CN212543472U - Water pump rotor with squirrel cage structure - Google Patents
Water pump rotor with squirrel cage structure Download PDFInfo
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- CN212543472U CN212543472U CN202021450245.1U CN202021450245U CN212543472U CN 212543472 U CN212543472 U CN 212543472U CN 202021450245 U CN202021450245 U CN 202021450245U CN 212543472 U CN212543472 U CN 212543472U
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Abstract
The utility model provides a water pump rotor of squirrel cage structure, include: the rotor end rings are arranged in pairs, the two rotor end rings are arranged oppositely, and a plurality of connecting counter bores are uniformly arranged on the peripheral wall of each rotor end surrounding the circle center of the rotor end; the rotor end ring is provided with a plurality of connecting counterbores, the number of the rotor guide bars corresponds to the number of the connecting counterbores on the rotor end ring one by one, the two ends of each rotor guide bar are provided with connecting ends, the connecting end of one end of each rotor guide bar is connected with the connecting counterbore of the rotor end ring on one side, and the other end of each rotor guide bar is inserted into the connecting counterbore of the rotor end ring on the other side in a penetrating manner. The utility model discloses well rotor conducting bar inserts through the link at both ends and establishes in connecting the counter bore, firmly fixes rotor conducting bar and rotor end links together and forms the water pump rotor of squirrel cage structure.
Description
Technical Field
The utility model relates to a water pump technical field especially relates to a water pump rotor of squirrel cage structure.
Background
The squirrel-cage motor is characterized in that a stator of the motor is provided with a three-phase distributed winding in a scattered embedding mode, and a rotor is a cage-type conducting bar. Because the shape of the conducting bars is similar to that of a squirrel cage, the conducting bars can also be called squirrel cage asynchronous motors. In modern industrial and agricultural production, three-phase AC squirrel-cage motors are most widely used, and about 70% -80% of mechanical transmission equipment is driven by the three-phase AC squirrel-cage motors. The motor has simple structure, reliable operation, convenient maintenance and low price, thus being widely applied. Rotor end ring and rotor conducting bar are directly welded in current rotor, and the fastness that rotor end ring and rotor conducting bar are connected is relatively poor, seriously influences the life of rotor.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
Therefore, an object of the present invention is to provide a water pump rotor with a squirrel cage structure, including:
the rotor end rings are arranged in pairs, the two rotor end rings are arranged oppositely, and a plurality of connecting counter bores are uniformly arranged on the peripheral wall of each rotor end surrounding the circle center of the rotor end;
the number of the rotor guide bars corresponds to that of the connecting counter bores on the rotor end ring one by one, connecting ends are arranged at two ends of each rotor guide bar, the connecting end at one end of each rotor guide bar is connected with the connecting counter bore of the rotor end ring at one side, and the other end of each rotor guide bar is inserted into the connecting counter bore of the rotor end ring at the other side in a penetrating manner;
the connecting counter bore comprises a first through hole and a second through hole, the first through hole and the second through hole are communicated, and the inner diameter of the first through hole is smaller than that of the second through hole;
the connecting end comprises a circular truncated cone section and a cylindrical section which are connected with each other, the diameter of the bottom surface of the circular truncated cone section is not more than the inner diameter of the first through hole, and the circular truncated cone section is arranged in the first through hole; the cylindrical section is arranged in the second through hole, a nut is connected to the cylindrical section in a threaded mode, and the outer diameter of the nut is larger than the inner diameter of the first through hole and smaller than the inner diameter of the second through hole.
Further, the rotor conducting bar and the connecting end are integrally formed.
Further, the circular platform section and the cylindrical section are integrally formed.
Further, the gap between the first through hole and the circular truncated cone section is welded through silver brazing.
Further, the gap between the second through hole and the nut is welded through silver brazing.
Further, the depth of the first through hole is twice the depth of the second through hole.
Further, the inner diameter of the second through hole is longer than that of the first through hole by not less than 4 mm.
