CN201944011U - Water pump assembly - Google Patents
Water pump assembly Download PDFInfo
- Publication number
- CN201944011U CN201944011U CN201120019504XU CN201120019504U CN201944011U CN 201944011 U CN201944011 U CN 201944011U CN 201120019504X U CN201120019504X U CN 201120019504XU CN 201120019504 U CN201120019504 U CN 201120019504U CN 201944011 U CN201944011 U CN 201944011U
- Authority
- CN
- China
- Prior art keywords
- water pump
- bearing
- shaft connecting
- shaft pivot
- pivot bearing
- 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
A water pump assembly comprises a water pump casing, a shaft pivot bearing, a water seal and an impeller. A bearing hole is disposed on the water pump casing, the shaft pivot bearing is embedded in the bearing hole, the upper portion of the shaft pivot bearing is connected to a flange, the lower portion of the shaft pivot bearing is connected to the impeller, and the water seal is installed inside the water pump casing and abuts the middle-lower portion of the shaft pivot bearing. The water pump assembly is characterized in that an axial edge sealing is formed at the position of the opening of the bearing hole on the top end face of the casing. Due to the adoption of the axial sealing which is also matched with a step of the bearing hole in the casing, the water pump assembly greatly increases stability of axial fixing of the shaft pivot bearing, lowers the requirements of a bearing pressing process for equipment, reduces magnitude of interference between the water pump casing and the shaft pivot bearing, improves working condition of the shaft pivot bearing, increases service life of a water pump by 10% and meanwhile enhances reliability of the water pump, thereby reducing complaints from customers.
Description
Technical field
The utility model belongs to the pump technology field, and especially a kind of tape spool is to the water pump complement of edge sealing.
Background technique
Water pump generally adopts Al-alloy casing, shaft connecting bearing, water seal, drawn-steel belt pulley and the impeller of die casting to form, wherein shaft connecting bearing is the vital part that influences the water pump complement quality, and the reliability that is connected and fixed between shaft connecting bearing and the water pump cover directly influences the quality of water pump complement.
The evolution process of water pump bearing axial restraint is such: water pump bearing is made up of an axle and two bearings at first, axial restraint is realized by the circlip for shaft or the shaft shoulder, but assembly process is many, assembly precision is difficult to guarantee, development and the particularly fast development of automotive industry of motor mass production along with bearing industry, water pump bearing saves inner ring and becomes a part: shaft connecting bearing, axial restraint is realized by the interference fit between water pump cover and bearing, adopt shaft connecting bearing to be fit to produce in enormous quantities, assembly precision easily guarantees, but interference fit causes the bearing outer ring distortion, and the precision of its raceway be cannot say for sure to demonstrate,prove, and influences the life-span of bearing.The existing patent No. 200520029050.9, auto pump, form by belt pulley, shaft connecting bearing, integrated type water seal, water pump cover, water pump vane, it is characterized in that: water pump vane is positioned at the lower end surface of water pump cover, be installed in the underpart of shaft connecting bearing, one shoulder is arranged in the bearing hole of water pump cover, and water pump cover has a water storage chamber outward, and the lower end surface of water pump cover is connected with engine body by locating stud.It increases by a shoulder in water pump cover, magnitude of interference between shaft connecting bearing outer ring and the water pump cover need only guarantee that the radial internal clearance size to fit of shaft connecting bearing gets final product like this, and axially locating is guaranteed by shoulder, but this structure still can not well solve the fixing of shaft connecting bearing.Along with the requirements at the higher level of market to engine life, how promptly to reduce the magnitude of interference between water pump body and bearing, increase axial restraint, can improve the water pump life-span again simultaneously, be problem anxious to be solved.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of water pump complement at the above-mentioned state of the art, and the structure of water pump cover is improved, and reduces the magnitude of interference between water pump cover and bearing, increases the stability of axial restraint.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of water pump complement, comprise water pump cover, shaft connecting bearing, water seal and impeller, described water pump cover is provided with bearing hole, shaft connecting bearing is inlaid in the bearing hole, the top of described shaft connecting bearing is connected with flange, the bottom is connected with impeller, described water seal is installed in the water pump cover and is tight against with the middle and lower part of shaft connecting bearing, and it is characterized in that: the opening of the upper-end surface bearing hole of described water pump cover forms axial edge sealing.
As improvement, be provided with a step in the bearing hole of described housing, the outer ring of described shaft connecting bearing and bearing hole interference fit, an end of the outer ring of described shaft connecting bearing offsets with step surface, the other end matches axially locating with axial edge sealing.
Further improve, described impeller is arranged at the lower end surface of water pump cover, and is nested with the bottom that is fixed on shaft connecting bearing.
At last, described water pump cover is provided with the O RunddichtringO.
Compared with prior art, advantage of the present utility model is: the utility model improves the structure of water pump cover, opening design at the upper-end surface of water pump cover bearing hole forms axial edge sealing, and match with the step in water pump cover inner bearing hole, increased the stability of shaft connecting bearing axial restraint greatly, reduced of the requirement of pressing bearing operation equipment; Reduce the magnitude of interference between water pump cover and shaft connecting bearing, improve the operating mode of bearing, can improve the water pump life-span 10%; Improved the reliability of water pump simultaneously, reduced market and complain.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model;
Fig. 2 is the structure sectional view of traditional water pump assembly.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of water pump complement, comprise water pump cover 3, shaft connecting bearing 2, water seal 4 and impeller 6, described housing 3 is provided with bearing hole, shaft connecting bearing 2 is inlaid in the bearing hole, and the upper end of described shaft connecting bearing 2 is connected with belt pulley by flange 1, and the lower end of shaft connecting bearing 2 is connected with impeller 6, described water seal 4 is installed in the water pump cover 3 and is tight against with the middle and lower part of shaft connecting bearing 2, and the opening of the upper-end surface bearing hole of described housing 3 forms axial edge sealing 7; Be provided with a step 8 in the bearing hole of housing 3, during the water pump complement assembling, outer ring one end of shaft connecting bearing 2 is near step surface, the other end matches with axial edge sealing 7 and carries out axially locating, magnitude of interference between the bearing hole of the outer ring of shaft connecting bearing 2 and housing 3 only need guarantee that the radial internal clearance size to fit of shaft connecting bearing 2 gets final product like this, and axial magnitude of interference just guarantees by step 8 and axial edge sealing 7, just can guarantee the stability between water pump complement when work shaft connecting bearing 2 and the housing 3, and reduce the magnitude of interference of 2 of water pump cover 3 and shaft connecting bearings; Described impeller 6 is arranged at the lower end surface of water pump cover 3, and is nested with the bottom that is fixed on shaft connecting bearing 2; Described water pump cover 3 is provided with O RunddichtringO 5, with the sealing that guarantees that water pump complement is connected with motor.
Claims (4)
1. water pump complement, comprise water pump cover, shaft connecting bearing, water seal and impeller, described water pump cover is provided with bearing hole, shaft connecting bearing is inlaid in the bearing hole, the top of described shaft connecting bearing is connected with flange, the bottom is connected with impeller, described water seal is installed in the water pump cover and is tight against with the middle and lower part of shaft connecting bearing, and it is characterized in that: the opening of the upper-end surface bearing hole of described water pump cover forms axial edge sealing.
2. water pump complement according to claim 1, it is characterized in that being provided with a step in the bearing hole of described housing, the outer ring of described shaft connecting bearing and bearing hole interference fit, an end of the outer ring of described shaft connecting bearing offsets with step surface, the other end matches axially locating with axial edge sealing.
3. water pump complement according to claim 1 is characterized in that described impeller is arranged at the lower end surface of water pump cover, and is nested with the bottom that is fixed on shaft connecting bearing.
4. water pump complement according to claim 1 is characterized in that described water pump cover is provided with the O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120019504XU CN201944011U (en) | 2011-01-18 | 2011-01-18 | Water pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120019504XU CN201944011U (en) | 2011-01-18 | 2011-01-18 | Water pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944011U true CN201944011U (en) | 2011-08-24 |
Family
ID=44471355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120019504XU Expired - Fee Related CN201944011U (en) | 2011-01-18 | 2011-01-18 | Water pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062119A (en) * | 2011-10-20 | 2013-04-24 | 株式会社山田制作所 | Water pump |
| CN109388196A (en) * | 2017-08-08 | 2019-02-26 | 连讯通信(天津)有限公司 | Rack-mounted box |
-
2011
- 2011-01-18 CN CN201120019504XU patent/CN201944011U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062119A (en) * | 2011-10-20 | 2013-04-24 | 株式会社山田制作所 | Water pump |
| CN103062119B (en) * | 2011-10-20 | 2016-08-03 | 株式会社山田制作所 | Water pump |
| CN109388196A (en) * | 2017-08-08 | 2019-02-26 | 连讯通信(天津)有限公司 | Rack-mounted box |
| CN109388196B (en) * | 2017-08-08 | 2024-06-04 | 连讯通信(天津)有限公司 | Frame type box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20110824 Termination date: 20180118 |