CN207621213U - Generator one-way belt sheave - Google Patents
Generator one-way belt sheave Download PDFInfo
- Publication number
- CN207621213U CN207621213U CN201721177964.9U CN201721177964U CN207621213U CN 207621213 U CN207621213 U CN 207621213U CN 201721177964 U CN201721177964 U CN 201721177964U CN 207621213 U CN207621213 U CN 207621213U
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- China
- Prior art keywords
- groove ball
- deep
- bearing
- needle roller
- generator
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- 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
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- Rolling Contact Bearings (AREA)
Abstract
The utility model provides a kind of generator one-way belt sheave, including wheel hub, axle sleeve, two sets of bearings between wheel hub and axle sleeve and the one-way clutch mechanism between bearing, one-way clutch mechanism includes retainer, several needle rollers and several springs, and bearing includes a set of deep groove ball bearing and a set of unidirectional needle roller deep-groove ball combination bearing.The utility model uses the combination of two sets of bearings of deep groove ball bearing and unidirectional needle roller deep-groove ball combination bearing, not only assembly precision is high, and solves the structure conflict of the simple needle roller combination generator one-way belt sheave high torque slow-speed of revolution, the high-revolving function of high torque is realized, to ensure the high belt pulley performance carried needed for automobile engine and generator of high speed.
Description
Technical field
The utility model is related to electrical generator fields, more particularly to a kind of generator one-way belt sheave.
Background technology
Electric energy is one of most important energy of modern society, and generator is the energy conversion by other forms into electric energy
Mechanical equipment is all being widely applied in industrial and agricultural production, national defence, science and technology and daily life.Generator is worked as automobile
In, as the main power source of automobile, its function is in normal working of engine to institute's power supply for electrical equipment, and simultaneously to storage
Battery charges.It is rotated currently, the rotor of generator is generally all driven by the belt pulley of generator, belt pulley is by transmitting band connection
Engine or other mechanical structures.Belt pulley generally includes the wheel hub being connected with conveyer belt, the axle sleeve for being connected with axle, position
If the dry bearing between wheel hub and axle sleeve and the one-way clutch structure among bearing, the structure design of belt pulley and make
The working efficiency of generator is directly affected with performance.
During the use of generator, when automobile engine or the unexpected acceleration or deceleration of other mechanical structures, belt
The rotating speed of wheel can cause the rotating speed moment of generator amature and belt pulley not also with acceleration or deceleration due to the effect of inertia
It is synchronous, to make to form impact between belt pulley and conveyer belt, vibration or noise are easy tod produce, or even reduce transmission tape lifetime.
In addition, belt pulley can rotate forward reversion when automobile forward-reverse, reverse current is will produce when especially inverting, automobile circuit electric appliance is made
At unfavorable.
Existing producer mostly uses greatly both ends needle bearing and an intermediate list is added to solve the above problems to needle bearing combination,
But as generator speed is higher and higher, it is also more and more prominent that needle bearing is difficult to bear high-revolving drawback.There are also factories
Family adds an intermediate list to needle bearing combination to solve the above problems using both ends deep groove ball bearing, but three sets of bearing combinations
It is low with precision, cause unidirectional needle bearing and both ends deep groove ball bearing movement under force track not coaxial, performance declines.
Invention content
The purpose of this utility model is to provide a kind of generator one-way belt sheaves, unexpected to solve prior art medium velocity
The rotating speed moment of generator amature and belt pulley nonsynchronous problem when change.
The utility model is realized using following technical scheme：A kind of generator one-way belt sheave, including wheel hub, axle sleeve,
Two sets of bearings between the wheel hub and the axle sleeve and the one-way clutch mechanism between the bearing, the list
Include retainer, several needle rollers and several springs to clutch, two sets of bearings include a set of deep groove ball bearing and a set of
Unidirectional needle roller deep-groove ball combination bearing.
The deep groove ball bearing and the unidirectional needle roller deep-groove ball combination bearing respectively include inner ring, outer ring, the zanjon
The outer ring of ball bearing and the outer ring of the unidirectional needle roller deep-groove ball are sheathed on the inner ring of the deep groove ball bearing and described respectively
On the inner ring of unidirectional needle roller zanjon bearing, the outer ring of the deep groove ball bearing is identical with the axial length of inner ring, the unidirectional rolling
The outer ring of needle deep-groove ball combination bearing is identical with the axial length of inner ring.
Preferably, the axial length of the outer ring of the deep groove ball bearing and inner ring is shorter than the unidirectional needle roller deep-groove ball group
The axial length of outer ring and inner ring that sympodium is held.