Further, the diameter of the cylindrical section is half of the diameter of the rotor conducting bar.
Further, the gap between the second through hole and the nut is not less than 2 mm.
Compared with the closest prior art, the utility model provides a technical scheme has following beneficial effect:
the utility model discloses well rotor conducting bar inserts through the link at both ends and establishes in connecting the counter bore, firmly fixes rotor conducting bar and rotor end links together and forms the water pump rotor of squirrel cage structure. The circular truncated cone section in the connecting end is inserted into the first through hole, and can be welded by utilizing a gap between the circular truncated cone section and the first through hole, so that the welding capacity is improved, and the welding effect is further improved; meanwhile, the cylindrical section is inserted into the second through hole, is fastened on the cylindrical section by utilizing a nut, and the nut is abutted against the position between the first through hole and the second through hole, so that the rotor guide bar is prevented from sliding out of the rotor end ring in the length direction; finally, a gap is formed between the nut and the second through hole 22, so that the welding capacity is improved, and the welding effect is further improved.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a water pump rotor according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a rotor end ring and a rotor bar according to an embodiment of the present invention.
Fig. 3 is a schematic view of a rotor end ring and rotor bar connection according to an embodiment of the present invention (the nut is not visible).
In the figure: the rotor end ring comprises a rotor end ring 1, a connecting counterbore 2, a first through hole 21, a second through hole 22, a rotor guide bar 3, a connecting end 4, a circular platform section 41, a cylindrical section 42 and a nut 43.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The following describes a water pump rotor with a squirrel cage structure according to an embodiment of the present invention with reference to fig. 1 to 3, including: the rotor end rings 1 are provided with two, the two rotor end rings 1 are oppositely arranged, and a plurality of connecting counter bores 2 are uniformly arranged on the peripheral wall of each rotor end ring 1 around the circle center of the rotor end ring; the number of the rotor guide bars 3 corresponds to that of the connecting counter bores 2 on the rotor end ring 1 one by one, connecting ends 4 are arranged at two ends of each rotor guide bar 3, the connecting end 4 at one end of each rotor guide bar 3 is connected with the connecting counter bore 2 of the rotor end ring 1 at one side, and the other end of each rotor guide bar 3 is inserted into the connecting counter bore 2 of the rotor end ring 1 at the other side; the connecting counter bore 2 comprises a first through hole 21 and a second through hole 22, the first through hole 21 is communicated with the second through hole 22, and the inner diameter of the first through hole 21 is smaller than that of the second through hole 22; the connecting end 4 comprises a circular truncated cone section 41 and a cylindrical section 42 which are connected with each other, the diameter of the bottom surface of the circular truncated cone section 41 is not more than the inner diameter of the first through hole 21, and the circular truncated cone section 41 is arranged in the first through hole 21; the cylindrical section 42 is disposed in the second through hole 22, and the cylindrical section 42 is connected with a nut 43 by a thread, and an outer diameter of the nut 43 is larger than an inner diameter of the first through hole 21 and smaller than an inner diameter of the second through hole 22.
The embodiment of the utility model provides an in, rotor conducting bar 3 inserts through the link 4 at both ends and establishes in connecting counter bore 2, firmly fixes rotor conducting bar 3 and rotor end links 1 and form the water pump rotor of squirrel cage structure together. The circular truncated cone section 41 in the connecting end 4 is inserted into the first through hole 21, and the welding can be performed by utilizing the gap between the circular truncated cone section 41 and the first through hole 21, so that the welding capacity is improved, and the welding effect is further improved; meanwhile, the cylindrical section 42 is inserted into the second through hole 22, and is fastened to the cylindrical section 42 by the nut 43, and the nut 43 abuts against a position between the first through hole 21 and the second through hole 22, so that the rotor conducting bar 3 is prevented from sliding out of the rotor end ring 1 in the length direction; finally, a gap is formed between the nut 43 and the second through hole 22, so that the welding capacity is improved, and the welding effect is further improved.
According to the utility model discloses a further embodiment, rotor conducting bar 3 with 4 integrated into one piece of link, circular platform section 41 with cylinder section 42 integrated into one piece, integrated into one piece is favorable to keeping structural strength. The gap between the first through hole 21 and the circular platform section 41 is welded through silver brazing, the gap between the second through hole 22 and the screw cap 43 is welded through silver brazing, the silver brazing welding effect is good, and welding between the gap between the first through hole 21 and the circular platform section 41 and the gap between the second through hole 22 and the screw cap 43 can improve welding allowance and increase welding flux. The depth of the first through hole 21 is twice the depth of the second through hole 22, the inner diameter of the second through hole 22 is longer than that of the first through hole 21 by not less than 4mm, and the diameter of the cylindrical section 42 is half of that of the rotor conducting bar 3. The gap between the second through hole 22 and the screw cap 43 is not less than 2 mm.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
Claims (9)
1. A water pump rotor of squirrel cage structure, comprising:
the rotor end rings are arranged in pairs, the two rotor end rings are arranged oppositely, and a plurality of connecting counter bores are uniformly arranged on the peripheral wall of each rotor end surrounding the circle center of the rotor end;
the number of the rotor guide bars corresponds to that of the connecting counter bores on the rotor end ring one by one, connecting ends are arranged at two ends of each rotor guide bar, the connecting end at one end of each rotor guide bar is connected with the connecting counter bore of the rotor end ring at one side, and the other end of each rotor guide bar is inserted into the connecting counter bore of the rotor end ring at the other side in a penetrating manner;
the connecting counter bore comprises a first through hole and a second through hole, the first through hole and the second through hole are communicated, and the inner diameter of the first through hole is smaller than that of the second through hole;
the connecting end comprises a circular truncated cone section and a cylindrical section which are connected with each other, the diameter of the bottom surface of the circular truncated cone section is not more than the inner diameter of the first through hole, and the circular truncated cone section is arranged in the first through hole; the cylindrical section is arranged in the second through hole, a nut is connected to the cylindrical section in a threaded mode, and the outer diameter of the nut is larger than the inner diameter of the first through hole and smaller than the inner diameter of the second through hole.
2. The squirrel-cage water pump rotor as claimed in claim 1, wherein the rotor bars are integrally formed with the connecting end.
3. The squirrel-cage water pump rotor as claimed in claim 1, wherein the circular truncated cone section and the cylindrical section are integrally formed.
4. The squirrel-cage water pump rotor as claimed in claim 1, wherein the gap between the first through hole and the truncated cone section is welded by silver brazing.
5. The water pump rotor of squirrel cage structure as claimed in claim 1, wherein the gap between the second through hole and the nut is welded by silver brazing.
6. The squirrel-cage water pump rotor as claimed in claim 1, wherein the depth of the first through holes is twice the depth of the second through holes.
7. The water pump rotor with a squirrel cage structure as claimed in claim 1, wherein the inner diameter of the second through hole is not less than 4mm longer than the inner diameter of the first through hole.
8. The squirrel-cage water pump rotor as claimed in claim 1, wherein the diameter of the cylindrical section is half of the diameter of the rotor bars.
9. The water pump rotor with a squirrel cage structure as claimed in claim 1, wherein the gap between the second through hole and the nut is not less than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021450245.1U CN212543472U (en) | 2020-07-21 | 2020-07-21 | Water pump rotor with squirrel cage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021450245.1U CN212543472U (en) | 2020-07-21 | 2020-07-21 | Water pump rotor with squirrel cage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212543472U true CN212543472U (en) | 2021-02-12 |
Family
ID=74518369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021450245.1U Active CN212543472U (en) | 2020-07-21 | 2020-07-21 | Water pump rotor with squirrel cage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212543472U (en) |
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2020
- 2020-07-21 CN CN202021450245.1U patent/CN212543472U/en active Active
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