CN215567510U

CN215567510U - Silencing sheet of brake

Info

Publication number: CN215567510U
Application number: CN202121059954.1U
Authority: CN
Inventors: 庄浩楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-01-18
Anticipated expiration: 2031-05-18

Abstract

The utility model provides a brake silencing sheet and relates to the technical field of brake systems. The brake silencing sheet comprises a silencing sheet body, wherein the silencing sheet body comprises a stainless steel plate layer, a silencing layer and an alloy plate layer which are sequentially overlapped. When installing the amortization piece on the stopper, this noise is transmitted on the amortization piece with sound vibration's form, then make the amortization layer take place deformation because of the effect of sound vibration energy, at this moment, produce shear stress and stress between the restriction layer (stainless steel sheet layer and alloy sheet layer) of amortization layer and its both sides, thereby dissipate more energy, reach the effect of damping, and then play better amortization effect, and the in-process further dissipation of other fractional energy outwards continuation transmission in the stainless steel sheet layer, thereby further play the effect of eliminating the noise, the practicality is stronger.

Description

Silencing sheet of brake

Technical Field

The utility model relates to the technical field of brake systems, in particular to a brake silencing sheet.

Background

With the improvement of living standard, the automobile has been used as a more common transportation tool. However, during the driving process of the automobile, great noise is often generated, such as whistling and braking noise, and the harmfulness of the noise to the human body is general and great. For example, when a person is exposed to an environment with a high noise frequency, the person may not only cause changes in the auditory system, but also other physiological changes of the body, and especially when the person is exposed to the environment for a long time, the person may also cause temporary or permanent hearing loss, and the health index is low. Because the noise generated by automobile braking also has a high contribution value, when people are in the noise environment for a long time, the influence on the hearing is serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a brake noise reduction sheet which can effectively block the transmission path of brake noise, thereby playing a better noise reduction role, achieving the effect of reducing noise pollution and having stronger practicability.

The embodiment of the utility model is realized by the following steps:

the utility model provides a stopper amortization piece, its includes the amortization piece body, and the amortization piece body is including stainless steel sheet layer, amortization layer and the alloy plate layer that superposes in proper order. Moreover, the brake noise-eliminating sheet can effectively block the transmission path of brake noise, thereby playing a better noise-eliminating role, achieving the effect of reducing noise pollution and having stronger practicability.

In some embodiments of the utility model, the stainless steel sheet layer has a thickness of 0.3mm to 0.5 mm.

In some embodiments of the utility model, the sound damping layer is a rubber layer.

In some embodiments of the utility model, the rubber layer has a thickness of 0.05mm to 0.12 mm.

In some embodiments of the utility model, the rubber layer has a hardness of 60 to 90 degrees.

In some embodiments of the utility model, the rubber layer is a nitrile rubber layer.

In some embodiments of the utility model, the alloy plate layer has a thickness of 0.2mm to 0.4 mm.

In some embodiments of the utility model, the alloy plate layer is a layer of SPCC-IB steel.

In some embodiments of the utility model, the sound-deadening sheet body further includes an adhesive layer, and the adhesive layer is disposed on a side of the alloy plate layer away from the sound-deadening layer.

In some embodiments of the present invention, the adhesive layer is a pressure sensitive adhesive layer.

The embodiment of the utility model at least has the following advantages or beneficial effects:

the utility model provides a brake noise damping sheet which comprises a noise damping sheet body, wherein the noise damping sheet body comprises a stainless steel plate layer, a noise damping layer and an alloy plate layer which are sequentially overlapped. When installing the amortization piece on the stopper, this noise is transmitted on the amortization piece with sound vibration's form, then make the amortization layer take place deformation because of the effect of sound vibration energy, at this moment, produce shear stress and stress between the restriction layer (stainless steel sheet layer and alloy sheet layer) of amortization layer and its both sides, thereby dissipate more energy, reach the effect of damping, and then play better amortization effect, and the in-process that remaining fractional energy outwards continues the transmission in the stainless steel sheet layer further dissipates, thereby further play the effect of eliminating the noise, the practicality is stronger. The silencing sheet provided by the utility model has the advantages that the stainless steel plate layer is selected as the constraint layer, so that the silencing sheet not only has more excellent physical properties such as high strength, high hardness, strong toughness and the like, but also has better acid-base corrosion resistance, high temperature resistance, oxidation resistance and the like, and thus, the silencing sheet provided by the utility model has better physical and chemical properties and stronger practicability. Specifically, the stainless steel plate layer of the silencing sheet of the brake has good scratch resistance, so that the damage of the brake to the stainless steel plate layer in the braking process is small, and the service life of the silencing sheet of the brake is long. Moreover, the brake noise damping sheet has strong corrosion resistance, high temperature resistance and oxidation resistance, so that the application range of the noise damping sheet can be effectively improved, for example, when the brake noise damping sheet is used for a working vehicle which is usually in an acidic or alkaline environment, the brake noise damping sheet has strong applicability, long service life and high cost performance. In addition, the stainless steel plate layer does not need to be coated or superposed with an additional corrosion-resistant layer or an additional oxidation-resistant layer, so that the cost is lower, and the cost performance is higher. In addition, the stainless steel plate layer has higher glossiness and stronger aesthetic property, can be favored by consumers, meets the requirements of the consumers and has better effect. Therefore, the brake silencing sheet provided by the utility model has the advantages of good performance, long service life, high performance-price ratio, good applicability and attractiveness, and high use value and practical value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a brake noise damping sheet according to an embodiment of the present invention.

Icon: 100-brake noise damping sheet; 110-stainless steel plate layer; 120-a rubber layer; 130-alloy plate layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "inner", "outer", etc. are used for indicating the orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships conventionally arranged when the products of the present invention are used, the terms are only used for facilitating the description of the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1, fig. 1 is a schematic structural diagram of a brake noise damping sheet 100 according to the present embodiment. The brake noise damping sheet 100 includes a noise damping sheet body, and the noise damping sheet body includes a stainless steel plate layer 110, a noise damping layer, and an alloy plate layer 130, which are sequentially stacked. The brake noise reduction sheet 100 can effectively block the transmission path of brake noise, thereby playing a good noise reduction role and achieving the effect of reducing the brake noise.

Specifically, in the present embodiment, the noise damping sheet main body includes a stainless steel plate layer 110, a noise damping layer, and an alloy plate layer 130, which are sequentially stacked. When the noise-canceling plate is mounted on a back plate of a brake, the brake generates noise due to friction braking, and the noise is generally classified into three types, i.e., brake chatter (low frequency noise), squeak (medium and high frequency noise), and howling (high frequency noise), according to noise frequency. When the silencing piece is installed on the brake, the noise is transmitted to the silencing piece in the form of sound vibration, then the silencing layer is deformed due to the effect of sound vibration energy, at the moment, shearing stress and stress are generated between the silencing layer and constraint layers (the stainless steel plate layer 110 and the alloy plate layer 130) on two sides of the silencing layer, so that more energy is dissipated, the damping effect is achieved, a better silencing effect is achieved, and the residual small part of energy is further dissipated in the process of outwards continuing transmission in the stainless steel plate layer 110, so that the effect of eliminating the noise is further achieved, and the practicability is high.

In this embodiment, the stainless steel plate layer 110 is selected as the constraint layer of the silencing layer, which not only has more excellent physical properties, such as high strength, high hardness, strong toughness, etc., but also has better acid-base corrosion resistance, high temperature resistance, oxidation resistance, etc., so that the silencing sheet provided by the utility model has better physicochemical properties and stronger practicability. Specifically, the stainless steel plate layer 110 of the brake noise damping patch 100 has good scratch resistance, so that the brake caliper has less damage to the layer during braking, and the service life of the brake noise damping patch 100 is long. Moreover, the brake noise damping sheet 100 has strong corrosion resistance, high temperature resistance and oxidation resistance, so that the application range of the noise damping sheet can be effectively improved, for example, when the brake noise damping sheet 100 is used for a working vehicle which is usually in an acidic or alkaline environment, the brake noise damping sheet has strong applicability, long service life and high cost performance. In addition, the stainless steel plate layer 110 does not need to be coated or superposed with an additional corrosion-resistant layer or an additional oxidation-resistant layer, so that the cost is lower and the cost performance is higher. Moreover, the stainless steel plate layer 110 can effectively prevent the sound-deadening layer from stretching outwards and/or compressing inwards, so that shear stress and stress are generated inside the brake sound-deadening sheet 100, more energy is dissipated, and the sound-deadening effect is achieved. It should be noted here that the stainless steel plate layer 110 has a good noise reduction effect on low-frequency noise. In addition, the stainless steel plate layer 110 has higher glossiness and stronger aesthetic property, can be favored by consumers, meets the requirements of the consumers and has better effect. Therefore, the brake silencing sheet 100 provided by the utility model has the advantages of good performance, long service life, high performance-price ratio, good applicability and aesthetic property, and high use value and practical value.

Preferably, in this embodiment, the thickness of the stainless steel layer is 0.3mm, so that the thickness of the damper silencer assembly 100 is relatively thin, the mass is relatively light, the use is more convenient, and the effect is better.

