CN111120550A - Dedicated strong wear-resisting brake block of heavy-duty truck - Google Patents

Dedicated strong wear-resisting brake block of heavy-duty truck Download PDF

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Publication number
CN111120550A
CN111120550A CN202010028897.4A CN202010028897A CN111120550A CN 111120550 A CN111120550 A CN 111120550A CN 202010028897 A CN202010028897 A CN 202010028897A CN 111120550 A CN111120550 A CN 111120550A
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CN
China
Prior art keywords
parts
brake block
fiber
brake pad
modified
Prior art date
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Pending
Application number
CN202010028897.4A
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Chinese (zh)
Inventor
孙奇春
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Ningguo Feiying Auto Spare Parts Co ltd
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Ningguo Feiying Auto Spare Parts Co ltd
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Application filed by Ningguo Feiying Auto Spare Parts Co ltd filed Critical Ningguo Feiying Auto Spare Parts Co ltd
Priority to CN202010028897.4A priority Critical patent/CN111120550A/en
Publication of CN111120550A publication Critical patent/CN111120550A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04Attachment of linings
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02Compositions of linings; Methods of manufacturing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02Compositions of linings; Methods of manufacturing
    • F16D69/027Compositions based on metals or inorganic oxides
    • F16D69/028Compositions based on metals or inorganic oxides containing fibres
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/38Boron-containing compounds
    • C08K2003/382Boron-containing compounds and nitrogen
    • C08K2003/385Binary compounds of nitrogen with boron
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/011Nanostructured additives
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/014Additives containing two or more different additives of the same subgroup in C08K
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/14Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16Fibres; Fibrils
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/005Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces having a layered structure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04Attachment of linings
    • F16D2069/0425Attachment methods or devices
    • F16D2069/045Bonding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0004Materials; Production methods therefor metallic
    • F16D2200/0008Ferro
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/0004Materials; Production methods therefor metallic
    • F16D2200/0026Non-ferro
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00Materials; Production methods therefor
    • F16D2200/006Materials; Production methods therefor containing fibres or particles

Abstract

The invention relates to a strong wear-resistant brake pad special for a heavy truck, which comprises a brake pad base material and a plurality of layers of brake pads, wherein the brake pad base material is provided with a high-hardness surrounding ring which is wrapped on the outer side of the plurality of layers of brake pads and used for fixing the plurality of layers of brake pads; the back of the brake pad base material is provided with a heat dissipation and noise reduction cavity; a heat dissipation sound-deadening hole penetrating through the plurality of layers of brake pads is formed in the heat dissipation sound-deadening cavity; a porous heat dissipation noise reduction wear-resistant piece made of ceramic rubber is arranged in the heat dissipation noise reduction hole; a silencing buffer pad is laid inside the heat dissipation silencing cavity; an anti-seismic damping elastic sheet fixing piece is arranged in the heat dissipation and noise reduction cavity, and anti-seismic damping elastic sheets which are symmetrically distributed are arranged on the anti-seismic damping elastic sheet fixing piece; according to the invention, the carbon fiber modified resin is mixed with the carbon fiber, and other high-strength, high-hardness and high-toughness materials are added, so that the performance of the brake pad is improved; set up multilayer brake block, the friction disc of each layer carries out the braking action to the wheel in turn, and whole dispersion and interconnect have improved the wearability and the practicality of brake block.

Description

Dedicated strong wear-resisting brake block of heavy-duty truck
Technical Field
The invention relates to the technical field of automobile brake pad design, in particular to a strong wear-resistant brake pad special for a heavy truck.
Background
With the rapid development of the world economy, the demand for logistics is increasing. Road transportation is also gaining favor of people as a convenient and fast transportation mode with moderate price. As a main vehicle for road transportation, the number of heavy trucks is increasing. Because heavy-duty truck load capacity is big, the requirement to braking system is higher, especially under the complicated road conditions in mountain area, and the requirement to the brake block is stricter than general road conditions. Firstly, under the condition of mountain road conditions, the brake pad is required to have excellent temperature resistance, and if the brake pad continuously descends, the temperature of the brake pad can sometimes reach 800 ℃ or even higher. The brake pads sold in the market at present are difficult to reach the temperature resistance degree, and drivers often adopt cooling measures such as water spraying and the like or stop for cooling a brake system by walking for ensuring that the brakes can be braked in the continuous downhill process. Even so, the accidents caused by brake failure are countless each year. Secondly, the service life of the existing brake pad under the condition of mountain road is much shorter than that under the condition of normal road, even some brake pads can only run for thousands of kilometers, the service life of products of original factories is not good enough, and the service cost of the automobile owner is greatly increased.
Although various full-looking brake pads are available in the market at present, no brake pad specially developed for heavy trucks under mountain road conditions exists. Therefore, the problem to be solved by the technical personnel in the field is how to provide a strong wear-resistant brake pad which is high in strength, good in wear resistance and good in heat dissipation and is specially used for heavy trucks.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a strong wear-resistant brake pad special for a heavy truck, which is designed into a multi-layer friction plate combined brake pad by adding carbon fibers or carbon fiber modified resin and an organic composite material, and aims to overcome the defects of insufficient strength, poor heat conductivity and poor wear resistance of the brake pad.
In order to realize the purpose of the invention, the adopted technical scheme is as follows:
the utility model provides a dedicated strong wear-resisting brake block of heavy-duty freight train, is including brake block base material and multilayer brake block, the multilayer brake block is including the top layer brake block, the top layer brake block is including the constitution raw materials of following parts by weight:
20-25 parts of carbon fiber modified phenolic resin, 15-20 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 13-18 parts of carbon fiber modified PC/ABS alloy, 10-15 parts of glass fiber modified diphenyl ether formaldehyde resin, 8-13 parts of phenolic resin modified alkyd resin, 6-10 parts of phenol modified urea-formaldehyde resin, 5-8 parts of spidroin fiber, 3-7 parts of alloy fiber, 3-6 parts of nano boron nitride and silicon nitride mixed powder, 4-9 parts of graphene fiber, 3-9 parts of vulcanized carbine fiber, 2-5 parts of anti-aging agent, 2-4 parts of ultraviolet absorbent, 1-3 parts of accelerator and 2-3 parts of dispersing agent.
As a preferred technical scheme, the multilayer brake block further comprises a two-layer brake block, wherein the two-layer brake block comprises the following raw materials in parts by weight:
20-25 parts of carbon fiber modified PC/ABS alloy, 15-20 parts of glass fiber modified diphenyl ether formaldehyde resin, 10-15 parts of phenolic resin modified alkyd resin, 10-13 parts of phenol modified urea-formaldehyde resin, 6-12 parts of carbon fiber, 5-9 parts of glass fiber, 5-8 parts of glass fabric, 4-7 parts of alloy fiber, 3-6 parts of nano silicon nitride and silicon carbide fiber, 3-8 parts of spidroin fiber, 2-5 parts of toughened alumina hollow sphere, 2-4 parts of gamma-FeO (OH), 2-4 parts of mixed crystal whisker of FeCO3 and CaTiO3 and 2-4 parts of scale graphite crystal whisker.
As a preferred technical scheme, the multilayer brake block further comprises a three-layer brake block, wherein the three-layer brake block comprises the following raw materials in parts by weight:
20-25 parts of carbon fiber modified phenolic resin, 15-20 parts of carbon fiber modified PC/ABS alloy, 10-16 parts of glass fiber modified diphenyl ether formaldehyde resin, 8-13 parts of carbon fiber, 4-9 parts of polyamide fiber, 5-8 parts of polyester fiber, 5-10 parts of glass fabric, 3-8 parts of alloy fiber, 3-6 parts of nano silicon nitride, 3-5 parts of silicon carbide fiber, 2-5 parts of toughened alumina fiber, 2-6 parts of nano calcium carbonate powder and 2-4 parts of mixed whisker of gamma-FeO (OH), FeCO3 and CaTiO 3.
