CN109538733A - A kind of damper pulley - Google Patents
A kind of damper pulley Download PDFInfo
- Publication number
- CN109538733A CN109538733A CN201811561407.6A CN201811561407A CN109538733A CN 109538733 A CN109538733 A CN 109538733A CN 201811561407 A CN201811561407 A CN 201811561407A CN 109538733 A CN109538733 A CN 109538733A
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- China
- Prior art keywords
- mandrel
- inner ring
- torsional spring
- pulley
- helical torsional
- Prior art date
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/46—Split pulleys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/124—Elastomeric springs
- F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0031—Shaft assemblies for gearings with gearing elements rotatable supported on the shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0037—Special features of coaxial shafts, e.g. relative support thereof
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Pulleys (AREA)
Abstract
The invention discloses a kind of damper pulley, including pulley body, pulley body includes mandrel and is set on mandrel and can be around the belt pulley of the axis rotation of mandrel, and being arranged to be formed between inner ring of mandrel and belt pulley is arranged gap；Helical torsional spring is also arranged on mandrel, helical torsional spring, which is located at, to be arranged in gap, one end of helical torsional spring is fixedly connected with mandrel, the other end of helical torsional spring is fixedly connected with belt pulley, and when belt pulley is rotated relative to mandrel, radial dilatation can occur for helical torsional spring to being arranged inner ring or radial contraction to mandrel being arranged in gap.Above-mentioned damper pulley, pass through the effect of the damping buffering of helical torsional spring, so as to reduce impact of the instantaneous speed difference to belt train between two transmission shafts, if the problem of then belt pulley being applied in the powerdriven belt train of engine, belt disc-coupled vibration can be alleviated significantly.
Description
Technical field
The present invention relates to power transmission technology field more particularly to a kind of damper pulleys.
Background technique
Engine generallys use V-ribbed belt to transmit power for attachmentes such as generator, air-conditionings, since engine was being run
The shafting torsion generated in journey can impact V-ribbed belt whole system, generate biggish vibration to cause the tensioning wheel service life
It reduces, V-ribbed belt train noise increases；For generator by rotor, stator as power generation maincenter, rotary inertia is larger, becomes in engine
V-ribbed belt train can also be damaged when operating condition.The driving especially needed in commercial vehicle field, attachment (such as generator) itself
Power is larger, and engine lightweight, high strengthening trend also result in torsional vibration of shafting and further increase, V-ribbed belt train
Reliability is by serious challenge.
The vibration for mainly reducing train using the damper pulley of unidirectional couplings at present, is by one-way clutch
Form realizes decoupling.Working principle, which is the decoupled system that is formed by one-way clutch, pivots the motor of generator and skin
Belt wheel rotation is divided into inside and outside two parts, and when the revolving speed of engine reduces namely the motor pivot revolving speed of generator is greater than skin
Under the speed conditions of belt wheel, the inconsistent caused vibration of the two moment revolving speed can be eliminated by one-way clutch decoupling at this time
It is dynamic.
But when the revolving speed of engine improve when namely generator motor pivot revolving speed be less than belt pulley revolving speed work
Under condition, one-way clutch does not work, and the performance of belt pulley is no different with conventional rigid belt pulley at this time, therefore can not eliminate time operating condition
Under disc-coupled vibration.
In conclusion how to solve what belt train of the engine under variable working condition for engine power transmission was easily vibrated
Problem has become the technical problem of those skilled in the art's urgent need to resolve.
Summary of the invention
The object of the present invention is to provide a kind of damper pulleys, to solve engine under variable working condition for engine power
The problem of belt train of transmission is easily vibrated.
To achieve the goals above, the present invention provides a kind of damper pulley, including pulley body, the belt pulleys
Ontology includes mandrel and is arranged on the mandrel and can be around the belt pulley of the axis rotation of the mandrel, the mandrel and institute
State being arranged to be formed between inner ring and being arranged gap for belt pulley；Helical torsional spring, the spiral are also arranged on the mandrel
Torsionspring is arranged in gap described in being located at, and one end of the helical torsional spring is fixedly connected with the mandrel, the spiral
The other end of torsionspring is fixedly connected with the belt pulley, and when the belt pulley is rotated relative to the mandrel, the spiral shell
Radial dilatation can occur for rotation torsionspring to inner ring or the radial contraction of being arranged to the mandrel in described be arranged in gap.
Preferably, the corresponding position fixing sleeve for being arranged the helical torsional spring is equipped with mandrel damping sleeve on the mandrel,
Described be arranged corresponds to the position of the helical torsional spring and is fixedly embedded at belt wheel damping sleeve on inner ring.
Preferably, be further fixedly arranged on fixed block on the mandrel damping sleeve, the helical torsional spring it is corresponding with it is described
One end of mandrel connection is fixed on the fixed block.
Preferably, the end of the belt wheel damping sleeve is additionally provided with notch, it is described be arranged on inner ring to be provided with lacked with described
The compatible boss of mouth.
Preferably, the quantity of the notch is multiple, and being arranged circumferentially in the belt wheel damping sleeve.
Preferably, the mandrel and described be arranged between inner ring are connected by bearing, the inner ring of the bearing and the core
Axis is fixedly connected, and the outer ring of the bearing is fixedly connected with the inner ring that is arranged, and the quantity of the bearing is two, the spiral shell
Torsionspring is revolved to be located between two bearings.
Preferably, two bearings are also provided with limit stop ring far from the side of the helical torsional spring, described
The outer edge of limit stop ring is embedded to be arranged on inner ring described.
Preferably, the both ends for being arranged inner ring are respectively arranged with preceding sealing cover and rear sealing cover.
Preferably, the rear sealing cover is arranged on the mandrel, and one end of sealing cover after installation is corresponded on the mandrel
Be provided with the limited step of radial protrusion, it is described after the inward flange of sealing cover be located at the limited step and the inner ring that is arranged
Between the inner ring of the bearing of corresponding end, annular groove, the rear sealing cover are provided in the corresponding end surface of the belt pulley
Outer edge be located in the annular groove.
Preferably, the shaft core position of the mandrel is provided with installation through-hole, from the installation through-hole can by bolt with
The shaft end of corresponding transmission shaft is fixedly connected, and the preceding sealing cover is press-fitted in the corresponding end for being arranged inner ring, and is covered and be located at institute
On the outside of the head for stating bolt.
Introduce content, damper pulley, including pulley body compared to background technique, pulley body include mandrel and
It is set on mandrel and set can be formed with around the belt pulley of the axis rotation of mandrel, mandrel and being arranged between inner ring for belt pulley
If gap；Helical torsional spring is also arranged on mandrel, helical torsional spring, which is located at, to be arranged in gap, and the one of helical torsional spring
End is fixedly connected with mandrel, and the other end of helical torsional spring is fixedly connected with belt pulley, and when belt pulley is rotated relative to mandrel
When, radial dilatation can occur for helical torsional spring to being arranged inner ring or radial contraction to mandrel being arranged in gap.It is above-mentioned to subtract
Belt pulley shake in practical work process, the outer ring that is arranged of belt pulley is connect by belt with a transmission shaft driven, mandrel and
Another transmission shaft is concentric to be fixedly connected, and when there is instantaneous speed difference between two transmission shafts, helical torsional spring can
Play the role of damping buffering, so as to reduce impact of the instantaneous speed difference to belt train between two transmission shafts, if then
The problem of belt pulley being applied in the powerdriven belt train of engine, belt disc-coupled vibration can be alleviated significantly.
Detailed description of the invention
Fig. 1 is the whole schematic cross-sectional view of damper pulley provided in an embodiment of the present invention；
Fig. 2 is the section view knot for being arranged formation between inner ring and being arranged gap of mandrel provided in an embodiment of the present invention and belt pulley
Structure schematic diagram；
Fig. 3 is the schematic cross-sectional view provided in an embodiment of the present invention for being arranged and helical torsional spring being arranged in gap；
Fig. 4 is the structural schematic diagram of belt wheel damping sleeve provided in an embodiment of the present invention；
Fig. 5 is belt wheel damping sleeve provided in an embodiment of the present invention and the schematic cross-sectional view being arranged after inner ring assembly；
Fig. 6 is the structural schematic diagram of the fixed helical torsional spring of fixed block provided in an embodiment of the present invention；
Fig. 7 is the structural representation for being arranged inner ring that helical torsional spring provided in an embodiment of the present invention is fixed on belt pulley
Figure；
Fig. 8 is the schematic cross-sectional view that preceding sealing cover provided in an embodiment of the present invention and rear sealing cover assemble；
Drive mechanism schematic diagram of the Fig. 9 between engine provided in an embodiment of the present invention and generator.
