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Self-lubricating coating for gear rack surfaces

A self-lubricating coating and rack technology, applied in the field of racks and gears, to achieve the effect of self-lubricating efficiency, simple design, and high application value

Inactive Publication Date: 2017-11-17
TAICANG BAODA RACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to improve the cooperative transmission performance of the gear and the rack, it is often directly injected with lubricating oil or coated with lubricating grease, and the effect is better. However, the obvious disadvantage is that the lubricating oil or lubricating grease must be used before Refill or coat for continued lubricating performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A self-lubricating coating on the surface of a rack, comprising the following components by weight:

[0023] Solvent 25 parts

[0024] 20 parts urea-formaldehyde resin

[0025] 12 parts epoxy resin

[0026] 6 parts phenolic resin

[0027] Alcohol-soluble polyamide 12 parts

[0028] Rosin 10 parts

[0029] graphite powder 5 parts

[0030] 5.5 parts of silane coupling agent;

[0031] Described silane coupling agent is γ-aminopropyltriethoxysilane, and described solvent is the mixture of ethanol and Virahol, and the weight ratio of described ethanol and Virahol is 3:1, and described phenolic resin is A mixture of thermoplastic phenolic resin and thermosetting phenolic resin, wherein the weight ratio of thermoplastic phenolic resin to thermosetting phenolic resin is 15:1. The obtained self-lubricating coating has excellent performance on the surface of the metal rack, comparable to grease.

Embodiment 2

[0033] A self-lubricating coating on the surface of a rack, comprising the following components by weight:

[0034] 30 parts of solvent

[0035] Urea-formaldehyde resin 15 parts

[0036] 5 parts epoxy resin

[0037] 21 parts of phenolic resin

[0038] 3 parts alcohol soluble polyamide

[0039] Rosin 3 parts

[0040] 3.5 parts of graphite powder

[0041] 16 parts of silane coupling agent;

[0042] Described silane coupling agent is gamma-chloropropyltriethoxysilane, and described solvent is the mixture of ethanol and Virahol, and the weight ratio of described ethanol and Virahol is 2:1, and described phenolic resin is A mixture of thermoplastic phenolic resin and thermosetting phenolic resin, wherein the weight ratio of thermoplastic phenolic resin to thermosetting phenolic resin is 10:1. The obtained self-lubricating coating has excellent performance on the surface of the metal rack, comparable to grease.

Embodiment 3

[0044] A self-lubricating coating on the surface of a rack, comprising the following components by weight:

[0045] Solvent 27 parts

[0046] 16 parts urea-formaldehyde resin

[0047] 15 parts epoxy resin

[0048] 12 parts phenolic resin

[0049] Alcohol-soluble polyamide 9 parts

[0050] Rosin 7 parts

[0051] graphite powder 2 parts

[0052] 5 parts of silane coupling agent;

[0053] Described silane coupling agent is vinyltriethoxysilane, and described solvent is the mixture of ethanol and Virahol, and the weight ratio of described ethanol and Virahol is 5:1, and described phenolic resin is thermoplastic phenolic resin and thermosetting phenolic resin, wherein the weight ratio of thermoplastic phenolic resin to thermosetting phenolic resin is 5:1. The obtained self-lubricating coating has excellent performance on the surface of the metal rack, comparable to grease.

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PUM

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Abstract

The invention discloses a self-lubricating coating for gear rack surfaces. The coating comprises the following components in parts by weight: 25-30 parts of a solvent, 15-20 parts of urea-formaldehyde resin, 5-15 parts of epoxy resin, 6-21 parts of phenolic resin, 3-12 parts of alcohol-soluble polyamide, 3-10 parts of rosin, 2-5 parts of graphite powder, and 5-16 parts of a silane coupling agent. According to the invention, the coating is simple in design, but high in efficiency, and suitable for metal gear racks, and has relatively-high application values.

Description

technical field [0001] The invention relates to the field of gears and racks, in particular to a self-lubricating coating on the surface of a rack. Background technique [0002] The rack is a flat plate or a straight rod with a series of equidistantly distributed teeth. The rack is also divided into a straight rack and a helical rack, which are paired with a spur gear and a helical gear respectively. Through the combination of gear transmission and rack transmission, especially when it involves linear transmission, the transmission mode of rack and pinion is often used, which has the advantages of stable transportation, accurate step distance and load capacity. In order to prevent the wear, pitting and gluing of racks and gears and improve their service life, the lubrication of racks and gears is particularly important. [0003] In the prior art, in order to improve the cooperative transmission performance of the gear and the rack, it is often directly injected with lubrica...

Claims

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Application Information

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IPC IPC(8): C10M167/00C10N30/06C10N40/04
CPCC10M167/00C10M2201/041C10M2207/021C10M2207/20C10M2209/101C10M2217/042C10M2217/044C10M2227/04C10N2030/06C10N2040/04
Inventor 柳国豪
Owner TAICANG BAODA RACK
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