CN203570650U - Rolling bearing device of cross flow fan in air conditioner - Google Patents
Rolling bearing device of cross flow fan in air conditioner Download PDFInfo
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- CN203570650U CN203570650U CN201320701366.2U CN201320701366U CN203570650U CN 203570650 U CN203570650 U CN 203570650U CN 201320701366 U CN201320701366 U CN 201320701366U CN 203570650 U CN203570650 U CN 203570650U
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- air
- rolling bearing
- flow fan
- metal shaft
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- 238000005096 rolling process Methods 0.000 title claims abstract description 80
- 239000002184 metal Substances 0.000 claims abstract description 68
- 238000004378 air conditioning Methods 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a rolling bearing device of a cross flow fan in an air conditioner. The rolling bearing device comprises an air conditioner shell (2), the cross flow fan (1) and a motor (3), the cross flow fan (1) is arranged in the air conditioner shell (2), the motor (3) is installed on the inner wall of the air conditioner shell (2), and a first metal shaft (4) and a second metal shaft (5) are arranged at the centers of the two end faces of the cross flow fan (1) respectively, wherein the first metal shaft (4) is connected with the motor (3), and the second metal shaft (5) is connected with the air conditioner shell (2) through the rolling bearing (6). The rolling bearing (6) in the device is in rolling friction and is small in friction coefficients, and therefore abrasion of the second metal shaft (5) is reduced, abrasion of the second metal shaft (5) and noise of the cross flow fan (1) are lowered, and it is guaranteed that the cross flow fan (1) can reliably run for a long term.
Description
Technical field
The utility model relates to the bearing of axial-flow fan in a kind of air-conditioning, particularly the bearing means of axial-flow fan one end metal shaft in air-conditioning internal machine.
Background technique
Axial-flow fan in domestic air conditioning in machine is cylindric, mainly comprises rotating cylinder and the two ends end cap thereof of inclined blade, at a certain end cap of rotating cylinder center, is fixed with rotating shaft, and this rotating shaft is connected with motor shaft, thereby motor can drive the rotation of rotating cylinder.This fan structure is compact, and parts connection and reasonable arrangement, in the same space of indoor apparatus of air conditioner, can increase the effective length of this fan, has improved indoor set space availability ratio, has reduced the radial vibration amplitude of fan simultaneously, and fan is operated steadily, and noise is low.
Axial-flow fan two ends are provided with rotating shaft, and this rotating shaft is metal shaft, and one end and motor are fixed, and an oil-impregnated bearing of the other end cover is fixed on interior machine.Because axial-flow fan is when rotating, between the metal shaft of axial-flow fan one end and oil-impregnated bearing, for sliding friction, can send abnormal sound.And through running year in year out, the oil mass of oil-impregnated bearing reduces and wearing and tearing increase, and causes frictional force to increase, and axial-flow fan is not steady, during running and oil-impregnated bearing can send larger abnormal sound, air conditioner producer changes oil-impregnated bearing and fan can only to such user, even replaces machine, not only causes maintenance to replace cost high, more can cause the public praise of product poor, user complains many, has affected the sale of product, brings larger loss to air conditioner producer.
Application number is that the Chinese patent of 201020235118.X discloses a kind of self-centering sliding bearing device for cross flow fan, comprise rubber base, in described rubber base, be also provided with self contering sliding bearing, rubber base inner side is provided with arc alignment concavity, self contering sliding bearing arranged outside has arc location convex surface, and the arc alignment concavity of rubber base inner side is located convex surface for contacting cooperation with the arc in self contering sliding bearing outside.When steel axle inserts after self contering sliding bearing, along with the continuous running of cross flow fan, self contering sliding bearing utilizes its arc location convex surface at continuous capturing position, and the integral-rotation center of Shi Qi center and cross flow fan is consistent.When having guaranteed coaxality, reduce the noise that blower fan spreads out of from bearing end, greatly improved the overall performance of blower fan, extended the working life of blower fan.This device has been used self contering sliding bearing on cross flow fan, can solve the problem that fan bearing makes a noise to a certain extent.But long-term running can make sliding bearing abrasion increase, and then also can cause frictional force to increase, the unsettled situation of cross flow fan.
Given this, the utility model is proposed.
Model utility content
In order to realize the purpose of this utility model, the technological scheme of employing is:
The rolling bearing system of axial-flow fan in a kind of air-conditioning, comprise air-conditioner housing, be arranged on the axial-flow fan in air-conditioner housing, be arranged on the motor on air-conditioner housing inwall, the center of two end faces of axial-flow fan is respectively arranged with the first metal shaft and the second metal shaft, wherein the first metal shaft is connected with motor, it is characterized in that, the second described metal shaft is connected with the inwall of air-conditioner housing by rolling bearing.
Further, described rolling bearing comprises inner ring and outer ring, and the second described metal shaft is connected with inner ring, and described air-conditioner housing inwall is connected with outer ring.
Further, the second described metal shaft is inserted inner ring and is connected with inner ring interference fit.
Further, the outer ring of described rolling bearing is arranged on air-conditioner housing by link.
Further, described link is rubber sleeve, and outer ring embeds in rubber sleeve and is connected with air-conditioner housing.
Further, described rubber sleeve is detachably connected on air-conditioner housing.
Further, described rolling bearing comprises inner ring and outer ring, and the second described metal shaft is connected with outer ring, and described air-conditioner housing inwall is connected with inner ring.
Further, on described inner ring, weld a disc flange, on described disc flange, be provided with bolt hole, be provided with the bolt hole corresponding with disc flange on air-conditioner housing inwall, the bolt hole on the bolt hole on disc flange and air-conditioner housing inwall is bolted.
Further, the center of the second described metal shaft end face is provided with axis hole, the outer ring of described rolling bearing insert in axis hole and with axis hole interference fit.
Further, described rolling bearing is a kind of in deep groove ball bearing, selfaligning bearing, needle bearing.
Below the technical solution of the utility model is made further explanation.
Axial-flow fan described in the utility model mainly comprises rotating cylinder and the two ends end cap thereof of inclined blade, the center of two end caps is respectively arranged with the first metal shaft and the second metal shaft, the first metal shaft is connected with the motor shaft of motor, thereby motor can drive the rotation of rotating cylinder.The utility model is connected by rolling bearing the second metal shaft with air-conditioner housing, not only easy for installation, and sliding friction is replaced with to rolling friction, because rolling bearing is rolling friction, noise is little, weares and teares little, fan running is steady, service time is long, and particularly noise is little, can effectively reduce maintenance cost.
Rolling bearing described in the utility model comprises inner ring, outer ring and rolling element between it, wherein, the inner ring of rolling bearing is connected with the second metal shaft, the second metal shaft can directly be inserted in the inner ring of rolling bearing and inner ring interference fit, in addition, the second metal shaft and inner ring also can adopt spline joint that the inner ring of rolling bearing is rotated with the second metal shaft simultaneously.The outer ring of rolling bearing is connected with the inwall of air-conditioner housing, the outer ring of rolling bearing can directly be welded on the inwall of air-conditioner housing, or by link, outer ring is fixed on air-conditioner housing, the outer ring of rolling bearing can be inserted in bearing support, bearing support is fixedly mounted on air-conditioning inwall again, the bolt hole mating with bearing support is set on air-conditioner housing, with bolt, bearing support is fixedly connected with air-conditioner housing.Preferably, the outer ring of rolling bearing can be embedded in a rubber base and is connected with air-conditioner housing, then rubber base is detachably attached in air conditioner housing, on the shell of air-conditioning, be reserved with rubber base indent, rubber base is arranged in air conditioner housing with gland.The such structure of rubber base is not only easy for installation, accurate positioning, and sliding friction is replaced with to rolling friction, because rolling bearing is rolling friction, noise is little, weares and teares little, and fan running is steady, service time is long, operate steadily reliable, can effectively reduce maintenance cost, secondly, rubber base can cushion the shake of axial-flow fan, makes axial-flow fan smooth running.
The second metal shaft described in the utility model can link together with the outer ring of rolling bearing, and the inner ring of rolling bearing is arranged in air conditioner housing by bearing support or disc flange.The end face center of the second metal shaft arranges axis hole, the outer ring of rolling bearing is inserted in axis hole, and by the two interference fit, the outer ring of rolling bearing is rotated together with the second metal shaft.
Rolling bearing described in the utility model is a kind of in deep groove ball bearing, selfaligning bearing, needle bearing.In axial-flow fan working procedure, driven by motor the first metal shaft is rotated, and the rotating cylinder that blade of axial-flow fan forms also rotates thereupon.In the second metal shaft, rolling bearing is set, the inner ring of rolling bearing or outer ring are arranged in the second metal shaft, outer ring or inner ring are arranged on the inwall of air-conditioner housing, and in the process that the second metal shaft is rotated, relative displacement does not occur for the second metal shaft and the inner ring or the outer ring that are attached thereto.Outer ring is fixedly mounted on the inwall of air-conditioner housing, thereby relies on the rolling element in rolling bearing to reduce the frictional force between inner ring and outer ring, thereby reduces the wearing and tearing of the second metal shaft, and then extends service life of a machine, and reduces noise.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of rolling bearing in embodiment 1;
Fig. 3 is the structural representation of rolling bearing in embodiment 2.