In figure 1 above-Fig. 9,
It is mandrel 1, belt pulley 2, helical torsional spring 3, mandrel damping sleeve 4, belt wheel damping sleeve 5, fixed block 6, notch 7, convex
Platform 8, limit stop ring 10, preceding sealing cover 11, rear sealing cover 12, limited step 13, annular groove 14, bolt 15, starts bearing 9
Machine 16, generator 17, V-ribbed belt 18.
Specific embodiment
Core of the invention is to provide a kind of damper pulley, to solve engine under variable working condition for engine power
The problem of belt train of transmission is easily vibrated.
In order to make those skilled in the art more fully understand technical solution provided by the invention, below in conjunction with attached drawing and
The present invention is described in further detail for specific embodiment.
As shown in figs. 1-9, a kind of damper pulley provided in an embodiment of the present invention, including pulley body, belt pulley
Ontology include mandrel 1 and be set on mandrel 1 and can around the belt pulley 2 of the axis rotation of mandrel 1, mandrel 1 and belt pulley 2
It is arranged to be formed between inner ring and is arranged gap；Helical torsional spring 3 is also arranged on mandrel 1, helical torsional spring 3, which is located at, to be arranged
In gap, one end of helical torsional spring 3 is fixedly connected with mandrel 1, and the other end and belt pulley 2 of helical torsional spring 3 are fixed
Connection, and when belt pulley 2 is rotated relative to mandrel 1, radial dilatation can occur for helical torsional spring 3 to set being arranged in gap
If inner ring or radial contraction are to mandrel 1.
Above-mentioned damper pulley, in practical work process, the outer ring that is arranged of belt pulley passes through belt and a transmission shaft
Transmission connection, mandrel with another transmission shaft is concentric is fixedly connected, when there is instantaneous speed difference between two transmission shafts, spiral shell
Rotation torsionspring can play the role of damping buffering, so as to reduce between two transmission shafts instantaneous speed difference to belt train
Impact, if then by the belt pulley be applied to engine powerdriven belt train in, belt pulley can be alleviated significantly
The problem of system's vibration.
In some specific embodiments, in order to avoid helical torsional spring 3 during radial dilatation to mandrel
Surface generates the stability for wearing and influencing the operation of mandrel, and the corresponding position for being arranged helical torsional spring 3 is fixed on mandrel 1
It is arranged with mandrel damping sleeve 4；Similarly, in order to avoid helical torsional spring during radial dilatation to be arranged inner ring generate abrasion
And the stability of the operation of belt pulley is influenced, the position that helical torsional spring 3 is corresponded on being arranged inner ring is fixedly embedded at belt wheel
Damping sleeve 5.It should be noted that in general, fixed form between mandrel damping sleeve and mandrel and it is arranged inner ring and belt wheel
The mode that fixed form between damping sleeve is all made of interference fit realizes fixation.Of course, it should be understood that above-mentioned interference is matched
The mode of conjunction is only the preferable examples of the embodiment of the present invention, is also possible to other common fixation sides of those skilled in the art
Formula, such as the mode etc. of welding or screw positioning.
In some more particular embodiments, in order to facilitate the convenience that helical torsional spring 3 and mandrel are connected and fixed,
Fixed block 6 is further fixedly arranged on mandrel damping sleeve 4, the corresponding one end connecting with mandrel 1 of helical torsional spring 3 is fixed on
Determine on block 6.Of course, it should be understood that being also possible to that directly helical torsional spring is directly anchored on mandrel, only originally
Invention is preferably in such a way that setting fixed block is fixed.It should be noted that fixed block and mandrel damping sleeve can be with
It is an integral structure and is also possible to split type structure, in the present invention.The structure type of fixed block 6 preferably uses annular fixing sleeve
Structure type, and annular fixing sleeve is fixedly connected with mode with mandrel damping sleeve, can be connected by the way of interference fit, it can also
Using common other fixed forms connection of those skilled in the art, such as welding or screw connection etc..
