CN215890580U - Impeller structure of automobile electronic water pump - Google Patents
Impeller structure of automobile electronic water pump Download PDFInfo
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- CN215890580U CN215890580U CN202123371844.1U CN202123371844U CN215890580U CN 215890580 U CN215890580 U CN 215890580U CN 202123371844 U CN202123371844 U CN 202123371844U CN 215890580 U CN215890580 U CN 215890580U
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- shaft sleeve
- bearing
- step surface
- cover plate
- sleeve
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Abstract
The utility model discloses an impeller structure of an automobile electronic water pump, which comprises an impeller, a shaft sleeve, a front bearing and a rear bearing, wherein the rear part of the outer side of the shaft sleeve is provided with an annular mounting groove, an iron core is arranged in the annular mounting groove, the end cover also comprises an end cover, the outer part of one side of the front part of the rear bearing is concavely provided with a first step surface, the peripheral side of the rear end of the rear bearing is concavely provided with a first annular groove, the rear part of an inner hole of the shaft sleeve is radially inwards provided with a first limiting table, the first limiting table is limited and arranged on the first step surface, the end cover comprises a cover plate provided with a central hole, a limiting sleeve is convexly arranged at the central hole on the cover plate, the cover plate is fixedly arranged on the rear end surface of the shaft sleeve, the limiting sleeve extends forwards into the inner hole of the shaft sleeve and abuts against the first annular groove, and the outer part of the front end surface of the cover plate is pressed on the rear end of the iron core; the axial movement of the rear bearing is prevented, the structure is simple and reliable, the installation is convenient, the manufacturing time is greatly shortened, and the manpower and the equipment are saved.
Description
Technical Field
The utility model relates to an impeller structure, in particular to an impeller structure of an automobile electronic water pump.
Background
The automobile electronic water pump is used as an important part in an automobile heat management system, a controller drives a stator and a rotor to rotate to drive a impeller to enable cooling liquid to flow in the whole system in a circulating mode to achieve the purposes of cooling and heating, in some automobile electronic water pumps, a shaft sleeve is fixedly arranged at the rear part of the impeller backwards, and is sleeved on a fixed shaft in the electronic water pump to rotate through a bearing sleeve arranged inside The bearing life is improved.
However, the prior art still has the following technical problems: on one hand, the bearing outer ring and the shaft sleeve are in interference fit, a press is required for press mounting, the installation is complicated, and the manufacturing cost is high; on the other hand, the bearing frame need design the retaining ring groove and be used for spacing to the retaining ring, and processing is comparatively complicated and installation retaining ring for the bearing need be with the help of manpower or equipment, wastes time and energy.
Disclosure of Invention
The utility model aims to provide an impeller structure of an automobile electronic water pump, which has the advantages of simple structure, convenience in installation and low manufacturing cost.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an impeller structure of automotive electronics water pump, includes impeller, fixed axial setting the rear portion of impeller the axle sleeve, set up front bearing and the rear bearing in the axle sleeve, front bearing set up the front portion of the hole of axle sleeve and with the pore wall interference fit of the hole of axle sleeve, the rear bearing set up the rear portion of the hole of axle sleeve, the outside rear portion of axle sleeve be provided with the annular mounting groove, the annular mounting groove in be provided with the iron core, still include the end cover, the anterior outside of one side of rear bearing sunken be provided with first step face, the rear end week side of rear bearing sunken be provided with first annular groove, the rear portion radial inside of the hole of axle sleeve be provided with first spacing platform, first spacing setting of platform be in first step face on, the end cover including the apron that is provided with the centre bore, the cover plate is provided with a limiting sleeve in a protruding mode at the central hole, the cover plate is fixedly arranged on the rear end face of the shaft sleeve, the limiting sleeve extends forwards into the inner hole of the shaft sleeve and abuts against the first annular groove, and the outer portion of the front end face of the cover plate is in compression joint with the rear end of the iron core.
The front part of the rear bearing and the outer part of the other side symmetrical to the first step surface are concavely provided with second step surfaces, the rear part of the inner hole of the shaft sleeve is radially and inwards provided with a second limiting table, and the second limiting table is arranged on the second step surfaces in a limiting way. The relative motion between the rear bearing and the shaft sleeve is prevented, and the service life of the rear bearing is prolonged.
The outside sunken third step face that is provided with in one side at front bearing's rear portion, front bearing's front end week side sunken second annular groove that is provided with, the front end of axle sleeve stretch into the central hole of impeller, the hole of axle sleeve be located the part radial inwards of central hole be provided with the spacing platform of third, the spacing setting of platform of third be in the third step face on, the anterior inwards arch of interior pore wall of axle sleeve be provided with the spacing portion of annular, the spacing portion joint of annular in the second annular groove in. Through the cooperation of the third limiting table and the third step surface, the axial relative motion of the front bearing is prevented, the installation is convenient, and the structure is reliable.
The rear part of the front bearing and the outer part of the other side symmetrical to the third step surface are concavely provided with a fourth step surface, the inner hole of the shaft sleeve is positioned in the radial inward part of the central inner hole and is provided with a fourth limiting table, and the fourth limiting table is arranged on the fourth step surface in a limiting way. Further limiting the rotational and axial relative movement of the front bearing.
The cover plate is fixed on the rear end face of the shaft sleeve through ultrasonic welding. And fusing and fixing the shaft sleeve and the cover plate at the intersection part of the shaft sleeve and the cover plate through ultrasonic welding equipment.
The utility model has the advantages that the first limiting table is limited and arranged on the first step surface, and the first limiting table and the first step surface are mutually attached through two planes, thereby playing a limiting role and preventing the relative movement between the rear bearing and the shaft sleeve; the cover plate is fixedly arranged on the rear end face of the shaft sleeve, the limiting sleeve extends forwards into an inner hole of the shaft sleeve and abuts against the first annular groove, and is matched with the first limiting table to prevent the rear bearing from axially moving.
Drawings
FIG. 1 is a diagram showing an overall structure of the first embodiment;
FIG. 2 is an exploded view of the whole structure of the first embodiment;
FIG. 3 is a partial exploded view of the first embodiment;
FIG. 4 is an exploded view of the second embodiment;
FIG. 5 is a sectional view of the second embodiment.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows: as shown in fig. 1, 2 and 3, an impeller structure of an automotive electronic water pump comprises an impeller 1, a shaft sleeve 2 fixed and axially arranged at the rear part of the impeller 1, a front bearing 3 and a rear bearing 4 arranged in the shaft sleeve 2, and an end cover 5, wherein the front bearing 3 is arranged at the front part of an inner hole of the shaft sleeve 2 and is in interference fit with a hole wall of the inner hole of the shaft sleeve 2, the rear bearing 4 is arranged at the rear part of the inner hole of the shaft sleeve 2, an annular mounting groove 21 is arranged at the rear part of the outer side of the shaft sleeve 2, an iron core 6 is arranged in the annular mounting groove 21, a first step surface 41 is concavely arranged at the outer part of one side of the front part of the rear bearing 4, a first annular groove 42 is concavely arranged at the peripheral side of the rear end of the rear bearing 4, a first limit table (not shown in the figure) is radially inwards arranged at the rear part of the inner hole of the shaft sleeve 2, the first limit table (not shown in the figure) is arranged on the first step surface 41 in a limit way, the end cover 5 comprises a cover plate 51 provided with a central hole, a limiting sleeve 52 is convexly arranged at the central hole on the cover plate 51, the cover plate 51 is fixedly arranged on the rear end surface of the shaft sleeve 2, the limiting sleeve 52 extends forwards into the inner hole of the shaft sleeve 2 and abuts against the first annular groove 42, the outer part of the front end surface of the cover plate 51 is pressed at the rear end of the iron core 6, and the cover plate 51 is fixed on the rear end surface of the shaft sleeve 2 through ultrasonic welding; the ultrasonic welding process is that the shaft sleeve 2 and the cover plate 51 are fused and fixed at the intersection part of the shaft sleeve 2 and the cover plate 51 through ultrasonic welding equipment;
a second step surface (not shown) is concavely arranged on the other side of the front part of the rear bearing 4, which is symmetrical to the first step surface 41, a second limiting table 22 is arranged radially inwards at the rear part of the inner hole of the shaft sleeve 2, and the second limiting table 22 is limited on the second step surface (not shown).
Example two: as shown in fig. 4 and 5, the remaining parts are the same as the first embodiment, except that a third step surface 31 is concavely arranged on one side of the rear part of the front bearing 3, a second annular groove 32 is concavely arranged on the peripheral side of the front end of the front bearing 3, the front end of the shaft sleeve 2 extends into the central inner hole of the impeller 1, a third limit table (not shown) is arranged radially inwards at the part of the inner hole of the shaft sleeve 2, which is located in the central inner hole of the impeller 1, the third limit table (not shown) is limited and arranged on the third step surface 31, an annular limit part 23 is convexly arranged inwards at the front part of the inner hole wall of the shaft sleeve 2, and the annular limit part 23 is clamped in the second annular groove 32;
a fourth step surface (not shown) is concavely arranged on the outer part of the other side of the rear part of the front bearing 3, which is symmetrical to the third step surface 31, a fourth limiting table 24 is arranged radially inwards at the part of the inner hole of the shaft sleeve 2, which is positioned in the central inner hole of the impeller 1, and the fourth limiting table 24 is arranged on the fourth step surface (not shown) in a limiting way.
Claims (5)
1. The utility model provides an impeller structure of automotive electronics water pump, includes impeller, fixed axial setting the rear portion of impeller the axle sleeve, set up and be in the axle sleeve in front bearing and the rear bearing, the front bearing set up the front portion of the hole of axle sleeve and with the pore wall interference fit of the hole of axle sleeve, the rear bearing set up the rear portion of the hole of axle sleeve, the outside rear portion of axle sleeve be provided with the annular mounting groove, the annular mounting groove in be provided with the iron core, its characterized in that still includes the end cover, the anterior one side outside of rear bearing sunken be provided with first step face, the rear end week side of rear bearing sunken be provided with first annular groove, the rear portion radial inside of the hole of axle sleeve be provided with first spacing platform, first spacing platform spacing setting be in first step face on, the end cover comprises an cover plate provided with a center hole, a limiting sleeve is arranged on the cover plate in a protruding mode at the center hole, the cover plate is fixedly arranged on the rear end face of the shaft sleeve, the limiting sleeve stretches forwards into an inner hole of the shaft sleeve and abuts against the first annular groove, and the outer portion of the front end face of the cover plate is in compression joint with the rear end of the iron core.
2. The impeller structure of the automobile electronic water pump as claimed in claim 1, wherein a second step surface is concavely provided at the front part of the rear bearing and the outside of the other side of the first step surface, which is symmetrical, and a second limit table is provided radially inward at the rear part of the inner hole of the shaft sleeve, the second limit table being limited on the second step surface.
3. The impeller structure of the automobile electronic water pump as claimed in claim 1, wherein a third step surface is recessed from an outer portion of one side of the rear portion of the front bearing, a second annular groove is recessed from a peripheral side of the front end of the front bearing, the front end of the shaft sleeve extends into the central bore of the impeller, a third limiting table is radially inwardly disposed on a portion of the central bore in the inner bore of the shaft sleeve, the third limiting table is limited and disposed on the third step surface, an annular limiting portion is inwardly disposed on a front portion of the inner bore wall of the shaft sleeve in a protruding manner, and the annular limiting portion is clamped in the second annular groove.
4. The impeller structure of the automobile electronic water pump as claimed in claim 3, wherein a fourth step surface is concavely provided at the rear of the front bearing and the outside of the other side of the third step surface, which is symmetrical with the third step surface, a fourth limit table is provided radially inward of the part of the inner bore of the shaft sleeve, which is located in the central inner bore, and the fourth limit table is limit-provided on the fourth step surface.
5. The impeller structure of the automobile electronic water pump as claimed in claim 1, wherein the cover plate is fixed to the rear end surface of the shaft sleeve by ultrasonic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123371844.1U CN215890580U (en) | 2021-12-30 | 2021-12-30 | Impeller structure of automobile electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123371844.1U CN215890580U (en) | 2021-12-30 | 2021-12-30 | Impeller structure of automobile electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215890580U true CN215890580U (en) | 2022-02-22 |
Family
ID=80251253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123371844.1U Active CN215890580U (en) | 2021-12-30 | 2021-12-30 | Impeller structure of automobile electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215890580U (en) |
-
2021
- 2021-12-30 CN CN202123371844.1U patent/CN215890580U/en active Active
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