CN212323833U - Water pump permanent magnet rotor - Google Patents
Water pump permanent magnet rotor Download PDFInfo
- Publication number
- CN212323833U CN212323833U CN202021024524.1U CN202021024524U CN212323833U CN 212323833 U CN212323833 U CN 212323833U CN 202021024524 U CN202021024524 U CN 202021024524U CN 212323833 U CN212323833 U CN 212323833U
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- arc
- permanent magnet
- disc
- rotor
- shaped
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Abstract
The utility model discloses a water pump permanent magnet rotor, which comprises a rotor shaft, a rear supporting seat and a front supporting disk, wherein the supporting seat and the front supporting disk are arranged at intervals, the rear supporting seat is provided with a rear supporting disk, the rear supporting disk and the front supporting disk are both arranged in a circular shape, the central line of the rear supporting disk and the front supporting disk coincides with the central axis of the rotor shaft, and the outer diameter of the rear supporting disk is the same as that of the front supporting disk; the rotor shaft sleeve is provided with a surface-mounted permanent magnet rotor positioned between the rear supporting disk and the front supporting disk, the surface-mounted permanent magnet rotor and the front supporting disk are arranged at intervals, and the maximum outer diameter of the surface-mounted permanent magnet rotor is smaller than the outer diameters of the rear supporting disk and the front supporting disk; the rotor shaft is also sleeved with a shaft liner pipe, and the outer peripheral surfaces of the rear supporting disk and the front supporting disk are respectively in threaded connection with the inner peripheral surface of the shaft liner pipe; the front supporting disc is provided with a glue injection hole and an exhaust hole, and an adhesive curing structure is filled in the inner space of the shaft liner tube. The magnetic chip blocking prevention device can prevent the occurrence of the situation that the rotor and the stator of the water pump are blocked by the magnetic chips, and prolong the service life of the water pump.
Description
Technical Field
The utility model relates to a water pump rotor, in particular to water pump permanent magnet rotor.
Background
The working principle of the permanent magnet water pump is as follows: the permanent magnet rotor in the pump starts to start and drives the blades to rotate under the action of magnetic force in an electromagnetic field, and when the permanent magnet rotor generates centrifugal action, water is pressed out.
The permanent magnet rotor of the water pump comprises a rotor shaft and a permanent magnet, and the rotor shaft and the permanent magnet are fixed into a whole by an injection molding mode. However, since the permanent magnet belongs to ceramics, the permanent magnet is fragile, and particularly after the permanent magnet is magnetized, magnetic dust is easily generated due to the magnetic force action of the permanent magnet and other magnetizers such as iron workpieces; because the magnetic debris is specific magnetism, these magnetic debris still can adsorb on the permanent magnet, in case the permanent magnet rotor is installed on the water pump, the magnetic debris breaks away from the permanent magnet under the produced centrifugal action of water pump permanent magnet rotor in the use of water pump, the magnetic debris appears even makes water pump rotor and stator card die and damage the condition of water pump.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a water pump permanent magnet rotor, its condition that can prevent the card of magnetic bits dead water pump rotor and stator takes place, prolongs the life of water pump.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a water pump permanent magnet rotor comprises a rotor shaft, a rear supporting seat fixedly sleeved on the rotor shaft and a front supporting disc sleeved on the rotor shaft, wherein the supporting seat and the front supporting disc are arranged at intervals, the rear supporting seat is provided with a thrust bearing disc and a rear supporting disc, the rear supporting disc is positioned between the front supporting disc and the thrust bearing disc, one side, far away from the rear supporting seat, of the front supporting disc is provided with a front bearing disc, the thrust bearing disc, the rear supporting disc, the front supporting disc and the front bearing disc are all arranged in a circular shape, the central lines of the thrust bearing disc, the rear supporting disc, the front supporting disc and the front bearing disc are superposed with the central axis of the rotor shaft, the outer diameter of the thrust bearing disc is larger than that of the rear supporting disc, the outer diameter of the rear supporting disc is the same as that of the front supporting disc, and the outer diameter of the front supporting disc is larger than that of the rear supporting disc;
the rotor shaft sleeve is provided with a surface-mounted permanent magnet rotor, the surface-mounted permanent magnet rotor is positioned between the rear supporting disk and the front supporting disk, one end of the surface-mounted permanent magnet rotor is abutted against the rear supporting disk, the other end of the surface-mounted permanent magnet rotor is arranged at an interval with the front supporting disk, and the maximum outer diameter of the surface-mounted permanent magnet rotor is smaller than the outer diameters of the rear supporting disk and the front supporting disk;
the rotor shaft is further sleeved with a shaft lining pipe, and the outer peripheral surfaces of the rear supporting disk and the front supporting disk are respectively in threaded connection with the inner peripheral surface of the shaft lining pipe;
the front support disc is provided with a glue injection hole and an exhaust hole in the non-covering area of the front bearing disc, and an adhesive curing structure is filled in the inner space of the shaft liner tube.
Through adopting above-mentioned technical scheme, establish the adhesive through pouring into the inside of injecting glue hole to bushing pipe, bushing pipe's inside air is discharged through the exhaust hole, and after the inside space in bushing pipe was filled up to the adhesive, the adhesive was through the solidification back, lies in bushing pipe's each parts bonding fixed formation a whole, even adsorb on the permanent magnet has the magnetic debris, the magnetic debris also is fixed in the adhesive solidification structure. Therefore, the magnetic chips can not be separated from the permanent magnet under the centrifugal action generated by the permanent magnet rotor of the water pump in the use process of the water pump, the situation that the rotor and the stator of the water pump are blocked by the magnetic chips is prevented, and the service life of the water pump is prolonged.
The utility model discloses further set up to: one side of the front supporting disc close to the surface-mounted permanent magnet rotor is provided with an annular glue guiding groove, and the annular glue guiding groove is respectively communicated with the glue injection hole and the exhaust hole.
By adopting the technical scheme, because the friction force between the adhesive and the interface is greater than the internal friction force of the adhesive, the adhesive guide groove is used for increasing the flowing space of the adhesive so as to enhance the fluidity of the adhesive, and the adhesive is easier to fill the inner gap of the bushing pipe.
The utility model discloses further set up to: the surface-mounted permanent magnet rotor comprises a rotor core and a plurality of arc permanent magnets, the plurality of arc permanent magnets surround the rotor core to form a circular ring shape, and the inner arc surfaces of the plurality of arc permanent magnets are in magnetic connection with the outer peripheral surface of the rotor core; the rotor core is close to the one end of preceding supporting disk and has been seted up a plurality of recesses of gluing of leading, the quantity of leading gluey recess and circular arc permanent magnet equals, lead gluey recess around rotor core's central line evenly distributed, the extension line of leading gluey recess intersects with rotor core's central line respectively and coincides with the binding face of two adjacent circular arc permanent magnets.
By adopting the technical scheme, the adhesive injected into the bushing pipe is guided into the gap between the adjacent circular arc permanent magnets along the adhesive guide groove.
The utility model discloses further set up to: the arc permanent magnet comprises an outer arc surface, an inner arc surface and two straight surfaces, a chamfer is arranged between the outer arc surface and the straight surface of each arc permanent magnet, and the chamfers of two adjacent arc permanent magnets are in butt joint to form a glue guide channel.
By adopting the technical scheme, on one hand, the chamfer angle is arranged to increase the gap space between the two adjacent arc-shaped permanent magnets, so that the adhesive is conveniently filled in the gap between the two adjacent arc-shaped permanent magnets, and on the other hand, the adhesive guiding channel formed by the butt joint of the chamfer angles of the two adjacent arc-shaped permanent magnets is convenient for guiding the adhesive from the front supporting disc to the rear supporting disc.
The utility model discloses further set up to: an annular boss and a plurality of arc-shaped bosses are fixedly arranged on one side, close to the front support plate, of the rear support plate, arc centers of the arc-shaped bosses and the ring center of the annular boss are located on a central line of the rear support plate, the arc bosses are uniformly distributed along the circumference of the ring center of the annular boss, and the annular boss is located in an area range surrounded by the arc bosses; the arc-shaped bosses correspond to the arc-shaped permanent magnets one by one, one ends of the arc-shaped permanent magnets are abutted to the arc-shaped bosses, and one ends of the rotor cores are abutted to the circular-ring-shaped bosses and the arc-shaped bosses.
By adopting the technical scheme, the rotor core is abutted against the circular-ring-shaped boss and the plurality of circular-arc-shaped bosses, the circular-arc-shaped permanent magnets are abutted against the circular-arc-shaped bosses, the surface-mounted permanent magnet rotor and the rear supporting disk are arranged at intervals, the adhesive is filled in the space between the surface-mounted permanent magnet rotor and the rear supporting disk, and the bonding strength of the surface-mounted permanent magnet rotor and the rear supporting disk is enhanced.
The utility model discloses further set up to: the rotor core is close to the one end of back supporting disk and has seted up the hemisphere recess, ring shape boss sets firmly the hemisphere boss, the hemisphere boss peg graft in the hemisphere recess.
By adopting the technical scheme, the arc-shaped permanent magnet is enabled to abut against the arc-shaped boss, and the stability of the arc-shaped permanent magnet when the adhesive is poured into the shaft liner tube is enhanced.
The utility model discloses further set up to: the semi-spherical grooves are arranged in a plurality of forms, the semi-spherical bosses are arranged in a plurality of forms, and the semi-spherical grooves correspond to the semi-spherical bosses one to one.
By adopting the technical scheme, the butting positioning of the arc-shaped permanent magnet and the arc-shaped boss is further enhanced.
The utility model discloses further set up to: the glue injection hole and the exhaust hole are respectively positioned on two sides of the central line of the front support disc.
Through adopting above-mentioned technical scheme, increase annotate between gluey hole and the exhaust hole distance, the inside space of the adhesive of being convenient for at the bushing pipe is fully filled.
To sum up, the utility model discloses following beneficial effect has: the adhesive is poured into the interior of the shaft bushing pipe through the adhesive injection holes, air inside the shaft bushing pipe is discharged through the exhaust holes, the adhesive is filled in an inner gap of the shaft bushing pipe, the adhesive is solidified, all parts inside the shaft bushing pipe are bonded and fixed to form a whole, and even if magnetic chips are adsorbed on the permanent magnet, the magnetic chips are also fixed in the adhesive solidification structure. Therefore, the magnetic chips can not be separated from the permanent magnet under the centrifugal action generated by the permanent magnet rotor of the water pump in the use process of the water pump, the situation that the rotor and the stator of the water pump are blocked by the magnetic chips is prevented, and the service life of the water pump is prolonged.
Drawings
Fig. 1 is a front view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 2;
fig. 4 is a first explosion diagram of the present invention;
fig. 5 is an explosion diagram of the present invention.
In the figure, 1, a rotor shaft; 2. a rear support base; 21. a thrust bearing disk; 211. cooling water filling and air exhausting grooves; 22. a rear support plate; 221. a circular boss; 2211. a hemispherical boss; 222. a circular arc boss; 3. a front support tray; 31. injecting glue holes; 32. an exhaust hole; 33. an annular glue guide groove; 4. a front bearing disk; 5. a surface-mounted permanent magnet rotor; 51. a rotor core; 511. a hemispherical recess; 512. a glue guiding groove; 52. a circular arc-shaped permanent magnet; 521. chamfering; 6. a shaft liner tube.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a water pump permanent magnet rotor, locate back supporting seat 2, table subsides formula permanent magnet rotor 5, preceding supporting disk 3, preceding bearing dish 4 on rotor shaft 1 including rotor shaft 1 and cover.
Interference hole has been seted up to back supporting seat 2, and rotor shaft 1 wears to locate interference hole and rotor shaft 1 and interference hole interference connection. The rear support base 2 is integrally formed with a thrust bearing disk 21 and a rear support disk 22, and the thrust bearing disk 21 and the rear support disk 22 are arranged at an interval. Four cooling water filling and exhausting grooves 211 are formed in the outer peripheral surface of the thrust bearing disc 21, and the cooling water filling and exhausting grooves 211 penetrate through the reasoning bearing disc 21 in the axial direction. The rear support disc 22 is integrally formed with a circular-arc-shaped boss 221 and four circular-arc-shaped bosses 222 on the side away from the thrust bearing disc 21, the arc centers of the four circular-arc-shaped bosses 222 and the ring center of the circular-arc-shaped boss 221 are located on the central line of the interference hole, the inner diameter of the circular-arc-shaped boss 221 is equal to the inner diameter of the interference hole, the four circular-arc-shaped bosses 222 are evenly distributed along the circumferential direction of the ring center of the circular-arc-shaped boss 221, and the circular-arc-shaped boss 221 is located in an area.
The front supporting disk 3 is provided with a sleeve hole, and the rotor shaft 1 is arranged in the sleeve hole in a penetrating way. The support seats are spaced from the front support disk 3 and the rear support disk 22 is located between the front support disk 3 and the thrust bearing disk 21.
The front bearing disc 4 is provided with a through hole, the rotor shaft 1 of the rotor shaft 1 is arranged in the through hole, and the front bearing disc 4 is bonded on one side of the front support disc 3 away from the rear support base 2.
The thrust bearing disc 21, the rear supporting disc 22, the front supporting disc 3 and the front bearing disc 4 are all in circular arrangement, the central lines of the thrust bearing disc 21, the rear supporting disc 22, the front supporting disc 3 and the front bearing disc 4 are overlapped with the central axis of the rotor shaft 1, the outer diameter of the thrust bearing disc 21 is larger than that of the rear supporting disc 22, the outer diameter of the rear supporting disc 22 is the same as that of the front supporting disc 3, and the outer diameter of the front supporting disc 3 is larger than that of the rear supporting disc 22.
The surface-mounted permanent magnet rotor 5 is positioned between the rear supporting disk 22 and the front supporting disk 3, and the maximum outer diameter of the surface-mounted permanent magnet rotor 5 is smaller than the outer diameters of the rear supporting disk 22 and the front supporting disk 3. The surface-mounted permanent magnet rotor 5 includes a rotor core 51 and four arc permanent magnets 52, the four arc permanent magnets 52 surround the rotor core 51 to form a circular ring, and the inner arc surfaces of the four arc permanent magnets 52 are magnetically connected with the outer peripheral surface of the rotor core 51. One end of the rotor core 51 abuts against the circular boss 221 and the four circular arc-shaped bosses 222, and one end of each of the four circular arc-shaped permanent magnets 52 abuts against the four circular arc-shaped bosses 222. In order to ensure that the four arc permanent magnets 52 are abutted against the four arc bosses 222, two hemispherical grooves 511 are formed in one end of the rotor core 51 close to the rear support disc 22, the annular boss 221 is integrally formed with a hemispherical boss 2211, and the two hemispherical bosses 2211 are inserted into the two hemispherical grooves 511 respectively.
The rotating shaft is further sleeved with a bushing pipe 6, and the outer peripheral surfaces of the rear supporting disk 22 and the front supporting disk 3 are respectively in threaded connection with the inner peripheral surface of the bushing pipe 6.
The front support disc 3 is provided with a glue injection hole 31 and an exhaust hole 32 in the uncovered area of the front bearing disc 4, and the glue injection hole 31 and the exhaust hole 32 are respectively positioned on two sides of the central line of the front support disc 3. The inner space of the shaft liner tube 6 is filled with an adhesive curing structure.
An annular glue guiding groove 33 is formed in one side, close to the surface-mounted permanent magnet rotor 5, of the front support disc 3, and the annular glue guiding groove 33 is communicated with the glue injecting hole 31 and the exhaust hole 32 respectively. Since the friction between the adhesive and the interface is greater than the internal friction of the adhesive, the adhesive guiding groove 512 is used to increase the flow space of the adhesive to enhance the fluidity of the adhesive, so that the adhesive can be more easily filled in the inner space of the bushing pipe 6.
Four glue guiding grooves 512 are formed in one end, close to the front support disc 3, of the rotor core 51, the glue guiding grooves 512 are evenly distributed around the center line of the rotor core 51, and the extension lines of the glue guiding grooves 512 are intersected with the center line of the rotor core 51 and coincide with the binding surfaces of the two adjacent arc-shaped permanent magnets 52. The adhesive injected into the interior of the shaft liner tube 6 is guided into the gap between the adjacent circular arc permanent magnets 52 along the adhesive guiding grooves 512.
The arc permanent magnets 52 comprise an outer arc surface, an inner arc surface and two straight surfaces, a chamfer 521 is arranged between the outer arc surface and the straight surface of each arc permanent magnet 52, and the chamfers 521 of two adjacent arc permanent magnets 52 are butted to form a glue guiding channel. On one hand, the chamfers 521 are arranged to increase the gap space between two adjacent circular arc permanent magnets 52, so that the adhesive can be filled in the gap between two adjacent circular arc permanent magnets 52, and on the other hand, the adhesive guiding channel formed by butting the chamfers 521 of two adjacent circular arc permanent magnets 52 can guide the adhesive from the front support disc 3 to the rear support disc 22.
The implementation principle of the water pump permanent magnet rotor is as follows: irritate through annotating gluey hole 31 and establish the adhesive in to the inside of bushing pipe 6, the inside air of bushing pipe 6 is discharged through exhaust hole 32, and after the inside space of bushing pipe 6 was filled up to the adhesive, the adhesive was through the solidification back, lies in inside each part bonding of bushing pipe 6 and fixes and form a whole, even adsorb on the permanent magnet has the magnetic debris, the magnetic debris also is fixed in the adhesive solidification structure. Install it on the water pump, consequently, also can not break away from the permanent magnet under the produced centrifugal action of water pump permanent magnet rotor at the use of water pump magnetic debris, the condition of prevention magnetic debris card dead water pump rotor and stator takes place, prolongs the life of water pump.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The water pump permanent magnet rotor is characterized by comprising a rotor shaft (1), a rear supporting seat (2) fixedly arranged on the rotor shaft (1) and a front supporting disc (3) sleeved on the rotor shaft (1), wherein the supporting seat and the front supporting disc (3) are arranged at intervals, the rear supporting seat (2) is provided with a thrust bearing disc (21) and a rear supporting disc (22), the rear supporting disc (22) is positioned between the front supporting disc (3) and the thrust bearing disc (21), one side, far away from the rear supporting seat (2), of the front supporting disc (3) is provided with the front bearing disc (4), the thrust bearing disc (21), the rear supporting disc (22), the front supporting disc (3) and the front bearing disc (4) are all in circular arrangement, the central lines of the thrust bearing disc (21), the rear supporting disc (22), the front supporting disc (3) and the front bearing disc (4) and the central line of the rotor shaft (1) coincide, the outer diameter of the thrust bearing disc (21) is larger than that of a rear supporting disc (22), the outer diameter of the rear supporting disc (22) is the same as that of a front supporting disc (3), and the outer diameter of the front supporting disc (3) is larger than that of the rear supporting disc (22);
the rotor shaft (1) is sleeved with a surface-mounted permanent magnet rotor (5), the surface-mounted permanent magnet rotor (5) is positioned between a rear supporting disc (22) and a front supporting disc (3), the surface-mounted permanent magnet rotor (5) and the front supporting disc (3) are arranged at intervals, and the maximum outer diameter of the surface-mounted permanent magnet rotor (5) is smaller than the outer diameters of the rear supporting disc (22) and the front supporting disc (3);
the rotor shaft (1) is further sleeved with a shaft bushing pipe (6), and the outer peripheral surfaces of the rear supporting disk (22) and the front supporting disk (3) are in threaded connection with the inner peripheral surface of the shaft bushing pipe (6) respectively;
the front support disc (3) is provided with a glue injection hole (31) and an exhaust hole (32) in the non-covering area of the front bearing disc (4), and an adhesive curing structure is filled in the inner space of the shaft liner tube (6).
2. The permanent magnet rotor of the water pump as claimed in claim 1, wherein an annular glue guiding groove (33) is formed in one side, close to the surface-mounted permanent magnet rotor (5), of the front support disc (3), and the annular glue guiding groove (33) is communicated with the glue injection hole (31) and the air exhaust hole (32) respectively.
3. The permanent magnet rotor of the water pump according to claim 1, wherein the surface-mounted permanent magnet rotor (5) comprises a rotor core (51) and a plurality of arc-shaped permanent magnets (52), the plurality of arc-shaped permanent magnets (52) surround the rotor core (51) to form a circular ring shape, and the inner arc surfaces of the plurality of arc-shaped permanent magnets (52) are in magnetic connection with the outer peripheral surface of the rotor core (51); rotor core (51) are close to the one end of preceding supporting disk (3) and have been seted up a plurality of glue grooves (512) of leading, the quantity of leading glue groove (512) and arc permanent magnet (52) equals, lead the central line evenly distributed that glue groove (512) centers on rotor core (51), the extension line of leading glue groove (512) intersects with the central line of rotor core (51) respectively and coincides with the binding face of two adjacent arc permanent magnet (52).
4. The water pump permanent magnet rotor according to claim 3, wherein the arc-shaped permanent magnet (52) comprises an outer arc surface, an inner arc surface and two straight surfaces, a chamfer (521) is arranged between the outer arc surface and the straight surfaces of the arc-shaped permanent magnet (52), and the chamfers (521) of two adjacent arc-shaped permanent magnets (52) are butted to form a glue guiding channel.
5. The water pump permanent magnet rotor as recited in claim 3, wherein a circular-arc-shaped boss (221) and a plurality of circular-arc-shaped bosses (222) are fixedly arranged on one side of the rear support disc (22) close to the front support disc (3), arc centers of the circular-arc-shaped bosses (222) and a ring center of the circular-arc-shaped boss (221) are located on a central line of the rear support disc (22), the circular-arc-shaped bosses (222) are uniformly distributed along the circumferential direction of the ring center of the circular-arc-shaped boss (221), and the circular-arc-shaped boss (221) is located in an area range surrounded by the circular-arc-shaped bosses (222); the arc-shaped bosses (222) are in one-to-one correspondence with the arc-shaped permanent magnets (52), one ends of the arc-shaped permanent magnets (52) are abutted to the arc-shaped bosses (222), and one ends of the rotor cores (51) are abutted to the circular-ring-shaped bosses (221) and the arc-shaped bosses (222).
6. The water pump permanent magnet rotor as recited in claim 5, wherein a hemispherical recess (511) is formed in one end of the rotor core (51) close to the rear support disc (22), a hemispherical boss (2211) is fixedly arranged on the annular boss (221), and the hemispherical boss (2211) is inserted into the hemispherical recess (511).
7. The permanent magnet rotor of a water pump according to claim 6, wherein the number of the hemispherical recesses (511) is plural, the number of the hemispherical bosses (2211) is plural, and the hemispherical recesses (511) and the hemispherical bosses (2211) correspond to each other one by one.
8. A water pump permanent magnet rotor according to claim 1, characterized in that the glue injection hole (31) and the air discharge hole (32) are located on both sides of the center line of the front support disc (3), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024524.1U CN212323833U (en) | 2020-06-05 | 2020-06-05 | Water pump permanent magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024524.1U CN212323833U (en) | 2020-06-05 | 2020-06-05 | Water pump permanent magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212323833U true CN212323833U (en) | 2021-01-08 |
Family
ID=74025356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021024524.1U Expired - Fee Related CN212323833U (en) | 2020-06-05 | 2020-06-05 | Water pump permanent magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212323833U (en) |
-
2020
- 2020-06-05 CN CN202021024524.1U patent/CN212323833U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |