CN102927186B - Damped part - Google Patents
Damped part Download PDFInfo
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- CN102927186B CN102927186B CN201210459406.7A CN201210459406A CN102927186B CN 102927186 B CN102927186 B CN 102927186B CN 201210459406 A CN201210459406 A CN 201210459406A CN 102927186 B CN102927186 B CN 102927186B
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- Prior art keywords
- mold insert
- parts
- main body
- damped
- layer
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- 238000013016 damping Methods 0.000 claims abstract description 36
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- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 5
- 229920001732 Lignosulfonate Polymers 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 229910052615 phyllosilicate Inorganic materials 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
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- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 2
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- -1 steinheilite Chemical compound 0.000 claims description 2
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Vibration Prevention Devices (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
Comprise parts and the friction damping device of the main body with metal, this friction damping device comprises localized contact but the rubbing surface be not bonded together, or this friction damping device comprises the layer with at least one in particle and fiber, this layer has the thickness that scope is about 1 μm to about 400 μm.
Description
The application is the divisional application that the name submitted on July 21st, 2008 is called the Chinese patent application 200810215476.1 of " damped part ".
Technical field
The field that the application relates generally to comprises the parts providing frictional damping.
Background technique
The parts bearing vibration can produce unnecessary or unwanted vibration.Similarly, parts or component with undesirable frequency and/or amplitude running, and continue the long period.Such as, such as brake rotors, support, pulley, brake drum, case of transmission, gear and other parts can produce the noise in the compartment passing to vehicle.In order to reduce the generation of noise and prevent from being passed to compartment, employ various technology, be included in layered panels engine components using polymer coating, sound-absorbing grid and there is viscoelastic layer.In parts or component, unwanted vibration can occur in other various products, include but not limited to, the manufacturing equipment of sports apparatus, household electric appliance, such as lathe, milling/grinding/drilling hole machine tool, earth-moving equipment, other non-automatic application and bear the component of dynamic load and vibration.These components manufacture by comprising the various modes such as casting, machine tooling, forging, die casting.
Summary of the invention
One embodiment of the present of invention provide the parts comprising the main body with metal, and friction damping device, this friction damping device comprises localized contact but the rubbing surface be not bonded together, or this friction damping device comprises the layer of at least one had in particle and fiber, it is about 1 μm to about 400 μm that this layer has thickness range.
Other exemplary embodiments of the present invention become obvious by from detailed description hereafter.Be appreciated that in exemplary embodiment disclosed by the invention, detailed description and specific embodiment are only bright for institute, and do not limit scope of the present invention.
Accompanying drawing explanation
Exemplary embodiments of the present invention will be more fully understood from detailed description and accompanying drawing, wherein:
Fig. 1 illustrates product according to an embodiment of the invention;
Fig. 2 illustrates product according to an embodiment of the invention;
Fig. 3 be comprise one embodiment of the present of invention of mold insert, by part remove after sectional view;
Fig. 4 be the rubbing surface at two intervals comprising cast metal body part, one embodiment of the present of invention, by part remove after sectional view;
Fig. 5 be comprise have for provide one embodiment of the present of invention of the mold insert of the layer of the rubbing surface of damping, by part remove after sectional view;
Fig. 6 be one embodiment of the present of invention, by part remove after sectional view;
Fig. 7 is the enlarged view of one embodiment of the present of invention;
Fig. 8 be one embodiment of the present of invention, by part remove after sectional view;
Fig. 9 be one embodiment of the present of invention, by part remove after amplification view;
Figure 10 be one embodiment of the present of invention, by part remove after amplification view;
Figure 11 be one embodiment of the present of invention, by part remove after amplification view;
Figure 12 illustrates one embodiment of the present of invention;
Figure 13 be one embodiment of the present of invention, by part remove after sectional view;
Figure 14 be one embodiment of the present of invention, by part remove after sectional view;
Figure 15 be illustrate one embodiment of the present of invention, by part remove after planimetric map;
Figure 16 illustrates one embodiment of the present of invention, sectional view along the line 16-16 of Figure 15;
Figure 17 be illustrate one embodiment of the present of invention, by part remove after sectional view;
Figure 18 be illustrate the embodiment that the present invention is other, by part remove after sectional view;
Figure 19 illustrates product according to an embodiment of the invention;
Figure 20 A is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of time;
Figure 20 B is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of time;
Figure 20 C is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of time;
Figure 20 D is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of time;
Figure 20 E is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of time;
Figure 20 F is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of time;
Figure 21 A is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of frequency;
Figure 21 B is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of frequency;
Figure 21 C is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of frequency;
Figure 21 D is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of frequency;
Figure 21 E is that the sonic wave amplitude of according to an embodiment of the invention, rotor is to the figure of frequency.
Embodiment
Below to embodiment explanation be in fact exemplary, and be not used in restriction the invention, its application, or uses.
