CN204692520U - A kind of crank pulley of twisting and warping combined vibration-damping - Google Patents
A kind of crank pulley of twisting and warping combined vibration-damping Download PDFInfo
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- CN204692520U CN204692520U CN201520261893.5U CN201520261893U CN204692520U CN 204692520 U CN204692520 U CN 204692520U CN 201520261893 U CN201520261893 U CN 201520261893U CN 204692520 U CN204692520 U CN 204692520U
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- wheel hub
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- crank pulley
- wheel
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Abstract
The utility model discloses a kind of crank pulley of twisting and warping combined vibration-damping, comprise torsional vibration silicon oil damper and the flexure vibrations rubber shock absorber be made up of elastic element, inertial mass of wheel hub, cover plate, flying wheel, bearing composition.Hub centre is provided with center hole and cylindrical is provided with belt grooves, and center hole is connected with engine crankshaft front end, and belt grooves drives the operate accessories of motor by serpentine belt drive.One end face of wheel hub is provided with annular groove, and annular groove and cover plate form ring-type Seal cage, be provided with flying wheel and be filled with silicone oil in Seal cage, and flying wheel is positioned the inner round wall of Seal cage also can relatively rotate by bearing; Wheel hub other end is bonding with elastic element, and another opposing side of elastic element is bonding with inertial mass.Simple, the required installing space of the utility model structure is little, low cost of manufacture, easy to use, simultaneously, torsion and the flexure vibrations of car engine arbor system can be improved, there is good damping effect in tool crank pulley function.
Description
Technical field
The utility model relates to vibration damper field, specifically a kind of twist and warping combined vibration-damping crank pulley.
Background technique
The crank pulley of motor is for driving it as water pump, generator, the work of the annexes such as air conditioning pump.And in engine working process, bent axle must have periodically variable tangential force and normal force effect, make Crankshaft system can produce torsional vibration and flexure vibrations simultaneously, directly affect the Security of internal-combustion engine, working efficiency and environment.The common methods reducing Twist Vibration System of Engine Crankshaft installs torshional vibration damper at crankshaft front end, and especially on High speed and heavy duty diesel engine, extensively adopt silicon oil damper, the situation that bent axle is damaged because of torsional oscillation is less be there occurs.Show from the statistics damaged crankshaft of diesel engine at present, 60-80% is caused by flexure vibrations, and the main source of the flexure vibrations of bent axle complete machine oscillation and noise especially.Along with motor high-power demand and automobile relevant laws and regulations are more and more strict, people require more and more higher to the travelling comfort of automobile seat, the research of the noise of regarding Car motor, vibration and run smoothness (NVH) is more and more subject to people's attention, and exploitation can become market active demand by the torsional oscillation vibration damping twist and warping combined vibration-damping crank pulley that tool bends the cost performance of vibration damping high again.
Model utility content
The purpose of this utility model is to provide a kind of crank pulley of twisting and warping combined vibration-damping that a kind of structure is simple, functional by force, cost performance is high, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A kind of crank pulley of twisting and warping combined vibration-damping, comprise wheel hub 1, cover plate 6, flying wheel 4, bearing 7, elastic component 3 and inertial mass 2, wheel hub 1 is provided with belt grooves and center hole 8, one end face of described wheel hub 1 is provided with circular groove, and described circular groove and cover plate 6 form Seal cage 5; Flying wheel 4 is provided with in Seal cage 5, be provided with bearing 7 in described flying wheel 4, described bearing 7 matches with circular groove inner cylinder, and flying wheel 4 can relatively rotate with wheel hub 1, be filled with fluid silicone oil in the space formed between described Seal cage 5 and flying wheel 4, form torsional vibration silicon oil damper.
The other end of described wheel hub 1 is bonding with elastic element, and another opposing side of elastic element is bonding with inertial mass, forms flexure vibrations rubber shock absorber.
The center hole 8 of described wheel hub 1 is connected with engine crankshaft front end, connects expire in engine crankshaft front end by silicon oil damper-rubber shock absorber.
