CN203560138U - Water pump shaft bearing provided with double seal structures - Google Patents
Water pump shaft bearing provided with double seal structures Download PDFInfo
- Publication number
- CN203560138U CN203560138U CN201320654527.7U CN201320654527U CN203560138U CN 203560138 U CN203560138 U CN 203560138U CN 201320654527 U CN201320654527 U CN 201320654527U CN 203560138 U CN203560138 U CN 203560138U
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- CN
- China
- Prior art keywords
- ring
- seal
- axle
- groove
- water pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 229920006503 PA66-GF25 Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 229960001484 edetic acid Drugs 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The utility model discloses a water pump shaft bearing provided with double seal structures, and belongs to the machinery field. The water pump shaft bearing comprises an outer ring, a shaft, rollers, retainers, seal rings, a thrower ring and the like, wherein the rollers are mounted in a roller path between the outer ring and the shaft through the retainers; a dustproof sealing groove is formed in each of two sides of the inner diameter of the outer ring; one end of each seal ring is embedded into the dustproof sealing groove, and the other ends of the seal rings are in interference fit with the shaft; a groove is further formed in the shaft and located on the outer side of the seal ring at an impeller end; and the inner diameter of the thrower ring is fixedly mounted in the groove, and a gap is reserved between the outer diameter of the thrower ring and the inner diameter of the outer ring. The water pump shaft bearing is simple in structure and convenient to assemble and has excellent sealing property, direct contact between dirt in the working environment and a lip of the inner seal ring can be effectively prevented, and a good protection effect on the seal rings is realized; and the wear rates of inner lips of the sealing rings are reduced, and a dynamitic sealing effect on water throwing is realized simultaneously.
Description
Technical field
A kind of water pump shaft connecting bearings with double-layer sealing structure of the utility model, belongs to mechanical field.
Background technique
Water pump shaft connecting bearings is actually a kind of distortion of the Bearing with multiple rows of balls of two row deep groove ball bearings and axle sleeve composition; Feature is: designs simplification two raceway shaft connecting bearings, there is no the inside race of general bearing, two raceways are directly processed on axle, and outer collar, rolling element, retainer and the seal ring with two raceways form the assemblying body of axle sleeve.Due to special working environment, the seal ring performance of water pump shaft connecting bearings is proposed to quite high requirement: on the one hand for the grease that prevents bearing inside is toward external leakage, inner for preventing that the water of water tank from infiltrating bearing on the other hand.Generally, the nitrile rubber seal ring of lips structure just can meet the demands, but in severe work condition environment, impeller end seal ring epipharynx contacts easily wearing and tearing with foul, cause bearing that fat and flooded condition occur to leak, and affect working life of water pump shaft connecting bearings, so the practicability of individual layer sealing configuration is affected to a certain extent.
Summary of the invention
In order to solve the problems of the technologies described above; the purpose of this utility model is to provide a kind of impeller end with the water pump shaft connecting bearings of the double-layer sealing structure of slinger ring and seal ring; can protect internal layer seal ring; play again water dumping dynamic sealing action, there is good seal performance, the advantage such as simple in structure, easy to assembly.
The technical solution of the utility model is:
A kind of water pump shaft connecting bearings with double-layer sealing structure, comprise outer ring, axle, rolling element, retainer, seal ring and slinger ring etc., wherein, on the internal diameter of described outer ring, establish two outer raceways, the external diameter of described axle is provided with two interior raceways corresponding with outer raceway, retainer is arranged between outer ring and axle, and rolling element is arranged in the raceway between outer ring and axle by retainer; The both sides of described outer ring internal diameter are equipped with a dust sealing groove, and dust sealing groove is positioned at the outside of outer raceway; Described seal ring one end embeds in the dust sealing groove of above-mentioned outer ring, the other end and axle interference fit; On described axle, be further provided with a groove, this groove is located at the outside of impeller end seal ring, and the internal diameter of described slinger ring is fixedly mounted in above-mentioned groove, and external diameter and outer ring internal diameter leave gap.
Above-mentioned seal ring comprises O-ring seal and skeleton, and wherein, described skeleton cross section is L shaped, and O-ring seal is wrapped on the two ends and outer surface of skeleton; Described O-ring seal comprises 2 lips, and seal ring one end is embedded in dust sealing groove by the O-ring seal peace being wrapped on skeleton, and the other end is by 2 lips and axle interference fit.
Above-mentioned slinger ring comprises O-ring seal and skeleton, and wherein, described skeleton cross section is L shaped, and O-ring seal is wrapped on the two ends and outer surface of skeleton; The internal diameter of described O-ring seal is provided with a lip, and slinger ring internal diameter is arranged in the groove of axle by the lip interference fit on O-ring seal.
Above-mentioned O-ring seal adopts nitrile rubber material, and skeleton adopts No. 10 steel plates.
Described rolling element adopts GCr15 material steel ball or roller; Described outer ring and axle adopt GCr15 material; Described retainer adopts PA66-GF25 material.
The utlity model has positive effect: the above-mentioned water pump shaft connecting bearings with double-layer sealing structure, not only simple in structure, easy to assembly, and there is excellent sealing; Flange end is provided with seal ring; impeller end is provided with seal ring and slinger ring; slinger ring is positioned at the outside of seal ring; effectively prevented that the foul in working environment from directly contacting with the lip of internal layer seal ring; seal ring has been played to protective action; fall at the end rate of wear of seal ring epipharynx, played the effect of water dumping dynamic seal (packing) simultaneously.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below.Wherein:
Fig. 1 is water pump shaft connecting bearings half sectional view of the present utility model;
Fig. 2 is ring structure schematic diagram of the present utility model;
Fig. 3 is slinger ring structural representation of the present utility model.
concrete case study on implementation
As shown in Figure 1, a kind of water pump shaft connecting bearings with double-layer sealing structure, comprise outer ring 1, axle 2, rolling element 3, retainer 4, seal ring 5 and slinger ring 6 etc., wherein, on the internal diameter of described outer ring 1, establish two outer raceways, the external diameter of described axle 2 is provided with two interior raceways corresponding with outer raceway, and retainer 4 is arranged between outer ring 1 and axle 2, and rolling element 3 is arranged in the raceway between outer ring 1 and axle 2 by retainer 4; The both sides of described outer ring 1 internal diameter are equipped with a dust sealing groove 11, and dust sealing groove 11 is positioned at the outside of outer raceway; Described seal ring 5 one end embed in the dust sealing groove 11 of above-mentioned outer ring 1, the other end and axle 2 interference fit; On described axle 2, be further provided with a groove 23, this groove 23 is located at the outside of impeller end 22 seal rings 5, the internal diameter of described slinger ring 6 is fixedly mounted in above-mentioned groove 23, external diameter and outer ring 2 internal diameters leave gap, described axial clearance is not less than 0.1mm, and this gap Main Function is for avoiding friction to produce resistance.
As shown in Figure 2, above-mentioned seal ring 5 comprises O-ring seal 51 and skeleton 52, and wherein, described skeleton 52 cross sections are L shaped, and O-ring seal 51 is wrapped on the two ends and outer surface of skeleton 52; Described O-ring seal 51 comprises 2 lips 511 and 512, and seal ring 5 one end are embedded in dust sealing groove 11 by O-ring seal 51 peaces that are wrapped on skeleton, and the other end is by 2 lips 511,512 and axle 2 interference fit.
As shown in Figure 3, above-mentioned slinger ring 6 comprises O-ring seal 61 and skeleton 62, and wherein, described skeleton 62 cross sections are L shaped, and O-ring seal 61 is wrapped on the two ends and outer surface of skeleton 62; The internal diameter of described O-ring seal 61 is provided with a lip 611, and slinger ring 6 internal diameters are arranged in the groove 23 of axle by lip 611 interference fit on O-ring seal 61.
