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Machining process of wind power bearing sealing rubber strip

A technology of bearing sealing and processing technology, which is applied in the field of vulcanization molding processing technology, can solve the problems that the density of the rubber strip cannot meet the requirements, cannot fully meet the product use requirements, and poor quality stability, so as to meet the requirements of density, compression performance and Improve wear resistance, meet the effect of uniformity and consistency

Active Publication Date: 2011-09-14
常州市中昊轨道交通科技发展有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0008] To sum up, the previous processing technology is extrusion molding. Due to the defects of the process itself, it cannot fully meet the requirements of the product.
The main defects of the extrusion process are: the pressure at the die is small and fluctuates greatly, and the pressure-holding effect is poor, resulting in that the density of the rubber strip cannot meet the requirements and fluctuates greatly; during processing, the factors affected by the operation are large, and the quality stability is relatively low. Difference

Method used

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  • Machining process of wind power bearing sealing rubber strip
  • Machining process of wind power bearing sealing rubber strip

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Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0024] A processing technology for wind power bearing sealing strips, the material is oil-resistant and weather-resistant rubber, the hardness of the rubber is 70~75°Shore A, the process steps are as follows:

[0025] a. Filter the mixed rubber material with a filter to ensure that the rubber material is free of impurities;

[0026] b. Preform the rubber material with the mouth of the extruder to ensure the size of the rubber material so as to meet its weight requirements;

[0027] c. Preheat the preformed mixed rubber to increase its fluidity;

[0028] d. Draw the preformed rubber to each cavity with a jig and place it neatly;

[0029] e. Close the mold and start vulcanization molding;

[0030] f. Trim the vulcanized and formed product, remove the burr to make a wind power bearing sealing strip that meets the assembly requirements.

[003...

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Abstract

The invention discloses a machining process of a wind power bearing sealing rubber strip, which is made of oil and weathering ageing resistant rubber. The machining process comprises the following steps of: filtering mixing rubber materials by using a filter screen and ensuring that the rubber materials are free of impurities; matching mouthpieces by using an extruder so as to pre-form the rubbermaterials and ensuring the sizes of the rubber materials so as to satisfy the weight requirement; preheating the pre-formed mixing rubber materials so as to increase the fluidity; dragging the pre-formed rubber materials to each die cavity by using a fixture and putting neatly; carrying out die assembly and vulcanization molding; and trimming the vulcanization molded products and removing the rough edges so as to obtain the wind power bearing sealing rubber strip which satisfies the assembling requirement. Through the invention, the quality of the sealing rubber strip can be improved and the quality stability can be ensured.

Description

technical field [0001] The invention relates to a vulcanization molding processing technology, in particular to a processing technology of a wind power bearing sealing rubber strip. Background technique [0002] At present, wind power bearing sealing strips are widely used in wind power main engine yaw bearings and pitch bearings, and play a sealing role in key parts. Whether it is yaw or pitch, the following requirements need to be met: [0003] ① There is a certain pressure on the lubricating grease inside the bearing, which requires a certain strength and stiffness for the key lip part of the sealing strip. [0004] ②The fan rotates with the wind direction at high altitude, and the blades will rotate continuously as long as the wind force permits, which requires the sealing strip to have considerable wear resistance. [0005] ③ After the sealing strip is embedded in the sealing position of the bearing, it has been working in a compressed state, which requires that the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/00B29K21/00B29L31/26
Inventor 陈春高顾小峰吴坤进
Owner 常州市中昊轨道交通科技发展有限公司
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