The belt grooves that cylindrical on described wheel hub 1 is provided with will drag the so preposition attachment mechanism work of the water pump of motor, air compressor by V-belt.
As further program of the utility model: silicon oil damper-rubber shock absorber is in the engine crankshaft belt pulley of one.
As further program of the utility model: described crank pulley has twist and warping vibration-damping function while having motor bowed pastern.
Compared with prior art, the beneficial effects of the utility model are;
In engine working process, under periodically variable force and moment effect, bent axle can produce torsional vibration and flexure vibrations.Now connected firmly by wheel hub and move together with crankshaft system at the silicon oil damper of crankshaft front end.When crankshaft system generation torsional oscillation, because the flying wheel rotary inertia in silicon oil damper is larger, its motion always lags behind the rotation of wheel hub, namely flying wheel and wheel hub produce relative rotation, now in gap, the viscous damping of silicone oil will consume vibrational energy, thus reaches the object weakening crankshaft system torsional vibration; And connect firmly by wheel hub the interior molecules that in crankshaft front end rubber damping is with device inertial mass will make flexure vibrations be converted into elastic element rubber and rub, the vibration namely on bowed pastern bending direction is by rub distributing of heat and being cut down.
On wheel hub, rubber shock absorber, silicon oil damper and belt pulley function i ntegration are combined with each other, and can guarantee that installing space is minimum, again reduce cost of production.
The utility model structure is simple, have good damping effect, and cost performance is high, easy to use, can meet the user demand in market.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-wheel hub, 2-inertial mass, 3-elastic element, 4-flying wheel, 5-Seal cage, 6-cover plate, 7-bearing, 8-center hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of crank pulley of twisting and warping combined vibration-damping, comprises wheel hub 1, flying wheel 4, cover plate 6, bearing 7, elastic component 3 and inertial mass 2.One end face of described wheel hub 1 is provided with circular groove, and described circular groove and cover plate 6 form Seal cage 5; Be provided with flying wheel 4 in Seal cage 5, be provided with bearing 7 in described flying wheel 4, described bearing 7 matches with circular groove inner cylinder, and flying wheel 4 can relatively rotate with wheel hub 1.The other end of described wheel hub 1 is bonding with elastic element 3, and another opposing side of elastic element 3 is bonding with inertial mass 2.Wheel hub 1 is provided with center hole 8, and center hole 8 is connected with engine crankshaft front end.Wheel hub 1 cylindrical is provided with belt grooves, and belt grooves drags the so preposition attachment mechanism work of the water pump of motor, air compressor by V-belt.
Wheel hub 1 and cover plate 6 form Seal cage 5, and flying wheel 4 is positioned on Seal cage 5 inner cylindrical surface by bearing 7, can relatively rotate with wheel hub 1, fill silicone oil in Seal cage 5.Move together with crankshaft system at crankshaft front end because wheel hub connects firmly, in engine working process, bent axle produces torsional vibration, because flying wheel rotary inertia is larger, its motion always lags behind the rotation of wheel hub, namely flying wheel and wheel hub produce relative rotation the silicone oil at shear gap place, and the viscous damping of silicone oil will consume vibrational energy, thus reaches the object weakening crankshaft system torsional vibration.
The other end of wheel hub 1 is bonding with elastic element 3, and another opposing side of elastic element 3 is bonding with inertial mass 2.Move together with crankshaft system at crankshaft front end because wheel hub connects firmly, in engine working process, bent axle produces flexure vibrations, because inertial mass rotary inertia is larger, its motion always lags behind the rotation of wheel hub, and namely inertial mass and wheel hub produce relative rotation shearing elasticity element, produces molecule friction in the inside of elastic element rubber, namely the vibration on bowed pastern bending direction by rub distributing of heat and being cut down, thus reaches the object weakening crankshaft system flexure vibrations.
