CN104455098A - Method for reducing braking noise of motor vehicle and noise reducing device using same - Google Patents
Method for reducing braking noise of motor vehicle and noise reducing device using same Download PDFInfo
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- CN104455098A CN104455098A CN201410647620.4A CN201410647620A CN104455098A CN 104455098 A CN104455098 A CN 104455098A CN 201410647620 A CN201410647620 A CN 201410647620A CN 104455098 A CN104455098 A CN 104455098A
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Abstract
The invention provides a motor vehicle braking noise reducing device and a method for reducing braking noise of a motor vehicle in regard to the defect that the requirement for the matching technology of a noise reducing piece in the structure of the prior art and an automobile braking lining is high. The noise reducing device comprises a noise reducing piece. Small holes are formed in the noise reducing piece. In the noise reducing process, the noise reducing piece is arranged between a braking piston and a braking lining piece, the small holes are formed in the mode of facing the braking lining piece, the noise reducing piece is fixedly connected with the braking lining piece, damping and inherent feature frequency of the automobile braking lining piece are changed by changing the distribution positions, the pore size and the number of the small holes, the freqnency of the braking lining piece is prevented from overlapping with the inherent frequency of a braking disc, and therefore the braking noise is reduced. By the adoption of the noise reducing device of the structure and the noise reducing method for reducing the noise of the motor vehicle, the noise reducing piece is simple in structure, the requirement for the matching technology of the noise reducing piece and the automobile braking lining piece is low, and the noise reducing effect is good.
Description
Technical field
The present invention relates to and a kind ofly reduce the method for automobile braking noise and silencer used.
Background technique
In automobile brake lining plate field, in order to solve the problem of automobile brake lining plate at braking process generation noise, generally all can at the riveted joint of the back side of automobile brake lining plate and/or bonding one deck bloop.Traditional bloop is metallic composite, usually by layer of metal cold-reduced sheet as substrate, sulfuration process is passed through at the upper surface one of the cold rolling base board of metal, be attached with one deck rubber layer, one deck viscose glue is adhered to again above the rubber layer of wherein, the shape that bloop sheet material goes out to need by metal cool-press technique stamping-out, combines riveted joint by viscose glue or is bonded in the back side of automobile brake lining plate.By changing bloop rubber layer thickness, using the thickness of different rubber materials and the cold rolling base board of adjustment metal, change automobile brake lining plate damping characteristic and eigen frequency, reach the object reducing automobile brake noise.At present, by changing bloop bondline thickness, material and metal Cold Rolled Plate Thickness, the method improving the automobile brake noise of different size still by Europe, the United States, day producer use in a large number, by the bloop specifications and models that himself is abundant, establish the noise reduction experimental data base of all size model bloop for specific brake lining eigen frequency.They have accumulated rich experience in noise reduction and noise matching technique.For different automobile brake lining plate structures and eigen frequency, select the bloop of the different trade mark to improve the noise of automobile brake lining plate targetedly.And Current Domestic automobile brake lining plate bloop manufacturing firm has just risen, the specifications and models of the automobile bloop produced are more single, and single bloop product specification can not solve miscellaneous automobile brake noise problem.Domestic manufacturer in this technical field not strong competitive capacity, causes the automobile brake lining plate of domestic top grade can only select the product of Europe, the United States, Japanese automobile brake lining bloop producer, improves our automobile brake noise at short notice.The technology barriers that Foreign Automobile brake lining bloop manufacturer causes in this field to China, hinder the development of China's automobile brake lining plate bloop industry.In addition, existing bloop changes the damping of automobile brake lining plate and eigen frequency by the adjustment rubber layer thickness of bloop and the thickness of metal cold-reduced sheet, the corresponding different rubber layer of automobile brake lining plate of often kind of specification and the thickness of cold-reduced sheet, so cause brake lining specification many, do not have a large amount of laboratory datas to be difficult to obtain the bloop of excellent noise reduction effect, bring great obstruction to the supply of bloop.
Summary of the invention
The object of the invention is to require high deficiency for the bloop of prior art structure and automobile brake lining plate matching technique, a kind of automobile braking liner silencer of new structure is provided, this silencer not only structure is simple, and require low to the matching technique of bloop and automobile brake lining plate, those of ordinary skill just can adjust bloop according to the actual demand of client through simple training, reaches predetermined noise reduction.
