Differential friction plate for double-twisting machine and machining method of differential friction plate

A processing method and technology of double twisting machine, applied in friction linings, chemical instruments and methods, metal processing equipment, etc., can solve problems such as difficulty in guaranteeing friction performance and service life, and achieve small friction fluctuation, stable operation and excellent performance. The effect of friction properties

Inactive Publication Date: 2016-08-17
湖北三江航天江北机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this friction plate is not designed for double-twist machines, and it is difficult to guarantee the friction performance and service life under the condition of friction and slippage for a long time

Method used

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  • Differential friction plate for double-twisting machine and machining method of differential friction plate
  • Differential friction plate for double-twisting machine and machining method of differential friction plate
  • Differential friction plate for double-twisting machine and machining method of differential friction plate

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Experimental program
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Effect test

Embodiment 1

[0023] As shown in Table 1, the differential friction plate for double-twisting machine provided by the present invention is processed by the raw materials of the following mass fractions: polytetrafluoroethylene 50%, particle size 20 μm; tin bronze powder 45%, particle size 30 μm; carbon fiber 5%.

[0024] As shown in Table 2, the processing method of the differential gear friction plate for the above-mentioned double twisting machine comprises the following steps:

[0025] 1) Mixing: use a mixer to mix the raw materials evenly at 30°C;

[0026] 2) Compression: Put it into the mold and pressurize, the pressurization pressure is 30MPa, and the holding time is 30min;

[0027] 3) Sintering: put the molded modified PTFE billet into a high-temperature sintering furnace, sinter under circulating hot air, the heating rate is 20°C / min, and the temperature is raised to 300°C in the first stage (corresponding to the one-time heating in Table 2) , heat preservation for 0.5 hours (corr...

Embodiment 2～5

[0032] The raw materials that each embodiment adopts are as shown in table 1;

[0033] The processing steps of each embodiment using the corresponding raw materials in Table 1 are basically the same as that of Embodiment 1, the difference is the parameter index of each embodiment, as shown in Table 2.

[0034] See Table 3 for the properties of the friction plates prepared in each embodiment.

[0035] Table 1 Raw material composition

[0036]

[0037] Table 2 Processing step parameters

[0038]

[0039]

[0040] Table 3 product performance

[0041] index

[0042] In Table 3, the tension fluctuation is the output tension fluctuation of the differential of the double-twisting machine using the corresponding friction plate, and the service life is the time taken for the wear amount to reach 0.5mm in actual use, which is quantitative data.

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Abstract

The invention discloses a differential friction plate for a double-twisting machine and a machining method of the differential friction plate. The friction plate is mainly formed by machining and manufacturing the following raw materials including, by mass percent, 50%-80% of teflon, 15%-45% of tin bronze powder and 2%-6% of carbon fibers. The machining method includes the following steps that firstly, materials are mixed, wherein a material mixer is used for evenly mixing the raw materials; secondly, pressing is conducted, wherein the raw materials are put into a die to be pressurized, the pressurizing pressure ranges from 30 MPa to 80 MPa, and the pressure maintaining time ranges from 30 min to 100 min; thirdly, sintering is conducted, wherein a modified teflon blank formed in a die pressing manner is put into a high-temperature sintering furnace to be sintered; fourthly, machining is conducted, wherein machining is performed till the size and the shape which are required by the double-twisting machine are achieved; and fifthly, friction face running-in is conducted, wherein the friction plate is installed on a special tool, and mutual running-in is conducted on the friction plate and another running-in plate. The manufactured friction plate has an excellent friction characteristic and enough strength and can run stably in practical use, the friction force fluctuation is little, and the service life is long.

Description

technical field [0001] The invention relates to a friction plate, in particular to a differential gear friction plate for a double-twist machine and a processing method thereof. Background technique [0002] With the rapid development of steel wire rope production technology, the demand for production with double twist machines is increasing. Among them, when twisting the strands of the externally retractable double twister, the take-up speed of the take-up I-shaped wheel will follow the accumulation of the wire rope, and the line speed will become faster and faster under the condition of constant speed, which will no longer match the traction speed. , so it is necessary to adjust the speed through the differential device during the transmission process, and the friction plate is required to have a large friction coefficient and a stable working torque. [0003] Due to the poor working environment of the differential device, it is in the state of friction and slippage for a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02C09K3/14B22F1/00B22F5/00
CPCF16D69/02C09K3/149B22F5/00B22F2998/10B22F1/10B22F3/10B22F3/02
Inventor 任晗张文周萌胡江霞陈高
Owner 湖北三江航天江北机械工程有限公司
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