protector and the adjacent side wall of the bearing seat lower cover.
3. The main shaft protection device according to claim 2, wherein the bearing seat lower cover is provided with an annular groove communicated with the inner cavity of the through hole, the framework oil seal is installed in a notch of the annular groove, and the upper end of the main shaft protection sleeve is inserted into the framework oil seal after penetrating through the through hole of the bearing seat lower cover.
4. The spindle protector as claimed in claim 1, wherein said protective cover is made of PE material.
5. The spindle protector as claimed in claim 4, wherein the radially outer wall of the bearing seat is covered with a PE bearing seat sheath, and the upper end surface of the protective cover is welded to the bearing seat sheath by hot melting.
6. The spindle protector according to claim 4, wherein the protective cover is fixedly connected to the lower cover of the bearing seat by a first bolt, and a portion of the first bolt exposed outside the protective cover is covered with a PE film.
7. The spindle protector according to claim 6, wherein the first bolt is inserted through the receiving groove of the protective cover in an axial direction of the spindle and then locked to the lower cover of the bearing seat.
8. The main shaft protection device of claim 1, wherein the main shaft protection sleeve is L-shaped, the main shaft protection sleeve comprises a horizontal part and a vertical part, the horizontal part of the main shaft protection sleeve is fixedly mounted on the drum base through a second bolt, and the upper end of the vertical part of the main shaft protection sleeve is inserted into the through hole of the bearing seat lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689353.5U CN209985593U (en) | 2019-05-14 | 2019-05-14 | Main shaft protection device of lower discharging centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920689353.5U CN209985593U (en) | 2019-05-14 | 2019-05-14 | Main shaft protection device of lower discharging centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209985593U true CN209985593U (en) | 2020-01-24 |
Family
ID=69294125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920689353.5U Expired - Fee Related CN209985593U (en) | 2019-05-14 | 2019-05-14 | Main shaft protection device of lower discharging centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209985593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210959A (en) * | 2021-12-15 | 2022-03-22 | 中国航发动力股份有限公司 | Vacuum casting furnace main shaft lifter protection device |
-
2019
- 2019-05-14 CN CN201920689353.5U patent/CN209985593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114210959A (en) * | 2021-12-15 | 2022-03-22 | 中国航发动力股份有限公司 | Vacuum casting furnace main shaft lifter protection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200124 |