As a preferred technical scheme, the multilayer brake block further comprises a base layer brake block, wherein the base layer brake block comprises the following raw materials in parts by weight:
15-20 parts of carbon fiber modified phenolic resin, 15-18 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 13-18 parts of phenolic resin modified alkyd resin, 13-15 parts of alloy fiber, 15-20 parts of carbon fiber, 5-10 parts of glass fabric, 4-8 parts of toughened alumina hollow spheres and 3-6 parts of crystalline flake graphite whiskers.
As a preferred technical scheme, the alloy fiber comprises the following raw materials in percentage by weight:
60-70 wt% of iron, 3-8 wt% of titanium, 4-6 wt% of manganese, 3-6 wt% of chromium, 3-5 wt% of tungsten, 1-3 wt% of molybdenum, 2-3 wt% of osmium, 1-3 wt% of vanadium, 1-2 wt% of tantalum and 3-8 wt% of carbon.
As a preferable technical scheme, the brake pad base material is high-chromium high-manganese alloy steel, wherein the percentage content of chromium is 5-8 wt%, and the percentage content of manganese is 3-6 wt%.
According to a preferable technical scheme, the brake pad base material is provided with a high-hardness surrounding ring which is wrapped on the outer side of the multi-layer brake pad and used for fixing the multi-layer brake pad.
As a preferred technical scheme, a heat dissipation and noise reduction cavity is arranged on the back surface of the brake pad base material.
As the preferred technical scheme, a heat dissipation silencing hole penetrating through the multiple layers of brake pads is formed in the heat dissipation silencing cavity.
As a preferable technical scheme, a porous heat dissipation noise reduction wear-resistant piece made of ceramic rubber is arranged in the heat dissipation noise reduction hole.
As the preferred technical scheme, a silencing buffer pad is paved inside the heat dissipation silencing cavity.
According to the preferable technical scheme, anti-seismic damping elastic sheet fixing pieces are arranged in the heat dissipation and noise reduction cavity, and anti-seismic damping elastic sheets which are symmetrically distributed are installed on the anti-seismic damping elastic sheet fixing pieces.
As the preferred technical scheme, the thickness of the base layer brake block is larger than that of the high-hardness surrounding ring.
As a preferred technical scheme, the multilayer brake block is sequentially arranged into a top layer brake block, a two-layer brake block, a three-layer brake block and a base layer brake block from top to bottom.
As the preferred technical scheme, the top layer brake block, the second layer brake block, the third layer brake block and the base layer brake block are bonded through high-strength and high-adhesion bonding agents, and the side edges are fixed through the brake block fixing piece.
The invention has the beneficial effects that: according to the invention, the conventional brake pad material is changed into carbon fiber modified resin to be mixed with carbon fibers, and then other materials with high strength, high hardness and high toughness are added, so that the rigidity strength and toughness of the brake pad obtained by mixing are greatly improved; by adding the carbon fiber and the alloy fiber, the heat conductivity of the brake pad is further improved, heat generated by friction is led out in time, and then the heat and vibration noise are dissipated in time through the heat dissipation and noise reduction cavity; the brake pads are arranged in multiple layers, and the materials of the brake pads in each layer are different, so that the wear resistance is different, and the brake pads in each layer are tightly connected, so that the working efficiency of the brake pads is improved; the combined brake pad is skillfully compounded by multiple layers of brake pads, four layers of high-wear-resistance friction plates alternately brake the wheel, and the four layers of high-wear-resistance friction plates are integrally dispersed and mutually connected, so that the wear resistance and the practicability of the brake pad are improved.
Drawings
FIG. 1 is a front view of the high-wear-resistance brake pad for heavy goods vehicles according to the present invention.
FIG. 2 is a schematic side view of the strong wear-resistant brake pad for heavy goods vehicles according to the present invention.
FIG. 3 is a schematic rear view of the strong wear-resistant brake pad for heavy goods vehicles according to the present invention.