The utility model structure is simple, on wheel hub integrated rubber vibration damper, silicon oil damper and belt pulley function in together with, have good damping effect, cost performance is high, and installing space is little, easy to use, and cost of production is low, meets the user demand in market.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (7)
1. twist and warp the crank pulley of combined vibration-damping for one kind, comprise wheel hub (1), flying wheel (4), cover plate (6), bearing (7) elastic component (3) and inertial mass (2), belt grooves is located on wheel hub (1) cylindrical; It is characterized in that, an end face of described wheel hub (1) is provided with circular groove, and described circular groove and cover plate (6) form Seal cage (5); Flying wheel (4) is provided with in Seal cage (5), bearing (7) is provided with in described flying wheel (4), described bearing (7) and circular groove inner cylinder match, flying wheel (4) can relatively rotate with wheel hub (1), the other end of described wheel hub (1) is bonding with elastic element (3), elastic element (3) another opposing side is bonding with inertial mass (2), wheel hub (1) is provided with center hole (8), and center hole (8) is connected with engine crankshaft front end.
2. one twist and warping combined vibration-damping crank pulley according to claim 1, it is characterized in that, described belt grooves is located on wheel hub (1) cylindrical, and wheel hub (1) is provided with center hole (8), and center hole (8) is connected with engine crankshaft front end.
3. one twist and warping combined vibration-damping crank pulley according to claim 1, it is characterized in that, be cast with fluid silicone oil in the space formed between described Seal cage (5) and flying wheel (4), flying wheel (4) is positioned the interior cylinder of the close groove of ring also can relatively rotate by bearing (7).
4. one twist and warping combined vibration-damping crank pulley according to claim 1, it is characterized in that, the silicon oil viscosity in the rotary inertia of described flying wheel (4), Seal cage (5), the gap between Seal cage (5) and flying wheel (4) meet the requirement of engine shaft system torsional vibration damper.
5. one twist and warping combined vibration-damping crank pulley according to claim 1, it is characterized in that, described elastic element (3) is annular rubber.
6. one twist and warping combined vibration-damping crank pulley according to claim 1, is characterized in that, described elastic element (3) adopts metal-rubber Bond and inertial mass (2), wheel hub (1) bonding.
7. one twist and warping combined vibration-damping crank pulley according to claim 1, it is characterized in that, the rigidity of described elastic element (3), the rotary inertia of inertial mass (2) meet the requirement of engine shaft system flexure vibrations vibration damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520261893.5U CN204692520U (en) | 2015-04-27 | 2015-04-27 | A kind of crank pulley of twisting and warping combined vibration-damping |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520261893.5U CN204692520U (en) | 2015-04-27 | 2015-04-27 | A kind of crank pulley of twisting and warping combined vibration-damping |
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| CN204692520U true CN204692520U (en) | 2015-10-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179592A (en) * | 2015-10-15 | 2015-12-23 | 广西玉柴机器股份有限公司 | Crankshaft damping device |
| CN106870622A (en) * | 2017-03-15 | 2017-06-20 | 上海工程技术大学 | A kind of magnetic rheology elastic body torsional vibration damper |
| CN108463648A (en) * | 2016-01-14 | 2018-08-28 | 标致雪铁龙汽车股份有限公司 | Device for transmitting movement and filtering |
| CN112709783A (en) * | 2019-10-25 | 2021-04-27 | 现代自动车株式会社 | Viscous damper for crankshaft of vehicle |
-
2015
- 2015-04-27 CN CN201520261893.5U patent/CN204692520U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179592A (en) * | 2015-10-15 | 2015-12-23 | 广西玉柴机器股份有限公司 | Crankshaft damping device |
| CN108463648A (en) * | 2016-01-14 | 2018-08-28 | 标致雪铁龙汽车股份有限公司 | Device for transmitting movement and filtering |
| CN106870622A (en) * | 2017-03-15 | 2017-06-20 | 上海工程技术大学 | A kind of magnetic rheology elastic body torsional vibration damper |
| CN106870622B (en) * | 2017-03-15 | 2019-09-06 | 上海工程技术大学 | A kind of magnetic rheology elastic body torsional vibration damper |
| CN112709783A (en) * | 2019-10-25 | 2021-04-27 | 现代自动车株式会社 | Viscous damper for crankshaft of vehicle |
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