CN206017640U - Mono-directional overrun generator pulley - Google Patents
Mono-directional overrun generator pulley Download PDFInfo
- Publication number
- CN206017640U CN206017640U CN201621056509.9U CN201621056509U CN206017640U CN 206017640 U CN206017640 U CN 206017640U CN 201621056509 U CN201621056509 U CN 201621056509U CN 206017640 U CN206017640 U CN 206017640U
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- CN
- China
- Prior art keywords
- torsionspring
- mandrel
- support bearing
- belt pulley
- lasso
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Abstract
This utility model is related to belt pulley technical field, a kind of especially mono-directional overrun generator pulley, its belt pulley, lasso, torsionspring and mandrel are sequentially coaxially arranged from outside to inside, left support bearing and right support bearing are arranged on belt pulley two ends, lasso and torsionspring are located between left support bearing and right support bearing, set ring outer wall and belt pulley endoporus interference fit, torsionspring endoporus and mandrel outer wall interference fit, and the embedded lasso inwall in torsionspring one end, when pulley speed is more than or equal to the rotating speed of mandrel, torsionspring internal diameter reduces locking mandrel, when pulley speed is less than the rotating speed of mandrel, the torsionspring internal diameter becomes big and departs from mandrel.This utility model is coordinated using lasso and torsionspring makes generator pulley that there is mono-directional overrun characteristic, it is input into relative to slave unit acceleration or deceleration and caused torsional load such that it is able to reach to reduce or eliminate power, reach the resonance for suppressing drive system, reduce noise, improve lifetime of system.
Description
Technical field
This utility model is related to decoupler technical field, more particularly to a kind of mono-directional overrun generator pulley.
Background technology
It is to complete power transmission, this work side by parts such as belts between automobile engine and electromotor thereon
Formula belongs to belt drives mode.The small rotation speed change of engine side, can just cause unstable, the skidding of belt work, with
And noise, or even the life-span for reducing belt is supervened with this.Present automobile reduces car load vibrations to increase comfort level,
Just increase double mass flywheel on the engine, double mass flywheel but increased the fortune of electromotor while car load vibrations are reduced
Turn lack of uniformity, aggravate the angular oscillation of bent axle, have impact on then the stability of accessory drive system, greatly reduce adnexa system
The system life-span.The technology such as supercharging, direct-injection, these technology is generally adopted to bring performance boost to electromotor than the gasoline engine of higher-end
Meanwhile, also make engine condition more rough, bent axle irregularly shakes aggravation, and bent axle is the former driving force of accessory system,
Irregular shake and the angular oscillation turned round brings no small pressure and a difficult problem to accessory drive system.This problem is also in diesel oil simultaneously
It is found on machine.Electromotor is the maximum adnexa of dynamic rotation inertia in accessory system, and pulley diameters compare crankshaft pulley
Diameter is minimum, so also maximum by crank shaft angle vibration effect.Automatic tensioner is also had than large effect, tensioning wheel
Arm vibrations size is the reflection of system angle magnitude of vibrations, and angular oscillation increase, tensioner arm vibration also accordingly increase, then stretcher
Itself load is also greatly increased, and the life-span also just correspondingly reduces.
Utility model content
Technical problem to be solved in the utility model is：In order to overcome deficiency of the prior art, this utility model to carry
For a kind of mono-directional overrun generator pulley.
This utility model solves its technical problem technical scheme to be taken：A kind of mono-directional overrun dynamo belt
Wheel, including belt pulley, mandrel, left support bearing, right support bearing, lasso and torsionspring, the belt pulley, lasso, torsion
Spring and mandrel are sequentially coaxially arranged from outside to inside, and the left support bearing and right support bearing are arranged on belt pulley two ends, institute
State lasso and torsionspring is located between left support bearing and right support bearing, the set ring outer wall is matched somebody with somebody with belt pulley endoporus interference
Close, the torsionspring endoporus and mandrel outer wall interference fit, and described torsionspring one end is embedded in the lasso wall, described
Torsionspring internal diameter reduces the coupling that locking mandrel realizes belt pulley and mandrel, when pulley speed is less than the rotating speed of mandrel,
The torsionspring internal diameter becomes big and departs from the decoupling that mandrel realizes belt pulley and mandrel.
