High-temperature-resistant robot crawler and preparation method thereof

A robot and high-temperature-resistant technology, applied in the field of robot crawler and its preparation, can solve the problems that excellent performance cannot be maintained at high temperature, limit the scope of robot use, etc., and achieve the effect of reducing the weight of the crawler and improving the heat-resistant deformation performance.

Inactive Publication Date: 2015-12-09
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the excellent properties of polyurethane elastomers at room temperature cannot be maintained at high temperatures, which limits the scope of use of robots, the development of high-temperature-resistant special polyurethane elastomer robot crawlers has increasingly become a frontier issue in robot crawler research.

Method used

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  • High-temperature-resistant robot crawler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Preparation of prepolymer

[0037] After drying and pulverizing 6g of methyl vinyl silicone rubber, mix it with 100g of PCL2000, add 10g of trimer isocyanurate modifier, and use a heat shearing machine at a temperature of 40-50°C at 3000-4000r / min speed heat shearing for 10-15min to form a homogeneous phase, then stir and dehydrate at 90-120°C and 0.096-0.097MPa vacuum for 2-3h, cool to about 60°C, and quickly mix with 19g of PAPI and 0.5g of triethylene glycol Mix base diamine, react for 2-3 hours under the protection of nitrogen, and obtain polyurethane prepolymer after vacuum degassing.

[0038] (2) Manufacture of heat-resistant robot crawlers

[0039] Wrap 15g of aramid fibers whose surface is activated with a silane coupling agent in the form of an endless rope and wind them on the mold, then weigh the measured prepolymer, heat it up, and vacuum defoam it for about 2 minutes. Add 5g of molybdenum disulfide treated with silane coupling agent into the prepolym...

Embodiment 2

[0041] (1) Preparation of prepolymer

[0042] After drying and pulverizing 8g of methyl vinyl silicone rubber, mix it with 100g of PCL2000, add 14g of trimer isocyanurate modifier, and use a heat shearing machine at a temperature of 40-50°C at 3000-4000r / min speed heat shearing for 10-15min to form a homogeneous phase, then stir and dehydrate at 90-120°C and 0.096-0.097MPa vacuum for 2-3h, cool to about 60°C, and quickly mix with 19g of PAPI and 0.5g of triethylene glycol Mix base diamine, react for 2-3 hours under the protection of nitrogen, and obtain polyurethane prepolymer after vacuum degassing.

[0043] (2) Manufacture of heat-resistant robot crawlers

[0044] Same as Example 1

Embodiment 3

[0046] (1) Preparation of prepolymer

[0047] After drying and pulverizing 10g of methyl vinyl silicone rubber, mix it with 100g of PCL2000, add 18g of trimer isocyanurate modifier, and use a thermal shear at 3000-4000r at a temperature of 40-50°C. / min speed heat shearing for 10-15min to form a homogeneous phase, then stir and dehydrate at 90-120°C and 0.096-0.097MPa vacuum for 2-3h, cool to about 60°C, and quickly mix with 19g of PAPI and 0.5g of triethylene glycol Mix base diamine, react for 2-3 hours under the protection of nitrogen, and obtain polyurethane prepolymer after vacuum degassing.

[0048] (2) Manufacture of heat-resistant robot crawlers

[0049] Same as Example 1

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Abstract

The invention discloses a high-temperature-resistant robot crawler and a preparation method thereof and relates to a robot crawler and a preparation method. The crawler is made of the following components in parts by weight: 100 parts of polymer polyol with number-average molecular weight of 1000 to 3000, 18 to 22 parts of polyisocyanate, 0.2 to 0.4 part of catalyst, 5 to 15 parts of chain extender, 5 to 10 parts of heat-resistant agent, 3 to 8 parts of antioxidant and 5 to 10 parts of modifier. The invention adopts regular polyester polyol with good symmetry, higher degree of functionality and high content of benzene ring and isocyanate as raw materials, uses the larger steric hindrance of ring bodies to obstruct the relative movement of molecule chain segments during heating and separates soft chain segment zones and hard chain segment zones of a polyurethane elastomer, and remarkably improves the heat-resistant deformation performance of the polyurethane elastomer.

Description

technical field [0001] The invention relates to a robot crawler and a preparation method thereof, in particular to a high temperature resistant robot crawler and a preparation method thereof. Background technique [0002] Today's mobile robots have been widely used in various fields, including anti-terrorism and anti-riot, emergency rescue, polar detection, power facility inspection and maintenance, and nuclear radiation detection, etc. Mobile robots must often work in various complex extreme environments (high and low temperature, , ultra-high pressure, nuclear radiation, etc.) and various terrains (soft and hard ground, tidal flats, grass, trenches, etc.). It is required to have good adaptability and flexibility to overcome the instability of the environment, and the walking mechanism of the robot is a necessary guarantee. As an important main walking part of the robot, the performance of the crawler has a crucial impact on the mobile robot. The material, structure and mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/79C08G18/66C08G18/42C08G18/10C08L75/06
CPCC08G18/10C08G18/4277C08G18/664C08G18/791C08L75/06C08L2201/08C08G18/3215
Inventor 葛铁军王佳肖尚雄刘浪张瑾
Owner SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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