Preferably, the retainer is set between the outer ring and inner ring of the unidirectional needle roller deep-groove ball combination bearing.
Preferably, the outer wall of the inner ring of the unidirectional needle roller deep-groove ball combination bearing is equipped with self-locking grooves, the retainer
Internal diameter side be equipped with self-locking ring, the self-locking ring is inserted into the self-locking grooves.
Preferably, further include two sealing rings, described two sealing rings be respectively arranged on the deep groove ball bearing outer ring and
Between the outer end of inner ring, between the outer ring and the outer end of inner ring of the unidirectional needle roller deep-groove ball combination bearing.
Preferably, further include two oil sealings, described two oil sealings are respectively arranged on the inner wall both ends of the wheel hub, and with described
Deep groove ball bearing is connected with the outer end of the unidirectional needle roller deep-groove ball combination bearing.
Compared to the prior art the utility model has following advantageous effect：
1) deep groove ball bearing and unidirectional needle roller deep-groove ball combination bearing are used, the combination assembly precision of two sets of bearings is high, solution
Simple needle roller of having determined combines the structure conflict of the generator one-way belt sheave high torque slow-speed of revolution, realizes the high-revolving work(of high torque
Can, to ensure the high belt pulley performance carried needed for automobile engine and generator of high speed.
2) in the locking groove by the inner ring outer diameter that retainer internal diameter fore shaft is stuck in unidirectional needle roller deep-groove ball combination bearing,
It prevents one-way clutch mechanism play phenomenon occur, makes unidirectionally accordingly to enhance from laser intensity.
3) sealing ring between two sets of bearings can effective leakproof fat, take turns hub wall oil sealing can effectively waterproof, oil and dust,
Performance and the service life of generator one-way belt sheave can be promoted.
Description of the drawings
Fig. 1 is the axial section of the utility model embodiment.
Fig. 2 is the axial section of the utility model embodiment bearing.
Specific implementation mode
The utility model is described in further details with reference to the accompanying drawings and detailed description.
As depicted in figs. 1 and 2, the utility model embodiment includes wheel hub 1, axle sleeve 2, is set between wheel hub 1 and axle sleeve 2
Two sets of bearings and the one-way clutch mechanism between bearing.Wheel hub 1 is connected with belt, and by belt with engine phase
Even；Axle sleeve 2 is connected with axle；Bearing includes a set of deep groove ball bearing 3 and a set of unidirectional needle roller deep-groove ball combination bearing 4；Unidirectionally
Clutch includes retainer 5, several needle rollers 6 and several springs 7.
Deep groove ball bearing 3 and unidirectional needle roller deep-groove ball combination bearing 4 respectively include inside and outside two and enclose, outside deep groove ball bearing 3
The outer ring 41 of circle 31 and unidirectional needle roller deep-groove ball combination bearing 4 is sheathed on respectively on the inner ring 32 of deep groove ball bearing 3 and unidirectional rolling
On the inner ring 42 of needle deep-groove ball combination bearing 4, the outer ring 31 of deep groove ball bearing 3 is identical with the axial length of inner ring 32, unidirectional to roll
The outer ring 41 of needle deep-groove ball combination bearing 4 is identical with the axial length of inner ring 42, and the outer ring 31 of deep groove ball bearing 3 and inner ring 32
Axial length be shorter than unidirectional needle roller deep-groove ball combination bearing 4 outer ring 41 and inner ring 42 axial length.It integrally sees, two sets
The outer ring outer wall of bearing is fixedly connected on the inner wall of wheel hub 1, and the inner ring inner wall of two sets of bearings is fixedly connected on the outer wall of axle sleeve 2,
The connection structure being arranged successively from outside to inside is formed from inner ring, the axle sleeve 2 of the outer ring of 1, two set of bearing of wheel hub, two sets of bearings.It adopts
With two sets of construction design of journal bearings of deep groove ball bearing and unidirectional needle roller deep-groove ball combination bearing, not only this two sets of bearing itself assembly
Precision is high, while the assembly precision between wheel hub, axle sleeve is also high, to ensure coaxial operating, improves the usability of bearing
Energy.Preferably, using (the i.e. axial length lengthens) deep groove ball bearing widened or the unidirectional needle roller deep-groove ball built-up shaft widened
4 are held, is conducive to that fastener is installed or sealing element provides supplementary view.
One-way clutch mechanism makes wheel hub 1 that can only be rotated in one direction relative to generator shaft, i.e., when one-way clutch machine
When structure Positive work, wheel hub 1 and axle sleeve 2 and each connecting component between them is made to combine closely to form an entirety realization biography
It is dynamic, conversely, when clutch antiport, wheel hub 1 and axle sleeve 2 and each connecting component between them is made to separate, to
Stop transmission.Retainer 5 is set between the outer ring 41 and inner ring 42 of unidirectional needle roller deep-groove ball combination bearing 4, specifically, unidirectional to roll
42 outer wall of inner ring of needle deep-groove ball combination bearing 4 is equipped with several axially disposed and equally distributed wedge-shaped cambered surface, retainer 5
Several windows equipped with equal amount, window are limited in wedge-shaped cambered surface, while in each window of retainer 5, being all provided with
There are a spring 7 and a needle roller 6, i.e. spring 7 and needle roller 6 to be limited in wedge-shaped cambered surface with retainer 5, one end of spring 7 is solid
It is scheduled on a crossbeam of window, the other end is connected with needle roller 6, and needle roller 6 is resisted against unidirectional needle roller deep-groove ball group by elastic force
Sympodium is held between 4 outer ring 41 and another crossbeam of window, while needle roller 6 makes unidirectional needle roller deep under the thrust of spring 5
The outer ring 41 of ditch ball combination bearing 4 and inner ring 42 closely connect.
The outer wall of the inner ring 42 of unidirectional needle roller deep-groove ball combination bearing 4 is equipped with self-locking grooves 421, the internal diameter one of retainer 5
Side is equipped with self-locking ring 51, and self-locking ring 51 is inserted into self-locking grooves 421, and it is existing that this self-locking structure prevents one-way clutch mechanism play occur
As avoiding the stuck or play phenomenon for leading to retainer 5 with double locating snap ring limits.
Preferably, further include two sealing rings 8, two sealing rings 8 are respectively arranged on outer ring 31 and the inner ring of deep groove ball bearing 3
Between 32 outer end, between the outer ring 41 and the outer end of inner ring 42 of unidirectional needle roller deep-groove ball combination bearing 4.Sealing ring 8 is preferably adopted
With the high-performance high-temperature seal ring of special construction, as generator of engine starts work, the internal temperature of the present embodiment is more next
Higher, grease viscosity is lower and lower, and sealing ring 8 the more can seal the more tight, to ensure that grease is not let out under high temperature and high speed high torque operating mode
Dew improves bearing life.
Preferably, further include two oil sealings 9, two oil sealings 9 are respectively arranged on the inner wall both ends of wheel hub 1, and with deep-groove ball axis
3 are held with the outer end of unidirectional needle roller deep-groove ball combination bearing 4 to be connected.Oil sealing 9 preferably uses high-performance high temperature oil sealing, with environment temperature
The internal temperature of degree and the present embodiment is higher and higher, and oil sealing 9 the more can seal the more tight, prevents outside water, oil and dust from entering bearing
Inside, to ensure the reliability of service life of bearing and the present embodiment.
When the engine starts, dynamo belt drives the wheel hub 1 of the present embodiment to rotate, 1 unidirectional needle roller deep-groove ball of wheel hub
The outer ring 41 of combination bearing 4 rotates, and the outer ring 41 of unidirectional needle roller deep-groove ball combination bearing 4 drives needle roller 6 to rotate, and needle roller 6 drives
The inner ring 42 of unidirectional needle roller deep-groove ball combination bearing 4 rotates, the inner ring 42 and and axle of unidirectional needle roller deep-groove ball combination bearing 4
The axle sleeve 2 being connected drives generator amature to rotate together, and spring 7 is retreated by the elastic force limitation needle roller 6 discharged, prevents from turning when axle
Skidding between wheel hub 1 and axle sleeve 2 when dynamic causes one-way function to fail, and ensure that generator amature and engine is synchronous in the same direction transports
Turn, the function of electric energy is provided to realize electrical power generators as automobile.
When engine retard, reversing, it is flame-out when, dynamo belt drives the wheel hub 1 of hair the present embodiment to slow down, invert, stop
Only, wheel hub 1 drives the outer ring 41 of unidirectional needle roller deep-groove ball combination bearing 4 to slow down, the outer ring of unidirectional needle roller deep-groove ball combination bearing 4
41 drive needle roller 6 to slow down, reversion, stop, and under the action of inertia force, wheel hub 1 drives needle roller 6 to slow down, reversion, stops,
The inner ring 42 of unidirectional needle roller deep-groove ball combination bearing 4 and the axle sleeve 22 being connected with axle drive together generator amature continue to
Preceding rotation, 6 back pressure spring 7 of needle roller retreat together, in this way, the inner ring 42 of wheel hub 1, unidirectional needle roller deep-groove ball combination bearing 4, rolling
Needle 6 generates gap between axle sleeve 2, and wheel hub 1 slows down, reversion, stops, the inner ring 42 of unidirectional needle roller deep-groove ball combination bearing 4
And the axle sleeve 2 being connected with axle drives generator amature continuation to rotate forward, realization continues power generation, the power generation of counter current direction
(to protect automobile circuit electric appliance), the flame-out function for stopping power generation.
Described in synthesis, the utility model uses deep groove ball bearing and unidirectional needle roller deep-groove ball combination bearing, two sets of bearings
Assembly precision height is combined, the structure conflict of the simple needle roller combination generator one-way belt sheave high torque slow-speed of revolution is solved, realizes
High torque high-revolving function, to ensure the high belt pulley performance carried needed for automobile engine and generator of high speed.Pass through
Retainer internal diameter fore shaft is stuck in the locking groove of the inner ring outer diameter of unidirectional needle roller deep-groove ball combination bearing, it is therefore prevented that one-way clutch
There is play phenomenon in mechanism, makes unidirectionally accordingly to enhance from laser intensity.Sealing ring between two sets of bearings can effective leakproof fat,
Take turns hub wall oil sealing can effectively waterproof, oil and dust, can promote performance and the service life of generator one-way belt sheave.
As known by the technical knowledge, the utility model can pass through other essence without departing from its spirit or the reality of essential feature
Scheme is applied to realize.Therefore, embodiment disclosed above, all things considered are all merely illustrative, and are not only
's.All changes that come within the scope of the invention or equivalents of the invention are by the utility model packet
Contain.
Claims (6)
1. a kind of generator one-way belt sheave, including wheel hub, axle sleeve, two sets of bearings between the wheel hub and the axle sleeve
And the one-way clutch mechanism between the bearing, the one-way clutch mechanism include retainer, several needle rollers and several
Spring, it is characterised in that：
Two sets of bearings include a set of deep groove ball bearing and a set of unidirectional needle roller deep-groove ball combination bearing；
The deep groove ball bearing and the unidirectional needle roller deep-groove ball combination bearing respectively include inner ring, outer ring, the deep-groove ball axis
The outer ring of the outer ring and the unidirectional needle roller deep-groove ball held is sheathed on the inner ring of the deep groove ball bearing and described unidirectional respectively
On the inner ring of needle roller zanjon bearing, the outer ring of the deep groove ball bearing is identical with the axial length of inner ring, and the unidirectional needle roller is deep
The outer ring of ditch ball combination bearing is identical with the axial length of inner ring.
2. generator one-way belt sheave according to claim 1, which is characterized in that the outer ring of the deep groove ball bearing and interior
The axial length of circle is shorter than the axial length of the outer ring and inner ring of the unidirectional needle roller deep-groove ball combination bearing.
3. generator one-way belt sheave according to claim 1, which is characterized in that the retainer is set to the unidirectional rolling
Between the outer ring and inner ring of needle deep-groove ball combination bearing.
4. generator one-way belt sheave according to claim 1, which is characterized in that the unidirectional needle roller deep-groove ball built-up shaft
The outer wall of the inner ring held is equipped with self-locking grooves, and the internal diameter side of the retainer is equipped with self-locking ring, described in the self-locking ring is inserted into
Self-locking grooves.
5. generator one-way belt sheave according to claim 1, which is characterized in that further include two sealing rings, described two
A sealing ring is respectively arranged between the outer ring of the deep groove ball bearing and the outer end of inner ring, the unidirectional needle roller deep-groove ball built-up shaft
Between the outer end of the outer ring and inner ring held.
6. generator one-way belt sheave according to claim 1, which is characterized in that further include two oil sealings, it is described two
Oil sealing is respectively arranged on the inner wall both ends of the wheel hub, and with the deep groove ball bearing and the unidirectional needle roller deep-groove ball combination bearing
Outer end be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177964.9U CN207621213U (en) | 2017-09-14 | 2017-09-14 | Generator one-way belt sheave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721177964.9U CN207621213U (en) | 2017-09-14 | 2017-09-14 | Generator one-way belt sheave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621213U true CN207621213U (en) | 2018-07-17 |
Family
ID=62818198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721177964.9U Expired - Fee Related CN207621213U (en) | 2017-09-14 | 2017-09-14 | Generator one-way belt sheave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207621213U (en) |
-
2017
- 2017-09-14 CN CN201721177964.9U patent/CN207621213U/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 |
Granted publication date: 20180717 Termination date: 20210914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |