IUI main oil seal oil cylinder sealing element and machining process thereof

A technology of oil cylinder sealing and processing technology, which is applied in the direction of engine sealing, household components, engine components, etc. It can solve the problems of narrow working slope, low elastic compression performance, and low compression resistance performance, so as to improve the compression resistance performance and improve the overall elastic compression performance sexual effect

Pending Publication Date: 2022-04-01
GUANGZHOU CITY BANSHANG RUBBER PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of society, the application of engineering equipment is becoming more and more extensive, and the hydraulic system is a very important part of construction machinery. Sometimes the hydraulic system will work in harsh environments for a long time, and the main hydraulic sealing system has to bear The pressure and vibration impact will change according to the environment. The main oil seal of the existing hydraulic cylinder mostly adopts the IUIS type seal. ; The existing IUIS type seal has a small height difference between the inner and outer lips and the gap, which is prone to leakage in harsh environments; Overall low elasticity

Method used

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  • IUI main oil seal oil cylinder sealing element and machining process thereof
  • IUI main oil seal oil cylinder sealing element and machining process thereof
  • IUI main oil seal oil cylinder sealing element and machining process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The processing technology of the IUI main oil seal oil cylinder seal includes step 1, raw material selection; step 2, raw material mixing; step 3, injection molding; step 4, trimming and chamfering; step 5, inspection and packaging;

[0033] Wherein in the above-mentioned step one, according to the weight percentage of each component is respectively: 100 parts of modified TPU, 3 parts of tackifier, 3 parts of layered silicate powder, 3 parts of mold release agent and 3 parts Parts of color masterbatch for selection;

[0034] Wherein in the above step 2, all the raw materials in the step 1 are taken, and they are sequentially added to the mixer for uniform mixing to obtain a mixture, wherein the mixing speed of the mixer is 50-80rpm, and the stirring time is 8-10min;

[0035] Wherein the above-mentioned step three includes the following steps:

[0036] 1) First, preheat the screw injection molding machine until it reaches 130-160°C;

[0037] 2) Take the mixture obtaine...

Embodiment 2

[0043] The processing technology of IUI main oil seal oil cylinder seal includes step 1, raw material selection; step 2, raw material mixing; step 3, making barrel; step 4, turning processing; step 5, checking packaging;

[0044] Wherein in the above-mentioned step one, according to the weight percentage of each component is respectively: 100 parts of modified TPU, 3 parts of tackifier, 3 parts of layered silicate powder, 3 parts of mold release agent and 3 parts Parts of color masterbatch for selection;

[0045] Wherein in the above step 2, all the raw materials in the step 1 are taken, and they are sequentially added to the mixer for uniform mixing to obtain a mixture, wherein the mixing speed of the mixer is 50-80rpm, and the stirring time is 8-10min;

[0046] Wherein the above-mentioned step three includes the following steps:

[0047] 1) First, preheat the screw injection molding machine until it reaches 130-160°C;

[0048] 2) Take the mixture obtained in step 2, add it...

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Abstract

The IUI main oil seal oil cylinder sealing element comprises a sealing element body, an inner lip, an outer lip, an oil discharging groove, an outer root, an inner root and a pressure groove, and the machining technology comprises the steps that firstly, raw materials are selected; 2, mixing the raw materials; step 3, injection molding; step 4, trimming and chamfering; step 5, checking and packaging; an inner lip is arranged on the inner wall of the top end of the sealing element body, the chamfer angle of the inner lip is 30 degrees, a pressure groove is formed in the outer wall of the top end of the sealing element body, and the outer side of the pressure groove is higher than the inner side of the pressure groove. The compression resistance of the product is improved; by increasing the height difference and the gap between the inner lip and the outer lip, a product can be sealed in a more hostile environment; by enlarging and deepening the pressure grooves and increasing the supporting faces of the inner root and the outer root, the overall elastic pressing performance of the product is improved.

Description

technical field [0001] The invention relates to the technical field of seals, in particular to an IUI main oil seal oil cylinder seal and a processing technology thereof. Background technique [0002] With the continuous development of society, the application of engineering equipment is becoming more and more extensive, and the hydraulic system is a very important part of construction machinery. Sometimes the hydraulic system will work in harsh environments for a long time, and the main hydraulic sealing system has to bear The pressure and vibration impact will change according to the environment. The main oil seal of the existing hydraulic cylinder mostly adopts the IUIS type seal. ; The existing IUIS type seal has a small height difference between the inner and outer lips and the gap, which is prone to leakage in harsh environments; The overall elasticity is low. Contents of the invention [0003] The object of the present invention is to provide an IUI main oil seal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/3232B29C45/00B29L31/26
Inventor 孙兆全
Owner GUANGZHOU CITY BANSHANG RUBBER PROD CO LTD
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