In order to guarantee belt wheel damping sleeve 5 be arranged the stability being fixedly connected between inner ring, in the end of belt wheel damping sleeve 5
It is additionally provided with notch 7, is arranged on inner ring and is provided with boss 8 compatible with notch 7.Due to belt wheel damping sleeve and be arranged inner ring it
Between other than the fixation of interference fit, additionally it is possible to further positioned by boss 8 and the cooperation of notch 7, both prevent from sending out
It is raw to relatively rotate.
It should be noted that the arrangement quantity of the notch 7 can be for one or multiple, the present invention is preferably by notch
It is arranged to multiple modes, and being arranged circumferentially in belt wheel damping sleeve 5, design in this way can be avoided stress concentration, make
The effect of rotation must be prevented more preferable, while can also reduce the risk of notch damage as far as possible.
In further embodiment, mandrel 1 and it is arranged being arranged gap and can realize by bearing support between inner ring.
Specific structure are as follows: mandrel 1 and be arranged between inner ring by bearing 9 (such as deep groove ball bearing) connect, the inner ring and mandrel of bearing 9
1 is fixedly connected, and the outer ring of bearing 9 is fixedly connected with inner ring is arranged, and the quantity of bearing 9 is two, and helical torsional spring 3 is located at
Between two bearings 9.Also facilitate shape while realizing axis rotation of the belt pulley around mandrel in such a way that duplex bearing is set
At being arranged gap, and the arrangement of helical torsional spring is more convenient.Of course, it should be understood that being realized above by duplex bearing
The mode of support is only the preferable examples of the embodiment of the present invention, in actual application, can also be arranged inner ring and/
Or the structure of annular protrusion is set on mandrel, between capable of equally guaranteeing that belt pulley is formed while can rotate on mandrel and is arranged
Gap, only higher for the processing request of component, difficulty of processing is relatively large, and is sliding friction, and components are easy damage
It is bad.It should be noted that if mandrel damping sleeve is provided on mandrel at this time, the both ends of mandrel damping sleeve respectively with corresponding end
The inner ring of bearing offsets.
In further embodiment, in order to avoid bearing 9 moves axially on mandrel 1, generally in two axis
It holds 9 sides far from helical torsional spring 3 and is also provided with limit stop ring 10, the outer edge of limit stop ring 10 is embedded in being arranged
On circle.
In some more specifical embodiments, in order to guarantee the structure being arranged inside inner ring from the shadow of external environment
It rings, is respectively arranged with preceding sealing cover 11 and rear sealing cover 12 at the both ends for being arranged inner ring.To ensure that the inside for being arranged inner ring
Component leakproofness, greatly improve the service life of belt pulley entirety.
In further embodiment, above-mentioned rear sealing cover 12 is set on mandrel 1, close after corresponding installation on mandrel 1
One end of capping 12 is provided with the limited step 13 of radial protrusion, and the inward flange of rear sealing cover 12 is located at limited step 13 and is arranged
Between the inner ring of the bearing 9 of the corresponding end of inner ring, annular groove 14, rear sealing cover 12 are provided in the corresponding end surface of belt pulley 2
Outer edge be located in annular groove 14.Axial force when be assembled on the shaft end of corresponding transmission shaft by belt pulley, makes
Sealing cover is clamped after obtaining.And it be located in the structure type of annular groove by outer edge, so that rear sealing cover is capable of forming
The effect of labyrinth sealing, greatly improves sealing performance.
In some more specifical embodiments, connection type between mandrel 1 and corresponding transmission shaft can be core
The shaft core position of axis 1 is provided with installation through-hole, can be fixed from installation through-hole by bolt 15 with the shaft end of corresponding transmission shaft
Connection.It is arranged so so that the connection between mandrel and corresponding transmission shaft is more convenient, in general, bolt 15 is preferably adopted
With the flange bolt of interior hexagonal, axial force, the both ends difference of mandrel damping sleeve are applied to the inner ring of bearing by the head of bolt
It offsets with the inner ring of the bearing of corresponding end, then enables to generate folder between the bearing inner race and limited step of rear sealing cover side
Clamp force, so that rear sealing cover be clamped.In addition, in order to avoid bolt head is affected by the external environment and corrodes, generally by preceding sealing
Lid 11 is press-fitted in the corresponding end for being arranged inner ring, and is covered on the outside of the head for being located at bolt 15.
In order to which those skilled in the art better understand the technical solution of the application, said below with reference to specific example
It is bright:
For example, the powered rotation belt train between engine 16 and generator 17, the belt pulley and generator of engine
On belt pulley connected by V-ribbed belt 18, the belt pulley of driven generator is rotated clockwise, to drive generator rotation hair
Electricity.
Since the mechanism of belt pulley is that mandrel 1 and belt pulley 2 pass through helical torsional spring 3 and connect, can occur between the two
Relatively rotate, thus when engine-driven belt pulley rotate clockwise and short-duration acceleration be greater than generator belt pulley
When, the revolving speed of mandrel 1 is lower than 2 revolving speed of belt pulley, the torsion that helical torsional spring 3 is transmitted by engine-driven belt pulley at this time
Square simultaneously rotates clockwise, 3 radial dilatation of helical torsional spring, when rotational speed difference away from it is excessive when, the outer ring of helical torsional spring 3 is encountered
Belt wheel damping sleeve 5 makes mandrel 1 and the same revolving speed of belt pulley 2, rotates with acceleration.
When engine-driven belt pulley rotates clockwise and short-duration acceleration is less than the belt pulley of generator, core
The revolving speed of axis 1 is higher than 2 revolving speed of belt pulley, the torque and up time that helical torsional spring 3 is transmitted by engine-driven belt pulley
Needle rotation, 3 radial contraction of helical torsional spring, shrinkage is bigger, and spring rate is bigger.When rotational speed difference away from it is excessive when, spiral torsional
Turn 3 inner ring of spring and encounter mandrel damping sleeve 4, makes mandrel 1 and the same revolving speed of belt pulley 2, rotated with acceleration.
It is anxious to add/urgency decelerating mode since there are the fluctuations of speed for engine-driven belt pulley in practical application, so
When anxious plus/anxious deceleration, generator amature can bear the fluctuation of speed impact of such operating condition.It is different so as to cause entire disc-coupled vibration
Often.For generator, Generator Vibration is excessive, and long-play will lead to generator damage；For train, V-ribbed belt is different
Often bounce leads to V-ribbed belt, abnormal, job-hopping of skidding, and long-play leads to V-ribbed belt rapid wear, and What is more, V-ribbed belt
It is broken in a short time.
Using damper pulley provided by the invention, spiral torsional suddenly plus in/urgency decelerating mode can be passed through in driving belt pulley
Turn the radial dilatation of spring 3 and radial contraction effectively reduces the impact that revolving speed unevenly brings train, generator, makes to generate electricity
Machine, V-ribbed belt, tensioning wheel vibration reduce, and run smoothly, the operation is stable.
Damper pulley provided by the present invention is described in detail above.It should be noted that in this specification
Various embodiments are described in a progressive manner, the highlights of each of the examples are it is different from other embodiments it
Place, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, such as the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element
Or there is also other identical elements in equipment.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand the core idea of the present invention.It should be pointed out that for those skilled in the art,
Without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention, these improvement and modification
It falls into the protection scope of the claims in the present invention.
Claims (10)
1. a kind of damper pulley, including pulley body, which is characterized in that the pulley body includes mandrel (1) and set
It is located on the mandrel (1) and can be around the belt pulley (2) of the axis rotation of the mandrel (1), the mandrel (1) and the skin
Being arranged to be formed between inner ring of belt wheel (2) is arranged gap；It is also arranged with helical torsional spring (3) on the mandrel (1), it is described
Helical torsional spring (3) is arranged in gap described in being located at, and one end and the mandrel (1) of the helical torsional spring (3) are fixed
Connection, the other end of the helical torsional spring (3) are fixedly connected with the belt pulley (2), and when the belt pulley (2) are opposite
When the mandrel (1) rotates, radial dilatation can occur for the helical torsional spring (3) to the set in described be arranged in gap
If inner ring or radial contraction are to the mandrel (1).
