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Structure-optimized compression-resistant wear-resistant polyurethane trundle and preparation method thereof

A technology of polyurethane and compounding method, which is applied in the direction of casters, wheels, transportation and packaging, etc., can solve the problems of inability to carry large weight, poor safety in use, simple structure, poor shock absorption effect, etc., achieve strong plasticity, prolong service life, Good wear resistance and strength effect

Pending Publication Date: 2021-04-30
永佳工业车辆(苏州)有限公司
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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 provide a structurally optimized pressure-resistant and wear-resistant polyurethane caster and its preparation method to solve the existing problems of poor shock absorption effect, inability to carry large weight, poor safety in use and simple structure

Method used

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  • Structure-optimized compression-resistant wear-resistant polyurethane trundle and preparation method thereof
  • Structure-optimized compression-resistant wear-resistant polyurethane trundle and preparation method thereof
  • Structure-optimized compression-resistant wear-resistant polyurethane trundle and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A method for preparing polyurethane according to the invention. The percentages of components contained in the polyurethane are 10-20% of low molecular weight polyether; 20-30% of toluene diisocyanate; 10-20% of trimethylol propane; and dimethylformamide Solvent 3-6%; phosphoric acid 5-6%; tertiary amine catalyst 1-3%; organic acid 1-3%; isocyanate 1-2%; active hydrogen 1-2% and organic silicon 3-5%.

[0030] Further, the percentage content of the components contained in the polyurethane is 15% of low molecular weight polyether; 20% of toluene diisocyanate; 15% of trimethylolpropane; 20% of dimethylformamide solvent; 20% of phosphoric acid; tertiary amine catalyst 2%; organic acid 2%; isocyanate 1.5%; active hydrogen 1.5% and silicone 3%.

[0031] Further, the preparation method of low-molecular-weight polyether and toluene diisocyanate is as follows: pour low-molecular-weight polyether into a three-necked flask, stir evenly, dehydrate in vacuum for 4 hours, and then sl...

Embodiment 2

[0038] see Figure 1-3As shown, a structurally optimized anti-compression and wear-resistant polyurethane caster includes a wheel body 100 and a connecting shock absorbing device 200. The wheel body 100 includes a fixed column 130 and a cardan shaft 140. The connecting shock absorbing device 200 includes a first push plate 240 and For the second push plate 250 , one side surfaces of the two first push plates 240 are connected to the outer surface of the cardan shaft 140 , and one side surfaces of the two second push plates 240 are connected to the outer surface of the fixed column 130 .

[0039] Further, the wheel body 100 also includes a wheel 110, a rotating shaft 120 and a connecting plate 150, the two wheels 110 are rotatably matched with the rotating shaft 120, one end of the fixing column 130 is welded to the outer surface of the rotating shaft 120, and the lower surface of the connecting plate 150 is connected to the outer surface of the rotating shaft 120. Connected to...

Embodiment 3

[0042] Aiming at the abrasion resistance effect and compression resistance effect of the polyurethane of the present invention, the polyurethane of the present invention is selected. Preferably, the percentages of the components contained in it are respectively 15% of low molecular weight polyether; 20% of toluene diisocyanate; 15% of trimethylolpropane; 20% of dimethylformamide solvent; 20% of phosphoric acid; 2% of tertiary amine catalyst; 2% of organic acid; 1.5% of isocyanate; It has better wear resistance and compression resistance, and has a stronger bearing capacity. At the same time, connecting the shock absorbing device 200 in a structurally optimized compressive and wear-resistant polyurethane caster of the present invention changes the original shock absorbing structure, and uses splints 210 to The parts of the wheel main body 100 are connected, and fastening rods 230 are used to fasten the clamping parts, so that the connection of each part is more stable, the compr...

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Abstract

The invention discloses a structure-optimized compression-resistant wear-resistant polyurethane trundle and a preparation method thereof, and relates to the technical field of mobile devices. The polyurethane comprises the following components in percentage by weight: 10-20% of low-molecular-weight polyether, 20 to 30% of toluene diisocynate; 10 to 20% of trimethylolpropane; 3-6% of a dimethyl formamide solvent; 5-6% of phosphoric acid; 1-3% of a tertiary amine catalyst; 1-3% of organic acid; 1 to 2% of isocyanate; 1-2% of active hydrogen and 3-5% of silicone; the structure-optimized compression-resistant and wear-resistant polyurethane trundle comprises a trundle body and a connecting damping device, the surfaces of one sides of two first push plates are connected with the outer surface of a universal shaft, and the surfaces of one sides of two second push plates are connected with the outer surface of a fixing column; and the polyurethane is wide in hardness range, high in strength and high in plasticity, when the polyurethane is applied to the trundle, the trundle has better wear resistance and strength, the service life of the trundle is greatly prolonged, the trundle suitable for different conditions can be produced by adjusting different formulas, the requirements of different users are met, and the trundle is worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of moving devices, in particular to a structure-optimized pressure-resistant and wear-resistant polyurethane caster and a preparation method thereof. Background technique [0002] Caster, also known as universal wheel, is a wheel that can rotate freely in the horizontal direction. It is widely used in many industries and various fields. It is also used in many daily necessities, which is convenient for the free movement of items and easy adjustment of direction. . [0003] The existing universal wheels are usually made of rubber, which do not have the function of compressive and wear resistance, and the shock absorption effect is poor. If the bearing weight is large, the wheel shaft may break, which is unsafe to use and has a simple structure. Therefore, We propose a structurally optimized anti-compression and wear-resistant polyurethane caster and a preparation method thereof. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L75/06C08L83/12C08G77/458B60B33/04
CPCC08L75/08C08G77/458B60B33/045C08L2205/02C08L2205/03
Inventor 江金火
Owner 永佳工业车辆(苏州)有限公司
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