With reference to Fig. 1, provide mold insert 10 according to one embodiment of present invention.Mold insert 10 can provide damping in parts are as automobile component.In various embodiments, mold insert 10 can have various geometrical construction.In one embodiment, mold insert 10 can have the annular solid 12 comprising inward flange 14 and outward edge 16.The parts comprising mold insert 10 can be made of a variety of materials, and include but not limited at least one in cast iron, steel, aluminium, titanium or other metal/non-metal (pottery) material.The parts comprising mold insert 10 can comprise any parts that can bear vibration/dynamic loading, such as, brake rotors, support, pulley, brake drum, gear box casing, gear, motor field frame, axle, bearing, motor, bat, lathe, milling machine, drilling machine or grinding machine is included but not limited to.
In one embodiment, mold insert 10 can comprise at least one fin 18, this fin from the inward flange 14 of annular solid 12 and outward edge 16 at least one stretch out.In FIG, the fin 18 stretched out from inward flange 14 illustrates with hacures.In one embodiment, mold insert 10 can have coating thereon.In another embodiment, annular solid 12 can have coating, but fin 18 can not have coating.In one embodiment, this mold insert can not have coating.
According to one embodiment of present invention, mold insert 10 can be included in the annular stiffening rib 20 in annular solid 12.Comprise in the process of the parts of mold insert 10 in manufacture, fin 18 can allow mold insert 10 firmly to fix in a mold, thus produces this parts.Two parts of mold can apply pressure on the fins 18.Mold insert 10 can have enough hardness to be integrally loaded in this mould.Annular stiffening rib 20 can be approximately equidistant with inward flange 14 and outward edge 16.In another embodiment, mold insert 10 can comprise multiple radial strengthening rib 22, and this radial strengthening rib can extend to the outward edge 24 of fin 18 from the inward flange 14 of annular solid 12.
With reference to Fig. 2, in one embodiment, at least one fin 18 described can comprise crooked fin portion 30.Crooked fin portion 30 can perpendicular to the remaining part of fin 18, or this crooked fin portion 30 can become any suitable angle relative to the remaining part of fin 18.When using vertical mold, crooked fin portion 30 can be used for the part place before the mould is closed mold insert 10 being remained on sand mo(u)ld.In casting on flat technique, if needed, fin 18 can be straight or bending.The quantity of fin 18 can change as required.
In a further embodiment, annular solid 12 can comprise multiple embedding piece groove (not shown).Embedding piece groove can be any shape, such as oval, circular, square, rectangular or triangle.This embedding piece groove can allow mold insert 10 in moulding process, become segmentation, and every section can be supported by fin 18 and the movement preventing it too much.Therefore, during casting technique, this embedding piece groove can prevent the gross distortion of mold insert 10.
With reference to Fig. 3-18, one embodiment of the present of invention comprise the product or parts 500 with friction damping device.This friction damping device can with in numerous applications, includes but not limited to need to reduce the noise relevant to vibration member, or need reduction being hit, dynamic loading, to be excited or the amplitude of parts that moves and/or the application of endurance of shaking.In one embodiment, this friction damping device can comprise the surface of contact border contributing to rubbing to suppress the parts vibrated.In one embodiment, this damping device can comprise structure and be set to move relative to each other and the rubbing surface 502 of rubbing contact, so that the vibration of these parts that dissipated by the frictional damping produced by surface 502 fricting movement relative to each other.
According to various exemplary embodiment of the present invention, frictional damping is obtained by the motion relative to each other of rubbing surface 502.Rubbing surface 502 motion relative to each other can comprise: the surface motion relative to each other of the main body 506 of these parts; The motion on the surface of the relative mold insert 504 in surface of the main body 506 of these parts; The surface of the main body 506 of these parts is relative to the motion of layer 520; The surface of mold insert 504 is relative to the motion of layer 520; The surperficial relative particle 514 of the main body 506 of these parts or the motion of fiber; The surperficial relative particle 514 of mold insert 504 or the motion of fiber; Or, the fricting movement of the relative to each other or relatively residual jointing material of particle 514 or fiber.
Surface one of in main body 506 or mold insert 10 or layer 520 is arranged in the embodiment of rubbing surface 502, rubbing surface 502 can have the Minimum Area that rubbing contact can occur, this region can extend the minimum range of 0.1mm in a first direction, and/or in the upper minimum range extending 0.1mm of second direction (being generally horizontal direction).In one embodiment, mold insert 10 can be circumferential body, and the frictional contact area of rubbing surface 502 can extend the distance of about 20mm to about 1000mm on circumferential direction, and extends the distance of about 10mm to about 75mm in a lateral direction.Rubbing surface 502 may be provided in various embodiment, such as, as shown in Fig. 3-18.
Referring again to Fig. 3, in an alternative embodiment of the invention, the surface 526,528 of one or more outer surface 522,524 of mold insert 10 or the main body 506 of parts 500 can comprise the surface of relative coarseness, this rough surface comprises multiple peak portion 510 and valley 512, thus strengthens the frictional damping of these parts.In one embodiment, the described surface of mold insert 10 or main body 506 can by sand blast, spray glass bead, water jets impact, chemical corrosion, machine tooling or similar technique.
As shown in Figure 4, in one embodiment, rubbing surface 502(such as extends from an A-B) can be positioned to such as to extend from a C-D with the second rubbing surface 502(of main body 506) first surface of the main body 506 of parts 500 that adjoins.Main body 506 can be included in channel-shaped structure 508 that wherein formed, relative narrowness, thus at least two rubbing surfaces 502 defining described channel-shaped structure 508 can be engaged with each other, for fricting movement in the process of this component vibration, thus provide the frictional damping of parts 500.In various embodiments of the invention, channel-shaped structure 508 can carry out machining to be formed by foundry goods, or casts mold insert by use sacrificial and formed, and this sacrificial casting mold insert can after casting by such as etching or machining and removing.In one embodiment, sacrificial mold insert can tolerate the temperature of molten metal in casting process, and easier than cast metal processed.Each rubbing surface 502 can have multiple peak portion 510 and multiple valley 512.The degree of depth as the valley 512 shown in line V can change according to embodiment.In various embodiments, the scope of the mean value of the degree of depth V of valley 512 can be about 1 μm-300 μm, 50 μm-260 μm, the change of 100 μm-160 μm or these scopes.But, for the whole circumstances, in component working, there is the localized contact between relative rubbing surface 502, to produce frictional damping.
In another embodiment of the invention, described damping device or rubbing surface 502 can be provided by the particle 514 at least one face of mold insert 10 or on the surface of the main body 506 of parts 500 or fiber.As shown in figure 12, particle 514 can have irregular (such as rough) shape, thus strengthens frictional damping.One embodiment of the present of invention can comprise layer 520, this layer comprises particle 514 or fiber, because particle 514 or the intrinsic adhesion characteristic of fiber, therefore they can be bonded to each other, or be adhered on the surface of main body 506 of these parts, or be adhered on the surface of mold insert 10.Such as, the adhesion characteristic of particle 514 or fiber can make particle 514 or fiber can be bonded to each other under compression or be adhered on the surface of main body 506 or mold insert 10.In another embodiment of the invention, particle 514 or fiber can be treated to has coating thereon, or connect function group thereon, thus by this particle adherence together, maybe by this particle adherence to the surface of the surface of main body 506 and mold insert 10 at least one on.In another embodiment of the invention, particle 514 or fiber can be embedded at least one of the main body 506 of these parts and mold insert 10, thus provide rubbing surface 502(Fig. 7-8).
Be shaped such that in the embodiment that mold insert 10 and/or particle 514 or fiber are exposed at the temperature of melted material in such as casting at least partially at parts 500, mold insert 10 and/or particle 514 or fiber can by preventing from the fabrication process flowing or the material of opposing heavy corrosion be made.Such as, mold insert 10 and/or particle 514 or fiber can comprise refractory material, this material can higher than 1100 F, higher than 2400 F or the temperature higher than 2700 F under anti-flowing, or can not seriously to corrode.When the melted material of such as metal is around mold insert 10 and/or particle 514 during casting, mold insert 10 or particle 514 should not be got wet by this melted material, thus needing the position of the rubbing surface 502 that frictional damping is provided, this molten metal can not be adhered on mold insert 10 or layer 520.
Suitable particle 514 or the exemplary embodiment of fiber include but not limited to; particle or fiber, this particle or fiber comprise silica, aluminium oxide, clay graphite, silicon carbide, silicon nitride, steinheilite (magnesium-iron-aluminosilicate), mullite (aluminosilicate), zirconium oxide (Zirconium oxide), phyllosilicate or other high-temperature resistant particles.In one embodiment of the invention, particle 514 has along the direction of its longest dimension the length that scope is approximately 1 μm-350 μm or 10 μm-250 μm.
The technique of the relatively-high temperature relevant with melted material can not be afforded in the embodiment making parts 500 employing wherein mold insert 10 and/or particle 514 or fiber, mold insert 10 and/or particle 514 or fiber can be made up of various other materials, this material include but not limited to non-infusibility polymer material, pottery, composite material, timber or other be applicable to producing the material of frictional dampings.Such as, as shown in Figure 6, when two parts of the main body 506 of parts 500 are mechanically kept together by locking mechanism, fixed block, tackiness agent or weldment 518, non-like this refractory material (as the additional of refractory material or substitute) can also be used.
In another embodiment of the invention, layer 520 can be the coating in the main body 506 or mold insert 10 of these parts.This coating can comprise many particles 514, and this particle 514 is by inorganic or organic bond 516(Fig. 5,6,11) or other jointing materials be bonded to each other, and/or on the described surface of main body 506 being adhered to these parts or mold insert 10.The embodiment of suitable tackiness agent includes but not limited to epoxy resin, phosphoric acid tackiness agent, calcium aluminate, sodium silicate, wood powder or clay.In another embodiment of the invention, particle 514 keeps together by inorganic bond, and/or is adhered on main body 506 or mold insert 10.In one embodiment, this coating can be used as silicic acid aluminium base, the liquid dispersed mixture of organic infusibility mixture is deposited in mold insert 10 or main body 506.
In another embodiment, this coating can comprise and lignosulfonate tackiness agent, cristobalite (SiO
2), the aluminium oxide of quartz or Calcium Lignosulphonate 99.99 min mixing and at least one of silica particles.This Calcium Lignosulphonate 99.99 min can be used as tackiness agent.In one embodiment, this coating can comprise IronKote.In one embodiment, liquid coating can be deposited in a part for this mold insert, and can comprise high temperature LadleKote310B.In another embodiment, this coating can comprise clay, Al
2o
3, SiO
2, at least one in graphite and clay mixture, silicon carbide, silicon nitride, steinheilite (magnesium-iron-aluminosilicate), mullite (aluminosilicate), zirconium oxide (zirconium oxide) and phyllosilicate.In one embodiment, this coating can comprise fiber, such as pottery or mineral fibre.
When there is the layer 520 comprising particle 514 or fiber on mold insert 10 or article body 506, thickness L(Fig. 5 of layer 520, particle 514 and/or fiber) can change.In various embodiments, the scope of the thickness L of layer 520, particle 514 and/or fiber is the change of about 1 μm-400 μm, 10 μm-400 μm, 30 μm-300 μm, 30 μm-40 μm, 40 μm-100 μm, 100 μm-120 μm, 120 μm-200 μm, 200 μm-300 μm, 200 μm-250 μm or these scopes.
In another embodiment of the invention, particle 514 or fiber temporarily keep together by all or part of sacrificial coating, and/or remain on the described surface of mold insert 10.When around mold insert 10 or thereon cast metal, sacrificial coating can be melted metal consumption or burn up.Particle 514 or fiber are captured and stay between the main body 506 of this foundry goods and mold insert 10, thus provide by particle 514 or fibrous or substantially by particle 514 or fibrous layer 520.
The whole of mold insert 10 or only, layer 520 can be set on part.In one embodiment of the invention, mold insert 10 can comprise fin 534(Fig. 5).Such as, mold insert 10 can comprise circumferential body portion and from this circumferential body portion radially-inwardly or outwardly directed fin 534.In one embodiment of the invention, at least one surface 536 that can get wet of fin 534 do not comprise layer 520 containing particle 514 or fiber or, on fin 534, setting example is as got wet the material of graphite, thus on the surface 536 this cast metal being adhered to can get wet, so that mold insert 10 is connected in the main body 506 of parts 500, but still allow to produce frictional damping on the surface at all the other mold inserts do not bonded with this foundry goods.
In one embodiment of the invention, being processed at least partially of mold insert 10, or the characteristic of mold insert 10 makes until the solidifying of molten metal, and molten metal is not also got wet or is adhered in this part of mold insert 10.According to one embodiment of present invention, at least one in the main body 506 of these parts and mold insert 10 comprises metal, such as but not limited to aluminium, steel, stainless steel, cast iron, other various alloys, or comprises the metal-base composites of abrasive particle.In one embodiment of the invention, it is such as the material of metal that mold insert 10 can comprise, its have than cast around its part, fusing point that the fusing point of molten metal is higher.
In one embodiment, mold insert 10 can have the minimum length of the minimum average thickness of 0.2mm and/or the minimum width of 0.1mm and/or 0.1mm.In a further embodiment, mold insert 504 can have the minimum length of the minimum average thickness of 0.2mm and/or the minimum width of 2mm and/or 5mm.In other embodiments, mold insert 10 can have scope is about 0.1-20mm, 0.1-6.0mm or 1.0-2.5mm or the thickness of scope between it.
Referring now to Fig. 9-11, rubbing surface 502 can have again multiple peak portion 510 and multiple valley 512.With shown in line V, the degree of depth of valley 512 can change according to embodiment.In various embodiments, the mean value of the degree of depth V of valley 512 can be the change of about 1 μm-300 μm, 50 μm-260 μm, 100 μm-160 μm or these scopes.But, for the whole circumstances, at the duration of work of parts, between main body 506 and mold insert 10, there is localized contact, make frictional damping occurs.
In other embodiments of the invention, to the improvement of the frictional damping thickness (L as shown in Figure 5) by regulating course 520, or by regulating the relative relative position of rubbing surface 502 or the mean depth (such as, as shown in Figure 4) of valley 512 to reach.
In one embodiment, mold insert 10 is not preloaded or is in pre-tensioner time or is kept in position by tension force.In one embodiment, mold insert 10 is not spring.The other embodiment of the present invention comprises the technique of casting the material comprising metal around mold insert 10, and its restrictive condition is, rubbing surface 502 part being used to provide the mold insert of frictional damping is not caught by the core being arranged in this casting mould or encased.In various embodiments, mold insert 10 or layer 520 comprise at least one rubbing surface 502, or the rubbing surface 502 that two that are surrounded completely by the main body 506 of these parts relative.In another embodiment, the layer 520 comprising particle 514 or fiber can be surrounded completely by the main body 506 of these parts, or is surrounded completely by main body 506 and mold insert 10, and at least one wherein in main body 506 and mold insert 10 comprises metal or be substantially made up of metal.In one embodiment of the invention, layer 520 and/or mold insert 10 do not comprise or are not carbon paper or cloth.
Referring again to Fig. 3-6, in various embodiments of the invention, mold insert 10 can comprise first surface 522 and the second relative face 524, and the main body 506 of these parts can comprise the first inner face 526, this first inner face adjoins the first surface 522 of mold insert 10 and is configured to it complementary, nominally such as parallel with it.The main body 506 of these parts comprises the second inner face 528, and this second inner face adjoins the second face 524 of mold insert 10 and is configured to it complementary, such as in parallel.Main body 506 can comprise first outside 530, this to be configured to and it is complementary, such as in parallel outside first on the first surface 522 of mold insert 10.Main body 506 can comprise first outside 532, this to be configured to and it is complementary, such as in parallel outside first on the second face 524 of mold insert 10.But in other embodiments of the present invention, the outside 530,532 of main body 506 does not form complementation with the respective face 522,524 of mold insert 10.When that formed during damping device is by the main body 506 at parts 500, narrow groove structure 508 is to provide, groove structure 508 partly can be limited by the first inner face 526 and the second inner face 528, and described surface construction is complimentary to one another, such as, be parallel to each other.In other embodiments, surface 526 and 528, surface 526 and 522 or surface 528 and 524 are fitting surface but are not parallel to each other.
With reference to Figure 13-14, in one embodiment of the invention, mold insert 10 can be inlay, and its first surface 522 be can't help the main body 506 of these parts and surrounded.Mold insert 10 can comprise reclinate tang or fin 534 as shown in figure 13.In one embodiment of the invention, the surface 536 that can get wet can be provided as the layer 520 not comprising and have particle 514 or fiber, or there is got wet the material of such as graphite on fin 534, thus on the surface 536 cast metal being adhered to can get wet, thus be connected in the main body of these parts by mold insert 10, but still allow the frictional damping on non-adhering surface.The layer 520 comprising particle 514 or fiber can be positioned at be not used in the mold insert 10 becoming crooked fin 534 second this part of face 524 below.
In another embodiment of the invention, mold insert 10 comprises shaping fin 534(Figure 14 by the portion first face 522 of machining mold insert 10).Fin 534 can comprise the surface 536 that can get wet, and it has the cast metal bonded on it, thus is connected in the main body of these parts by mold insert 10, but still allows by non-adhering surface and realize frictional damping.The layer 520 comprising particle 514 or fiber can be positioned at the entirety in the second face 524 or the below of its part.In other embodiments of the invention, the all surfaces comprising fin 534 can be non-getting wet, such as, by arranging the mode of coating 520 thereon, and the structure in main body 506, such as but not limited to shoulder 537, for mold insert 10 being remained on appropriate location.
Referring now to Figure 15, one embodiment of the present of invention can comprise the parts 500 of the mold insert 10 having main body 506 and surrounded by main body 506.Mold insert 10 can be included in the through hole wherein formed, thus pile body or cylinder 540 are extended in mold insert 10 or through mold insert 10.
With reference to Figure 16, it is the sectional view of the 16-16 along the line of Figure 15, in one embodiment of the invention, mold insert 10 at least partially on there is the layer 520 comprising many particles 514 or fiber (not shown), thus provide rubbing surface 502, and prevent cast metal from bonding thereon.The mold insert 10 comprising layer 520 can be arranged in casting mould, and molten metal can pour into casting mould, and coagulation forming is to form the cylinder 540 extending through mold insert 10.The internal surface 542 limiting the through hole of mold insert 10 can not have layer 520 or it can comprise the material that can get wet, thus cylinder 540 is adhered on mold insert 10.Alternatively, in a further embodiment, cylinder 504 is not adhered on mold insert 10 at internal surface 542 place.Mold insert 10 can comprise feature, and such as but not limited to shoulder 505, and/or cylinder 540 can comprise feature, such as but not limited to shoulder 537, for this mold insert is remained on appropriate location.
