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Water pump shaft connecting bearing with sealing structure

A technology of sealing structure and water pump shaft, which is applied to the components of pumping devices for elastic fluid, pumps, pump components, etc., can solve the problem of bearing grease leakage, water ingress, easy wear, and practical effects of double-lip seal structure, etc. problems, to achieve the effect of reducing the wear rate of the bottom, preventing direct contact, and having a simple structure

Active Publication Date: 2014-02-05
浙江省新昌新轴实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the NBR sealing ring with a double-lip structure can meet the requirements, but in harsh working conditions, the inner lip of the impeller end sealing ring is easy to wear when in contact with dirt, resulting in grease leakage and water ingress in the bearing. Affects the service life of the shaft-connected bearing of the water pump, so the practicability of the ordinary double-lip seal structure is affected to a certain extent

Method used

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  • Water pump shaft connecting bearing with sealing structure
  • Water pump shaft connecting bearing with sealing structure
  • Water pump shaft connecting bearing with sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the water pump shaft-connected bearing with snap ring seal ring structure at the impeller end includes outer ring 1, shaft 2, rolling element 4, cage 3, double lip seal ring 5 and snap ring seal ring 6, etc., among which , the inner diameter of the outer ring 1 is provided with two outer raceways, the outer diameter of the shaft 2 is provided with two inner raceways corresponding to the outer raceways, and the cage 3 is installed between the outer ring 1 and the shaft 2 , the rolling element 4 is installed in the raceway between the outer ring 1 and the shaft 2 through the cage 3; the inner diameter of the outer ring 1 close to the flange end 21 is provided with a dust-proof sealing groove 11, and the dust-proof sealing groove 11 is located on the outer rolling The outer diameter of the double-lip sealing ring 5 is embedded in the above-mentioned dust-proof sealing groove 11, and the double lip on the inner diameter is in interference fit with...

Embodiment 2

[0032] Such as Figure 4 As shown, a shaft-connected bearing of a water pump with a composite seal structure at the impeller end, including an outer ring 1', a shaft 2', a rolling element 3', a cage 4', a double-lip seal ring 5' and belt Composite sealing structure 6' of the water throwing ring, etc., wherein, the inner diameter of the outer ring 1' is provided with two outer raceways, and the outer diameter of the shaft 2' is provided with two inner raceways corresponding to the outer raceways. The cage 4 is installed between the outer ring 1' and the shaft 2', and the rolling element 3' is installed in the raceway between the outer ring 1' and the shaft 2' through the cage 4'; the two inner diameters of the outer ring 1' Each side is provided with a dustproof sealing groove 11', and the dustproof sealing groove 11' is located on the outside of the two outer raceways of the outer ring 1'.

[0033] The structure and installation method of the above-mentioned double-lip seal r...

Embodiment 3

[0038] Such as Image 6 As shown, a shaft-connected bearing of a water pump with a composite seal structure at the impeller end, including an outer ring 1", a shaft 2", rolling elements 3", a cage 4", a double-lip seal ring 5" and a spinner Water ring 6" and so on, wherein, the inner diameter of the outer ring 1" is provided with two outer raceways, the outer diameter of the shaft 2" is provided with two inner raceways corresponding to the outer raceways, and the cage 4 "Installed between the outer ring 1" and the shaft 2", the rolling element 3" is installed in the raceway between the outer ring 1" and the shaft 2" through the cage 4"; both sides of the inner diameter of the outer ring 1" have a Dust-proof seal groove 11", the dust-proof seal groove 11" is located on the outside of the outer raceway; one end of the double-lip seal ring 5" is embedded in the dust-proof seal groove 11" of the outer ring 1", and the other end is connected to the shaft 2" interference fit; the s...

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Abstract

The invention discloses a water pump shaft connecting bearing with a sealing structure and belongs to the field of machinery. The water pump shaft connecting bearing comprises an outer ring, a shaft, a rolling body, a retaining frame, a double-lip seal ring and a sealing structure and the like. The rolling body is installed in a rolling path between the outer ring and the shaft through the retaining frame, the outer diameter of the double-lip seal ring is embedded in a dustproof sealing groove, double lips on the inner diameter are in interference fit with the shaft, the sealing structure is installed at the end of an impeller of the water pump shaft connecting bearing and located on the outer side of an outer rolling path, and the sealing structure is a clamping ring type seal ring or a compound sealing structure with a water throwing ring. Direct contact between dirt in the working environment and an inner lip of the seal ring is effectively avoided, the seal ring protection effect is achieved, and the abrasion speed of a lip on the inner side of the seal ring is reduced.

Description

technical field [0001] The invention relates to a shaft-connected bearing of a water pump with a sealing structure, which belongs to the field of machinery. Background technique [0002] The shaft-connected bearing of the water pump is actually a deformation of the shaft-connected bearing composed of two rows of deep groove ball bearings and bushings; The track is directly processed on the shaft, and the outer ring with double raceways, rolling elements, cages and sealing rings form a combination of shaft sleeves. Due to the special working environment, there are quite high requirements on the performance of the sealing ring of the shaft-connected bearing of the water pump: on the one hand, it is to prevent the grease inside the bearing from leaking out, and on the other hand, it is to prevent water from penetrating into the inside of the bearing. Under normal circumstances, the NBR sealing ring with a double-lip structure can meet the requirements, but in harsh working con...

Claims

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Application Information

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IPC IPC(8): F04D29/046F04D29/08
Inventor 尚方俊许雪飞庞启兴
Owner 浙江省新昌新轴实业有限公司
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