Primary component explanation:
1-axial-flow fan, 2-air-conditioner housing, 3-motor, 4-the first metal shaft, 5-the second metal shaft, 6-rolling bearing, 7-outer ring, 8-inner ring, 9-rolling element, 10-rubber base, 11-bolt, 12-disc flange.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
As shown in Figure 1, the rolling bearing system of axial-flow fan in air-conditioning in the utility model, comprise air-conditioner housing 2, be arranged on axial-flow fan 1 and motor 3 in air-conditioner housing 2, the center of two end faces of axial-flow fan 1 is respectively arranged with the first metal shaft 4 and the second metal shaft 5, wherein the first metal shaft 4 is connected with motor 3, for reducing the wearing and tearing of the second metal shaft 5 in axial-flow fan 1 working procedure, the second metal shaft 5 is connected with air-conditioner housing 2 by rolling bearing 6.This rolling bearing 6 comprises inner ring 8, outer ring 7 and the rolling element between it 9, as shown in Figure 2, the second metal shaft 5 is inserted in the inner ring 8 of rolling bearing 6, and is connected with inner ring 8 interference fit, outer ring 7 embeds in rubber base 10, and rubber base 10 is detachably connected on air-conditioner housing 2.
Axial-flow fan 1 of the present utility model in the course of the work, the motor shaft of motor 3 drives the rotation of the first metal shaft 4 of an end face, the rotating cylinder of axial-flow fan 2 rotates thereupon, and the second metal shaft 5 of another end face is installed and is connected with air-conditioner housing 2 by rolling bearing 6.The inner ring 8 of rolling bearing 6 rotates with the second metal shaft 5 interference fit and with the second metal shaft 5, the outer ring 7 of rolling bearing 6 embeds in rubber base 10 and is connected with air conditioner housing 2, by the rotation of rolling element 9 between inner ring 8 and outer ring 7, reduce the frictional force that the second metal shaft 5 rotation processes produce, and then the noise that reduces to produce in working procedure, lengthen the life of a machine.Secondly the use of rubber base 10 can cushion the shake of axial-flow fan 1, makes axial-flow fan 1 smooth running
In addition, between the second metal shaft 5 and the inner ring 8 of rolling bearing 6, adopt spline joint, or the second metal shaft 5 directly can be welded in the inner ring 8 of rolling bearing 6.
Embodiment 2
As shown in Figure 1, the rolling bearing system of axial-flow fan in air-conditioning in the utility model, comprise air-conditioner housing 2, be arranged on axial-flow fan 1 and motor 3 in air-conditioner housing 2, the center of two end faces of axial-flow fan 1 is respectively arranged with the first metal shaft 4 and the second metal shaft 5, wherein the first metal shaft 4 is connected with motor 3, for reducing the frictional force of the second metal shaft 5 in axial-flow fan 1 working procedure, the second metal shaft 5 is connected with the inwall of air-conditioner housing 2 by rolling bearing 6.This rolling bearing 6 comprises inner ring 8, outer ring 7 and the rolling element between it 9, as shown in Figure 3, on the end face of the second metal shaft 5, is provided with axis hole, and insert in axis hole the outer ring 7 of rolling bearing 6, and the second metal shaft 5 is welded in axis hole, or is connected with axis hole interference fit.The inner ring 8 of rolling bearing 6 is connected together with the eyelet welding of disc flange 12, and disc flange 12 is connected with air-conditioner housing 2 inwalls by bolt 11.
Axial-flow fan 1 of the present utility model in the course of the work, the motor shaft of motor 3 drives the rotation of the first metal shaft 5 of an end face, the rotating cylinder of axial-flow fan 1 rotates thereupon, and the second metal shaft 5 of another end face is installed and is connected with air-conditioner housing 2 by rolling bearing 6.Rotate with the second metal shaft 5 outer ring 7 of rolling bearing 6, the inner ring 8 of rolling bearing 6 is arranged on air-conditioner housing 2 inwalls by disc flange 12, by the rotation of rolling element 9 between inner ring 8 and outer ring 7, reduce the frictional force that the second metal shaft 5 rotation processes produce, and then the noise that reduces to produce in working procedure, lengthen the life of a machine.
