Anti-stretch wind power slewing bearing rubber sealing ring

A rubber sealing ring and slewing support technology, which is applied in the direction of coating, other chemical processes, chemical instruments and methods, etc., can solve the problems of bearing wear, reducing the life of the sealing ring, and high cost, so as to improve the service life, reduce the force, The effect of improving the performance of the external stretch

Pending Publication Date: 2019-10-22
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bearing manufacturers also try to increase the service life of bearings by changing the bearing structure, and the corresponding sealing ring structure also needs to be changed, but this method is costly
[0004] In addition, with the development of the wind power industry, from the original kilowatt level to the megawatt level, the size of the bearing is getting bigger and bigger, and the pressure bearing capacity of the sealing ring is getting higher and higher. As the rubber used for yaw bearings and pitch bearings The sealing rings are of pure rubber structure without skeleton reinforcement. Rubber is an elastic body and can be stretched by 30%-200%. There is stretching during the installation process, which is not easy to find after installation. If the sealing ring is under stress after installation State, will greatly reduce the life of the sealing ring, resulting in grease leakage, bearing wear and other problems

Method used

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  • Anti-stretch wind power slewing bearing rubber sealing ring
  • Anti-stretch wind power slewing bearing rubber sealing ring
  • Anti-stretch wind power slewing bearing rubber sealing ring

Examples

Experimental program
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Embodiment Construction

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, a rubber sealing ring for a stretch-resistant wind power slewing support, the rubber sealing ring includes a fiber skeleton and a rubber body, the fiber skeleton is set through the rubber body, and the fiber skeleton is aramid thread, vinylon thread, polyester One of the ester threads, the rubber body is nitrile rubber.

[0020] Table 1 lists the performance indicators of several fiber lines

[0021] Table 1 Fiber skeleton performance index

[0022]

[0023] Table 2 lists the application performance indicators of several fiber lines

[0024] Table 2 Example

[0025]

[0026]

[0027] The production method of the rubber sealing ring is as follows: the extruder adopts For extrusion, the length-to-length ratio is 1:20, the temperature of the screw is 55°C, the temperature of barrel 1 is 60°C, the ...

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Abstract

The invention discloses an anti-stretch wind power slewing bearing rubber sealing ring, which comprises a fiber skeleton and a rubber body, wherein the fiber skeleton is arranged in the rubber body ina penetrating manner, the fiber skeleton is one selected from an aramid wire, a vinylon wire and a polyester wire, and the rubber body is made of nitrile butadiene rubber. According to the present invention, the fiber skeleton is fixed at the specific position in the rubber by using the pre-molding process so as to fix the position of the skeleton; and under the premise of no change of the size of the product, by adding the fiber skeleton, the external-stretching resistance of the product is increased, the force applied during the installing is reduced, and the service life of the sealing ring is prolonged.

Description

technical field [0001] The invention belongs to the field of rubber seals, in particular to a rubber seal ring for a stretch-resistant wind power slewing support. Background technique [0002] In the wind power industry, the service life of the yaw and pitch bearings directly affects the power generation efficiency of the whole machine. Since the yaw and pitch bearings are located at high altitudes, it is difficult to replace them on site, and the labor cost is high. Grease leakage caused by the failure of the sealing ring Greatly increased the fan operation and maintenance costs. [0003] In order to improve the service life of the bearing and reduce the frequency of replacing the sealing ring, the sealing manufacturer has conducted research on the material of the sealing ring, improving the properties of the material such as ozone resistance, UV resistance, 100% constant elongation strength, hardness, etc., and by adding specific materials To reduce the friction coefficie...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L67/00C08L29/14C08L77/10C09K3/10B29C48/154
CPCC08L9/02C09K3/10B29C48/154C08L2205/16C08L67/00C08L29/14C08L77/10
Inventor郑兆杰王亮燕童建军周慧张秀娥
OwnerNANJING ORIENTLEADER TECH CO LTD