When the speed of input link belt pulley is higher than the rotating speed of output link mandrel, at this moment due to the work of torsional load
With, torsionspring internal diameter diminishes, and input link and output link are locked by torsionspring, the load of input link by lasso and
Torsionspring is transferred to mandrel.Rubbing action of the power transmission structure by torsionspring and mandrel, by the belt of the device
Wheel and mandrel are locked, and prevent belt pulley and mandrel from there is relative slip, so as to play one-way stop effect；Conversely, when reversely
During rotation, there is no CONTACT WITH FRICTION with mandrel surface in the internal diameter of torsionspring, will appear from certain interval, now mandrel, belt pulley
To rotate against, so as to belt hub cap can also be rotated against with mandrel, rotation input is received torque load solution
Coupling rotation output.
Further, spring socket, institute are provided with order to realize the fixation between lasso and torsionspring, lasso side wall
The insertion section that torsion spring end is provided with outside tilting is stated, the insertion section is inserted in the spring socket.
Further, for the ease of the insertion of insertion section, the spring socket has and torsionspring rotation direction identical inclination angle,
And the spring socket is less than the spring socket and the insertion with the curvature of the first surface of the insertion section interior side contacts
The curvature of the second curved surface of portion's contact outside.Insertion section is that the end of torsionspring directs out and is bent to form, with along turning round
Turn the inclination angle of spring rotation direction, therefore spring socket is also configured as the company that fixation, insertion section and body is facilitated insertion into inclination angle
The place of connecing avoids stress concentration, clashing when contact surface avoids rotation direction from changing using curved surface from reducing making an uproar for curve transition
Sound.
Further, when the expansion of torsionspring internal diameter is departed from mandrel, torsionspring axially deflecting, cause be
System is unstable or produces noise, as the end of torsionspring is not concordant, torsionspring is resisted against spring bearing directly
Stability that is upper or cannot guaranteeing torsionspring axial direction, therefore, also sets between the left support bearing and the torsionspring
There is pad, the pad is resisted against on the left support bearing, and the pad side relative with the torsionspring is provided with
Projection with torsion spring end shape complementarity.The not concordant defect of torsion spring end is made up by projection, it is ensured that reverse bullet
The axial stability of spring, is resisted against on spring bearing by pad and provides support for torsionspring.
Further, the outer ring of the left support bearing and right support bearing and belt pulley interference fit, the left support axle
Hold and the inner ring of right support bearing and the mandrel interference fit.
The beneficial effects of the utility model are：A kind of mono-directional overrun generator pulley that this utility model is provided, adopts
Lasso and torsionspring coordinate makes generator pulley that there is mono-directional overrun characteristic, reduces or elimination power such that it is able to reach
Input accelerates relative to slave unit or slows down and caused torsional load, and then reaches the resonance shape for suppressing drive system
State, releases out from angular oscillation electromotor, greatly increases electromotor job stability itself, mono-directional overrun electromotor skin
Belt wheel transmits the effect that bent axle angular oscillation plays a cut-off for polywedge bet, so polywedge bet can be suppressed to shake, while also can
The arm vibrations of automatic tensioner are substantially reduced, system noise is reduced to a certain extent, and is substantially increased the whole of system
Body life time.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of this utility model most preferred embodiment；
Fig. 2 is the structural representation of this utility model most preferred embodiment；
Fig. 3 is the structural representation of lasso；
Fig. 4 is the structural representation of lasso；
Fig. 5 is the structural representation of torsionspring；
Fig. 6 is the installation diagram of torsionspring and lasso；
Fig. 7 is the structural representation of pad.
In figure：1st, belt pulley, 2, mandrel, 3, left support bearing, 4, right support bearing, 5, lasso, 5-1, spring socket, 5-
2nd, first surface, 5-3, the second curved surface, 6, torsionspring, 6-1, insertion section, 7, pad, 7-1, projection.
Specific embodiment
This utility model is described in detail presently in connection with accompanying drawing.This figure is simplified schematic diagram, only in a schematic way
Basic structure of the present utility model is described, therefore which only shows the composition relevant with this utility model.