Referring now to Figure 17, in another embodiment, mold insert can be the inlay in the foundry goods comprising main body 506, and can comprise the cylinder 540 extending in mold insert 10 or pass mold insert 10.This mold insert 10 can be adhered on cylinder 540, thus this mold insert is remained on appropriate location, and still allows frictional damping.In one embodiment of the invention, mold insert 10 can comprise the recess limited by the internal surface 542 of mold insert 10, and cylinder 540 may extend into mold insert 10, but not through mold insert 10.In one embodiment, cylinder 540 can not at internal surface 542 place bonding mold insert 10.Mold insert 10 can comprise feature, such as but not limited to shoulder 505, and/or cylinder 540 can comprise feature, such as but not limited to shoulder 537, be used for this mold insert to remain on appropriate location.
Referring now to Figure 18, in another embodiment of the invention, mold insert 10 or basic unit can be arranged on the outer surface 530 of main body 506.Can have between mold insert 10 and outer surface 530 or not there is layer 520.Mold insert 10 can be constructed and arranged to have the through hole formed through it or the recess be formed at wherein, so that cast metal may extend into or pass mold insert 10 to form cylinder 540, thus this mold insert is remained on appropriate location, and still allows frictional damping.As required, cylinder 540 can bond and maybe can not be adhered to mold insert 10.If needed, cylinder 540 can extend through mold insert 10, and connects the other part of main body 506.
In various embodiments, the mold insert 10 or do not have with layer 520 or coating can be included in any suitable components 500, thus provides frictional damping to reduce or eliminate vibration, such as noise.The parts 500 with mold insert 10 can with any suitable method manufacture.In one embodiment, as the embodiment of suitable parts 500, mold insert 10 is encased in such as rotor assembly 32(Figure 19) automobile component in.Rotor assembly 32 can comprise hub portion 34, ring part 36 and mold insert 10.Ring part 36 can comprise the first brake pad unilateral 38 and the second brake pad unilateral 40.Mold insert 10 can be arranged between the first brake pad unilateral 38 and the second brake pad unilateral 40.In various embodiments, rotor assembly 32 can be ventilation or nonventilated.
Comprise the parts of mold insert 10, such as, comprise the rotor assembly 32 of mold insert 10, available many modes manufacture.Such as, in one embodiment, this mold insert can be arranged in the seam groove of rotor.In a further embodiment, between the two half-unit that mold insert 10 can be encapsulated in this rotor is divided.In a further embodiment, this mold insert can be arranged in pipeline or other locking devices, and molten metal can be cast around this pipeline, thus forms rotor assembly 32.In a further embodiment, this rotor can be cast around mold insert 10.Casting technique can be vertical or level.In vertical casting technique, mold insert 10 can use automatic set device to be arranged on sand mo(u)ld, and/or uses core assembly mould to arrange.Fin 18 can be used for mold insert 10 to arrange and be stably fixed in this mould, and for keeping the stability of this mold insert in casting technique.In casting on flat technique, mold insert 10 can be arranged in the Lower Half of sand mo(u)ld.
With reference to Figure 20 A-F, the rotor for multiple structure determines that it is by the scope of the sound dampening after hammer.Use single brake rotors prototype and suitable mold insert, design improvement and measurement are carried out for multiple different structure, this design improvement comprise not there is mold insert solid rotor, not there is the slotted rotor of mold insert and there is the slotted rotor of mold insert, also comprise the delta value of change.Delta is the width of described groove and the thickness nominal mean difference dimensionally of described mold insert.Delta is average measurement value, this is because for the surface of this mold insert and main body, there are some localized contact, they form each delta value determined between this mold insert and main body.Figure 20 A is the figure of acoustic amplitudes relative to the time of the solid rotor without mold insert.Figure 20 B is the figure of acoustic amplitudes relative to the time of the slotted rotor without mold insert.Figure 20 C has acoustic amplitudes without the slotted rotor of coating mold insert relative to the figure of time, and wherein delta is 50 μm.Figure 20 D has acoustic amplitudes without the slotted rotor of coating mold insert relative to the figure of time, and wherein delta is 100 μm.Figure 20 E has acoustic amplitudes without the slotted rotor of coating mold insert relative to the figure of time, and wherein delta is 160 μm.Figure 20 F has acoustic amplitudes without the slotted rotor of coating mold insert relative to the figure of time, and wherein delta is 260 μm.Be appreciated that from these figure delta be 100 μm or 160 μm can improve sound dampening without coating mold insert.
