Sealing ring suitable for shaft with high rotating speed and large run-out amount

A sealing ring and runout technology, which is applied to the sealing of the engine, engine components, mechanical equipment, etc., can solve the problem of low followability, achieve the effects of long product life, stable and reliable sealing, and improved followability

Inactive Publication Date: 2018-04-06
JIANGMEN XINHUI SEALING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design an improved axial sealing ring, which can be applied to occasions such as the output shaft of a motorcycle with high speed and large runout, so as to solve the technical problem that similar products in the prior art do not follow the shaft very well. , to obtain the technical effect of improving the sealing of the machine parts

Method used

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  • Sealing ring suitable for shaft with high rotating speed and large run-out amount
  • Sealing ring suitable for shaft with high rotating speed and large run-out amount
  • Sealing ring suitable for shaft with high rotating speed and large run-out amount

Examples

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no. 1 example

[0023] refer to figure 2 The schematic diagram of the first embodiment of the shaft sealing ring is shown, and the present invention proposes a shaft sealing ring suitable for high speed and large runout. The shaft sealing ring includes: an oil return line 110, which is arranged inside the lip 100 of the shaft sealing ring; a support part 200 with a "Z" shape structure connected to the lip 100 of the shaft sealing ring; a metal skeleton 300 , which is completely covered by the support part 200; and a radial force compensation spring 400, which is arranged outside the lip 100 of the shaft sealing ring.

[0024] In this embodiment, the metal skeleton 300 is at the end of the supporting part 200 away from the lip 100 . The supporting part 200 is made of elastic material. A pressure sensor 500 is disposed outside the support portion 200 . The pressure sensor 500 is connected to an external indicator light 600 . When the supporting part 200 falls off due to misalignment with t...

no. 2 example

[0026] refer to image 3 The schematic diagram of the second embodiment of the shaft sealing ring is shown, and the present invention proposes a shaft sealing ring suitable for high speed and large runout. The shaft sealing ring includes: an oil return line 110, which is arranged inside the lip 100 of the shaft sealing ring; a support part 200 with a "Z" shape structure connected to the lip 100 of the shaft sealing ring; a metal skeleton 300 , which is completely covered by the support part 200; and a radial force compensation spring 400, which is arranged outside the lip 100 of the shaft sealing ring.

[0027] In this embodiment, the metal skeleton 300 is at the end of the supporting part 200 away from the lip 100 . The supporting part 200 is made of elastic material. The aforementioned elastic material is preferably KFM rubber (fluororubber). Preferably, the cross-section of the metal skeleton is an "L"-shaped structure, so as to improve the followability of the lip 100 t...

no. 3 example

[0029] refer to Figure 4 The schematic diagram of the third embodiment of the shaft sealing ring is shown. The present invention proposes a shaft sealing ring suitable for high speed and large runout. The shaft sealing ring includes: an oil return line 110, which is arranged inside the lip 100 of the shaft sealing ring; a support part 200 with a "Z" shape structure connected to the lip 100 of the shaft sealing ring; a metal skeleton 300 , which is completely covered by the support part 200; and a radial force compensation spring 400, which is arranged outside the lip 100 of the shaft sealing ring.

[0030] In this embodiment, the metal skeleton 300 is at the end of the supporting part 200 away from the lip 100 . The supporting part 200 is made of elastic material. The aforementioned elastic material is preferably KFM rubber. A pressure sensor 500 is disposed outside the support portion 200 . The pressure sensor 500 is connected to an external indicator light 600 . When t...

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Abstract

The invention relates to a shaft sealing ring suitable for high speed and large runout, including an oil return line, which is arranged inside the lip of the shaft sealing ring; a support part with a "Z" shape structure, and the lip of the shaft sealing ring The metal skeleton is completely covered by the supporting part; and the radial force compensation spring is arranged outside the lip of the shaft sealing ring. The beneficial effects of the present invention are as follows: overcome the problems of the prior art, and creatively propose an improved shaft seal ring adapting to high speed and large runout; the shaft seal ring utilizes the high elasticity characteristic of the "Z" shape structure of the support part, greatly The followability of the lip to the shaft is improved, and runout compensation is performed through interference fit. On the one hand, it meets the requirements for stable and reliable sealing. On the other hand, the radial force is smaller than the traditional design that relies on large interference to compensate for runout. , so that the product life is longer.

Description

technical field [0001] The invention relates to a shaft seal ring suitable for high speed and large runout, which is suitable for high speed and large runout working conditions such as motorcycle output shafts. Background technique [0002] At present, the mainstream shaft seals on the market often use ordinary lip seals to maintain the seal of the lubricating oil in the box. This type of axial sealing ring is generally a V-shaped sealing ring, and its lip has good mobility and adaptability. Specifically, the lip of the sealing ring can compensate for large tolerances and angular deviations, thereby preventing the grease or oil inside the sealed parts from leaking out, and also preventing the intrusion of moisture or dust from the outside. [0003] However, because some models require a higher speed, and in the actual production process, due to poor assembly conditions or low machining accuracy, the performance of the seal will be greatly reduced. At high rpm, the rubber t...

Claims

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Application Information

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IPC IPC(8): F16J15/3232F16J15/3208F16J15/322F16J15/3252F16J15/3284
CPCF16J15/3232F16J15/3208F16J15/322F16J15/3252F16J15/3284
Inventor 章宏清
Owner JIANGMEN XINHUI SEALING TECH
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