As shown in Figure 1-2, a kind of mono-directional overrun generator pulley of the present utility model, including belt pulley 1, mandrel 2, a left side
Spring bearing 3, right support bearing 4, lasso 5, torsionspring 6 and pad 7, the belt pulley 1, lasso 5, torsionspring 6 and core
Axle 2 is sequentially coaxially arranged from outside to inside, and the left support bearing 3 and right support bearing 4 are arranged on 1 two ends of belt pulley, the left side
The outer ring of spring bearing 3 and right support bearing 4 and 1 interference fit of belt pulley, the left support bearing 3 and right support bearing 4
Inner ring and 2 interference fit of the mandrel, as shown in figure 1, left support bearing 3 and right support bearing 4 can be same type of axle
Hold, such as two ends are deep groove ball bearing or needle bearing, as shown in Fig. 2 left support bearing 3 and right support bearing 4 can also be adopted
Different types of bearing is used, such as：One end is deep groove ball bearing, and the other end is needle bearing, the lasso 5, torsionspring 6 and pad
Piece 7 is located between left support bearing 3 and right support bearing 4,5 outer wall of the lasso and 1 endoporus interference fit of belt pulley, the torsion
Turn 6 endoporus of spring and 2 outer wall interference fit of mandrel, and 6 one end of the torsionspring is embedded in 5 wall of the lasso, when belt pulley 1
When rotating speed is more than or equal to the rotating speed of mandrel 2,6 internal diameter of the torsionspring reduces locking mandrel 2 and realizes belt pulley 1 with mandrel 2
Coupling, when 1 rotating speed of belt pulley is less than the rotating speed of mandrel 2,6 internal diameter of the torsionspring becomes the big mandrel 2 that departs from and realizes belt pulley 1
Decoupling with mandrel 2.
As shown in Figure 3-4,5 side wall of the lasso is provided with spring socket 5-1, and the spring socket 5-1 has and torsion
6 rotation direction identical inclination angle of spring, and the song of the spring socket 5-1 and first surface 5-2 of the insertion section 6-1 interior side contacts
Curvature of the rate less than the spring socket 5-1 and the second curved surface 5-3 of the insertion section 6-1 contact outsides.
As seen in figs. 5-6,6 end of the torsionspring is provided with the insertion section 6-1 of outside tilting, and the insertion section 6-1 is inserted
Enter in the spring socket 5-1.
As shown in fig. 7, be additionally provided with pad 7 between the left support bearing 3 and the torsionspring 6, the pad 7 against
On the left support bearing 3, the side relative with the torsionspring 6 of the pad 7 is provided with and 6 end shape of torsionspring
The complementary raised 7-1 of shape.
Operation principle：
During normal mode of operation, driven by engine electromotor rotary work, electromotor output loads, by belt by load
Belt pulley 1 is passed to, belt pulley 1 starts to rotate, belt pulley 1 transfers load to lasso 5 with 5 interference fit of lasso and makes lasso 5
Rotate with belt pulley 1, insertion section 6-1 one end of torsionspring 6 starts quick rotation with lasso 5, due to 2 outer wall of mandrel and torsion
6 inner ring interference fit of spring makes to produce frictional force on the two contact surface, as 1 rotating speed of belt pulley is more than 2 rotating speed of mandrel, therefore,
Speed difference is produced at 6 two ends of torsionspring, is reduced 6 internal diameter of torsionspring and is locked with mandrel 2, realize that load passes through 5 He of lasso
Torsionspring 6 is delivered on mandrel 2 by belt pulley 1, ramps up mandrel 2, and mandrel 2 is connected with generator shaft by screw thread,
Transfer loads to electromotor；
When the rotating speed of mandrel 2 reaches predetermined speed, belt pulley 1 starts quick deceleration, and belt pulley 1 makes torsion by lasso 5
The insertion section 6-1 one end for turning spring 6 quickly reduces with the deceleration of lasso 5, and the other end of torsionspring 6 is due to same with mandrel 2
Step is rotated, and makes to produce speed difference on 6 two ends of torsionspring, so that 6 internal diameter of torsionspring expands departs from mandrel 2, now mandrel 2
To rotate against with belt pulley 1, rotation input is received torque load decoupling rotation output.
With above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work
Personnel can carry out various change and modification completely in the range of without departing from this utility model.This utility model
Technical scope is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of mono-directional overrun generator pulley, it is characterised in that：Including belt pulley (1), mandrel (2), left support bearing
(3), right support bearing (4), lasso (5) and torsionspring (6), belt pulley (1), lasso (5), torsionspring (6) and core
Axle (2) is sequentially coaxially arranged from outside to inside, and left support bearing (3) and right support bearing (4) are arranged on belt pulley (1) two
End, lasso (5) and torsionspring (6) positioned between left support bearing (3) and right support bearing (4), lasso (5) outward
Wall and belt pulley (1) endoporus interference fit, torsionspring (6) endoporus and mandrel (2) outer wall interference fit, and the torsion
Spring (6) one end is embedded in the lasso (5) wall, when belt pulley (1) rotating speed is more than or equal to the rotating speed of mandrel (2), the torsion
Turn spring (6) internal diameter and reduce the coupling that locking mandrel (2) realizes belt pulley (1) and mandrel (2), when belt pulley (1) rotating speed is less than
During the rotating speed of mandrel (2), torsionspring (6) internal diameter becomes big and departs from the solution that mandrel (2) realizes belt pulley (1) and mandrel (2)
Coupling.
2. mono-directional overrun generator pulley as claimed in claim 1, it is characterised in that：Lasso (5) side wall is provided with
Spring socket (5-1), torsionspring (6) end are provided with the insertion section (6-1) of outside tilting, and insertion section (6-1) is inserted
Enter in spring socket (5-1).
3. mono-directional overrun generator pulley as claimed in claim 2, it is characterised in that：Spring socket (5-1) has
With torsionspring (6) rotation direction identical inclination angle, and the spring socket (5-1) and the of the insertion section (6-1) interior side contacts
The curvature of one curved surface (5-2) is less than the second curved surface (5- of spring socket (5-1) and the insertion section (6-1) contact outside
3) curvature.
4. mono-directional overrun generator pulley as claimed in claim 1, it is characterised in that：Left support bearing (3) and institute
State and between torsionspring (6), be additionally provided with pad (7), pad (7) are resisted against on left support bearing (3), the pad
(7) side relative with the torsionspring (6) is provided with the projection (7-1) complementary with torsionspring (6) end shape.
5. mono-directional overrun generator pulley as claimed in claim 1, it is characterised in that：Left support bearing (3) and right
The inner ring of the outer ring of spring bearing (4) and belt pulley (1) interference fit, left support bearing (3) and right support bearing (4) and
Mandrel (2) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056509.9U CN206017640U (en) | 2016-09-14 | 2016-09-14 | Mono-directional overrun generator pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056509.9U CN206017640U (en) | 2016-09-14 | 2016-09-14 | Mono-directional overrun generator pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017640U true CN206017640U (en) | 2017-03-15 |
Family
ID=58260687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621056509.9U Active CN206017640U (en) | 2016-09-14 | 2016-09-14 | Mono-directional overrun generator pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017640U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019491A (en) * | 2018-01-30 | 2018-05-11 | 河南省西峡汽车水泵股份有限公司 | A kind of method for preventing that belt pulley from loading in mixture |
| CN108869697A (en) * | 2018-06-26 | 2018-11-23 | 倪景宁 | A kind of manifold type single-way belt pulley of automobile generator |
-
2016
- 2016-09-14 CN CN201621056509.9U patent/CN206017640U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019491A (en) * | 2018-01-30 | 2018-05-11 | 河南省西峡汽车水泵股份有限公司 | A kind of method for preventing that belt pulley from loading in mixture |
| CN108019491B (en) * | 2018-01-30 | 2023-04-28 | 飞龙汽车部件股份有限公司 | Method for preventing belt pulleys from being mixed |
| CN108869697A (en) * | 2018-06-26 | 2018-11-23 | 倪景宁 | A kind of manifold type single-way belt pulley of automobile generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 213000 Longxiang Road, Wujin high tech Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Nanfang Precision Industry Co.,Ltd. Address before: 213164 No.9, Longxiang Road, Wujin high tech Zone, Changzhou City, Jiangsu Province Patentee before: Jiangsu Nanfang Bearing Co.,Ltd. |
|
| CP03 | Change of name, title or address |