CN204878044U - Drain pump with one -way thrust ball bearing - Google Patents
Drain pump with one -way thrust ball bearing Download PDFInfo
- Publication number
- CN204878044U CN204878044U CN201520619155.3U CN201520619155U CN204878044U CN 204878044 U CN204878044 U CN 204878044U CN 201520619155 U CN201520619155 U CN 201520619155U CN 204878044 U CN204878044 U CN 204878044U
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- Prior art keywords
- rotor
- bearing
- thrust ball
- ball bearing
- face
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- Expired - Fee Related
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Abstract
The utility model discloses a drain pump with one -way thrust ball bearing, including the pump body, be provided with the flabellum wheel in the pump body, pump body outer joint has a stator coil subassembly, the inside both ends of stator coil subassembly are provided with the bearing respectively, install the rotor shaft in the diaxon holds, be fixed with on the rotor shaft to be located the rotor of diaxon between holding, this rotor shaft one end stretch into in the pump body with fan impeller connection, the rotor face -to -face mounting has one -way thrust ball bearing. In this kind of drain pump structure, convert the sliding friction of original rotor terminal surface and bearing terminal surface into rolling friction through the one -way thrust ball bearing at the rotor face -to -face mounting, greatly reduced coefficient of friction and production heat, reduced the wearing and tearing that bearing and rotor produced in the friction of high -speed relative motion, effective increase of service life.
Description
Technical field
The utility model relates to a kind of pump, particularly a kind of draining pump.
Background technique
Common draining pump is made up of rotor, impeller, coupling shaft sleeve, the pump housing, pump cover and stator coil.The rotor of draining pump gathers methyl alcohol by the ferrite of steel axle and cylinder type by mold injection to combine.This rotor structure is cylindrical, and two ends of rotor face covers the thick polyoxymethylene of one deck 1.5mm, and the heat distortion temperature of polyoxymethylene is 130 degree, also not wear-resisting.When draining pump load draining, rotor can move axially, and makes its end face can be close to the bearing face be fixed on the pump housing.When running up, the sliding friction that rotor end-face and bearing face produce because of relative movement and raw temperature of generating heat, the temperature of rotor end-face raises and makes that working of plastics hardness reduces, deliquescing, the wearing and tearing of aggravation contact surface, thus the working life shortening draining pump.Even can welding be integrated because frictional heating makes plastics softening, cause the disabler of pump.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of draining pump, can reduce the wearing and tearing of rotor end-face, effectively increase the service life.
In order to solve the problems of the technologies described above, a kind of draining pump with single direction thrust ball bearing of the present utility model, comprise the pump housing, be provided with Vane wheel in the pump housing, the pump housing is externally connected with stator coil assembly, and the inner two ends of described stator coil assembly are respectively arranged with bearing, in two bearings, rotor shaft is installed, rotor shaft is fixed with the rotor between two bearings, this rotor shaft one end is stretched in the pump housing and is connected with described Vane wheel, and described rotor end-face is provided with single direction thrust ball bearing.
As the improvement of technique scheme, there is gap between described single direction thrust ball bearing and described bearing, this gap is less than 0.5mm.
As the improvement of technique scheme, described bearing is arranged in rubber bush bearing lid, and described stator coil assembly inside is provided with the plastic bearing lid be fastened with this rubber bush bearing lid.
As the improvement of technique scheme, described rotor shaft is connected with described Vane wheel by connecting axle sleeve.
The beneficial effects of the utility model are: in this draining pump structure, by the single direction thrust ball bearing installed at rotor end-face, the sliding friction of original rotor end-face and bearing face is converted to rolling friction, significantly reduce friction factor and produce heat, decrease bearing and rotor in the fricative wearing and tearing of high speed relative movement, effectively increase the service life.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A place schematic enlarged-scale view in Fig. 1.
Embodiment
With reference to Fig. 1, a kind of draining pump with single direction thrust ball bearing of the present utility model, comprise the pump housing 1, be provided with Vane wheel 2 in the pump housing 1, the pump housing 1 is externally connected with stator coil assembly 3, and the described inner two ends of stator coil assembly 3 are respectively arranged with bearing 4, rotor shaft 5 is installed in two bearings, rotor shaft 5 is fixed with the rotor 6 between two bearings, this rotor shaft 5 one end is stretched in the pump housing and is connected with described Vane wheel 2, and described rotor 6 end face is provided with single direction thrust ball bearing 7.In this draining pump structure, by the single direction thrust ball bearing installed at rotor end-face, the sliding friction of original rotor end-face and bearing face is converted to rolling friction, wipe friction factor and about reduce 20 times, under same axial pressure, frictional force is produced by reduction 20 times to bearing face extruding, significantly reduce friction factor and produce heat, decreasing bearing and rotor in the fricative wearing and tearing of high speed relative movement, effectively increase the service life.
With reference to Fig. 2, wherein, there is gap 8 between described single direction thrust ball bearing 7 and described bearing 4, this gap 8 is less than 0.5mm, prevents owing to impacting excessive and causes damaging.
Described bearing 4 is arranged in rubber bush bearing lid 10, and described stator coil assembly inside is provided with the plastic bearing lid 11 be fastened with this rubber bush bearing lid 10, makes bearing mounting structure have good buffering and shock preventing function.
In addition, described rotor shaft 5 is connected with described Vane wheel 2, so that the installation and maintenance of Vane wheel by connecting axle sleeve 9.
The foregoing is only preferred embodiments of the present utility model, as long as the technological scheme realizing the utility model object with basic same approach all belongs within protection domain of the present utility model.
Claims (4)
1. one kind has the draining pump of single direction thrust ball bearing, comprise the pump housing (1), Vane wheel (2) is provided with in the pump housing (1), the pump housing (1) is externally connected with stator coil assembly (3), it is characterized in that: the inner two ends of described stator coil assembly (3) are respectively arranged with bearing (4), rotor shaft (5) is installed in two bearings, rotor shaft (5) is fixed with the rotor (6) between two bearings, this rotor shaft (5) one end is stretched in the pump housing and is connected with described Vane wheel (2), and described rotor (6) end face is provided with single direction thrust ball bearing (7).
2. the draining pump with single direction thrust ball bearing according to claim 1, is characterized in that: there is gap (8) between described single direction thrust ball bearing (7) and described bearing (4), and this gap (8) are less than 0.5mm.
3. the draining pump with single direction thrust ball bearing according to claim 1 and 2, it is characterized in that: described bearing (4) is arranged in rubber bush bearing lid (10), described stator coil assembly inside is provided with the plastic bearing lid (11) be fastened with this rubber bush bearing lid (10).
4. the draining pump with single direction thrust ball bearing according to claim 1 and 2, is characterized in that: described rotor shaft (5) is connected with described Vane wheel (2) by connecting axle sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619155.3U CN204878044U (en) | 2015-08-15 | 2015-08-15 | Drain pump with one -way thrust ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520619155.3U CN204878044U (en) | 2015-08-15 | 2015-08-15 | Drain pump with one -way thrust ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878044U true CN204878044U (en) | 2015-12-16 |
Family
ID=54822423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520619155.3U Expired - Fee Related CN204878044U (en) | 2015-08-15 | 2015-08-15 | Drain pump with one -way thrust ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878044U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410387A (en) * | 2019-04-28 | 2019-11-05 | 清华大学 | Gas pulses device |
| CN114263599A (en) * | 2021-11-30 | 2022-04-01 | 西安红庆机械厂 | Helical gear pump with axial play compensation and method for reducing wear thereof |
| KR20220106033A (en) * | 2021-01-21 | 2022-07-28 | 현대중공업터보기계 주식회사 | Centrifugal Pump With Balance System Wear Prevention Means |
-
2015
- 2015-08-15 CN CN201520619155.3U patent/CN204878044U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410387A (en) * | 2019-04-28 | 2019-11-05 | 清华大学 | Gas pulses device |
| KR20220106033A (en) * | 2021-01-21 | 2022-07-28 | 현대중공업터보기계 주식회사 | Centrifugal Pump With Balance System Wear Prevention Means |
| KR102652408B1 (en) * | 2021-01-21 | 2024-03-29 | 현대중공업터보기계 주식회사 | Centrifugal Pump With Balance System Wear Prevention Means |
| CN114263599A (en) * | 2021-11-30 | 2022-04-01 | 西安红庆机械厂 | Helical gear pump with axial play compensation and method for reducing wear thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Drain pump with one -way thrust ball bearing Effective date of registration: 20171113 Granted publication date: 20151216 Pledgee: China Co. truction Bank Corp Jiangmen branch Pledgor: JIANGMEN YINHAO ELECTRICAL APPLIANCES Co.,Ltd. Registration number: 2017440000130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20210815 |