CN219220807U - Improved bearing for car water pump - Google Patents
Improved bearing for car water pump Download PDFInfo
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- CN219220807U CN219220807U CN202320237091.5U CN202320237091U CN219220807U CN 219220807 U CN219220807 U CN 219220807U CN 202320237091 U CN202320237091 U CN 202320237091U CN 219220807 U CN219220807 U CN 219220807U
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- water pump
- belt pulley
- bearing
- water
- hole
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Abstract
The utility model discloses an improved bearing for a car water pump, which comprises a belt pulley, a water pump bearing, a water seal, a shaft, a water pump body and an impeller, wherein the water pump bearing is assembled on the water pump body, an installation inner hole is arranged on the belt pulley, the installation inner hole of the belt pulley is the same as the outer circle length of the belt pulley, the belt pulley is assembled and connected with an outer ring of the water pump bearing through the installation inner hole, the belt pulley is provided with an installation hole, one end of the shaft is assembled and connected with the installation hole of the belt pulley through interference fit, the lower end of the water pump body is provided with a water chamber, the impeller is arranged at the lower end of the shaft and is positioned in the water chamber, the water pump body is provided with a water sealing hole, and the water seal is assembled in the water sealing hole of the water pump body through interference fit. The utility model relates to the technical field of automobile water pumps, and particularly provides an improved bearing for a car water pump, which can improve the running stability of the automobile water pump, reduce the noise vibration of the water pump, improve the bearing capacity of the bearing and prolong the service life of the bearing.
Description
Technical Field
The utility model relates to the technical field of automobile water pumps, in particular to an improved bearing for a car water pump.
Background
With the development of the automobile industry, the quality requirements of consumers on automobiles are increasingly higher, and the requirements on noise reduction and vibration reduction are extremely high in all aspects from the aspect of comfort, so as to strive to control and reduce the vibration and noise of the whole automobile. From the aspect of reliability, the operation that requires every spare part as safe and stable as far as possible is longer, and most car water pumps at present adopt axle to connect bearing structure, and after axle even bearing assembly, the pulley pressure equipment is on the center pin of bearing, belongs to cantilever bearing structure, and this structure appears following problem easily in actual operation process: in the prior art, a belt pulley is pressed on a central shaft of a shaft bearing, a stress point of the belt pulley is suspended, when the belt pulley works, the belt pulley is stressed by a driving belt, the belt pulley is required to transmit torque to drive an impeller to drive water, a bearing hole of the belt pulley is required to be subjected to a circumferential reaction force, under the action of double forces, the inner hole of the belt pulley is stressed for a long time, the bearing hole of the belt pulley has a trend of becoming larger, the risk of falling off of the belt pulley is increased, the jumping amount of the belt pulley of a water pump assembly is influenced by the processing precision of the belt pulley, and the jumping amount of the belt pulley before the assembly is generally controlled within 0.15 due to the fact that the central hole of the belt pulley is shorter; the runout of the shaft connecting bearing central shaft relative to the bearing outer ring belongs to a cantilever structure, and the runout is generally controlled within 0.05; the fit of the interference fit of the bearing bore of the pulley and the central shaft of the shaft-to-bearing is affected by these factors: in the interference press mounting process, as Kong Xiaozhou is large and Kong Ruanzhou is hard, the bearing hole material of the belt pulley is easy to push and roll, the original profile of the inner hole is damaged, after the inner hole is matched with the shaft, the joint degree of the hole shaft cannot reach the initial state of the inner hole, relative deflection can occur, the matched length of the hole and the shaft is relatively short, deflection generated by the shaft cannot be corrected, the runout can be continuously increased, the belt pulley is easy to be caused to runout, noise vibration is large, the service life of the belt pulley is prolonged, and therefore improvement is required to solve the existing problems.
Disclosure of Invention
Aiming at the situation, in order to overcome the prior technical defects, the utility model provides the improved bearing for the car water pump, which can improve the running stability of the car water pump, reduce the noise vibration of the water pump, improve the bearing capacity of the bearing and prolong the service life of the bearing.
The technical scheme adopted by the utility model is as follows: the utility model provides an improved generation is bearing for car water pump, including belt pulley, water pump bearing, water seal, axle, water pump body and impeller, water pump bearing hole is equipped with the installation hole on the belt pulley through interference fit on the water pump body, the installation hole of belt pulley with belt pulley excircle length is the same, the belt pulley passes through installation hole and water pump bearing outer lane assembled connection, belt pulley and water pump bearing outer lane clearance-free transmission, be equipped with the mounting hole on the belt pulley, the one end of axle passes through interference fit and the mounting hole assembled connection of belt pulley, the water pump body lower extreme is equipped with the hydroecium, the impeller is installed in the lower extreme of axle and is located the water chamber, be equipped with the water sealing hole on the water pump body, the water seal passes through interference fit and assembles in the water sealing hole of water pump body. .
Further, the water pump bearing is a deep groove ball bearing.
Further, the inner hole of the water seal is in interference fit with the shaft, and the water chamber is sealed by laminating and rotating the water seal static ring.
Further, the impeller is fitted to the shaft by an interference fit.
Further, the belt pulley is installed with the water pump bearing through interference fit.
Further, a drive belt is mounted on the pulley.
Further, the installation inner hole of the belt pulley is of a thin-wall structure.
The beneficial effects obtained by the utility model by adopting the structure are as follows: the utility model relates to an improved bearing for a car water pump, which has the advantages that: the belt pulley, the outer ring of the deep groove ball bearing, the shaft, the water seal and the impeller are assembled into a whole which can not rotate relatively, because the tension force of the driving belt directly acts on the rolling body of the water pump bearing, the acting force which enlarges the inner hole of the belt pulley can not be generated, when the water pump runs, the belt pulley drives the shaft to bear the circumferential reaction force generated by the transmission torque, namely the water-fetching acting force of the impeller, so that the belt pulley is stressed little, and the falling risk is reduced; in the product, the lengths of the installation inner hole and the outer circle of the belt pulley are equal, the positions are equal, the processing can ensure that the runout of the outer circle of the belt pulley relative to the installation inner hole is within 0.05, namely the radial play of the outer ring of the water pump bearing relative to the inner ring can be within 0.02, and the installation inner hole of the belt pulley is of a thin-wall structure and has certain elasticity, so that the rolling phenomenon generated by the installation inner hole is very slight, the assembly fitting degree of the belt pulley is better, the matching length of the installation inner hole of the belt pulley is longer, and the skew generated in the assembly process can be corrected better; the diameter of the outer ring of the water pump bearing is increased compared with that of the shaft-connected bearing in the prior art, and the number of steel balls in a single row of the water pump bearing is increased compared with that of the shaft-connected bearing due to the adoption of the deep groove ball bearing, so that the rated load is relatively increased, and under the same use condition, the rated load is provided with a surplus structure, so that the running reliability, the stability, the noise vibration, the bearing performance and the service life of the water pump bearing are improved.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the whole structure of a bearing for an original car water pump;
fig. 2 is a schematic diagram of the whole structure of an improved bearing for a car water pump.
Wherein, 1, a belt pulley, 2, a water pump bearing, 3, a water seal, 4, a water pump body, 5, impellers, 6, a shaft, 7, a water chamber, 8 and an installation inner hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1 and 2, the improved car water pump bearing provided by the scheme comprises a belt pulley 1, a water pump bearing 2, a water seal 3, a water pump body 4, an impeller 5 and a shaft 6, wherein the water pump bearing 2 is assembled on the water pump body 4 through interference fit, an installation inner hole 8 is formed in the belt pulley 1, the installation inner hole 8 of the belt pulley 1 is identical with the outer circle length of the belt pulley 1, the belt pulley 1 is assembled and connected with the outer ring of the water pump bearing 2 through the installation inner hole 8, the belt pulley 1 and the outer ring of the water pump bearing 2 are in gapless transmission, an installation hole is formed in the belt pulley 1, one end of the shaft 6 is assembled and connected with the installation hole of the belt pulley 1 through interference fit, a water chamber 7 is arranged at the lower end of the water pump body 4, the impeller 5 is installed at the lower end of the shaft 6 and is positioned in the water chamber 7, the water pump body 4 is provided with a water seal hole, and the water seal 3 is assembled in the water seal hole of the water pump body 4 through interference fit.
Further, the water pump bearing 2 is a deep groove ball bearing.
As shown in fig. 2, the inner hole of the water seal 3 is in interference fit with the shaft 6, and the water chamber 7 is sealed by the joint rotation of the dynamic and static rings of the water seal 3.
As shown in fig. 2, the impeller 5 is fitted on the shaft 6 by interference fit.
As shown in fig. 2, the pulley 1 is mounted with the water pump bearing 2 by an interference fit.
As shown in fig. 2, a drive belt is mounted on the pulley 1.
As shown in fig. 2, the installation inner hole of the pulley 1 has a thin-wall structure.
During specific use, the outer ring of the belt pulley 1 and the deep groove ball bearing 6, the shaft 6, the water seal 3 and the impeller 5 are assembled into a whole which cannot rotate relatively, the belt pulley 1 rotates under the drive of the driving belt and drives the impeller 5 to rotate along with the whole, centrifugal water pumping is achieved, because the tension force of the driving belt directly acts on the rolling bodies of the water pump bearing 2, the action force which enables the inner hole of the belt pulley 1 to become large is not generated, when the water pump is operated, the belt pulley 1 drives the shaft 6 to bear only the circumferential reaction force generated by the transmission torque, namely the water pumping action force of the impeller 5, therefore, the belt pulley 1 is small in stress, the falling risk is reduced, because the installation inner hole 8 and the outer circle of the belt pulley 1 are equal in length, the position is equal, the processing can ensure that the jump of the outer circle of the belt pulley 1 relative to the installation inner hole 8 is within 0.05, the radial play of the bearing 2 is guaranteed to be within 0.02, because the installation inner hole 8 of the belt pulley 1 is of a thin-wall structure, the rolling phenomenon generated by the installation inner hole 8 is very slight, the assembly laminating degree of the belt pulley 1 is good, the installation inner hole 8 is only subjected to the circumferential reaction force generated by the transmission torque, namely the water pumping action force generated by the impeller 5, the inner hole is good in the diameter of the bearing 1 is increased relative to the diameter of the bearing 1, the water pump bearing is increased relative to the diameter is compared with the rated load, compared with the bearing 2, the rated load can be increased, compared with the rated load can be controlled by the diameter of the bearing in the bearing, and the product is increased in the diameter is compared with the prior art, and has the rated load, and the diameter is increased, and the rated load can be compared with the product.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. An improved car water pump bearing is characterized in that: including belt pulley, water pump bearing, water seal, axle, water pump body and impeller, the water pump bearing hole passes through interference fit and assembles on the water pump body, be equipped with the installation hole on the belt pulley, the installation hole of belt pulley with belt pulley excircle length is the same, the belt pulley passes through installation hole and water pump bearing outer lane assembly connection, belt pulley and water pump bearing outer lane clearance-free transmission, be equipped with the mounting hole on the belt pulley, the one end of axle passes through interference fit and the mounting hole assembly connection of belt pulley, the water pump body lower extreme is equipped with the hydroecium, the impeller is installed in the lower extreme of axle and is located the water chamber, be equipped with the water seal hole on the water pump body, the water seal passes through interference fit and assembles in the water seal hole of the water pump body.
2. An improved car water pump bearing as defined in claim 1, wherein: the water pump bearing is a deep groove ball bearing.
3. An improved car water pump bearing as defined in claim 2, wherein: the inner hole of the water seal is in interference fit with the shaft, and the water seal is realized by laminating and rotating the water seal static ring.
4. An improved car water pump bearing according to claim 3, wherein: the impeller is assembled on the shaft by an interference fit.
5. An improved car water pump bearing as defined in claim 4, wherein: the belt pulley and the water pump bearing are installed through interference fit.
6. An improved car water pump bearing as defined in claim 5, wherein: the belt pulley is provided with a driving belt.
7. The improved car water pump bearing of claim 6, wherein: the installation inner hole of the belt pulley is of a thin-wall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320237091.5U CN219220807U (en) | 2023-02-17 | 2023-02-17 | Improved bearing for car water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320237091.5U CN219220807U (en) | 2023-02-17 | 2023-02-17 | Improved bearing for car water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219220807U true CN219220807U (en) | 2023-06-20 |
Family
ID=86760013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320237091.5U Active CN219220807U (en) | 2023-02-17 | 2023-02-17 | Improved bearing for car water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219220807U (en) |
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2023
- 2023-02-17 CN CN202320237091.5U patent/CN219220807U/en active Active
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