In other embodiments, the thickness of stainless steel sheet layer 110 may also be set to 0.2 mm. In other embodiments, the thickness of the stainless steel sheet layer 110 may also be set to 2 mm. This makes it possible to apply the brake noise damping sheet 100 to various environments, and the applicability is high. For example, when the requirements for the thickness and strength of the sound-damping sheet 100 of the brake are high, and the thickness does not affect the braking effect of the brake, the stainless steel plate layer 110 with the thickness of 2mm can be selected, so as to enhance the mechanical properties thereof, and meet the use requirements.

In this embodiment, the noise reduction layer is made of a nitrile rubber material. In particular, the nitrile rubber is a light brown elastomer, and has better stability and heat resistance due to strong polar carbon and nitrogen groups. When a braking action occurs, a braking action occurs due to the friction between the two friction members, and not only brake noise is generated during the friction braking, but also heat is generated due to the friction, and the heat is transferred to the brake noise damping plate 100 through a medium, thereby increasing the temperature of the brake noise damping plate 100. Therefore, the service life of the brake noise damping sheet 100 is long due to the heat resistance of the nitrile rubber, the replacement frequency of the noise damping sheet can be effectively reduced, the cost performance is high, the working strength and the difficulty of workers can be reduced, and the practicability is high. Moreover, the nitrile rubber also has better tensile strength. When the brake noise is transmitted to the brake noise damping sheet 100 in the form of acoustic vibration, the nitrile rubber is deformed due to the influence of the acoustic vibration (i.e., when the nitrile rubber is subjected to energy, the nitrile rubber is deformed by elongation or compression), so that the nitrile rubber layer and the constraining layer (the stainless steel plate layer 110 and the steel plate layer in this embodiment) generate shear stress and stress, thereby dissipating the acoustic vibration energy and achieving a better damping effect. It should be noted that the hardness of the rubber layer 120 should be maintained between 60 degrees and 90 degrees, and the hardness of the nitrile rubber in this embodiment is 70 degrees, so as to ensure that the nitrile rubber layer has better deformation capability, and thus more acoustic vibration energy is consumed, and a better damping effect is achieved. When the rubber hardness is smaller, the rubber is softer, although the deformability is stronger, the strength and hardness are not in line with the use requirements, and when the rubber hardness is larger, the deformability is poorer, so that the damping vibration attenuation effect is poorer, the noise reduction effect is poorer, and the use value is lower.

In order to ensure that the silencing effect of the brake silencing piece 100 is good, the service performance of the brake silencing piece is good, and the thickness of the nitrile rubber layer is selected to be 0.05mm-0.12mm, so that the applicability of the brake silencer can be improved, more choices are provided for consumers, the mechanical performance of the brake silencing piece 100 is good, and the practicability is strong. For example, when a thinner brake noise damping sheet 100 is required, a noise damping sheet with a thinner rubber layer 120 may be selected, and similarly, when the noise frequency is lower, a noise damping sheet with a thinner rubber layer 120 may be selected to meet the user's requirement. In this embodiment, the thickness of the nitrile rubber layer is 0.1mm, in other embodiments, a nitrile rubber layer with a thickness of 0.05mm may be selected, and a nitrile rubber layer with a thickness of 0.12mm may also be selected. It should also be noted that in other embodiments, other types of rubber layers 120 may be used, such as butyl rubber, chlorinated butyl rubber, etc. Similarly, in other embodiments, the sound-deadening layer can be selected as other damping materials, for example, the asphalt damping material includes asphalt and a mixture of asphalt and paraffin, sawdust, toluene, graphite, and the like, and the water-based damping material includes resin and a mixture of resin and calcium carbonate, graphite, mica sheets, and the like, so that the damping and vibration-damping effects are achieved, and the sound-deadening effect is good.

In this embodiment, the alloy sheet layer 130 is made of an SPCC-1B steel sheet, which is a common cold-rolled carbon steel sheet. Specifically, the tensile strength of the steel plate is not less than 270MPa, the tensile strength is good, the ductility is good, and the steel plate is suitable for the automobile manufacturing industry. In this embodiment, the thickness of the steel plate layer is 0.3mm, so that the brake noise-damping sheet 100 is light and convenient, and at the same time, the steel plate layer can also be used as a restraint layer to prevent the rubber layer 120 from extending and compressing (when brake noise occurs), so that shear stress and stress are generated inside the noise-damping sheet, more acoustic energy is dissipated, and a better noise-damping effect is achieved. And the steel plate layer is selected as one of the restraint layers, so that the manufacturing cost can be effectively reduced, and the performance-price ratio is high. In other embodiments, in order to meet the strength requirement of the mechanical performance of the silencing sheet, a steel plate layer with the thickness of 0.4mm can be selected. Of course, in other embodiments, a steel plate layer with a thickness of 0.2mm may be selected, so as to provide a user with a lower requirement on mechanical strength and a higher requirement on portability, and have a stronger applicability. In other embodiments, the alloy plate layer 130 may be made of stainless steel, so as to effectively improve the mechanical performance of the damper 100, and the damper has light weight, convenient use and carrying, and high practicability.

In order to conveniently and quickly install the brake noise reduction sheet 100 at a position where noise reduction is required, a sticky layer may be coated on the side of the steel plate layer away from the rubber layer 120, so as to achieve the effect. In this embodiment, the pressure-sensitive adhesive may be coated on one side of the steel plate away from the rubber layer 120, so that the brake noise damping sheet 100 may be adhered to a position where noise damping is required, thereby achieving the effects of convenience and rapidness, and having strong practicability. Moreover, a release film or centrifugal paper can be covered on the pressure-sensitive adhesive layer, so that a user can conveniently carry the brake silencing sheet 100, and the pressure-sensitive adhesive layer can be prevented from losing adhesion or being polluted, thereby losing use value. In addition, when gluing stopper amortization piece 100 on the stopper, be comparatively inseparable laminating effect between stopper amortization piece 100 and the stopper, area of contact is great, so can make the acoustic energy transmit on this amortization piece more to reach better noise cancelling effect. Of course, other types of mounting arrangements may be used in other embodiments, such as hanging the brake squealer blade 100 to the brake.

Specifically, when using, the installer can paste this stopper amortization piece 100 on the stopper, when the stopper performance braking was moved, the stopper noise was transmitted on the amortization piece with the form of acoustic vibration, and the butadiene-acrylonitrile rubber layer on the amortization piece will take place tensile and/or compression deformation, and the stainless steel sheet layer 110 and the alloy sheet layer 130 of both sides will prevent the butadiene-acrylonitrile rubber layer outwards or inwards take place elastic deformation to make inside shear stress and the stress of producing of stopper amortization piece 100, more dissipation energy, thereby reach the amortization effect of consumption, the practicality is stronger.

The working principle of the brake noise damping sheet 100 is as follows:

when the stopper produces the stopper noise because friction, the stopper noise is transmitted on the amortization piece with the form of acoustic vibration, and the butadiene-acrylonitrile rubber layer on the amortization piece will take place tensile and/or compression deformation, and the stainless steel sheet layer 110 and the alloy sheet layer 130 of both sides will prevent the butadiene-acrylonitrile rubber layer outwards or inwards take place elastic deformation, thereby make inside shear stress and the stress of producing of stopper amortization piece 100, more dissipation energy, thereby reach the noise cancelling effect of consumption, the practicality is stronger. Moreover, the stainless steel plate layer 110 has a good noise reduction effect on low-frequency noise, and has high use value and practical value.

In summary, the present invention provides a brake noise damping sheet 100, which includes a noise damping sheet body, and the noise damping sheet body includes a stainless steel plate layer 110, a noise damping layer and an alloy plate layer 130, which are sequentially stacked. When the silencing piece is installed on the brake, the noise is transmitted to the silencing piece in the form of sound vibration, then the silencing layer is deformed due to the effect of sound vibration energy, at the moment, shearing stress and stress are generated between the silencing layer and constraint layers (the stainless steel plate layer 110 and the alloy plate layer 130) on two sides of the silencing layer, so that more energy is dissipated, the damping effect is achieved, a better silencing effect is achieved, and the residual small part of energy is further dissipated in the process of outwards continuing transmission in the stainless steel plate layer 110, so that the effect of eliminating the noise is further achieved, and the practicability is high.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The brake noise reduction sheet is characterized by comprising a noise reduction sheet body, wherein the noise reduction sheet body comprises a stainless steel plate layer, a noise reduction layer and an alloy plate layer which are sequentially stacked.

2. A brake sound damping patch according to claim 1, characterized in that the thickness of the stainless steel sheet layer is 0.3-0.5 mm.

3. The brake noise damping patch according to claim 2, wherein the noise damping layer is a rubber layer.

4. A brake sound damping patch according to claim 3, characterized in that the thickness of the rubber layer is 0.05-0.12 mm.

5. The brake noise damping patch according to claim 4, wherein the rubber layer has a hardness of 60-90 degrees.

6. The brake noise damping patch according to claim 5, wherein said rubber layer is a nitrile rubber layer.

7. The brake noise damping patch according to any one of claims 1 to 6, wherein the alloy plate layer has a thickness of 0.2mm to 0.4 mm.

8. The brake rotor of claim 7, wherein the alloy plate layer is a SPCC-1B steel plate layer.

9. The brake sound damping patch according to claim 1, wherein the sound damping patch body further comprises an adhesive layer, and the adhesive layer is disposed on a side of the alloy plate layer away from the sound damping layer.

10. The brake sound damping patch of claim 9, wherein the adhesive layer is a pressure sensitive adhesive layer.