In the figure: 1. a brake pad substrate; 2. a high-hardness enclosure; 3. a heat dissipation and noise reduction cavity; 4. a top layer brake pad; 5. a heat dissipation sound elimination hole; 6. a heat dissipation, noise reduction and wear resistant part; 7. a second layer of brake pad; 8. three layers of lie-spaying car sheets; 9. a base layer brake pad; 10. a silencing buffer pad; 11. an anti-seismic damping elastic sheet fixing piece; 12. the shock-resistant damping elastic sheet; 13. brake block mounting.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
The utility model provides a dedicated strong wear-resisting brake block of heavy-duty freight train, is including brake block base material 1 and multilayer brake block, the multilayer brake block is including top layer brake block 4, top layer brake block 4 is including the constitution raw materials of following parts by weight:
25 parts of carbon fiber modified phenolic resin, 20 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 18 parts of carbon fiber modified PC/ABS alloy, 15 parts of glass fiber modified diphenyl ether formaldehyde resin, 13 parts of phenolic resin modified alkyd resin, 10 parts of phenol modified urea resin, 8 parts of spidroin fiber, 7 parts of alloy fiber, 6 parts of mixed powder of nanoscale boron nitride and silicon nitride, 9 parts of graphene fiber, 9 parts of vulcanized carbyne fiber, 5 parts of anti-aging agent, 4 parts of ultraviolet absorbent, 3 parts of accelerator and 3 parts of dispersing agent.
Further, the multilayer brake block also comprises a two-layer brake block 7, wherein the two-layer brake block 7 comprises the following raw materials in parts by weight:
25 parts of carbon fiber modified PC/ABS alloy, 20 parts of glass fiber modified diphenyl ether formaldehyde resin, 15 parts of phenolic resin modified alkyd resin, 13 parts of phenol modified urea-formaldehyde resin, 12 parts of carbon fiber, 9 parts of glass fiber, 8 parts of glass fabric, 7 parts of alloy fiber, 6 parts of nanoscale silicon nitride and silicon carbide fiber, 8 parts of spidroin protein fiber, 5 parts of toughened alumina hollow sphere, 4 parts of mixed whisker of gamma-FeO (OH), FeCO3 and CaTiO3 and 4 parts of flake graphite whisker.
Further, the multilayer brake block also comprises a three-layer brake block 8, wherein the three-layer brake block 8 comprises the following raw materials in parts by weight:
25 parts of carbon fiber modified phenolic resin, 20 parts of carbon fiber modified PC/ABS alloy, 16 parts of glass fiber modified diphenyl ether formaldehyde resin, 13 parts of carbon fiber, 9 parts of polyamide fiber, 8 parts of polyester fiber, 10 parts of glass fabric, 8 parts of alloy fiber, 6 parts of nano silicon nitride, 5 parts of silicon carbide fiber, 5 parts of toughened alumina fiber, 6 parts of nano calcium carbonate powder and 4 parts of mixed whisker of gamma-FeO (OH), FeCO3 and CaTiO 3.
Further, the multilayer brake block further comprises a base layer brake block 9, wherein the base layer brake block 9 comprises the following raw materials in parts by weight:
20 parts of carbon fiber modified phenolic resin, 18 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 18 parts of phenolic resin modified alkyd resin, 15 parts of alloy fiber, 20 parts of carbon fiber, 10 parts of glass fabric, 8 parts of toughened alumina hollow spheres and 6 parts of crystalline flake graphite whisker.
Further, the alloy fiber comprises the following raw materials in percentage by weight:
iron 70 wt%, titanium 3 wt%, manganese 4 wt%, chromium 3 wt%, tungsten 3 wt%, molybdenum 1 wt%, osmium 2 wt%, vanadium 3 wt%, tantalum 2 wt%, and carbon 8 wt%.
Further, the brake pad substrate 1 is high-chromium high-manganese alloy steel, wherein the percentage content of chromium is 8 wt%, and the percentage content of manganese is 6 wt%.