Embodiment in above-described embodiment can further combine or replace; and embodiment is described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; do not departing under the prerequisite of the utility model design philosophy; the various changes and modifications that in related domain, professional and technical personnel makes the technical solution of the utility model, all belong to protection domain of the present utility model.
Claims (10)
1. the rolling bearing system of axial-flow fan in an air-conditioning, comprise air-conditioner housing (2), be arranged on the axial-flow fan (1) in air-conditioner housing (2), be arranged on the motor (3) on air-conditioner housing (2) inwall, the center of two end faces of axial-flow fan (1) is respectively arranged with the first metal shaft (4) and the second metal shaft (5), wherein the first metal shaft (4) is connected with motor (3), it is characterized in that, described the second metal shaft (5) is connected with air-conditioner housing (2) by rolling bearing (6).
2. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 1, it is characterized in that, described rolling bearing (6) comprises inner ring (8) and outer ring (7), described the second metal shaft (5) is connected with inner ring (8), and described air-conditioner housing (2) is connected with outer ring (7).
3. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 2, is characterized in that, described the second metal shaft (5) is inserted inner ring (8) and is connected with inner ring (8) interference fit.
4. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 2, is characterized in that, the outer ring (7) of described rolling bearing (6) is arranged on air-conditioner housing (2) by link.
5. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 4, is characterized in that, described link is rubber sleeve (10), and outer ring (7) embed in rubber sleeve (10) and are connected with air-conditioner housing (2).
6. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 5, is characterized in that, described rubber sleeve (10) is detachably connected on air-conditioner housing (2).
7. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 1, it is characterized in that, described rolling bearing (6) comprises inner ring (8) and outer ring (7), described the second metal shaft (5) is connected with outer ring (7), and described air-conditioner housing (2) is connected with inner ring (7).
8. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 7, it is characterized in that, the upper welding of described inner ring (7) one disc flange (12), described disc flange is provided with bolt hole on (12), on air-conditioner housing (2) inwall, be provided with the bolt hole corresponding with disc flange (12), the bolt hole on disc flange (12) is connected by bolt (11) with the bolt hole on air-conditioner housing (2) inwall.
9. the rolling bearing system of axial-flow fan in a kind of air-conditioning according to claim 7, it is characterized in that, the center of described the second metal shaft (5) end face is provided with axis hole, the outer ring (7) of described rolling bearing (6) insert in axis hole and with axis hole interference fit.
10. according to the rolling bearing system of axial-flow fan in a kind of air-conditioning described in claim 1-9 any one, it is characterized in that, described rolling bearing (6) is a kind of in deep groove ball bearing, selfaligning bearing, needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701366.2U CN203570650U (en) | 2013-11-07 | 2013-11-07 | Rolling bearing device of cross flow fan in air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701366.2U CN203570650U (en) | 2013-11-07 | 2013-11-07 | Rolling bearing device of cross flow fan in air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570650U true CN203570650U (en) | 2014-04-30 |
Family
ID=50538383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701366.2U Expired - Lifetime CN203570650U (en) | 2013-11-07 | 2013-11-07 | Rolling bearing device of cross flow fan in air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570650U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412545A (en) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | Fan assembly and air conditioner |
| CN113054816A (en) * | 2021-01-28 | 2021-06-29 | 天津大学 | Bearingless ultra-high-speed permanent magnet motor for vehicle fuel cell air compressor |
| CN114450489A (en) * | 2019-09-30 | 2022-05-06 | 大金工业株式会社 | Fan assembly and air conditioner |
-
2013
- 2013-11-07 CN CN201320701366.2U patent/CN203570650U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114450489A (en) * | 2019-09-30 | 2022-05-06 | 大金工业株式会社 | Fan assembly and air conditioner |
| CN114450489B (en) * | 2019-09-30 | 2023-06-06 | 大金工业株式会社 | Fan assembly and air conditioner |
| CN111412545A (en) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | Fan assembly and air conditioner |
| CN111412545B (en) * | 2020-03-02 | 2023-09-22 | 珠海格力电器股份有限公司 | Fan assembly and air conditioner |
| CN113054816A (en) * | 2021-01-28 | 2021-06-29 | 天津大学 | Bearingless ultra-high-speed permanent magnet motor for vehicle fuel cell air compressor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
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| CX01 | Expiry of patent term |