CN201165999Y - Engine cooling water pump - Google Patents
Engine cooling water pump Download PDFInfo
- Publication number
- CN201165999Y CN201165999Y CNU200720302944XU CN200720302944U CN201165999Y CN 201165999 Y CN201165999 Y CN 201165999Y CN U200720302944X U CNU200720302944X U CN U200720302944XU CN 200720302944 U CN200720302944 U CN 200720302944U CN 201165999 Y CN201165999 Y CN 201165999Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- cooling water
- water pump
- engine cooling
- static seal
- 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 - Fee Related
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Abstract
The utility model discloses an engine cooling water pump, which belongs to the technical field of cooling systems of engines. The structure of the engine cooling water pump comprises that the engine cooling water pump comprises a pump body and a rotating shaft, an impeller chamber is arranged in the pump body, an impeller is fixed on the rotating shaft and is placed in the impeller chamber, a sealing device is disposed between the impeller chamber and the rotating shaft, the sealing device comprises a moving sealing ring which is fixedly connected to the rotating shaft and a fixed sealing ring which is connected to the pump body, and the fixed sealing ring is of a single structure and is elastically pressed on the moving sealing ring. The fixed sealing ring and the moving sealing ring are pressed together elastically, thereby guaranteeing the sealing effect, the rotating shaft is not easy to rust, thereby increasing the service life of the cooling water pump, and bringing convenience for assembly and controlling the engagement of the fixing sealing ring and the moving sealing ring.
Description
Technical field
The utility model relates to a kind of cooling waterpump that is installed on the motor.
Background technique
Motor changes into kinetic energy to chemical energy when work, follow the conversion process of above-mentioned energy can produce a large amount of heats in engine working process, and these caloric requirements are derived outside the motor, otherwise can have influence on the working stability and the life-span of motor.Existing cooling to motor mainly contains water-cooled and air-cooled dual mode, if large-scale motor mainly adopts the type of cooling of water-cooled.Motor mainly comprises cooling waterpump and various pipeline in its cooling system when adopting the type of cooling of water-cooled, cooling waterpump mainly is to promote cooling water to flow to carry out heat exchange in pipeline.In cooling waterpump, all need to be provided with water sealing device, enter into gap location between rotating shaft and the pump case with blocking-up water.The structure of existing water sealing device comprises dynamic seal ring and static seal circle, dynamic seal ring is connected in the rotating shaft, and the static seal circle is connected in the pump case, and dynamic seal ring and static seal circle fit together mutually, and when dynamic seal ring was followed the rotating shaft rotation, it rotated with respect to the static seal circle.Existing static seal circle is a split-type structural, promptly it in week upwards for segmented.The static seal circle of this structure is installed inconvenience, and only fit together between it and the dynamic seal ring, use a period of time after because the rubbing action between the dynamic and static seal ring, wearing clearance between them can not get compensation, and this is unfavorable for guaranteeing the seal request between them.
The model utility content
The purpose of this utility model is that a kind of engine cooling water pump that has good sealing effect, long service life, is convenient to assemble is provided at the problems referred to above.
For achieving the above object, the technical solution of the utility model: a kind of engine cooling water pump, comprise the pump housing, rotating shaft, have impeller cavity in the pump housing, impeller is fixed in the rotating shaft and is positioned at impeller cavity, is provided with seal arrangement between impeller cavity and rotating shaft, it is characterized in that, described seal arrangement comprises the dynamic seal ring that is connected in the rotating shaft and is connected static seal circle on the pump housing, and the static seal circle is a monomer structure, it flexibly roof pressure on dynamic seal ring.
In this engine cooling water pump, described dynamic seal ring is that the ceramic wear-resisting circle by support and ring-type constitutes, and described static seal circle roof pressure is on wear-resisting circle.
In this engine cooling water pump, be provided with spring between the described static seal circle and the pump housing, spring housing is in rotating shaft, and two ends act on respectively on the static seal circle and the pump housing.
In this engine cooling water pump, be provided with bracing ring between the described static seal circle and the pump housing, the static seal circle is located at the end of bracing ring.
In this engine cooling water pump, described bracing ring longitudinal plane is V-shaped.
In this engine cooling water pump, be provided with piece bearing in the described pump housing, piece bearing is a ball one pole structure, piece bearing is passed in described rotating shaft.
In this engine cooling water pump, establish on the outer circumferential face of described rotating shaft and be used for the raceway groove that matches with piece bearing steel ball and roller.
The beneficial effects of the utility model are embodied in:
Above-mentioned static seal circle is a unitary structure, and this provides convenience for production, also is convenient to the static seal circle is assemblied in the cooling waterpump, and is easy to control mated condition between the dynamic and static seal ring faying surface.The static seal circle flexibly roof pressure on dynamic seal ring, under the effect of elastic force, the wearing clearance between them can in time be compensated, and this provides assurance for sealing effect, correspondingly rotating shaft is difficult for having improved the working life of this cooling waterpump because of water inlet produces corrosion.
Description of drawings
Fig. 1 is the longitudinal section of this engine cooling water pump.
Fig. 2 is the A portion enlarged view among Fig. 1.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 the utility model engine cooling water pump is described further.
The structure of the utility model engine cooling water pump comprises the pump housing 2, impeller 1, the rotating shaft 5 of hollow, has impeller cavity in the pump housing 2, and described impeller 1 is connected in the rotating shaft 5 and is positioned at impeller cavity, and an end of rotating shaft 5 stretches out the outside of the pump housing 2.
In the pump housing 2, between impeller cavity and rotating shaft 5, be provided with seal arrangement, it is made of the static seal circle 9 that is connected in the dynamic seal ring in the rotating shaft 5 and be connected on the pump housing 2, wherein static seal circle 9 is a monomer structure, it is generally made by graphite material, and static seal circle 9 flexibly roof pressure on dynamic seal ring.Dynamic seal ring is to constitute by being connected in annular support body 7 in the rotating shaft 5 and the wear-resisting circle 8 that is connected on the support 7, and the opposing end surface of the end face of wear-resisting circle 8 and static seal circle 9 fits together.Wear-resisting circle 8 can select for use stupalith to make.
Be socketed with a bracing ring 11 in the pump housing 2 in the rotating shaft 5, vertical truncation surface of bracing ring 11 is V-shaped, and the both end sides of bracing ring 11 is respectively equipped with export-oriented bulge loop, described static seal circle 9 be arranged on bracing ring 11 one distolateral on.Another of bracing ring 11 be distolateral to be resisted against on the inwall of the pump housing 2, also be socketed with a spring 10 in the outside of bracing ring 11, the two ends of spring 10 act on respectively on the set export-oriented bulge loop of described bracing ring 11 both end sides, so make static seal circle 9 flexibly roof pressure on described wear-resisting circle 8.
Also be provided with piece bearing 6 between the rotating shaft 5 and the pump housing 2, piece bearing 6 is a ball one pole structure, and promptly an existing row steel ball 3 in piece bearing 6 has a row roller 4 again.The all shared outer ring of these steel balls 3 and roller 4, and the corresponding position on the outer circumferential face of rotating shaft 5 is respectively equipped with the raceway groove that matches with described steel ball 3 and roller 4.
Claims (7)
1, a kind of engine cooling water pump, comprise the pump housing, rotating shaft, has impeller cavity in the pump housing, impeller is fixed in the rotating shaft and is positioned at impeller cavity, be provided with seal arrangement between impeller cavity and rotating shaft, it is characterized in that, described seal arrangement comprises dynamic seal ring that is connected in the rotating shaft and the static seal circle that is connected on the pump housing, the static seal circle is a monomer structure, it flexibly roof pressure on dynamic seal ring.
2, engine cooling water pump according to claim 1 is characterized in that, described dynamic seal ring is that the ceramic wear-resisting circle by support and ring-type constitutes, and described static seal circle roof pressure is on wear-resisting circle.
3, engine cooling water pump according to claim 1 and 2 is characterized in that, is provided with spring between the described static seal circle and the pump housing, and spring housing is in rotating shaft, and two ends act on respectively on the static seal circle and the pump housing.
4, engine cooling water pump according to claim 3 is characterized in that, is provided with bracing ring between the described static seal circle and the pump housing, and the static seal circle is located at the end of bracing ring.
5, engine cooling water pump according to claim 4 is characterized in that, described bracing ring longitudinal plane is V-shaped.
6, engine cooling water pump according to claim 1 and 2 is characterized in that, is provided with piece bearing in the described pump housing, and piece bearing is a ball one pole structure, and piece bearing is passed in described rotating shaft.
7, engine cooling water pump according to claim 6 is characterized in that, establishes on the outer circumferential face of described rotating shaft to be used for the raceway groove that matches with piece bearing steel ball and roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720302944XU CN201165999Y (en) | 2007-12-24 | 2007-12-24 | Engine cooling water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720302944XU CN201165999Y (en) | 2007-12-24 | 2007-12-24 | Engine cooling water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165999Y true CN201165999Y (en) | 2008-12-17 |
Family
ID=40191386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720302944XU Expired - Fee Related CN201165999Y (en) | 2007-12-24 | 2007-12-24 | Engine cooling water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165999Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156352A (en) * | 2015-09-30 | 2015-12-16 | 无锡惠山泵业有限公司 | Impeller reversion draining type water pump |
| CN105386983A (en) * | 2015-12-22 | 2016-03-09 | 郑州宇通客车股份有限公司 | Brushless electronic water pump |
-
2007
- 2007-12-24 CN CNU200720302944XU patent/CN201165999Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156352A (en) * | 2015-09-30 | 2015-12-16 | 无锡惠山泵业有限公司 | Impeller reversion draining type water pump |
| CN105386983A (en) * | 2015-12-22 | 2016-03-09 | 郑州宇通客车股份有限公司 | Brushless electronic water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100125 |