Example 2
The utility model provides a dedicated strong wear-resisting brake block of heavy-duty freight train, is including brake block base material 1 and multilayer brake block, the multilayer brake block is including top layer brake block 4, top layer brake block 4 is including the constitution raw materials of following parts by weight:
20 parts of carbon fiber modified phenolic resin, 15 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 13 parts of carbon fiber modified PC/ABS alloy, 10 parts of glass fiber modified diphenyl ether formaldehyde resin, 8 parts of phenolic resin modified alkyd resin, 6 parts of phenol modified urea-formaldehyde resin, 5 parts of spidroin protein fiber, 3 parts of alloy fiber, 3 parts of nano-scale boron nitride and silicon nitride mixed powder, 4 parts of graphene fiber, 3 parts of carbon sulfide alkyne fiber, 2 parts of anti-aging agent, 2 parts of ultraviolet absorbent, 1 part of accelerator and 2 parts of dispersing agent.
Further, the multilayer brake block also comprises a two-layer brake block 7, wherein the two-layer brake block 7 comprises the following raw materials in parts by weight:
20 parts of carbon fiber modified PC/ABS alloy, 15 parts of glass fiber modified diphenyl ether formaldehyde resin, 10 parts of phenolic resin modified alkyd resin, 10 parts of phenol modified urea-formaldehyde resin, 6 parts of carbon fiber, 5 parts of glass fabric, 4 parts of alloy fiber, 3 parts of nanoscale silicon nitride and silicon carbide fiber, 3 parts of spidroin protein fiber, 2 parts of toughened alumina hollow sphere, 2 parts of gamma-FeO (OH), 2 parts of mixed crystal whisker of FeCO3 and CaTiO3 and 2 parts of crystalline flake graphite crystal whisker.
Further, the multilayer brake block also comprises a three-layer brake block 8, wherein the three-layer brake block 8 comprises the following raw materials in parts by weight:
20 parts of carbon fiber modified phenolic resin, 15 parts of carbon fiber modified PC/ABS alloy, 10 parts of glass fiber modified diphenyl ether formaldehyde resin, 8 parts of carbon fiber, 4 parts of polyamide fiber, 5 parts of polyester fiber, 5 parts of glass fabric, 3 parts of alloy fiber, 3 parts of nano silicon nitride, 3 parts of silicon carbide fiber, 2 parts of toughened alumina fiber, 2 parts of nano calcium carbonate powder and 2 parts of mixed whisker of gamma-FeO (OH), FeCO3 and CaTiO 3.
Further, the multilayer brake block further comprises a base layer brake block 9, wherein the base layer brake block 9 comprises the following raw materials in parts by weight:
15 parts of carbon fiber modified phenolic resin, 15 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 13 parts of phenolic resin modified alkyd resin, 13 parts of alloy fiber, 15 parts of carbon fiber, 5 parts of glass fabric, 4 parts of toughened alumina hollow spheres and 3 parts of crystalline flake graphite whisker.
Further, the alloy fiber comprises the following raw materials in percentage by weight:
60 wt% of iron, 8 wt% of titanium, 6 wt% of manganese, 6 wt% of chromium, 5 wt% of tungsten, 3 wt% of molybdenum, 2 wt% of osmium, 2 wt% of vanadium, 2 wt% of tantalum and 6 wt% of carbon.
Further, the brake pad substrate 1 is high-chromium high-manganese alloy steel, wherein the percentage content of chromium is 5 wt%, and the percentage content of manganese is 3 wt%.