Another object of the present invention needs the bloop of plurality of specifications to mate the automobile braking liner of different size for prior art Motor Vehicle sound-deadening and noise-reducing method, make bloop specification many, need a large amount of laboratory datas to carry out the deficiency supported, a kind of method of the reduction automobile braking noise that bloop and automobile braking liner specification can be made easily to mate is provided.
For achieving the above object, following technological scheme is adopted to solve technical problem of the present invention:
Reduce a silencer for automobile braking noise, comprise bloop, described bloop is provided with aperture;
Described aperture is through hole, arranges cover plate on the surface at one of bloop;
Described aperture is blind hole;
Damping grease is filled in aperture;
Described bloop is by the composite board having flexible sheet metal and rubber layer and be composited;
The described flexible sheet metal that has is the cold rolling base board of metal, and described rubber layer is high temperature resistant, resistance to braking fluid, impact-resistant nitrile butadiene rubber;
The thickness of described bloop is 0.6-1mm;
The center of circle of the aperture of described bloop on same circumference f, each aperture of described bloop with the center of circle of circumference f for symmetric points are symmetrical;
A kind of method reducing automobile braking noise, adopt aforesaid silencer, described bloop is arranged between brake piston and brake lining, aperture is arranged towards brake lining, bloop is fixedly connected with brake lining, by changing the distributing position of aperture, pore size and quantity change damping and the inherent feature frequency of automobile brake lining plate, prevent skidding liner overlapping with the natural frequency of brake disc, thus reduction brake noise, when adjusting aperture and the quantity of aperture, follow following rule: when the decibel value of brake noise is higher, the quantity of aperture 7 is more, little pore size distribution is more intensive, the frequency of brake noise is larger, and small aperture is larger, the abundance in hole is more.
When the center of circle of each aperture is positioned at same circumference f, circumference f overlaps with the radius center line e of brake piston and arranges.
Adopt the silencer of the reduction automobile braking noise of structure of the present invention, bloop is provided with aperture, by adjusting damping and the eigen frequency of the size and number adjustment automobile brake lining plate of aperture, the specification of the bloop of the aperture being provided with varying number and size and motor-driven brake lining is made to carry out adaptation, thus reduce the brake noise of automobile braking liner, and the thickness of bloop is relatively fixing, so only need the bloop of corresponding a kind of specification for the automobile braking liner of different size, damping and the eigen frequency of automobile braking liner just can be changed by adjusting little hole number on the bloop of this specification and size, therefore bloop, automobile braking liner specification is few, easy coupling, what those of ordinary skill just can complete automobile braking liner and bloop through simple training mates work.
Method of the present invention is adopted to carry out sound-deadening and noise-reducing to automobile braking liner, the noise decibel value that only need send according to brake lining and frequency noise adjust quantity and the aperture of aperture, so, automobile braking liner for plurality of specifications only needs a kind of bloop of specification to mate, so make the specification of bloop few, the adaptation that average skilled worker just can complete bloop and vehicle brake-holder block by simple training adjusts.
Adopt the inventive method without the need to changing the rubber layer thickness of the cold rolling base board of bloop metal and surface attachment, only need adjust shape and the distribution of aperture, by changing the damping characteristic of automobile brake lining plate and changing the eigen frequency of automobile brake lining plate, the effect reducing automobile brake noise can be reached equally.
Accompanying drawing explanation
Fig. 1 is that the present invention reduces automobile braking noise silencer example structure schematic diagram;
Fig. 2 is the A direction view of Fig. 1;
Fig. 3 is bloop example structure schematic diagram of the present invention;
Fig. 4 is silencer using state example structure schematic diagram of the present invention;
Fig. 5 is the plan view of Fig. 4.
Fig. 6 is that the present invention reduces another example structure of automobile braking noise silencer and using state schematic diagram;
Fig. 7 is that the present invention reduces another example structure schematic diagram of automobile braking noise silencer.
Description of reference numerals
1-brake piston 2-cover plate 3-bloop 4-brake lining backboard 5-brake lining friction material 6-damping grease 7-aperture 8-rubber layer 9-sheet-metal layers 10-viscose glue.
Embodiment
Silencer of the present invention can be widely used in the place that the noise reduction of automobile braking liner, motor car engine, generator etc. produce noise, carries out noise reduction and damping to motor car engine etc.
Below for automobile brake lining plate silencer and reduce automobile brake noise method the invention will be further described:
As shown in Fig. 1 and Fig. 2 and Fig. 7, the automobile brake lining plate silencer of the present embodiment structure, comprises bloop 3, and bloop 3 arranges at least two apertures 7.Aperture 7 can be through hole, also can be blind hole.As shown in Figure 1, preferred aperture 7 is through hole, and a surface of bloop arranges cover plate 2.Aperture 7 on bloop 3 is designed to blind hole, or the surface when aperture is through hole at bloop arranges cover plate 2, can change the damping characteristic of brake lining.
Preferably in aperture 7, fill damping grease 6.
Preferred aperture 7 is at least 4, and the center of circle of each aperture 7 is positioned at same circumference f.As shown in Figure 2, each aperture 7 can be uniformly distributed, and as shown in Figure 6, each aperture also can non-uniform Distribution, when each aperture non-uniform Distribution, the aperture of non-uniform Distribution with the center of circle o of circumference f for symmetric points are symmetrical arranged.
No matter aperture 7 is through hole or blind hole, and upper and lower two surfaces of bloop 3 are all smooth, are beneficial to and fit tightly with the faying surface of brake lining backboard 4 and brake piston 1.
Bloop material and structure can adopt material and the structure of prior art bloop.
As shown in Figure 3, preferred bloop is metallic composite, total thickness is 0.6-1.0mm, it is by having flexible sheet-metal layers 9 and rubber layer 8 is composited, sheet metal preferable alloy cold-reduced sheet substrate, its thickness is 0.4-0.5mm, and rubber layer 8 is high temperature resistant, resistance to braking fluid, impact-resistant nitrile butadiene rubber class preferably.Rubber layer 8 can be arranged on a surface of sheet-metal layers 9, also can be arranged on two surfaces of sheet-metal layers 9.Rubber layer 8 is all set on two surfaces of sheet-metal layers 9 and can plays better erasure effect.
As shown in Figure 4 and Figure 5, when using this silencer, silencer is arranged between brake piston 1 and brake lining backboard 4, when bloop is blind hole, the foraminate surface that arranges of bloop 3 is called surface one and arranges towards brake lining backboard 4.On the surface one of bloop 3, viscose glue 10 is set, the surface one of bloop 3 is fixedly connected on brake lining backboard 4, the position arranging aperture 7 of bloop is positioned at immediately below brake piston 1 effectively contacts with bloop 3, riveted joint can be adopted to be fixedly connected with by bloop brake lining backboard 4 in conjunction with bonding mode, directly bonding mode also can be adopted to be fixedly connected with brake lining backboard 4 by bloop 3.When aperture 7 is through hole, cover plate 2 is set on the surface two of bloop 3.Cover plate 2 is positioned at brake piston side, bloop is positioned at brake liner plate side.The mating shapes of preferred cover plate 2 and bloop 3.Brake lining friction material 5 is positioned at the other end of brake lining backboard 4.
In order to strengthen erasure effect, in aperture, inject damping grease 6.
Aperture 7 is arranged to blind hole or on the bloop 3 being provided with logical aperture 7, arranges cover plate 2 both to have played the effect changing damping, also can prevent the damping grease 6 injected in aperture 7 from overflowing when injecting damping grease 6 in aperture.In addition, cover plate is set on the surface two of the bloop arranging logical aperture 7, cover plate can with aperture 7 in be provided with the bloop acting in conjunction of damping grease, play the effect strengthening viscous damping.
When rubber layer 8 is bondd with brake lining, uniform high pressure need be applied to rubber layer and brake lining, thus silencer is bonded in brake lining.
When carrying out noise reduction to automobile braking liner, adopt following principle: the noise of brake lining is larger, the quantity of aperture is also more, the diameter of aperture is larger, namely passes through the quantity of change bloop, pore size and arrangement mode, changes the damping capacity of vibration damping sheet, thus change the inherent feature frequency of automobile brake lining plate, effectively avoid when skidding, brake lining is overlapping with the natural frequency of brake disc, reduces brake noise.
When carrying out noise reduction to brake lining, the aperture of bloop is positioned at immediately below brake piston, make aperture just to the end face of brake piston, noise reduction can be improved like this, on the circumference e that the center line that preferably center of circle of each aperture is positioned at the annular radii of brake piston is formed, such erasure effect is best.For the brake lining of different size, adopt following principle to realize noise reduction: when the decibel value of brake noise is higher, the quantity of aperture 7 is more, and little pore size distribution is more intensive; The frequency of brake noise is larger, and small aperture is larger, the abundance in hole is more.
The processing of aperture is very simple, disposable by hole and the direct impact briquetting of external form when vibration damping sheet impact briquetting.
The shape of aperture can be the arbitrary shapes such as circular, square, rhombus.The circumference of each little pore size distribution and adjusting depending on the size of brake noise and frequency at distributing position circumferentially, but follow a unified principle, be exactly, each aperture is preferably uniformly distributed, if some aperture right and wrong is equally distributed, then this aperture must be arranged in pairs, and with the center of circle of brake piston for symmetric points are symmetrical, as shown in Figure 6.The circle of the center of circle formation of each aperture, its diameter equals 1/2nd of external diameter and internal diameter sum.
Preferably, cover plate is stainless steel, and thickness between 0.3-0.5mm, and through Overheating Treatment, makes its surface have enough hardness and enough elasticity, and preferred cover plate and automobile brake lining plate backboard are fixed by snap fit and be connected.The hardness of cover plate is preferably greater than and equals HV220, and preferred tensile strength sigma b is for being more than or equal to 750MPa.
Table 1 is the hole diameter of different size brake lining bloop used, quantity and the brake piston size table of comparisons
Table 2 is the application example of the bloop of the different hole count of hippocampus M3 automobile front brake liner, according to the result that SAEJ2521 standard is tested at noise test platform.As can be seen from the table, use with a bloop, increase hole count and effectively can improve brake noise, evaluate when 8 holes are uniform and add up to 9.1 points, reach the usage requirement that main frame is supporting.
Claims (10)
1. reduce a silencer for automobile braking noise, comprise bloop (3), it is characterized in that, described bloop (3) is provided with aperture (7).
2. the silencer reducing automobile braking noise as claimed in claim 1, it is characterized in that, described aperture (7) is through hole, arranges cover plate (2) on the surface at one of bloop.
3. the silencer reducing automobile braking noise as claimed in claim 1, it is characterized in that, described aperture (7) is blind hole.
4. the silencer reducing automobile braking noise as claimed in claim 1, is characterized in that, in aperture (7), fill damping grease (6).
5. the as claimed in claim 1 silencer reducing automobile braking noise, is characterized in that, described bloop is by the composite board having flexible sheet metal and rubber layer and be composited.
6. the silencer reducing automobile braking noise as claimed in claim 5, it is characterized in that, the described flexible sheet metal that has is the cold rolling base board of metal, and described rubber layer is high temperature resistant, resistance to braking fluid, impact-resistant nitrile butadiene rubber.
7. the silencer of the reduction automobile braking noise as described in one of as every in claim 1-3, it is characterized in that, the thickness of described bloop is 0.6-1mm.
8. the silencer of the reduction automobile braking noise as described in one of as every in claim 1-3, is characterized in that, the center of circle of the aperture of described bloop on same circumference f, each aperture of described bloop with the center of circle of circumference f for symmetric points are symmetrical.
9. one kind is reduced the method for automobile braking noise, it is characterized in that, adopt one of the every described silencer of claim 1-8, described bloop is arranged between brake piston and brake lining, aperture (7) is arranged towards brake lining, bloop (3) is fixedly connected with brake lining, by changing the distributing position of aperture, pore size and quantity change damping and the inherent feature frequency of automobile brake lining plate, prevent skidding liner overlapping with the natural frequency of brake disc, thus reduction brake noise, when adjusting aperture and the quantity of aperture, follow following rule: when the decibel value of brake noise is higher, the quantity of aperture (7) is more, little pore size distribution is more intensive, the frequency of brake noise is larger, and small aperture is larger, the abundance in hole is more.