Above-mentioned water pump shaft connecting bearings flange end 21 is installed seal ring 5; impeller end 22 is provided with sealing; 5 and slinger ring 6; slinger ring 6 is positioned at the outside of seal ring 5; effectively prevented that the foul in working environment from directly contacting with the lip of internal layer seal ring 5; seal ring 5 has been played to protective action, fallen at the end rate of wear of seal ring 5 epipharynxs, played the effect of the moving 6 state sealings of water dumping simultaneously.
In the present embodiment, above-mentioned O- ring seal 51 and 61 adopts nitrile rubber material, and skeleton 52 and 62 adopts No. 10 steel plates.Described rolling element 3 adopts GCr15 material steel ball; Described outer ring 1 and axle 2 adopt GCr15 material; Described retainer 4 adopts PA66-GF25 material.
The utlity model has positive effect: above-mentioned band the foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description to do; or directly or indirectly use the technical field that is attached to other Related products, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. the water pump shaft connecting bearings with double-layer sealing structure, it is characterized in that: comprise outer ring, axle, rolling element, retainer, seal ring and slinger ring, wherein, on the internal diameter of described outer ring, establish two outer raceways, the external diameter of described axle is provided with two interior raceways corresponding with outer raceway, retainer is arranged between outer ring and axle, and rolling element is arranged in the raceway between outer ring and axle by retainer; The both sides of described outer ring internal diameter are equipped with a dust sealing groove, and dust sealing groove is positioned at the outside of outer raceway; Described seal ring one end embeds in the dust sealing groove of above-mentioned outer ring, the other end and axle interference fit; On described axle, be further provided with a groove, this groove is located at the outside of impeller end seal ring, and the internal diameter of described slinger ring is fixedly mounted in above-mentioned groove, and external diameter and outer ring internal diameter leave gap.
2. a kind of water pump shaft connecting bearings with double-layer sealing structure as claimed in claim 1, is characterized in that: above-mentioned seal ring comprises O-ring seal and skeleton, and wherein, described skeleton cross section is L shaped, and O-ring seal is wrapped on the two ends and outer surface of skeleton; Described O-ring seal comprises 2 lips, and seal ring one end is embedded in dust sealing groove by the O-ring seal peace being wrapped on skeleton, and the other end is by 2 lips and axle interference fit.
3. a kind of water pump shaft connecting bearings with double-layer sealing structure as claimed in claim 1, is characterized in that: above-mentioned slinger ring comprises O-ring seal and skeleton, and wherein, described skeleton cross section is L shaped, and O-ring seal is wrapped on the two ends and outer surface of skeleton; The internal diameter of described O-ring seal is provided with a lip, and slinger ring internal diameter is arranged in the groove of axle by the lip interference fit on O-ring seal.
4. a kind of water pump shaft connecting bearings with double-layer sealing structure as claimed in claim 2 or claim 3, is characterized in that: above-mentioned O-ring seal adopts nitrile rubber material, and skeleton adopts No. 10 steel plates.
5. a kind of water pump shaft connecting bearings with double-layer sealing structure as claimed in claim 1, is characterized in that: described rolling element adopts GCr15 material steel ball or roller; Described outer ring and axle adopt GCr15 material; Described retainer adopts PA66-GF25 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654527.7U CN203560138U (en) | 2013-10-22 | 2013-10-22 | Water pump shaft bearing provided with double seal structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654527.7U CN203560138U (en) | 2013-10-22 | 2013-10-22 | Water pump shaft bearing provided with double seal structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560138U true CN203560138U (en) | 2014-04-23 |
Family
ID=50509863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654527.7U Expired - Lifetime CN203560138U (en) | 2013-10-22 | 2013-10-22 | Water pump shaft bearing provided with double seal structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317829A (en) * | 2014-07-28 | 2016-02-10 | 优必胜(上海)精密轴承制造有限公司 | Agricultural vehicle clutch bearing with good sealing performance |
-
2013
- 2013-10-22 CN CN201320654527.7U patent/CN203560138U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317829A (en) * | 2014-07-28 | 2016-02-10 | 优必胜(上海)精密轴承制造有限公司 | Agricultural vehicle clutch bearing with good sealing performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |