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Grinding device of tread cleaning device for urban rail and preparation method thereof

A technology of tread cleaning and grinding, which is applied in the field of rail vehicle braking materials, and can solve the problems of lack of urban rail vehicle grinding

Pending Publication Date: 2021-05-18
CRRC CHANGZHOU TECH MARK IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of lack of suitable grinders for urban rail vehicles in the prior art, to propose a grinder for urban rail tread cleaning device and its preparation method, so as to improve the braking effect of urban rail vehicles

Method used

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  • Grinding device of tread cleaning device for urban rail and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The grinding wheel of the urban rail tread cleaning device provided by the present embodiment, wherein each component in the grinding wheel comprises by weight percentage: 5% of binder, 18% of tackifier, 22% of modifying agent, 24% of reinforcing material, adjusting Agent 31%.

[0018] In this embodiment, the binder is epoxy resin modified phenolic resin and silicone modified phenolic resin, wherein the weight ratio of the two binders is 2:1; the tackifier is zinc oxide and kaolin, wherein the zinc oxide The particle size is 100 mesh, the particle size of kaolin is 200 mesh, and the weight ratio of the two tackifiers is 3:4; The diameter is 250 mesh, and the weight ratio of the two modifiers is 2:3; the reinforcing fiber is sepiolite fiber and carbon fiber, and the weight ratio of the two fibers is 2:1; the regulator is molybdenum disulfide and calcium carbonate, The weight ratio of the two is 1:3.

[0019] The preparation method of the grinding wheel of the urban rai...

Embodiment 2

[0026] The grinding wheel of the urban rail tread cleaning device provided by the present embodiment, wherein each component in the grinding wheel comprises by weight percentage: 8% of binding agent, 24% of tackifier, 15% of modifying agent, 24% of reinforcing material, adjusting agent 29%.

[0027] In this example, the binder is polyvinyl acetal modified phenolic resin and silicone modified phenolic resin, and the weight ratio of the two binders is 1:2; the tackifier is zinc oxide and calcite, of which The particle size of zinc is 100 mesh, the particle size of calcite is 200 mesh, and the weight ratio of the two tackifiers is 2:3; the shape modifier is silicon carbide and magnesium oxide, and the particle size of silicon carbide is 400 mesh. The particle size of magnesium oxide is 250 mesh, and the weight ratio of the two modifiers is 1:4; the reinforcing fiber is sepiolite fiber and aramid fiber, and the weight ratio of the two fibers is 3:1; the regulator is graphite Powd...

Embodiment 3

[0035] The grinding wheel of the urban rail tread cleaning device provided by the present embodiment, wherein each component in the grinding wheel comprises by weight percentage: 11% of binding agent, 18% of tackifier, 15% of modifying agent, 36% of reinforcing material, adjusting Agent 20%.

[0036] In this example, the binder is boron-modified phenolic resin and silicone-modified phenolic resin, and the weight ratio of the two binders is 1:1; the tackifier is calcite and kaolin, and the particle size of calcite is 200 mesh, the particle size of kaolin is 200 mesh, and the weight ratio of the two tackifiers is 1:1; The diameter is 250 mesh, and the weight ratio of the two modifiers is 1:4; the reinforcing fiber is aramid fiber and carbon fiber, and the weight ratio of the two fibers is 1:1; the regulator is molybdenum disulfide, calcium carbonate and graphite Powder, the weight ratio of the three of them is 1:2:1.

[0037] The preparation method of the grinding wheel of the...

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Abstract

The invention relates to a grinding piece and a preparation method thereof, in particular to a grinding piece of a tread cleaning device for an urban rail and a preparation method thereof, and belongs to the technical field of railway vehicle brake materials. The grinding device comprises a steel backing plate and a friction body, and is characterized in that the friction body comprises the following components, in percentage by weight: 5%-11% of a binder, 12%-24% of a tackifier, 15%-22% of a shaping agent, 12%-36% of reinforced fibers and 16%-56% of a regulator. According to the grinding device designed for the urban rails, the heat resistance and impact toughness of the grinding device are effectively improved, the heat dissipation problem caused by frequent braking of urban rail vehicles is solved, the probability that particles are transferred to wheel treads is increased, and the wheel rail adhesion coefficient is further increased. And the contact area between the hard particles in the grinding device and the wheel tread is further increased, the wheel shaping efficiency is improved, and the mechanical property and the heat dissipation performance of the grinding device are improved.

Description

technical field [0001] The invention relates to a grinder and a preparation method thereof, in particular to a grinder for an urban rail tread cleaning device and a preparation method thereof, belonging to the technical field of rail vehicle braking materials. Background technique [0002] With the functions of tread cleaning, wheel and rail thickening, wheel modification and other functions of the tread cleaning device, it has been widely recognized and applied in high-speed trains. At present, urban rail transit vehicles mainly adopt two types of tread brakes and disc brakes. For vehicles using disc brakes, pollutants such as oil stains and water stains on the wheel surface cannot be removed in time, and urban rail vehicles often start braking. , so the wheel slips due to low wheel-rail adhesion; in addition, the disc-braked vehicle is more serious than the tread-braked urban rail vehicle. Therefore, the popularization of tread cleaning devices on urban rails has graduall...

Claims

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Application Information

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IPC IPC(8): B60S1/68C04B26/32C04B26/12
CPCB60S1/68C04B26/122C04B26/32C04B2111/00362C04B14/106C04B14/28C04B14/30C04B14/303C04B14/304C04B14/36C04B14/386C04B14/4643C04B24/302C04B14/024C04B14/324C04B16/0691
Inventor 伍安旭吴波陈逊汪冬冬张宇宸
Owner CRRC CHANGZHOU TECH MARK IND CO LTD
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