2. damper pulley as described in claim 1, which is characterized in that correspondence is arranged the spiral torsional on the mandrel (1)
The position fixing sleeve for turning spring (3) is equipped with mandrel damping sleeve (4), and described be arranged on inner ring corresponds to the helical torsional spring (3)
Position be fixedly embedded at belt wheel damping sleeve (5).
3. damper pulley as claimed in claim 2, which is characterized in that be further fixedly arranged on the mandrel damping sleeve (4)
Fixed block (6), the corresponding one end connecting with the mandrel (1) of the helical torsional spring (3) are fixed on the fixed block (6)
On.
4. damper pulley as claimed in claim 2, which is characterized in that the end of the belt wheel damping sleeve (5) is additionally provided with
Notch (7), described be arranged on inner ring are provided with the compatible boss (8) with the notch (7).
5. damper pulley as claimed in claim 4, which is characterized in that the quantity of the notch (7) is multiple, and described
Belt wheel damping sleeve (5) are arranged circumferentially.
6. damper pulley as described in claim 1, which is characterized in that the mandrel (1) and described be arranged between inner ring are led to
Cross bearing (9) connection, the inner ring of the bearing (9) is fixedly connected with the mandrel (1), the outer ring of the bearing (9) with it is described
It is arranged inner ring to be fixedly connected, and the quantity of the bearing (9) is two, the helical torsional spring (3) is located at two axis
It holds between (9).
7. damper pulley as claimed in claim 6, which is characterized in that two bearings (9) are far from the screw twisted
The side of spring (3) is also provided with limit stop ring (10), and the outer edge of the limit stop ring (10) is embedded in described be arranged
On circle.
8. such as damper pulley of any of claims 1-7, which is characterized in that the both ends difference for being arranged inner ring
It is provided with preceding sealing cover (11) and rear sealing cover (12).
9. damper pulley as claimed in claim 8, which is characterized in that sealing cover (12) is set in the mandrel after described
(1) on, one end of sealing cover (12) is provided with the limited step (13) of radial protrusion, institute after corresponding installation on the mandrel (1)
The inward flange for stating rear sealing cover (12) is located at the bearing (9) of the limited step (13) Yu the corresponding end for being arranged inner ring
Inner ring between, be provided with annular groove (14) in the corresponding end surface of the belt pulley (2), it is described after sealing cover (12) outside
Edge be located in the annular groove (14).
10. damper pulley as claimed in claim 8, which is characterized in that the shaft core position of the mandrel (1) is provided with installation
Through-hole can be fixedly connected by bolt (15) with the shaft end of corresponding transmission shaft, the preceding sealing cover from the installation through-hole
(11) it is press-fitted in the corresponding end for being arranged inner ring, and covers on the outside of the head for being located at the bolt (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561407.6A CN109538733B (en) | 2018-12-20 | 2018-12-20 | Vibration reduction belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561407.6A CN109538733B (en) | 2018-12-20 | 2018-12-20 | Vibration reduction belt pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538733A true CN109538733A (en) | 2019-03-29 |
| CN109538733B CN109538733B (en) | 2021-03-16 |
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ID=65855998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811561407.6A Active CN109538733B (en) | 2018-12-20 | 2018-12-20 | Vibration reduction belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538733B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114174697A (en) * | 2019-06-20 | 2022-03-11 | 盖茨公司 | Tensioner |
| CN115076294A (en) * | 2022-06-15 | 2022-09-20 | 莱顿汽车部件（苏州）有限公司 | Damper wheel for rotating body and automobile |
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| CN114174697B (en) * | 2019-06-20 | 2024-03-26 | 盖茨公司 | Tensioner |
| CN115076294A (en) * | 2022-06-15 | 2022-09-20 | 莱顿汽车部件（苏州）有限公司 | Damper wheel for rotating body and automobile |
| CN115076294B (en) * | 2022-06-15 | 2024-05-28 | 莱顿汽车部件（苏州）有限公司 | Vibration damping wheel for rotating body and automobile |
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