CN209140502U - A kind of main shaft bearing inner ring cooling structure - Google Patents
A kind of main shaft bearing inner ring cooling structure Download PDFInfo
- Publication number
- CN209140502U CN209140502U CN201822133808.3U CN201822133808U CN209140502U CN 209140502 U CN209140502 U CN 209140502U CN 201822133808 U CN201822133808 U CN 201822133808U CN 209140502 U CN209140502 U CN 209140502U
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- air inlet
- main shaft
- ring
- cooling structure
- inner ring
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Abstract
The utility model discloses a kind of main shaft bearing inner ring cooling structure, including shell, shaft is installed in the shell, the front end of the shaft is equipped with a pair of of fore bearing, and rear end is equipped with a pair of of rear bearing；Inner shield ring and outer retaining ring are installed between two fore bearings, are provided with gap between the outer retaining ring and the inner shield ring；Air inlet and gas vent are offered on the wall of the shell, are opened up on the outer retaining ring there are two venthole；The two ventholes respectively correspond and are connected to air inlet and gas vent, and the venthole is also connected to gap.Beneficial effect is: gas can be entered in the gap between inner shield ring and outer retaining ring by air inlet, then the heat on inner shield ring is taken away by gas vent, to realize to the effect of fore bearing inner ring fast cooling, it is able to extend the service life of bearing, improves the service performance of main shaft.
Description
Technical field
The utility model relates to main shaft bearing cooling fields, and in particular to a kind of main shaft bearing inner ring cooling structure.
Background technique
Main shaft is the core component of lathe, and the performance of main shaft and service life directly determine performance and the service life of lathe, and lead
The main reason for axis damages is the damage of main shaft bearing, mainly there is that foreign substance pollution, carrying be excessive, lubrication the reason of bearing damage
Failure etc., and temperature anomaly is the tendency of bearing damage, and general main spindle front bearing is main support end, and bearing specification is big or quantity
It is more, thus calorific value is big, it is the position broken down at first that temperature is high, and the temperature of bearing inner race is higher than outer ring temperature, because
This is cooling to the inner ring of main spindle front bearing, helps to improve the service life of bearing, to extend the service life of main shaft, reduces
The cost of enterprise.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of main shaft bearing inner ring cooling structure,
Fore bearing inner ring can quickly and effectively be cooled down, and structure is simple.
The utility model achieves the above object through the following technical schemes:
A kind of main shaft bearing inner ring cooling structure, including shell are equipped with shaft in the shell, the front end peace of the shaft
Equipped with a pair of of fore bearing, rear end is equipped with a pair of of rear bearing；Inner shield ring and outer retaining ring are installed between two fore bearings, it is described outer
Gap is provided between retaining ring and the inner shield ring；Air inlet and gas vent, the outer retaining ring are offered on the wall of the shell
On open up there are two venthole；The two ventholes respectively correspond and are connected to air inlet and gas vent, the venthole also with sky
Gap connection.
Using above technical scheme, gas is passed through by air inlet, gas along the venthole on air inlet, outer retaining ring into
Enter in gap, since inner shield ring is in contact with the inner ring of fore bearing, plays the role of cooling fin, and gas is blown on inner shield ring,
Heat on inner shield ring is taken away, gas will have heat along another venthole on outer retaining ring and by gas vent at this time
Gas discharge, to realize the effect for playing fast cooling to inner shield ring and fore bearing inner ring using the flowing of gas.
Preferably, the air inlet includes the first air inlet opened up along axial direction and the second air inlet radially opened up
Hole, first air inlet are connected to second air inlet；
The gas vent includes the first row stomata opened up along axial direction and the second row stomata radially opened up, and described first
Air inlet is connected to the second row stomata.
Preferably, the front end of the shaft is equipped with front cover, the rear end of the shaft is equipped with rear cover, covers after described
It respectively corresponds the first air inlet and first row stomata offers air inlet and exhaust outlet；
The air inlet and the exhaust outlet are equipped with internal screw thread, for connecting suction nozzle and outlet nozzle.
Preferably, first air inlet and the first row stomata are distributed about the axisymmetrical of shaft.
Preferably, offering annular groove on the inside of the outer retaining ring, the venthole is connected to the annular groove.
Preferably, the outer ring face of the inner shield ring circumferentially offers several radiating grooves.
Preferably, the radiating groove is arc groove, square groove or helicla flute.
To sum up, the utility model has the beneficial effects that: gas can be entered by air inlet inner shield ring and outer retaining ring it
Between gap in, then the heat on inner shield ring is taken away by gas vent, thus realize to fore bearing inner ring fast cooling
Effect is able to extend the service life of bearing, improves the service performance of main shaft.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the portion the A schematic enlarged-scale view of Fig. 1.
The reference numerals are as follows:
1, shell；2, shaft；3, rear cover；4, front cover；5, the first air inlet；6, first row stomata；7, exhaust outlet；8, air inlet
Mouthful；9, rear bearing；10, fore bearing；11, inner shield ring；12, outer retaining ring；13, plug screw；14, axle sleeve；15, waterproof cover；16, second into
Stomata；17, venthole；18, gap；19, radiating groove；20, second row stomata；21, annular groove.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Referring to shown in Fig. 1-Fig. 2, the utility model provides a kind of main shaft bearing inner ring cooling structure, including shell 1, institute
It states and shaft 2 is installed in shell 1, the front end of the shaft 2 is equipped with a pair of of fore bearing 10, and rear end is equipped with a pair of of rear bearing 9；Two
Inner shield ring 11 and outer retaining ring 12 are installed between a fore bearing 10.It is additionally provided with axle sleeve 14 between fore bearing 10 and rear bearing 9, is used for
Support two bearings.The inner shield ring 11 is used to keep off the inner ring of fore bearing 10, and the outer retaining ring 12 is used to keep off the outer of fore bearing 10
Circle, and inner shield ring 11 is contacted with the inner ring of fore bearing 10, also acts as the effect of cooling fin.The outer retaining ring 12 and the inner shield ring
Gap 18 is provided between 11, the distance in the gap 18 is in 0.1mm-0.5mm, preferably 0.3mm.It is opened on the wall of the shell 1
Equipped with air inlet and gas vent, opened up on the outer retaining ring 12 there are two venthole 17；The two ventholes 17 respectively correspond simultaneously
Connection air inlet and gas vent, the venthole 17 are also connected to gap 18.
Using above technical scheme, gas is passed through by air inlet, gas is along the venthole on air inlet, outer retaining ring 12
17 enter in gap 18, since inner shield ring 11 is in contact with the inner ring of fore bearing 10, play the role of cooling fin, and gas is blown to
On inner shield ring 11, the heat on inner shield ring 11 is taken away, gas along another venthole 17 on outer retaining ring 12 and leads to later
It crosses gas vent the gas with heat is discharged, to realize using the flowing of gas to 10 inner ring of inner shield ring 11 and fore bearing
Play the effect of fast cooling.
As this case preferred embodiment, the air inlet includes the first air inlet 5 opened up along axial direction and radially
The second air inlet 16 opened up, first air inlet 5 are connected to second air inlet 16；The gas vent includes along axial direction
The first row stomata 6 opened up and the second row stomata 20 radially opened up, first air inlet 5 and the second row stomata 20
Connection.In order to easy to process, the second air inlet 16 and second row stomata 20 radially opened up directly adds from the lateral surface of shell
Work, opening are all made of plug screw 13 and are sealed blocking.
The front end of the shaft 2 is equipped with front cover 4, and the rear end of the shaft 2 is equipped with rear cover 3, also sets on the front cover 4
There is waterproof cover 15, is used for waterproof.The first air inlet 5 is respectively corresponded on the rear cover 3 and first row stomata 6 offers air inlet 8
With exhaust outlet 7.The air inlet 8 and the exhaust outlet 7 are equipped with internal screw thread, for connecting suction nozzle and outlet nozzle.Described
One air inlet 5 and the first row stomata 6 are distributed about the axisymmetrical of shaft.
The inside of the outer retaining ring 12 offers annular groove 21, and the venthole 17 is connected to the annular groove 21, specifically
, which is conducive to increase the direct contact area of gas and inner shield ring 11, increases cooling effect.Further, in described
The outer ring face of retaining ring 11 circumferentially offers several radiating grooves 19, can increase the heat dissipation area of inner shield ring 11, thus into one
Step increases cooling effect.Preferably, the radiating groove 19 is arc groove, square groove or helicla flute, and radiating groove 19 is selected as 2-3
A, the structure of the radiating groove 19 is not limited merely to these three shapes.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (7)
1. a kind of main shaft bearing inner ring cooling structure, including shell, shaft is installed in the shell, the front end installation of the shaft
There is a pair of of fore bearing, rear end is equipped with a pair of of rear bearing；Inner shield ring and outer retaining ring are installed between two fore bearings, feature exists
In: gap is provided between the outer retaining ring and the inner shield ring；Air inlet and gas vent, institute are offered on the wall of the shell
State venthole there are two opening up on outer retaining ring；The two ventholes respectively correspond and are connected to air inlet and gas vent, the ventilation
Hole is also connected to gap.
2. a kind of main shaft bearing inner ring cooling structure according to claim 1, it is characterised in that: the air inlet includes along axis
To the first air inlet opened up and the second air inlet radially opened up, first air inlet and second air inlet connect
It is logical；
The gas vent includes the first row stomata opened up along axial direction and the second row stomata radially opened up, first air inlet
Hole is connected to the second row stomata.
3. a kind of main shaft bearing inner ring cooling structure according to claim 2, it is characterised in that: install the front end of the shaft
There is front cover, the rear end of the shaft is equipped with rear cover, covers after described and respectively corresponds the first air inlet and first row stomata opens up
There are air inlet and exhaust outlet；
The air inlet and the exhaust outlet are equipped with internal screw thread, for connecting suction nozzle and outlet nozzle.
4. a kind of main shaft bearing inner ring cooling structure according to Claims 2 or 3, it is characterised in that: first air inlet
Axisymmetrical with the first row stomata about shaft is distributed.
5. a kind of main shaft bearing inner ring cooling structure according to claim 1, it is characterised in that: opened on the inside of the outer retaining ring
Equipped with annular groove, the venthole is connected to the annular groove.
6. a kind of main shaft bearing inner ring cooling structure according to claim 1, it is characterised in that: the outer ring face of the inner shield ring
Circumferentially offer several radiating grooves.
7. a kind of main shaft bearing inner ring cooling structure according to claim 6, it is characterised in that: the radiating groove is circular arc
Slot, square groove or helicla flute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822133808.3U CN209140502U (en) | 2018-12-19 | 2018-12-19 | A kind of main shaft bearing inner ring cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822133808.3U CN209140502U (en) | 2018-12-19 | 2018-12-19 | A kind of main shaft bearing inner ring cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209140502U true CN209140502U (en) | 2019-07-23 |
Family
ID=67290365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822133808.3U Active CN209140502U (en) | 2018-12-19 | 2018-12-19 | A kind of main shaft bearing inner ring cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209140502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775635A (en) * | 2021-09-30 | 2021-12-10 | 常州市卓赢机械有限公司 | Main shaft that rock wool centrifuge was used |
-
2018
- 2018-12-19 CN CN201822133808.3U patent/CN209140502U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775635A (en) * | 2021-09-30 | 2021-12-10 | 常州市卓赢机械有限公司 | Main shaft that rock wool centrifuge was used |
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