CN220956145U - Self-aligning double-bearing high-reliability fan shaft assembly - Google Patents
Self-aligning double-bearing high-reliability fan shaft assembly Download PDFInfo
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- CN220956145U CN220956145U CN202322637278.7U CN202322637278U CN220956145U CN 220956145 U CN220956145 U CN 220956145U CN 202322637278 U CN202322637278 U CN 202322637278U CN 220956145 U CN220956145 U CN 220956145U
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- fan shaft
- fan
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- aligning
- bearing
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- 239000000428 dust Substances 0.000 claims abstract description 34
- 125000006850 spacer group Chemical group 0.000 claims abstract description 10
- 230000009977 dual effect Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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Abstract
The utility model provides a self-aligning double-bearing high-reliability fan shaft assembly, which is characterized in that: the fan belt pulley is arranged on the fan shaft, and the double-row tapered roller bearing and the self-aligning roller bearing are arranged between the fan belt pulley and the fan shaft. The front end of the fan shaft component is provided with a double-row tapered roller bearing, the middle spacer bush is connected, the rear end of the fan shaft component is provided with a self-aligning roller bearing, and the fan shaft component has the characteristics of impact resistance, automatic aligning, high rigidity and the like while bearing the composite high bearing in the radial direction and the axial direction, and the reliability of the fan shaft component is greatly improved. The rear end can bear impact load brought by a clutch fan while bearing higher radial load. The front end and the rear end of the fan shaft part are respectively provided with a non-contact groove-shaped loop dust cover, so that pollutants such as particles, dust, slurry and the like in the environment can be effectively prevented from entering the inner cavity of the fan shaft part, the normal use environment is ensured, and the fan shaft part has a heat dissipation effect.
Description
Technical Field
The present utility model relates to a fan shaft assembly, and more particularly, to a self-aligning dual bearing high reliability fan shaft assembly.
Background
In the process of realizing the carbon reaching peak before 2030 and realizing the carbon neutralization strategic target task before 2060, the automobile industry is deeply transformed and the national six-emission standard is comprehensively upgraded; in order to fully implement the new development concepts of innovation, coordination, greenness, openness and sharing, the pushing of six engines in China has entered a long-life and high-reliability stage, meanwhile, the use working conditions of the engines are continuously diversified and severe, as the power of a silicone oil clutch fan adopted at the front end of an engine gear train accessory is continuously increased, the mass is continuously increased, a connecting cushion block is continuously lengthened, the traditional fan shaft component can not completely meet the requirements of the six engines in China, and I develop the self-aligning high-reliability double-bearing fan shaft component structure. The fan shaft component is structurally innovative and adopts the double-row tapered roller bearing, the middle spacer bush is connected, the self-aligning roller bearing is arranged at the rear end of the fan shaft component, and the fan shaft component has the characteristics of impact resistance, automatic aligning, high rigidity and the like while bearing the radial-axial composite high bearing, so that the reliability of the fan shaft component is greatly improved, and the long service life of the fan shaft component is ensured. The front end gear train is mainly used for, but not limited to, an engine front end gear train.
Disclosure of utility model
The utility model aims to provide a self-aligning double-bearing high-reliability fan shaft assembly which is used for a silicone oil clutch fan and can bear stronger axial and radial composite high load and has better reliability.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a self-aligning double-bearing high-reliability fan shaft assembly, which is characterized in that: the fan belt pulley is arranged on the fan shaft, and the double-row tapered roller bearing and the self-aligning roller bearing are arranged between the fan belt pulley and the fan shaft.
Further, the fan shaft comprises a bottom plate and a shaft body extending out of the bottom plate, a bolt mounting hole connected with the engine body is formed in the bottom plate, a transition large round angle for guaranteeing strength is formed in a shaft neck, a step shaft connected with two bearings is arranged in the middle of the fan shaft, and a threaded hole connected with a belt pulley is formed in the front end of the fan shaft.
Furthermore, the inner hole wall of the fan belt pulley is provided with a hole elastic retainer ring, and a step matched with the double-row tapered roller bearing and the self-aligning roller bearing and a hole elastic retainer ring groove for mounting the hole are formed; the front end and the rear end of the fan belt pulley are provided with a rear dust cover and a front dust cover, and annular grooves for installing the rear dust cover and the front dust cover are formed in the front end and the rear end of the fan belt pulley; the front end of the fan belt pulley is provided with a positioning spigot and a threaded connecting hole for installing a fan component.
Further, a baffle is arranged on the end face of the fan shaft, the baffle is attached to the front dust cover, and the rear dust cover is attached to the aligning roller bearing.
Further, the baffle and the front dust cover are fixed on the end face of the fan shaft through hexagonal flange face bolts.
Further, a spacer bush is arranged between the double-row tapered roller bearing and the self-aligning roller bearing, and a spacer bush II is arranged between the rear dust cover and the bottom plate of the fan shaft.
The utility model has the beneficial effects that:
The front end of the fan shaft component is provided with a double-row tapered roller bearing, the middle spacer bush is connected, the rear end of the fan shaft component is provided with a self-aligning roller bearing, and the fan shaft component has the characteristics of impact resistance, automatic aligning, high rigidity and the like while bearing the composite high bearing in the radial direction and the axial direction, and the reliability of the fan shaft component is greatly improved. The rear end can bear impact load brought by a clutch fan while bearing higher radial load. The front end and the rear end of the fan shaft part are respectively provided with a non-contact groove-shaped loop dust cover, so that pollutants such as particles, dust, slurry and the like in the environment can be effectively prevented from entering the inner cavity of the fan shaft part, the normal use environment is ensured, and the fan shaft part has a heat dissipation effect.
Drawings
FIG. 1 is a schematic illustration of a self-aligning dual bearing high reliability fan shaft assembly;
In the figure: 1-fan belt pulley, 2-fan shaft, 3-spacer bush, 4-spacer bush II, 5-back dust cover, 6-front dust cover, 7-baffle, 8-hexagonal flange face bolt, 9-double row tapered roller bearing, 10-aligning roller bearing and 11-hole elastic retainer ring.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
As shown in fig. 1: a self-aligning dual bearing high reliability fan shaft assembly comprising: the fan belt pulley 1, the fan shaft 2, the spacer bush 3, the spacer bush II4, the rear dust cover 5, the front dust cover 6, the baffle 7, the hexagonal flange face bolt 8, the double-row tapered roller bearing 9, the self-aligning roller bearing 10 and the hole elastic retainer ring 11. The fan belt pulley 1 is arranged on the fan shaft 2, the fan shaft 2 is composed of a bottom plate and a shaft body extending from the bottom plate, the shaft body extending from the fan shaft 2 is inserted into an inner hole of the fan belt pulley 1, a double-row tapered roller bearing 9 and a self-aligning roller bearing 10 are arranged between the fan belt pulley 1 and the shaft body extending from the fan shaft 2, and a step matching the double-row tapered roller bearing 9 and the self-aligning roller bearing 10 and an elastic check ring 11 groove for a mounting hole are formed in the inner hole wall of the fan belt pulley 1. A partition plate 3 is arranged between the double-row tapered roller bearing 9 and the self-aligning roller bearing 10, the end surface of the self-aligning roller bearing 10 which is not contacted with the partition plate 3 is attached to the rear dust cover 5, and a spacer II4 is arranged between the rear dust cover 5 and the bottom plate of the fan shaft 2. A baffle 7 is arranged on the end face of the shaft body extending out of the fan shaft 2, and a front dust cover 6 is arranged on the baffle 7. Annular grooves for installing a rear dust cover 5 and a front dust cover 6 are designed at the front end and the rear end of the fan belt pulley 1, and a positioning spigot for installing a fan component and a threaded connecting hole are arranged at the front end of the fan belt pulley 1; the bottom plate of the fan shaft 2 is provided with a bolt mounting hole connected with an engine body, a transition large round angle for ensuring strength is arranged at the journal, the middle part of the fan shaft is provided with a step shaft connected with two bearings, and the front end of the fan shaft is provided with a threaded hole connected with a belt pulley. The front dust cover 6 and the baffle 7 are fixed on the shaft body end surface of the fan shaft 2 by hexagonal flange surface bolts 8. The rear dust cover 5 and the front dust cover 6 are metal dust covers, and form a groove-shaped loop with the annular groove of the fan belt pulley, so that dust can be prevented and heat can be dissipated. The mechanical property grade of the hexagonal flange face bolt 8 is 12.9;
The fan shaft component has the characteristics of high bearing capacity, impact resistance, self-aligning property, high rigidity and the like, can be used for carrying a high-power and heavy fan, and is suitable for complex working conditions. The invention improves the service life and reliability of the fan shaft component under the conditions of high bearing, strong impact and large deflection.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A self-aligning dual-bearing high reliability fan shaft assembly, characterized by: the novel fan comprises a fan belt pulley (1), a fan shaft (2), double-row tapered roller bearings (9) and a self-aligning roller bearing (10), wherein the fan belt pulley (1) is arranged on the fan shaft (2), and the double-row tapered roller bearings (9) and the self-aligning roller bearing (10) are arranged between the fan belt pulley (1) and the fan shaft (2).
2. A self aligning dual bearing high reliability fan shaft assembly according to claim 1 wherein said fan shaft (2) comprises a base plate and a shaft body extending from the base plate, the base plate having a bolt mounting hole for connecting the engine body, the journal having a transition large fillet for ensuring strength, the middle having a stepped shaft for connecting the bearings, the front end having a threaded hole for connecting the pulley.
3. The self-aligning double-bearing high-reliability fan shaft assembly according to claim 1, wherein the inner hole wall of the fan belt pulley (1) is provided with a hole elastic retainer ring (11) and is provided with a step for matching the double-row tapered roller bearing (9) with the self-aligning roller bearing (10) and a groove for installing the hole elastic retainer ring (11); the front end and the rear end of the fan belt pulley (1) are provided with a rear dust cover (5) and a front dust cover (6), and annular grooves for installing the rear dust cover (5) and the front dust cover (6) are formed simultaneously; the front end of the fan belt pulley (1) is provided with a positioning spigot and a threaded connection hole for installing a fan component.
4. A self aligning dual bearing high reliability fan shaft assembly according to claim 3 wherein said fan shaft (2) end face is provided with a baffle (7), said baffle (7) being attached to a front dust cover (6), said rear dust cover (5) being attached to a self aligning roller bearing (10).
5. A self aligning dual bearing high reliability fan shaft assembly according to claim 4 wherein said baffle (7) and front dust cap (6) are secured to the end face of the fan shaft (2) by hexagonal flange face bolts (8).
6. The self-aligning double-bearing high-reliability fan shaft assembly according to claim 1, wherein a spacer (3) is arranged between the double-row tapered roller bearing (9) and the self-aligning roller bearing (10), and a spacer II (4) is arranged between the rear dust cover (5) and the bottom plate of the fan shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322637278.7U CN220956145U (en) | 2023-09-27 | 2023-09-27 | Self-aligning double-bearing high-reliability fan shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322637278.7U CN220956145U (en) | 2023-09-27 | 2023-09-27 | Self-aligning double-bearing high-reliability fan shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956145U true CN220956145U (en) | 2024-05-14 |
Family
ID=91025014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322637278.7U Active CN220956145U (en) | 2023-09-27 | 2023-09-27 | Self-aligning double-bearing high-reliability fan shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956145U (en) |
-
2023
- 2023-09-27 CN CN202322637278.7U patent/CN220956145U/en active Active
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