CN208951123U - A kind of one ball of oilless air compressor eccentric wheel end, one column composite bearing - Google Patents
A kind of one ball of oilless air compressor eccentric wheel end, one column composite bearing Download PDFInfo
- Publication number
- CN208951123U CN208951123U CN201820955321.0U CN201820955321U CN208951123U CN 208951123 U CN208951123 U CN 208951123U CN 201820955321 U CN201820955321 U CN 201820955321U CN 208951123 U CN208951123 U CN 208951123U
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- rollaway nest
- bearing
- cylindrical roller
- steel ball
- ball
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- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 24
- 239000004519 grease Substances 0.000 claims description 13
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 description 10
- 239000003921 oil Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000010702 perfluoropolyether Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model belongs to machinery field, in particular to one ball of a kind of oilless air compressor eccentric wheel end, one column composite bearing, technology used by the utility model are as follows: including bearing outside collar, bearing inner ring and rolling element, the inside of the bearing outside collar is equipped with steel ball outer rollaway nest and cylindrical roller outer rollaway nest, the steel ball outer rollaway nest and cylindrical roller outer rollaway nest is arranged in parallel, the outside of the bearing inner ring is equipped with steel ball interior rollaway nest corresponding with the steel ball outer rollaway nest and cylindrical roller interior rollaway nest, several steel balls are equipped between the steel ball outer rollaway nest and steel ball interior rollaway nest, several cylindrical rollers are equipped between the cylindrical roller outer rollaway nest and cylindrical roller interior rollaway nest.The utility model has the advantages of compact-sized, bearing capacity is stronger, and the service life is longer.
Description
Technical field
The utility model belongs to machinery field, in particular to a kind of one ball of oilless air compressor eccentric wheel end, one column composite shaft
It holds.
Background technique
Air compressor machine, i.e. air compressor are a kind of equipment to compressed gas.Traditional air compressor machine mainly uses oil lubrication
Mode, the disadvantages of it is serious that there are waste of energy, pressure instability, noise is big.In recent years, due to being influenced by environmental issue,
Traditional air compressor machine also gradually changes to oilless air compressor.It is compact-sized compared to conventional types, small in size, high-efficient, weight
Gently, manufacturing cost is low.In same timeliness, 1.5-2.0 times up to common air compressor machine of pressure；And under same energy consumption, keep
Pressure is constant, and gas velocity degree is taken to promote about 1.5 times, largely solves existing air compressor structure complexity and compression efficiency is low
Problem embodies energy-efficient theory, thus is widely used in the fields such as new-energy automobile, and large area is substituted new energy
The higher cost of automobile, reliability is lower, the long-term vortex pump for relying on import.Its working principles are as follows: by (permanent-magnetic energy-saving)
The rotation of motor is converted into crank link mechanism reciprocating motion of the pistons, to realize the compression of air.Two cylinders without oil machine,
Cylinder body is symmetrical in motor side；For four cylinders without oil machine, cylinder body is then symmetrical two-by-two in motor two sides.
It is illustrated herein mainly for eccentric wheel end bearing, existing structure is by needle bearing, eccentric wheel and connecting rod
Composition, needle bearing force fit camshaft, two connecting rods cooperate with bearing outside collar respectively and by nut checks, realized
It is full of, connecting rod drives piston operation.
Promotion due to new-energy automobile to energy conservation, output power and brake request, oilless air compressor requirement is more efficient,
Power ascension, gas output is bigger and due to having oil lubrication to be changed to oil-free lubrication tradition, thus eccentric wheel end bearing load is also
It is bigger.The rotation of eccentric shaft bearing inside race, outer ring is by reciprocal alternating load, and load is mainly by air compressor output pressure and eccentric wheel
The influence of eccentricity.As the main load bearing component in eccentric wheel end, structure will face bigger test.Existing needle bearing arrangement
There are problems that the following aspects:
1), needle bearing bears reciprocating impact load, and current ring of needle roller bearing is relatively thin, and bearing capacity is far from
Foot；
2), under the action of torque load, bearing can generate small beat, therefore bearing will bear axial load, and roll
Needle bearing design is unbearable axial load；
3) the case where, needle bearing inner space is small, can not store a large amount of greases, thus can go out this insufficient lubrication, and need
Frequent greasing, maintenance cost are big；
4), needle bearing temperature rise is higher, worst hot case, and fretting wear occurs in outer ring, and raceway position burn occurs and peels off,
Cause bearing premature failure；
5), outer ring oil guide groove is located at two connecting rod intermediate points, and stress is be easy to cause to concentrate.
Utility model content
The purpose of this utility model is to provide a kind of compact-sized, bearing capacity stronger oilless air compressor eccentric wheel ends
One ball, one column composite bearing.
In order to achieve the above object, a kind of technology used by the utility model are as follows: one ball of oilless air compressor eccentric wheel end
The inside of one column composite bearing, including bearing outside collar, bearing inner ring and rolling element, the bearing outside collar is equipped with steel ball
Outer rollaway nest and cylindrical roller outer rollaway nest, the steel ball outer rollaway nest and cylindrical roller outer rollaway nest are arranged in parallel, in the bearing
The outside of lasso is equipped with steel ball interior rollaway nest corresponding with the steel ball outer rollaway nest and cylindrical roller interior rollaway nest, the steel ball outer rollaway nest
It is equipped with several steel balls between steel ball interior rollaway nest, is equipped between the cylindrical roller outer rollaway nest and cylindrical roller interior rollaway nest several
Cylindrical roller.The utility model middle (center) bearing inside race and bearing outside coil structures can also thicken, under reciprocating impact load more
Add steady；Roller roller diameter increases in the utility model, and compared to former needle bearing, bearing load carrying capacity is also substantially mentioned
It rises.
Preferably, the side of the cylindrical roller interior rollaway nest of bearing inner ring described in the utility model is additionally provided with cylinder rolling
Sub- space washer, the cylindrical roller space washer are equipped with positioning convex ring.
Preferably, the outer at the both ends of bearing outside collar described in the utility model is equipped with sealing element card slot, described
Sealing element is equipped in sealing element card slot, the sealing element is caught on one side in the sealing element card slot, another side with it is described
Bearing inner ring periphery face contact.Sealing element uses FKM material, and Applicable temperature -30 adapts to worst hot case to 230 DEG C.
Preferably, the outer surface of bearing outside collar described in the utility model is equipped with orientation identification slot.To process
With the identification in direction in installation process.
Preferably, steel ball retainer, institute are equipped between steel ball outer rollaway nest described in the utility model and steel ball interior rollaway nest
Several steel balls stated are located in the steel ball retainer.
Preferably, cylinder is equipped between cylindrical roller outer rollaway nest described in the utility model and cylindrical roller interior rollaway nest to roll
Sub- retainer, several cylindrical rollers are located in the cylindrical roller retainer.
Preferably, the space inside sealing element described in the utility model is filled with high-temperature lubricating grease.High temperature lubricating
Grease uses Perfluoropolyether lubricating grease, with the small characteristic of solid additive and volatility, it can be achieved that the nothing of high temperature heavy load occasion
Sorrow lubrication.
Compared with prior art, the utility model has compact-sized, and bearing capacity is stronger, and what the service life is longer is excellent
Point, is more specifically stated are as follows:
A), the utility model middle (center) bearing inside race and bearing outside coil structures thicken, more flat under reciprocating impact load
Surely.
B), roller roller diameter increases in the utility model, and compared to former needle bearing, bearing load carrying capacity is also able to greatly
Width is promoted.
C), the composite bearing in technical solutions of the utility model, can bear radial direction and axial load simultaneously, radial load by
Steel ball and cylindrical roller are born, and axial load is mainly born by steel ball.
D), the bearing in the utility model carries sealing element, can prestore lubricating grease, ensure that fast state lower bearing
Lubrication；And it is not necessarily to frequent greasing, it safeguards into reduction.
E), the sealing element in the utility model uses FKM material, and Applicable temperature -30 adapts to worst hot case to 230 DEG C.
F), the high-temperature lubricating grease in the utility model uses Perfluoropolyether lubricating grease, has solid additive and volatilization
The small characteristic of property, it can be achieved that high temperature heavy load occasion carefree lubrication.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model middle (center) bearing outer collar.
Fig. 3 is the structural schematic diagram of the utility model middle (center) bearing inside race.
Fig. 4 is the structural schematic diagram of space washer in the utility model.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, one ball of a kind of oilless air compressor eccentric wheel end, one column composite bearing, including outside bearing
The inside of lasso 1, bearing inner ring 2 and rolling element, the bearing outside collar 1 is equipped with outside steel ball outer rollaway nest 11 and cylindrical roller
Raceway 12, the steel ball outer rollaway nest 11 and cylindrical roller outer rollaway nest 12 are arranged in parallel, and the outside of the bearing inner ring 2 is set
There are steel ball interior rollaway nest 21 corresponding with the steel ball outer rollaway nest 11 and cylindrical roller interior rollaway nest 22,11 He of steel ball outer rollaway nest
It is equipped with several steel balls 4 between steel ball interior rollaway nest 21, is set between the cylindrical roller outer rollaway nest 12 and cylindrical roller interior rollaway nest 22
There are several cylindrical rollers 5.The utility model middle (center) bearing inside race and bearing outside coil structures can also thicken, and carry in reciprocating impact
It is more steady under lotus；Roller roller diameter increases in the utility model, and compared to former needle bearing, bearing load carrying capacity is also able to
It is substantially improved.
Preferably, the side of the cylindrical roller interior rollaway nest 22 of bearing inner ring 2 described in the utility model is additionally provided with circle
Column roller space washer 3, the cylindrical roller space washer 3 are equipped with positioning convex ring 31.
Preferably, the outer at the both ends of bearing outside collar 1 described in the utility model is equipped with sealing element card slot 13, institute
It states and is equipped with sealing element 8 in sealing element card slot 13, being caught in the sealing element card slot 13 on one side for the sealing element 8 is another
The periphery face contact on side and the bearing inner ring 2.Sealing element uses FKM material, and Applicable temperature -30 adapts to high to 230 DEG C
Warm operating condition.
Preferably, the outer surface of bearing outside collar 1 described in the utility model is equipped with orientation identification slot 10.To add
The identification in direction in work and installation process.
Preferably, steel ball retainer is equipped between steel ball outer rollaway nest described in the utility model 11 and steel ball interior rollaway nest 21
6, several steel balls are located in the steel ball retainer.
Preferably, circle is equipped between cylindrical roller outer rollaway nest described in the utility model 12 and cylindrical roller interior rollaway nest 22
Column roller retainer 5, several cylindrical rollers are located in the cylindrical roller retainer.
Preferably, the space inside sealing element 8 described in the utility model is filled with high-temperature lubricating grease.High temperature lubricating
Grease uses Perfluoropolyether lubricating grease, with the small characteristic of solid additive and volatility, it can be achieved that the nothing of high temperature heavy load occasion
Sorrow lubrication.
Compared with prior art, the utility model has compact-sized, and bearing capacity is stronger, and what the service life is longer is excellent
Point, is more specifically stated are as follows:
A), the utility model middle (center) bearing inside race and bearing outside coil structures thicken, more flat under reciprocating impact load
Surely.
B), roller roller diameter increases in the utility model, and compared to former needle bearing, bearing load carrying capacity is also able to greatly
Width is promoted.
C), the composite bearing in technical solutions of the utility model, can bear radial direction and axial load simultaneously, radial load by
Steel ball and cylindrical roller are born, and axial load is mainly born by steel ball.
D), the bearing in the utility model carries sealing element, can prestore lubricating grease, ensure that fast state lower bearing
Lubrication；And it is not necessarily to frequent greasing, it safeguards into reduction.
E), the sealing element in the utility model uses FKM material, and Applicable temperature -30~230 DEG C adapt to worst hot case.
F), the high-temperature lubricating grease in the utility model uses Perfluoropolyether lubricating grease, has solid additive and volatilization
The small characteristic of property, it can be achieved that high temperature heavy load occasion carefree lubrication.
Claims (7)
1. a kind of one ball of oilless air compressor eccentric wheel end, one column composite bearing, including bearing outside collar, bearing inner ring and rolling
Body, which is characterized in that the inside of the bearing outside collar is equipped with steel ball outer rollaway nest and cylindrical roller outer rollaway nest, the steel ball
Outer rollaway nest and cylindrical roller outer rollaway nest are arranged in parallel, and the outside of the bearing inner ring is equipped with corresponding with the steel ball outer rollaway nest
Steel ball interior rollaway nest and cylindrical roller interior rollaway nest, between the steel ball outer rollaway nest and steel ball interior rollaway nest be equipped with several steel balls, it is described
Cylindrical roller outer rollaway nest and cylindrical roller interior rollaway nest between be equipped with several cylindrical rollers.
2. a kind of one ball of oilless air compressor eccentric wheel end as described in claim 1, one column composite bearing, which is characterized in that described
The side of cylindrical roller interior rollaway nest of bearing inner ring be additionally provided with cylindrical roller space washer, the cylindrical roller locating pad
Circle is equipped with positioning convex ring.
3. a kind of one ball of oilless air compressor eccentric wheel end as described in claim 1, one column composite bearing, which is characterized in that described
The outer at both ends of bearing outside collar be equipped with sealing element card slot, sealing element is equipped in the sealing element card slot, described is close
Sealing is caught on one side in the sealing element card slot, the periphery face contact of another side and the bearing inner ring.
4. a kind of one ball of oilless air compressor eccentric wheel end as described in claim 1, one column composite bearing, which is characterized in that described
Bearing outside collar outer surface be equipped with orientation identification slot.
5. a kind of one ball of oilless air compressor eccentric wheel end as described in claim 1, one column composite bearing, which is characterized in that described
Steel ball outer rollaway nest and steel ball interior rollaway nest between be equipped with steel ball retainer, several steel balls are located at the steel ball retainer
It is interior.
6. a kind of one ball of oilless air compressor eccentric wheel end as described in claim 1, one column composite bearing, which is characterized in that described
Cylindrical roller outer rollaway nest and cylindrical roller interior rollaway nest between be equipped with cylindrical roller retainer, several cylindrical rollers are located at
In the cylindrical roller retainer.
7. a kind of one ball of oilless air compressor eccentric wheel end as claimed in claim 3, one column composite bearing, which is characterized in that described
Sealing element inside space be filled with high-temperature lubricating grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955321.0U CN208951123U (en) | 2018-06-21 | 2018-06-21 | A kind of one ball of oilless air compressor eccentric wheel end, one column composite bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820955321.0U CN208951123U (en) | 2018-06-21 | 2018-06-21 | A kind of one ball of oilless air compressor eccentric wheel end, one column composite bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208951123U true CN208951123U (en) | 2019-06-07 |
Family
ID=66731267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820955321.0U Expired - Fee Related CN208951123U (en) | 2018-06-21 | 2018-06-21 | A kind of one ball of oilless air compressor eccentric wheel end, one column composite bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208951123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483541A (en) * | 2020-11-27 | 2021-03-12 | 人本股份有限公司 | Novel combined bearing |
-
2018
- 2018-06-21 CN CN201820955321.0U patent/CN208951123U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483541A (en) * | 2020-11-27 | 2021-03-12 | 人本股份有限公司 | Novel combined bearing |
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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 |
Granted publication date: 20190607 |