CN211901340U - Internal and external gear type flexible connection structure for connecting external rotor motor and driven shaft - Google Patents
Internal and external gear type flexible connection structure for connecting external rotor motor and driven shaft Download PDFInfo
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- CN211901340U CN211901340U CN202020287588.4U CN202020287588U CN211901340U CN 211901340 U CN211901340 U CN 211901340U CN 202020287588 U CN202020287588 U CN 202020287588U CN 211901340 U CN211901340 U CN 211901340U
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- connecting bridge
- driven shaft
- universal connecting
- rotor motor
- gear
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Abstract
The utility model relates to a connect interior external gear formula flexible connection structure of external rotor electric machine and driven shaft, including external rotor electric machine, driven shaft, take place axial displacement and radial displacement's flexible connection spare by the permission connection position between external rotor electric machine and the driven shaft and connect. The utility model has the advantages that: the outer rotor motor is connected with the driven shaft through a flexible connecting piece allowing the connecting part to generate axial displacement and radial displacement, and the inner gear and the outer gear are matched with the universal connecting bridge, so that the shaking of the outer rotor motor during working is prevented from being transmitted to the driven shaft, the abrasion of the driven shaft can be reduced, the driven shaft is prevented from being bent or broken, and the service life of the driven shaft is prolonged.
Description
Technical Field
The utility model relates to a mechanical transmission field especially relates to an oxygen-increasing machine water machine connects interior external rotor motor and driven shaft's interior outer gear formula flexible connection structure.
Background
In the existing aerator waterwheel, an outer rotor motor with a single-side output shaft is widely applied due to simple structure, large output torque, low manufacturing cost, thin axial thickness and light weight.
However, the outer rotor motor with a shaft protruding from one side is prone to shake during operation, and if one end of the outer rotor motor without the shaft is directly and rigidly connected with the driven shaft of the driven device through connecting pieces such as connecting flanges, the shaking during operation of the outer rotor motor can increase the abrasion speed of the driven shaft, and even bend or break the driven shaft. Therefore, a flexible connecting piece is needed to flexibly connect the outer rotor motor with the driven shaft.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above problem that prior art exists, provide an interior external gear formula flexible connection structure of connecting external rotor electric machine and driven shaft.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
an inner and outer gear type flexible connection structure for connecting an outer rotor motor and a driven shaft comprises the outer rotor motor and a cylindrical driven shaft, wherein the outer rotor motor and the driven shaft are connected by a flexible connecting piece which allows the connection part to generate axial displacement and radial displacement; the flexible connecting piece comprises a first universal connecting bridge and a second universal connecting bridge which are matched with each other, the centers of the first universal connecting bridge and the second universal connecting bridge are respectively provided with a circular shaft hole along the axial direction, one end of each of the first universal connecting bridge and the second universal connecting bridge is provided with at least two fan-shaped blocks which are arranged according to an annular array, a fan-shaped groove is formed between two adjacent fan-shaped blocks at the end part of each of the first universal connecting bridge and the second universal connecting bridge, the central angle corresponding to the sector-shaped groove is larger than the central angle corresponding to the sector-shaped block, the sector-shaped block at the end part of the first universal connecting bridge is inserted into the sector-shaped groove at the end part of the second universal connecting bridge, gaps for mutual displacement are formed between the fan-shaped blocks of the first universal connecting bridge and the second universal connecting bridge which are matched with each other, wherein the first universal connecting bridge is sleeved at the tail end of the driven shaft; the flexible connecting piece further comprises an outer gear and an inner gear, the center of the outer gear is provided with a shaft hole, the inner gear is located outside the outer gear and meshed with the outer gear, the radius of the addendum circle of the outer gear is smaller than that of the tooth space circle of the inner gear, one end of the motor shaft of the outer rotor motor is provided with a plurality of screw holes which are distributed according to an annular array, the inner gear is fixedly installed on the outer rotor motor in a mode that the screw holes in the inner gear and the screw holes in the outer rotor motor are connected in series through bolts, and the shaft hole in the center of the outer gear is sleeved.
The utility model has the advantages that: the outer rotor motor is connected with the driven shaft through a flexible connecting piece allowing the connecting part to generate axial displacement and radial displacement, and the inner gear and the outer gear are matched with the universal connecting bridge, so that the shaking of the outer rotor motor during working is prevented from being transmitted to the driven shaft, the abrasion of the driven shaft can be reduced, the driven shaft is prevented from being bent or broken, and the service life of the driven shaft is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural view of an external rotor motor in the present invention;
fig. 2 is a schematic view of a matching structure of the first universal connecting bridge and the second universal connecting bridge in the present invention;
FIG. 3 is a schematic structural view of a second universal connecting bridge according to the present invention;
fig. 4 is a schematic structural diagram of a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second embodiment of the present invention;
the reference numbers in the figures illustrate: the external rotor motor 110, a snap ring 111, a convex rib 112, a screw hole 113, a driven shaft 120, a motor platform 151, a bearing seat 170, a first universal connecting bridge 1901, a second universal connecting bridge 1902, a shaft hole 191, a sector block 192, a sector groove 193, a gap 194, an external gear 510 and an internal gear 520.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 and 4, in the first embodiment: an internal and external gear type flexible connection structure for connecting an external rotor motor and a driven shaft comprises an external rotor motor 110 and a cylindrical driven shaft 120, wherein the external rotor motor 110 and the driven shaft 120 are connected by a flexible connecting piece which allows the axial displacement and the radial displacement of a connection part.