Example 3
The utility model provides a dedicated strong wear-resisting brake block of heavy-duty freight train, is including brake block base material 1 and multilayer brake block, the multilayer brake block is including top layer brake block 4, top layer brake block 4 is including the constitution raw materials of following parts by weight:
23 parts of carbon fiber modified phenolic resin, 16 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 15 parts of carbon fiber modified PC/ABS alloy, 12 parts of glass fiber modified diphenyl ether formaldehyde resin, 9 parts of phenolic resin modified alkyd resin, 8 parts of phenol modified urea-formaldehyde resin, 7 parts of spidroin protein fiber, 6 parts of alloy fiber, 4 parts of mixed powder of nanoscale boron nitride and silicon nitride, 6 parts of graphene fiber, 8 parts of vulcanized carbyne fiber, 2 parts of anti-aging agent, 2 parts of ultraviolet absorbent, 2 parts of accelerator and 2 parts of dispersing agent.
Further, the multilayer brake block also comprises a two-layer brake block 7, wherein the two-layer brake block 7 comprises the following raw materials in parts by weight:
21 parts of carbon fiber modified PC/ABS alloy, 17 parts of glass fiber modified diphenyl ether formaldehyde resin, 13 parts of phenolic resin modified alkyd resin, 11 parts of phenol modified urea-formaldehyde resin, 9 parts of carbon fiber, 6 parts of glass fiber, 7 parts of glass fabric, 5 parts of alloy fiber, 5 parts of nanoscale silicon nitride and silicon carbide fiber, 6 parts of spidroin protein fiber, 3 parts of toughened alumina hollow sphere, 3 parts of gamma-FeO (OH), 3 parts of mixed crystal whisker of FeCO3 and CaTiO3 and 3 parts of crystalline flake graphite crystal whisker.
Further, the multilayer brake block also comprises a three-layer brake block 8, wherein the three-layer brake block 8 comprises the following raw materials in parts by weight:
24 parts of carbon fiber modified phenolic resin, 29 parts of carbon fiber modified PC/ABS alloy, 15 parts of glass fiber modified diphenyl ether formaldehyde resin, 8 parts of carbon fiber, 5 parts of polyamide fiber, 6 parts of polyester fiber, 6 parts of glass fabric, 4 parts of alloy fiber, 4 parts of nano silicon nitride, 4 parts of silicon carbide fiber, 3 parts of toughened alumina fiber, 3 parts of nano calcium carbonate powder and 4 parts of mixed whisker of gamma-FeO (OH), FeCO3 and CaTiO 3.
Further, the multilayer brake block further comprises a base layer brake block 9, wherein the base layer brake block 9 comprises the following raw materials in parts by weight:
18 parts of carbon fiber modified phenolic resin, 16 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 14 parts of phenolic resin modified alkyd resin, 14 parts of alloy fiber, 17 parts of carbon fiber, 7 parts of glass fabric, 5 parts of toughened alumina hollow spheres and 4 parts of crystalline flake graphite whisker.
Further, the alloy fiber comprises the following raw materials in percentage by weight:
65 wt% of iron, 4 wt% of titanium, 5 wt% of manganese, 5 wt% of chromium, 4 wt% of tungsten, 2 wt% of molybdenum, 2 wt% of osmium, 3 wt% of vanadium, 2 wt% of tantalum and 8 wt% of carbon.
Further, the brake pad substrate 1 is high-chromium high-manganese alloy steel, wherein the percentage content of chromium is 6 wt%, and the percentage content of manganese is 5 wt%.
As shown in fig. 1 to 3, a strong wear-resistant brake pad for heavy goods vehicles according to embodiments 1 to 3:
furthermore, a high-hardness surrounding ring 2 which is wrapped on the outer side of the multi-layer brake pad and used for fixing the multi-layer brake pad is arranged on the brake pad base material 1.
Furthermore, a heat dissipation and noise reduction cavity 3 is arranged on the back surface of the brake pad base material 1.
Furthermore, a heat dissipation sound-deadening hole 5 penetrating through the multilayer brake pad is formed in the heat dissipation sound-deadening cavity 3.
Furthermore, a porous heat dissipation noise reduction wear-resistant piece 6 made of ceramic rubber is arranged in the heat dissipation noise reduction hole 5.
Furthermore, a sound-absorbing cushion 10 is laid inside the heat dissipation sound-absorbing cavity 3.
Furthermore, an anti-seismic damping elastic sheet fixing piece 11 is arranged in the heat dissipation and noise reduction cavity 3, and anti-seismic damping elastic sheets 12 are symmetrically distributed on the anti-seismic damping elastic sheet fixing piece 11.
Furthermore, the thickness of the substrate brake pad 9 is larger than that of the high-hardness enclosure 2.
Furthermore, the multi-layer brake pad is sequentially arranged into a top layer brake pad 4, a second layer brake pad 7, a third layer brake pad 8 and a base layer brake pad 9 from top to bottom.
Furthermore, the top layer brake block 4, the second layer brake block 7, the third layer brake block 8 and the base layer brake block 9 are bonded by a high-strength and high-adhesiveness adhesive, and the side edges are fixed by the brake block fixing parts 13.
According to the invention, the conventional brake pad material is changed into carbon fiber modified resin to be mixed with carbon fibers, and then other materials with high strength, high hardness and high toughness are added, so that the rigidity and toughness of the brake pad obtained by mixing are greatly improved; by adding the carbon fiber and the alloy fiber, the heat conductivity of the brake pad is further improved, heat generated by friction is led out in time, and then the heat and vibration noise are dissipated in time through the heat dissipation and noise reduction cavity; the brake pads are arranged in multiple layers, and the materials of the brake pads in each layer are different, so that the wear resistance is different, and the brake pads in each layer are tightly connected, so that the working efficiency of the brake pads is improved; the combined brake pad is skillfully compounded by multiple layers of brake pads, four layers of high-wear-resistance friction plates alternately brake the wheel, and the four layers of high-wear-resistance friction plates are integrally dispersed and mutually connected, so that the wear resistance and the practicability of the brake pad are improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a dedicated strong wear-resisting brake block of heavy-duty freight train, includes brake block base material (1) and multilayer brake block, its characterized in that: the multilayer brake block comprises a top layer brake block (4), wherein the top layer brake block (4) comprises the following raw materials in parts by weight:
20-25 parts of carbon fiber modified phenolic resin, 15-20 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 13-18 parts of carbon fiber modified PC/ABS alloy, 10-15 parts of glass fiber modified diphenyl ether formaldehyde resin, 8-13 parts of phenolic resin modified alkyd resin, 6-10 parts of phenol modified urea-formaldehyde resin, 5-8 parts of spidroin fiber, 3-7 parts of alloy fiber, 3-6 parts of nano boron nitride and silicon nitride mixed powder, 4-9 parts of graphene fiber, 3-9 parts of vulcanized carbine fiber, 2-5 parts of anti-aging agent, 2-4 parts of ultraviolet absorbent, 1-3 parts of accelerator and 2-3 parts of dispersing agent.
2. The strong abrasion-resistant brake pad special for heavy goods vehicles according to claim 1, wherein: the multilayer brake block also comprises a two-layer brake block (7), wherein the two-layer brake block (7) comprises the following raw materials in parts by weight:
20-25 parts of carbon fiber modified PC/ABS alloy, 15-20 parts of glass fiber modified diphenyl ether formaldehyde resin, 10-15 parts of phenolic resin modified alkyd resin, 10-13 parts of phenol modified urea-formaldehyde resin, 6-12 parts of carbon fiber, 5-9 parts of glass fiber, 5-8 parts of glass fabric, 4-7 parts of alloy fiber, 3-6 parts of nano silicon nitride and silicon carbide fiber, 3-8 parts of spidroin fiber, 2-5 parts of toughened alumina hollow sphere, 2-4 parts of gamma-FeO (OH), 2-4 parts of mixed crystal whisker of FeCO3 and CaTiO3 and 2-4 parts of scale graphite crystal whisker.
3. The strong abrasion-resistant brake pad special for heavy goods vehicles according to claim 2, wherein: the multilayer brake block also comprises a three-layer brake block (8), wherein the three-layer brake block (8) comprises the following raw materials in parts by weight:
20-25 parts of carbon fiber modified phenolic resin, 15-20 parts of carbon fiber modified PC/ABS alloy, 10-16 parts of glass fiber modified diphenyl ether formaldehyde resin, 8-13 parts of carbon fiber, 4-9 parts of polyamide fiber, 5-8 parts of polyester fiber, 5-10 parts of glass fabric, 3-8 parts of alloy fiber, 3-6 parts of nano silicon nitride, 3-5 parts of silicon carbide fiber, 2-5 parts of toughened alumina fiber, 2-6 parts of nano calcium carbonate powder and 2-4 parts of mixed whisker of gamma-FeO (OH), FeCO3 and CaTiO 3.
4. The strong abrasion-resistant brake pad special for heavy goods vehicles according to claim 3, wherein: the multilayer brake block also comprises a basic layer brake block (9), wherein the basic layer brake block (9) comprises the following raw materials in parts by weight:
15-20 parts of carbon fiber modified phenolic resin, 15-18 parts of carbon fiber modified tetrafluoroethylene-ethylene copolymer, 13-18 parts of phenolic resin modified alkyd resin, 13-15 parts of alloy fiber, 15-20 parts of carbon fiber, 5-10 parts of glass fabric, 4-8 parts of toughened alumina hollow spheres and 3-6 parts of crystalline flake graphite whiskers.
5. The heavy goods vehicle-specific strong wear-resistant brake pad according to any one of claims 1 to 4, wherein: the alloy fiber comprises the following raw materials in percentage by weight:
60-70 wt% of iron, 3-8 wt% of titanium, 4-6 wt% of manganese, 3-6 wt% of chromium, 3-5 wt% of tungsten, 1-3 wt% of molybdenum, 2-3 wt% of osmium, 1-3 wt% of vanadium, 1-2 wt% of tantalum and 3-8 wt% of carbon.
6. The heavy goods vehicle-specific strong wear-resistant brake pad according to any one of claims 1 to 4, wherein: the brake pad base material (1) is high-chromium high-manganese alloy steel, wherein the percentage content of chromium is 5-8 wt%, and the percentage content of manganese is 3-6 wt%.
7. The modified resin-based organic composite brake pad of claim 6, wherein: the brake pad base material (1) is provided with a high-hardness surrounding ring (2) which is wrapped on the outer side of the multilayer brake pad and used for fixing the multilayer brake pad.
8. The modified resin-based organic composite brake pad of claim 7, wherein: the back of the brake pad base material (1) is provided with a heat dissipation and noise reduction cavity (3);
a heat dissipation sound-deadening hole (5) penetrating through the plurality of layers of brake pads is formed in the heat dissipation sound-deadening cavity (3);
and a porous heat dissipation noise reduction wear-resistant piece (6) made of ceramic rubber is arranged in the heat dissipation noise reduction hole (5).
9. The modified resin-based organic composite brake pad of claim 7, wherein: a silencing buffer pad (10) is laid in the heat dissipation silencing cavity (3);
an anti-seismic damping elastic sheet fixing piece (11) is arranged in the heat dissipation and noise reduction cavity (3), and anti-seismic damping elastic sheets (12) which are symmetrically distributed are mounted on the anti-seismic damping elastic sheet fixing piece (11).
10. The modified resin-based organic composite brake pad according to claim 4 or 7, wherein: the thickness of the base layer brake block (9) is larger than that of the high-hardness surrounding ring (2);
the multi-layer brake pads are sequentially arranged into a top layer brake pad (4), a second layer brake pad (7), a third layer brake pad (8) and a base layer brake pad (9) from top to bottom;
the top layer brake block (4), the two-layer brake block (7), the three-layer brake block (8) and the base layer brake block (9) are bonded through high-strength and high-adhesion bonding agents, and the side edges of the top layer brake block are fixed through the brake block fixing pieces (13).
CN202010028897.4A 2020-01-12 2020-01-12 Dedicated strong wear-resisting brake block of heavy-duty truck Pending CN111120550A (en)

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