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Slewing bearing sealing ring and sealing ring material

A technology of slewing bearings and sealing rings, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of easy falling off, easy deformation, oil resistance, poor weather resistance, etc., achieve good sealing performance, prolong life, non-deformable effect

Pending Publication Date: 2020-10-16
MAANSHAN FY PRECISION MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing materials for slewing bearing sealing rings are made of nitrile rubber or silicone rubber-based rubber, and are equipped with PVC rubber-plastic blending materials, which have poor oil resistance and weather resistance.
Due to its single structure, the existing sealing ring has poor sealing effect and is easy to deform. After working for a period of time, the combination with the sealing part is loose, easy to fall off, and the service life is short

Method used

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  • Slewing bearing sealing ring and sealing ring material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 100 parts of polyolefin-based fluororubber, 2 parts of carbon fiber, and 0.5 parts of graphene were used to prepare the rubber sealing material through the plasticating process of the open mill, the mixing process of the internal mixer, the mixing process of the open mill and the vulcanization process. The carbon fiber has a diameter of 3 μm and an aspect ratio of 5.

[0017] The slewing bearing sealing ring is prepared from the above materials, which includes the sealing ring body 1, lip 2, waist 3, lip 4 and aramid fiber and polyimide fiber composite reinforcement line 5, the sealing ring body, waist and lip Integral connection, the upper and lower sides of the sealing ring body are fixed with three lips 2, the lip angle θ of the lip is 95°, and the lip angle β is 20°.

Embodiment 2

[0019] Put 100 parts of nitrosofluororubber, 40 parts of carbon fiber, 5 parts of graphene, 10 parts of vulcanizing agent and its auxiliary agent through the plasticating process of the open mill, the mixing process of the internal mixer, the mixing process of the open mill and the vulcanization process A rubber sealing material is prepared. The carbon fiber has a diameter of 20 μm and an aspect ratio of 100.

[0020] The slewing bearing sealing ring is prepared from the above materials, which includes the sealing ring body 1, the lip 2, the waist 3, the lip 4 and the polyimide fiber composite reinforcement line 5, the sealing ring body, the waist and the lip are integrally connected, and the sealing Three lips 2 are fixedly arranged on the upper and lower sides of the ring body, the lip angle θ of the lips is 150°, and the lip angle β is 70°.

Embodiment 3

[0022] Prepare 100 parts of tetrapropylene fluoride rubber, 10 parts of carbon fiber, 1 part of graphene, 1 part of vulcanizing agent and its auxiliary agent through the plasticating process of the open mill, the mixing process of the internal mixer, the mixing process of the open mill and the vulcanization process Remove the rubber seal material. The carbon fiber has a diameter of 5 μm and an aspect ratio of 10.

[0023] The above materials are used to prepare a slewing bearing sealing ring, which includes the sealing ring body 1, lip 2, waist 3, lip 4 and aramid fiber reinforcement line 5, the sealing ring body, waist and lip are integrally connected, and the sealing ring body is up and down The side is fixedly provided with three lip shapes 2, the lip angle θ of the lips is 105°, and the lip angle β is 20°.

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Abstract

The invention discloses a slewing bearing sealing ring material. The sealing material comprises the following components in parts by mass: 100 parts of fluororubber, 2-40 parts of carbon fibers, 0.5-5parts of graphene, and 0-10 parts of a vulcanizing agent and auxiliaries thereof. The rubber sealing material is prepared from the raw materials through an open mill plastication process, an internalmixer mixing process, an open mill mixing process and a vulcanization process. The invention further discloses a lip-shaped sealing ring made of the sealing material, the lip-shaped sealing ring comprises a sealing ring body, a waist part and a lip part, the sealing ring body, the waist part and the lip part are integrally connected, a plurality of barb parts are fixedly arranged on the upper side and the lower side of the sealing ring body, the sealing performance of a sealing piece can be improved, deformation is not likely to happen, and the service life of the sealing ring can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of slewing bearing seals, and in particular relates to a slewing bearing sealing ring and sealing ring material. Background technique [0002] The slewing ring is a large bearing with a special structure that can bear comprehensive loads such as large axial loads, radial loads, and overturning moments at the same time, and integrates multiple functions such as support, rotation, transmission, and fixation. It is composed of inner ring, outer ring, steel ball, roller, spacer block and sealing device. On the one hand, the sealing device is to prevent the filled grease from leaking out, and on the other hand, it is to prevent external dust, impurities and moisture from intruding into the bearing and affecting its normal operation. The sealing device of the slewing ring should have the function of preventing the grease leakage in the raceway and the water, dust and other foreign objects in the external environm...

Claims

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Application Information

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IPC IPC(8): C08L27/12C08L79/00C08L27/18C08L85/02C08L29/10C08K13/04C08K7/06C08K3/04F16J15/3232F16J15/3284
CPCC08K7/06C08K13/04C08L27/12C08L27/18C08L29/10C08L79/00C08L85/02C08L2205/02C08K3/042F16J15/3232F16J15/3284
Inventor 鲍和鹏戴永奋王景龙陈武吴芳
Owner MAANSHAN FY PRECISION MACHINERY CO LTD