10. a kind of method reducing automobile braking noise as claimed in claim 9, is characterized in that, when the center of circle of each aperture is positioned at same circumference f, circumference f overlaps with the radius center line e of brake piston and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647620.4A CN104455098A (en) | 2014-11-14 | 2014-11-14 | Method for reducing braking noise of motor vehicle and noise reducing device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410647620.4A CN104455098A (en) | 2014-11-14 | 2014-11-14 | Method for reducing braking noise of motor vehicle and noise reducing device using same |
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| Publication Number | Publication Date |
|---|---|
| CN104455098A true CN104455098A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410647620.4A Pending CN104455098A (en) | 2014-11-14 | 2014-11-14 | Method for reducing braking noise of motor vehicle and noise reducing device using same |
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| CN (1) | CN104455098A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812833A (en) * | 2017-02-27 | 2017-06-09 | 江苏恒力制动器制造有限公司 | A kind of disc type noise reduction brake lining |
| CN110131340A (en) * | 2019-05-17 | 2019-08-16 | 杨福旺 | Disc brake apparatus suitable for new-energy automobile |
| CN111412231A (en) * | 2020-03-26 | 2020-07-14 | 东风汽车集团有限公司 | Anti-rotation structure of electronic parking caliper piston |
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| DE4142196C1 (en) * | 1991-12-20 | 1993-04-08 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Brake shoe for partly lined disc brake - has sliding intermediate plate, contg. lubricant and open toward piston side only |
| US5975252A (en) * | 1997-05-16 | 1999-11-02 | Tokico, Ltd. | Disk brake |
| CN101718317A (en) * | 2009-12-28 | 2010-06-02 | 万向钱潮股份有限公司 | Compound damping layer vibration attenuation piece for noise reduction of disc type brake |
| CN103016575A (en) * | 2011-09-19 | 2013-04-03 | R·阿贝斯曼 | Brake shim having lubricant compartment |
| WO2014180597A1 (en) * | 2013-05-08 | 2014-11-13 | Federal-Mogul Friction Products Gmbh | Damper plate for a disc brake pad |
| CN204267564U (en) * | 2014-11-14 | 2015-04-15 | 洪建栋 | A kind of bloop reducing automobile braking noise |
-
2014
- 2014-11-14 CN CN201410647620.4A patent/CN104455098A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142196C1 (en) * | 1991-12-20 | 1993-04-08 | Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De | Brake shoe for partly lined disc brake - has sliding intermediate plate, contg. lubricant and open toward piston side only |
| US5975252A (en) * | 1997-05-16 | 1999-11-02 | Tokico, Ltd. | Disk brake |
| CN101718317A (en) * | 2009-12-28 | 2010-06-02 | 万向钱潮股份有限公司 | Compound damping layer vibration attenuation piece for noise reduction of disc type brake |
| CN103016575A (en) * | 2011-09-19 | 2013-04-03 | R·阿贝斯曼 | Brake shim having lubricant compartment |
| WO2014180597A1 (en) * | 2013-05-08 | 2014-11-13 | Federal-Mogul Friction Products Gmbh | Damper plate for a disc brake pad |
| CN204267564U (en) * | 2014-11-14 | 2015-04-15 | 洪建栋 | A kind of bloop reducing automobile braking noise |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812833A (en) * | 2017-02-27 | 2017-06-09 | 江苏恒力制动器制造有限公司 | A kind of disc type noise reduction brake lining |
| CN110131340A (en) * | 2019-05-17 | 2019-08-16 | 杨福旺 | Disc brake apparatus suitable for new-energy automobile |
| CN111412231A (en) * | 2020-03-26 | 2020-07-14 | 东风汽车集团有限公司 | Anti-rotation structure of electronic parking caliper piston |
| CN111412231B (en) * | 2020-03-26 | 2021-08-06 | 东风汽车集团有限公司 | Anti-rotation structure of electronic parking caliper piston |
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Application publication date: 20150325 |
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