The flexible connector comprises an outer gear 510 with a shaft hole in the center and an inner gear 520 which is positioned outside the outer gear 510 and meshed with the outer gear 510, the radius of the addendum circle of the outer gear 510 is smaller than that of the gullet circle of the inner gear 520, one end of the outer rotor motor 110 without a motor shaft is provided with four screw holes 113 which are arranged according to an annular array, the inner gear 520 connects the screw holes on the inner gear 520 and the screw holes on the outer rotor motor 110 in series and is fixedly installed on the outer rotor motor 110 through bolts, and the shaft hole in the center of the outer gear.
As shown in fig. 1, 2, 3 and 5, the second embodiment: an internal and external gear type flexible connection structure for connecting an external rotor motor and a driven shaft comprises an external rotor motor 110 and a cylindrical driven shaft 120, wherein the external rotor motor 110 and the driven shaft 120 are connected by a flexible connecting piece which allows the axial displacement and the radial displacement of a connection part.
The flexible connector comprises a first universal connecting bridge 1901 and a second universal connecting bridge 1902 which are matched with each other, an outer gear 510 with a shaft hole in the center, and an inner gear 520 which is positioned outside the outer gear 510 and is meshed with the outer gear 510, the centers of the first universal connecting bridge 1901 and the second universal connecting bridge 1902 are respectively provided with a circular shaft hole 191 along the axial direction, one end of each of the first universal connecting bridge 1901 and the second universal connecting bridge 1902 is provided with two fan-shaped blocks 192 which are arranged according to an annular array, a fan-shaped groove 193 is formed between two adjacent fan-shaped blocks 192 at the end of each of the first universal connecting bridge 1901 and the second universal connecting bridge 1902, the central angle corresponding to the fan-shaped groove 193 is larger than the central angle corresponding to the fan-shaped block 192, the fan-shaped block 192 at the end of the first universal connecting bridge 1901 is inserted into the fan-shaped groove at the end of the second universal connecting bridge 1902, a gap 194 for generating displacement between the fan-shaped blocks 192 of the first universal connecting bridge 1901 and the second universal connecting bridge which are matched with each other, the first universal connecting bridge 1901 is sleeved at the tail end of the driven shaft 120, the radius of the addendum circle of the outer gear 510 is smaller than the radius of the tooth space circle of the inner gear 520, one end of the outer rotor motor 110 without the motor shaft is provided with four screw holes 113 arranged according to an annular array, the inner gear 520 connects the screw holes on the inner gear 520 and the screw holes on the outer rotor motor 110 in series through bolts and is fixedly installed on the outer rotor motor 110, and the shaft hole at the center of the outer gear 510 is connected with the shaft hole 191 at the center of the second universal connecting bridge 1902 in.
The utility model discloses be the tight fit between axis and shaft hole, connection round bar and shaft hole, motor shaft and the axle support seat.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (1)
1. The utility model provides a connect external rotor electric machine and driven shaft's interior outer gear formula flexible connection structure which characterized in that: the flexible connection device comprises an outer rotor motor and a cylindrical driven shaft, wherein the outer rotor motor is connected with the driven shaft through a flexible connection piece which allows the connection part to generate axial displacement and radial displacement; the flexible connecting piece comprises a first universal connecting bridge and a second universal connecting bridge which are matched with each other, the centers of the first universal connecting bridge and the second universal connecting bridge are respectively provided with a circular shaft hole along the axial direction, one end of each of the first universal connecting bridge and the second universal connecting bridge is provided with at least two fan-shaped blocks which are arranged according to an annular array, a fan-shaped groove is formed between two adjacent fan-shaped blocks at the end part of each of the first universal connecting bridge and the second universal connecting bridge, the central angle corresponding to the sector-shaped groove is larger than the central angle corresponding to the sector-shaped block, the sector-shaped block at the end part of the first universal connecting bridge is inserted into the sector-shaped groove at the end part of the second universal connecting bridge, gaps for mutual displacement are formed between the fan-shaped blocks of the first universal connecting bridge and the second universal connecting bridge which are matched with each other, wherein the first universal connecting bridge is sleeved at the tail end of the driven shaft; the flexible connecting piece further comprises an outer gear and an inner gear, the center of the outer gear is provided with a shaft hole, the inner gear is located outside the outer gear and meshed with the outer gear, the radius of the addendum circle of the outer gear is smaller than that of the tooth space circle of the inner gear, one end of the motor shaft of the outer rotor motor is provided with a plurality of screw holes which are distributed according to an annular array, the inner gear is fixedly installed on the outer rotor motor in a mode that the screw holes in the inner gear and the screw holes in the outer rotor motor are connected in series through bolts, and the shaft hole in the center of the outer gear is sleeved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020287588.4U CN211901340U (en) | 2020-03-10 | 2020-03-10 | Internal and external gear type flexible connection structure for connecting external rotor motor and driven shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020287588.4U CN211901340U (en) | 2020-03-10 | 2020-03-10 | Internal and external gear type flexible connection structure for connecting external rotor motor and driven shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901340U true CN211901340U (en) | 2020-11-10 |
Family
ID=73322585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020287588.4U Active CN211901340U (en) | 2020-03-10 | 2020-03-10 | Internal and external gear type flexible connection structure for connecting external rotor motor and driven shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901340U (en) |
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2020
- 2020-03-10 CN CN202020287588.4U patent/CN211901340U/en active Active
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