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Sealing assembly for universal joint for crossed shaft type universal shaft coupler

A technology for universal couplings and sealing components, which is applied in the direction of couplings, elastic couplings, mechanical equipment, etc., and can solve problems such as increased friction, increased sealing temperature, and vicious cycle at the lip

Inactive Publication Date: 2015-01-28
HENAN SANWEI HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the lip on the above-mentioned sealing body faces the inner ring of the needle bearing, the grease is thrown towards the bearing sleeve under the action of centrifugal force during the working process, and the lip of the inner ring lacks lubrication, and the friction force increases. Due to the friction, the sealing temperature rises , the lip part of the inner ring shrinks when heated, and the friction force is greater, resulting in a vicious cycle of the lip part

Method used

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  • Sealing assembly for universal joint for crossed shaft type universal shaft coupler
  • Sealing assembly for universal joint for crossed shaft type universal shaft coupler
  • Sealing assembly for universal joint for crossed shaft type universal shaft coupler

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Embodiment Construction

[0018] The technical solution of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0019] Such as figure 1 , 2 , 3, the sealing assembly for the universal joint of the cross-shaft universal joint, which includes a seal 1 and a seal seat 2, the outer side of the seal is provided with a main seal lip 3 and a secondary seal lip inclined relative to the seal Port 5, the two sealing lips are inclined toward the left end face of the seal, the auxiliary sealing lip is located at the edge of the seal, the main sealing lip is at an angle of 40°-50° to the axial direction of the seal, and the auxiliary sealing lip It is at an angle of 25°~30° to the axial direction of the seal, and a U-shaped cavity 4 is formed between the main sealing lip and the auxiliary sealing lip. The thickness of the main sealing lip is 0.8-1.5mm, and the thickness of the auxiliary sealing lip is 80% of the thickness of the main sealin...

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Abstract

The invention discloses a sealing assembly for a universal joint for a crossed shaft type universal shaft coupler. The sealing assembly comprises a sealing element and a sealing seat, wherein the outer side of the sealing element is provided with a main sealing lip and a sub sealing lip which are inclined relative to the sealing element, the two sealing lips are respectively inclined in a direction towards the end part of the opening end of a bearing sleeve, the main sealing lip forms an angle being 40 degrees to 50 degrees with the axial direction of the sealing element, the sub sealing lip forms an angle being 25 degrees to 30 degrees with the axial direction of the sealing element, a U-shaped cavity is formed between the main sealing lip and the sub sealing lip, the thickness of the main sealing lip is 0.8 to 1.5mm, the thickness of the sub sealing lip is 80 percent of the thickness of the main sealing lip, the outer side of the sealing seat is provided with an annular groove, the depth of the annular groove is 4 to 4.5mm, the pre-tightening quantity being 0.1 to 0.2mm is realized between the width of the annular groove and the width of the sealing element, and the sealing element is arranged on the sealing seat through the annular groove formed in the sealing seat. The sealing assembly has the advantages that the sufficient lubrication of a sealing lip part can be realized, the abrasion can be reduced, and the in-site construction condition of the universal joint can be met.

Description

technical field [0001] The invention belongs to the technical field of shaft couplings, in particular to a sealing assembly for a universal joint of a cross-shaft universal coupling. Background technique [0002] The cross-shaft universal coupling is the most commonly used coupling. Using its structural characteristics, it can make two shafts that are not on the same axis or have a large bending angle or a large axial movement continue to rotate at the same angular speed, and it is reliable. transmit torque and motion. At present, it has been widely used in metallurgy, lifting, engineering transportation, mining, petroleum, shipbuilding, coal, rubber, papermaking machinery and other heavy machinery industries to transmit torque in mechanical shafting. [0003] In the traditional cross-shaft universal joint, the universal joint includes a cross shaft, and a needle bearing is installed on the journal of the cross shaft. The needle bearing includes a bearing sleeve and a needl...

Claims

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Application Information

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IPC IPC(8): F16D3/84F16D3/16
Inventor 贺东峰侯文涵陈岩松
Owner HENAN SANWEI HEAVY IND
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