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Rear disc brake adopting novel brake material of lorry

A technology of disc brakes and brake materials, applied in the types of brakes, brakes in the axial direction, brake components, etc., can solve the problems of difficulty in dissipating braking energy, reduced braking efficiency, poor thermal conductivity, etc. The range of dynamic conditions, the improvement of service life and the effect of reasonable structure design

Active Publication Date: 2017-08-18
NINGBO HELI BRAKE SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used resin-based friction materials have excellent friction and wear properties, light weight, less braking sparks, and good braking effects, but have poor thermal conductivity and difficulty in dissipating braking energy. The biggest problem is that the thermal recession is severe, resulting in reduced braking efficiency

Method used

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  • Rear disc brake adopting novel brake material of lorry
  • Rear disc brake adopting novel brake material of lorry
  • Rear disc brake adopting novel brake material of lorry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A new type of brake material, the raw materials include: phenolic resin 10 parts, nitrile rubber 3 parts, graphene oxide 0.2 parts, lecithin 0.1 parts, liquid paraffin 0.1 parts, glutaraldehyde 2 parts, cardanol modified Polyamide resin 0.5 part, sodium bicarbonate 0.2 part, silicon carbide 0.4 part, ceramic fiber 4 part, lignin fiber 3 part, microcrystalline cellulose 0.1 part, ethylene / vinyl acetate copolymer 0.2 part, magnesium oxide 2 part , 1 part of quartz sand, 2 parts of calcium sulfide, 0.5 part of ethyl methacrylate.

[0047] Among them, the particle size of microcrystalline cellulose is 60 mesh, and the diameter of ceramic fiber is 2.0 μm.

[0048] The preparation method of the truck rear disc brake material includes the following steps:

[0049] Step 1. Mix the phenolic resin with nitrile rubber, graphene oxide, lecithin, liquid paraffin, and glutaraldehyde, and the mixture is heated to 100°C under the protection of nitrogen, kept for 40 minutes, and cooled to roo...

Embodiment 2

[0054] A new type of brake material, the raw materials include: phenolic resin 10 parts, nitrile rubber 4 parts, graphene oxide 0.5 parts, lecithin 0.4 parts, liquid paraffin 0.3 parts, glutaraldehyde 4 parts, cardanol modified Polyamide resin 0.9 part, sodium bicarbonate 0.3 part, silicon carbide 0.7 part, ceramic fiber 7 part, lignin fiber 6 part, microcrystalline cellulose 0.2 part, ethylene / vinyl acetate copolymer 0.5 part, magnesium oxide 4 part , 2 parts of quartz sand, 3 parts of barium sulfide, 0.7 parts of ethyl methacrylate.

[0055] Among them, the particle size of microcrystalline cellulose is 80 mesh, and the diameter of ceramic fiber is 3.0 μm.

[0056] The preparation method of the truck rear disc brake material includes the following steps:

[0057] Step 1. Mix the phenolic resin with nitrile rubber, graphene oxide, lecithin, liquid paraffin, and glutaraldehyde, and the mixture is heated to 120°C under the protection of nitrogen, kept for 35 minutes, and cooled to ro...

Embodiment 3

[0062] A new type of brake material, the raw materials include: phenolic resin 10 parts, nitrile rubber 6 parts, graphene oxide 0.5 parts, lecithin 0.2 parts, liquid paraffin 0.4 parts, glutaraldehyde 5 parts, cardanol modified 1.1 parts of polyamide resin, 0.3 parts of sodium bicarbonate, 0.7 parts of silicon carbide, 7 parts of ceramic fiber, 8 parts of lignin fiber, 0.3 part of microcrystalline cellulose, 0.5 part of ethylene / vinyl acetate copolymer, 4 parts of magnesium oxide , 2 parts of quartz sand, 4 parts of strontium sulfide, 0.6 parts of ethyl methacrylate.

[0063] Among them, the particle size of microcrystalline cellulose is 60 mesh, and the diameter of ceramic fiber is 2.0 μm.

[0064] The preparation method of the truck rear disc brake material includes the following steps:

[0065] Step 1. Mix the phenolic resin with nitrile rubber, graphene oxide, lecithin, liquid paraffin, and glutaraldehyde, and the mixture is heated to 100°C under the protection of nitrogen, kept...

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Abstract

The invention relates to the technical field of brakes, in particular to a rear disc brake adopting a novel brake material of a lorry. The rear disc brake comprises an upper housing, a lower housing, a secondary brake mechanism, a primary brake mechanism and a wheel disc, wherein each of the outer side of the bottom end of the upper housing and the outer side of the upper end of the lower housing is equipped with a fixed plate; a threaded shaft is arranged between the corresponding fixed plates in a penetrating mode; a mounting plate and an inner cavity wall of an upper mounting slot are fixed through a bolt which is arranged in the penetrating mode; a brake block supporting plate is arranged between a secondary brake block and a hydraulic cylinder; the top ends of elastic supporting pins are connected with the top ends of inner cavities of sleeves through first springs; the portion, at the outer side of a power rod, at the upper end of the brake block supporting plate is connected with buffer mechanisms; and each of the side wall of the brake block supporting plate and the side wall of the secondary brake block is symmetrically equipped with limiting blocks. The rear disc brake can realize the grade brake effect, improves the using quality of the brake, avoids a braking pause phenomenon; and meanwhile, using time is reduced and the service life of the brake is prolonged.

Description

Technical field [0001] The invention relates to the technical field of brakes, in particular to a truck rear disc brake adopting a new type of braking material. Background technique [0002] Disc brakes are braked by clamping the brake disc from both sides by friction elements. Compared with other brakes, it has good braking efficiency, stable braking, good heat dissipation, and more convenient replacement of brake pads. Highlight the advantages. Due to its high quality in use, its application range is becoming wider and wider, especially for trucks. Disc brakes can bring their advantages to the truck and improve the safety of trucks. [0003] Disc brakes in the prior art all use the clamping action of two symmetrically arranged brake pads to lock the wheel to achieve the braking effect, but this braking effect has not reached the most ideal state and cannot be achieved. Hierarchical braking results in frequent setbacks when disc brakes are used. The buffering effect is poor, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D55/22F16D65/14F16D65/095F16D65/097F16D69/02C08L61/06C08L9/02C08L91/06C08L77/00C08L97/02C08L1/04C08L23/08C08K13/04C08K3/04C08K3/34C08K7/04F16D121/04
CPCC08L61/06C08L2205/035F16D55/22F16D65/095F16D65/097F16D65/14F16D69/02F16D69/026F16D2200/006F16D2200/0082C08L9/02C08L91/06C08L77/00C08L97/02C08L1/04C08L23/0853C08K13/04C08K3/04C08K3/34C08K7/04
Inventor 许星星
Owner NINGBO HELI BRAKE SYST CO LTD
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