With reference to Figure 21 A-E, the rotor for multiple structure determines that it is by the scope of the sound dampening after hammer.Identical rotor geometry is used for each design of Figure 21 A-E with identical mold insert geometrical construction, and the coating thickness wherein on this mold insert can regulate according to instruction below.Shown coating thickness is average measurement value.Figure 21 A illustrates the figure of acoustic amplitudes relative to frequency of the solid rotor without mold insert.Figure 21 B shows the acoustic amplitudes that comprises without the rotor of coating mold insert relative to the figure of frequency.Little insertion square frame in Figure 21 B shows described parts and the section without coating mold insert.Figure 21 C shows the figure of acoustic amplitudes relative to frequency of the rotor comprising the mold insert with 40 μm of thick coatings.Little insertion square frame in Figure 21 C shows the section of mold insert and the described parts with 40 μm of thick coatings.With reference to Figure 21 D, it illustrates the figure of acoustic amplitudes relative to frequency of the rotor comprising the mold insert with 120 μm of thick coatings.Little insertion square frame in Figure 21 D shows the section of mold insert and the described parts with 120 μm of thick coatings.With reference to Figure 21 E, it illustrates the figure of acoustic amplitudes relative to frequency of the rotor comprising the mold insert with 250 μm of thick coatings.Little insertion square frame in Figure 21 E shows the section of mold insert and the described parts with 250 μm of thick coatings.The impact of noise damping is more obvious in the high-frequency range relevant with singing.As seen from these figure, the mold insert with 250 μm of thick coatings demonstrates the sound dampening of improvement at still higher frequencies.
Shown in other test result table 1 below.Table 1 illustrates the characteristic of the frictional damping of various mold insert.Delta is the width of described groove and the thickness nominal mean difference dimensionally of described mold insert.
Table 1
About in the test of table 1, use the cated mold insert of not tool, make this mold insert can weld (or bonding) on the cast part of these parts.Mold insert is being placed in seam groove and delta is approximately the test of 0 μm, mold insert does not weld (or bonding) on the remaining part of these parts.
Here used term " ... on ", " be positioned at ... top ", " being arranged on ... top ", " ... under ", " be positioned at ... below " or " to be arranged on ... below " for illustration of first layer or the parts relative position relative to the second layer or parts; this illustrates that first layer or parts are located immediately on the second layer or parts; or directly contact with the second layer or parts, or extra layer or parts can be inserted between first layer or parts and the second layer or parts.
The above-mentioned explanation for embodiment of the present invention is only example in itself, and therefore its distortion is considered to not deviate from the spirit and scope of the present invention.
Claims (15)
1. a damped part, it comprises:
Parts and friction damping device, these parts comprise the main body with metal, described friction damping device comprises the mold insert in the groove that is contained in and is formed in described main body, the scope of the nominal mean difference between the size of the width of described groove and the thickness of described mold insert is 100-160 μm, at least one in particle and fiber forms layer on the surface on the internal surface of the groove of described main body or at least one of described mold insert, or embed at least one of the main body of described parts and described mold insert, thus provide between described main body and described mold insert and move relative to each other and the rubbing surface of rubbing contact, described layer has the thickness range of 200 μm-250 μm.
2. damped part according to claim 1, is characterized in that, described mold insert comprises annular solid.
3. damped part according to claim 1, is characterized in that, described mold insert comprises at least one in aluminium, steel, cast iron.
4. damped part according to claim 1, is characterized in that, described rubbing surface comprises the surface of described mold insert and the surface of described main body.
5. damped part according to claim 1, is characterized in that, described rubbing surface comprises multiple peak portion and valley, and wherein the mean depth scope of this valley is average 1-300 μm.
6. damped part according to claim 1, is characterized in that, described rubbing surface comprises multiple peak portion and valley, and wherein the mean depth scope of this valley is average 100-160 μm.
7. damped part according to claim 1, is characterized in that, described layer comprises at least one in silica, aluminium oxide, clay graphite, silicon carbide, silicon nitride, steinheilite, mullite, zirconium oxide, phyllosilicate.
8. damped part according to claim 1, is characterized in that, described layer comprises at least one in epoxy resin, calcium aluminate, sodium silicate, wood powder and clay.
9. damped part according to claim 1, is characterized in that, described layer comprises at least one in aluminium oxide, lignosulfonate tackiness agent and quartz.
10. damped part according to claim 9, is characterized in that, described lignosulfonate tackiness agent comprises lignosulfonate calcium binders.
11. damped parts according to claim 1, is characterized in that, described fiber comprises at least one in ceramic fiber and mineral fibre.
12. damped parts according to claim 1, it is characterized in that, described parts comprise one of them of brake rotors, support, pulley, brake drum, case of transmission, gear, motor field frame, axle, bearing, motor, bat, lathe, milling machine, drilling machine and grinding machine.
13. damped parts according to claim 1, is characterized in that, described parts comprise and have the rotor that the first brake pad is unilateral and the second brake pad is unilateral, and be placed on unilateral and the second brake pad of this first brake pad unilateral between mold insert.
14. damped parts according to claim 1, is characterized in that, the dimensional range of the particle in described layer is 1 μm to 400 μm.
15. damped parts according to claim 1, is characterized in that, described layer can bear the temperature being greater than 2400 F.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US95090407P | 2007-07-20 | 2007-07-20 | |
| US60/950904 | 2007-07-20 | ||
| CN200810215476A CN101520077A (en) | 2007-07-20 | 2008-07-21 | Damping component |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810215476A Division CN101520077A (en) | 2007-07-20 | 2008-07-21 | Damping component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102927186A CN102927186A (en) | 2013-02-13 |
| CN102927186B true CN102927186B (en) | 2016-04-13 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810215476A Pending CN101520077A (en) | 2007-07-20 | 2008-07-21 | Damping component |
| CN201210459406.7A Expired - Fee Related CN102927186B (en) | 2007-07-20 | 2008-07-21 | Damped part |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810215476A Pending CN101520077A (en) | 2007-07-20 | 2008-07-21 | Damping component |
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| CN (2) | CN101520077A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130256143A1 (en) * | 2012-03-30 | 2013-10-03 | GM Global Technology Operations LLC | Anodized inserts for coulomb damping or frictional damping |
| CN103453063B (en) * | 2012-12-03 | 2015-04-22 | 上海理工大学 | Nested collision damper |
| US9771994B2 (en) * | 2015-11-06 | 2017-09-26 | Schaeffler Technologies AG & Co. KG | Wet friction materials including cristobalite as filler material |
| DE102016104509B3 (en) * | 2016-03-11 | 2017-08-03 | Ks Gleitlager Gmbh | Metal / plastic sliding bearing composite material and slide bearing element produced therefrom |
| DE102017208529A1 (en) * | 2017-05-19 | 2018-11-22 | Continental Teves Ag & Co. Ohg | Brake disc with a friction ring made of PMMC material |
| CN108443325B (en) * | 2018-04-02 | 2019-06-11 | 江苏理工学院 | Crash dampers for high-speed rotating machinery |
| DE102019207292A1 (en) * | 2019-05-18 | 2020-11-19 | Robert Bosch Gmbh | Friction brake body for a friction brake of a motor vehicle, friction brake and method for producing a friction brake body |
| CN111894379A (en) * | 2020-07-28 | 2020-11-06 | 上海恩井汽车科技有限公司 | Damper for tail gate driving system, tail gate driving system and automobile |
| CN112252884B (en) * | 2020-10-12 | 2025-09-02 | 上海恩井汽车科技有限公司 | Damper for tailgate drive system, tailgate drive system and automobile |
| CN114101753B (en) * | 2021-12-15 | 2023-09-05 | 唐山市三川钢铁机械制造有限公司 | A horizontal deep hole drilling machine based on particle damping and vibration reduction and its damping and vibration reduction design method |
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| US3494884A (en) * | 1964-05-27 | 1970-02-10 | Jurid Werke Gmbh | Friction lining compositions |
| US5143184A (en) * | 1991-02-14 | 1992-09-01 | Allied-Signal Inc. | Carbon composite brake disc with positive vibration damping |
| US5562745A (en) * | 1994-03-16 | 1996-10-08 | Minnesota Mining And Manufacturing Company | Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles |
| US5819882A (en) * | 1996-04-02 | 1998-10-13 | Alliedsignal Inc. | Multi-disc brake actuator for vibration damping |
| US5878843A (en) * | 1997-09-24 | 1999-03-09 | Hayes Lemmerz International, Inc. | Laminated brake rotor |
| CN101090226A (en) * | 2006-05-05 | 2007-12-19 | 张玉宝 | Reluctance motor and self-control optical coupled switch and motion control, structure damp and radiating method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7937819B2 (en) * | 2005-09-19 | 2011-05-10 | GM Global Technology Operations LLC | Method of manufacturing a friction damped disc brake rotor |
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2008
- 2008-07-21 CN CN200810215476A patent/CN101520077A/en active Pending
- 2008-07-21 CN CN201210459406.7A patent/CN102927186B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| US3494884A (en) * | 1964-05-27 | 1970-02-10 | Jurid Werke Gmbh | Friction lining compositions |
| US5143184A (en) * | 1991-02-14 | 1992-09-01 | Allied-Signal Inc. | Carbon composite brake disc with positive vibration damping |
| US5562745A (en) * | 1994-03-16 | 1996-10-08 | Minnesota Mining And Manufacturing Company | Abrasive articles, methods of making abrasive articles, and methods of using abrasive articles |
| US5819882A (en) * | 1996-04-02 | 1998-10-13 | Alliedsignal Inc. | Multi-disc brake actuator for vibration damping |
| US5878843A (en) * | 1997-09-24 | 1999-03-09 | Hayes Lemmerz International, Inc. | Laminated brake rotor |
| CN101090226A (en) * | 2006-05-05 | 2007-12-19 | 张玉宝 | Reluctance motor and self-control optical coupled switch and motion control, structure damp and radiating method |
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| Publication number | Publication date |
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| CN101520077A (en) | 2009-09-02 |
| CN102927186A (en) | 2013-02-13 |
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