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Free oiling and self-lubricating elevator guideway guide shoes and preparation method thereof

An elevator guide rail and self-lubricating technology, which is applied in the field of elevators, can solve problems such as dirty elevator rails and bridge compartments, shortened service life, and high operating noise, and achieves simple and easy preparation methods, long service life, and small friction coefficient Effect

Inactive Publication Date: 2009-02-04
郭自刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the basic material of the existing elevator guide rail guide shoes is flame-retardant plastic filled with nylon plastic. The guide shoes are noisy and easy to wear during the relative movement with the metal guide rail. In addition, regular refueling is required, which will easily cause the elevator track and the bridge compartment to fail. Clean, even make the sand particles adhere to the track, resulting in increased wear of the slider, increased running noise, and shortened service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The weight percent of each component in the raw material formula is as follows:

[0020] PTFE 75%

[0021] Carbon Fiber 18%

[0022] Bronze Powder 7%.

[0023] The steps of the manufacturing process are as follows: (1) preparing raw materials according to the formula; (2) placing the prepared raw materials on tooling molds; (3) die-casting; (4) testing surface hardness and smoothness; (5) vacuum insulation.

[0024] The die-casting process adopts 100kg / cm 2 Pressure compression molding.

[0025] The temperature of the vacuum insulation is 100° C., and the insulation time is 20 hours.

Embodiment 2

[0027] The weight percent of each component in the raw material formula is as follows:

[0028] PTFE 85%

[0029] Carbon Fiber 12%

[0030] Bronze powder 3%.

[0031] The steps of the manufacturing process are as follows: (1) preparing raw materials according to the formula; (2) placing the prepared raw materials on tooling molds; (3) die-casting; (4) testing surface hardness and smoothness; (5) vacuum insulation.

[0032] The die-casting process adopts 300kg / cm 2 Pressure compression molding.

[0033] The temperature of the vacuum insulation is 400° C., and the insulation time is 12 hours.

Embodiment 3

[0035] The weight percent of each component in the raw material formula is as follows:

[0036] PTFE 80%

[0037] Carbon Fiber 15%

[0038] Bronze powder 5%.

[0039] The steps of the manufacturing process are as follows: (1) preparing raw materials according to the formula; (2) placing the prepared raw materials on tooling molds; (3) die-casting; (4) testing surface hardness and smoothness; (5) vacuum insulation.

[0040] The die casting forming process adopts 200kg / cm 2 Pressure compression molding.

[0041] The temperature of the vacuum heat preservation is 200° C. to 300° C., and the heat preservation time is 15 to 18 hours.

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Abstract

The invention provides a nonoiling self-lubricating elevator guide shoe and a preparation method thereof. The raw material contains polytetrafluoroethylene, carbon fiber and bronze powder. The manufacturing process includes the following steps: (1) the materials are prepared in accordance with the formula; (2) the prepared materials are fed into industrial molds; (3) the materials are treated by die-casting forming; (4) surface hardness and smoothness are detected; (5) the materials are processed by vacuum insulation. The elevator guide shoe of the invention is manufactured adopting polytetrafluoroethylene, bronze powder and carbon fiber according to the proportion, the raw materials formula is reasonable, the preparation method is simple; compared with the prior guide shoes, the elevator guide shoe prepared with the method has the advantages of self lubrication without applying oil, low noise, good wear resistance, low friction coefficient, long service life, high strength and abrasion resistance, and the vibration in the running process of the elevator is reduced, and compared with the prior guide shoe slider, the service life of the product of the invention is prolonged by 6 to 8 times.

Description

technical field [0001] The invention belongs to the technical field of elevators, and more specifically relates to an oil-free self-lubricating elevator guide rail guide shoe and a preparation method thereof. Background technique [0002] At present, the basic material of the existing elevator guide rail guide shoes is flame-retardant plastic filled with nylon plastic. The guide shoes are noisy and easy to wear during the relative movement with the metal guide rail. In addition, regular refueling is required, which will easily cause the elevator track and the bridge compartment to fail. If it is clean, even the sand particles will adhere to the track, resulting in increased wear of the slider, increased operating noise, and shortened service life. Contents of the invention [0003] The purpose of the present invention is to provide a kind of oil-free self-lubricating elevator guide rail guide shoe and its preparation method. The guide shoe is made of new raw materials, whi...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08K7/06C08K3/08B66B7/04B66B7/02B29C70/40B29K27/18B29K307/04B29K305/10B29L31/00
Inventor 郭自刚
Owner 郭自刚
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