Auxiliary guide wheel abrasion part and preparation method

A guide wheel and wear technology, applied in the field of materials, can solve the problems of poor bearing capacity of vulcanized rubber, difficult repair of cement track beams, and high strength of aluminum alloy supports, and achieves the effects of good flame retardant performance, low friction coefficient and low cost.

Active Publication Date: 2018-10-09
ZHUZHOU TIMES NEW MATERIALS TECH
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the application conditions of the auxiliary guide wheel, it is usually designed as an aluminum alloy support body. A single aluminum alloy support body has the following problems as an auxiliary guide wheel: on the one hand, the aluminum alloy support body has high strength, and it is easy to damage the cement track beam during long-term operation, while the cement track beam is easy to damage during long-term operation. The track beam is not easy to repair, and the running noise is loud; on the other hand, after the support body is worn out, it is complicated to replace and disassemble, and the maintenance cost is high
[0004] Thermoplastic materials are used in various industries due to their good processing performance, reusability, and low cost. However, pure resin materials cannot meet specific product performance requirements and generally need to be modified. However, most of the existing modified plastics are to improve thermoplasticity. A certain aspect of the performance of the material, such as flame retardancy or wear resistance, is rarely considered, and it has not been reported before that the modified thermoplastic material is used as the wear part of the guide wheel. The application in this area is more about the integration of rubber and metal hubs. The form of vulcanization molding, but the vulcanized rubber has poor bearing capacity, cannot be recycled, and the processing cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Auxiliary guide wheel abrasion part and preparation method
  • Auxiliary guide wheel abrasion part and preparation method
  • Auxiliary guide wheel abrasion part and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The modified thermoplastic material of the present embodiment includes the following components by weight:

[0051] 20 parts of TPU and 80 parts of POM,

[0052] 0.2 parts of antioxidant 1010 and 0.1 part of antioxidant 168,

[0053] 10 parts of antimony trioxide and 5 parts of decabromodiphenylethane,

[0054] 3 parts molybdenum disulfide,

[0055] 0.5 parts of carbon black, 0.2 parts of monocarbodiimide and 0.5 parts of 7# white oil.

[0056] Add all the materials into the blender and mix for 5 minutes, then granulate the mixed materials through a twin-screw extruder, the temperature of the barrel of the extruder is 170°C, and finally add the granulated modified TPU / POM composite material to the injection molding machine Inside the barrel, the temperature of the barrel is 190°C, and the auxiliary guide wheel wear parts are made by injection molding. The preparation process is as follows: figure 1 shown. Auxiliary guide wheel wear parts are 90° arc structure, such...

Embodiment 2

[0058] The modified thermoplastic material of the present embodiment includes the following components by weight:

[0059] 100 copies of TPEE,

[0060] 0.15 parts of antioxidant 1076 and 0.15 parts of antioxidant 168,

[0061] 5 parts of phosphorus nitrogen compounds, 5 parts of antimony trioxide and 2 parts of decabromodiphenylethane,

[0062] 5 parts polytetrafluoroethylene,

[0063] 0.2 parts of carbon black, 0.2 parts of 7# white oil and 0.5 parts of silicone powder (GM-100).

[0064] Add all the materials into the blender and mix for 8 minutes. The mixed materials are pelletized through the twin-screw extruder. The temperature of the barrel of the extruder is 220°C. Finally, the granulated modified TPEE composite material is added to the barrel of the injection molding machine. Inside, the temperature of the barrel is 235°C, and the auxiliary guide wheel wear parts are made by injection molding. The preparation process is as follows: figure 1 shown.

Embodiment 3

[0066] The modified thermoplastic material of the present embodiment includes the following components by weight:

[0067] 100 TPVs,

[0068] 0.2 part antioxidant 264,

[0069] 20 parts of phosphorus and nitrogen compounds,

[0070] 5 parts polytetrafluoroethylene and 2 parts molybdenum disulfide,

[0071] 0.5 parts of toner carbon black and 0.2 parts of 7# white oil.

[0072] Add all the materials into the blender and mix for 5 minutes, then pelletize the mixed materials through a twin-screw extruder, the temperature of the barrel of the extruder is 180°C, and finally add the granulated modified TPV composite material to the barrel of the injection molding machine Inside, the temperature of the barrel is 200°C, and the auxiliary guide wheel wear parts are made by injection molding. The preparation process is as follows: figure 1 shown.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an auxiliary guide wheel abrasion part which is prepared from modified thermoplastic materials by injection molding or compression molding. The modified thermoplastic materialscomprise, by weight, 100 parts of matrix resin, 0.1-0.5 part of antioxidants, 0.1-20 parts of fire retardants, 0.1-10 parts of abrasion-resistant agents and 0.1-3.5 pasts of additives. The auxiliaryguide wheel abrasion part is directly injected and molded without extruding and granulating, and modified additives are added by a master batch mode. The thermoplastic materials have a low friction coefficient and a flame-retardant function and are excellent in abrasion resistance and simple in manufacturing process. The prepared abrasion part wraps an outer ring of an aluminum alloy support, abrasion of the support and a cement track beam caused by direct contact between the support and the cement track beam can be avoided, and the running noise of a vehicle is low. The abrasion part is convenient to replace and low in cost, labor-hour consumption is reduced by 60%, the cost is reduced by 90%, and repair and maintenance cost can be effectively reduced.

Description

technical field [0001] The invention belongs to the field of materials, in particular to an auxiliary guide wheel wearing part and a preparation method. Background technique [0002] The straddle monorail transit system has become the preferred solution for urban rail transit due to its strong climbing ability, small turning radius, and low cost. The straddle-type monorail vehicle is guided by the guide wheels in the bogie system. In order to improve the anti-overturning stability of the vehicle, auxiliary guide wheels (or "safety wheels") are usually added outside the guide wheels. The diameter of the auxiliary guide wheels is compared to The diameter of the guide wheel is small, and the guide wheel and the track beam fit closely during normal driving, while there is a certain gap between the auxiliary guide wheel and the track beam. When the inflatable rubber guide wheel blows out, the auxiliary guide wheel can temporarily act as a guide. When the vehicle passes through a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L59/00C08L75/04C08K13/02C08K5/134C08K5/526C08K3/22C08L67/00C08L27/18C08L21/00C08L23/06C08L77/00B29D99/00
CPCB29D99/00C08L21/00C08L23/06C08L59/00C08L67/00C08L77/00C08L75/04C08K13/02C08K5/134C08K5/526C08K3/2279C08L27/18C08K5/1345C08K5/03
Inventor 夏利平许双喜郭正波姚峰杨丽博
Owner ZHUZHOU TIMES NEW MATERIALS TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap