CN211579772U - Polygon prism type flexible connection structure for connecting outer rotor motor and driven shaft - Google Patents
Polygon prism type flexible connection structure for connecting outer rotor motor and driven shaft Download PDFInfo
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- CN211579772U CN211579772U CN202020286613.7U CN202020286613U CN211579772U CN 211579772 U CN211579772 U CN 211579772U CN 202020286613 U CN202020286613 U CN 202020286613U CN 211579772 U CN211579772 U CN 211579772U
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- driven shaft
- connecting bridge
- universal connecting
- shaft
- polygon prism
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Abstract
The utility model relates to a connect polygon prism 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, two ends of the polygon prism are respectively inserted into the annular clamping block and the inner hole of the shaft sleeve, and the two universal connecting bridges are matched, so that the situation that the outer rotor motor transmits shaking to the driven shaft when in work is avoided, noise can be reduced, 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 waterwheel connects polygon prism formula flexible connection structure of external rotor electric machine and driven shaft.
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 a connect the polygon prism formula flexible connection structure of 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:
a polygon prism 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 a polygon prism, a shaft sleeve and an annular clamping block, wherein one end of the shaft sleeve is provided with a polygon prism-shaped inner hole, the other end of the shaft sleeve is provided with a shaft hole, the shape of the cross section of the polygon prism is the same as that of the cross section of the inner hole, but the area of the cross section of the polygon prism is smaller than that of the cross section of the inner hole, a regular polygon hole with the same shape and size as that of the polygon prism is arranged in the center of the outer rotor motor shaftless end, one end of the polygon prism is inserted into the regular polygon hole of the annular clamping block, the other end of the polygon prism is inserted into the inner hole of the shaft sleeve, and the shaft hole of the shaft sleeve is fixedly sleeved at the tail end of a driven shaft or is connected with the shaft hole.
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, two ends of the polygon prism are respectively inserted into the annular clamping block and the inner hole of the shaft sleeve, and the two universal connecting bridges are matched, so that the situation that the outer rotor motor transmits shaking to the driven shaft when in work is avoided, noise can be reduced, 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 an exploded view of a middle ring-shaped fixture block, a hexagonal prism and a shaft sleeve in the first embodiment of the present invention;
fig. 6 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, the snap ring 111, the protruding rib 112, the screw hole 113, the driven shaft 120, the motor platform 151, the bearing seat 170, the first universal connecting bridge 1901, the second universal connecting bridge 1902, the shaft hole 191, the sector block 192, the sector groove 193, the gap 194, the hexagonal prism 910, the shaft sleeve 920, the inner hole 921, the annular clamping block 930 and the regular hexagonal hole 931.
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, fig. 4, and fig. 5, in a first embodiment: a polygon prism type flexible connection structure for connecting an outer rotor motor and a driven shaft comprises the outer rotor motor 110 and a cylindrical driven shaft 120, wherein the outer rotor motor 110 and the driven shaft 120 are connected through a flexible connecting piece which allows the axial displacement and the radial displacement of a connection part.
The flexible connecting piece comprises a hexagonal prism 910, a shaft sleeve 920 and an annular fixture block 930, wherein one end of the shaft sleeve 920 is provided with a hexagonal prism-shaped inner hole 921, the other end of the shaft sleeve 920 is provided with a shaft hole, the cross section of the hexagonal prism 910 is the same as that of the inner hole 921, but the cross section of the hexagonal prism 910 is smaller than that of the inner hole 921, the center of the annular fixture block 930 is provided with a regular hexagonal hole 931 with the same shape and size as those of the cross section of the hexagonal prism 910, the annular fixture block 930 is fixedly arranged in a clamping ring 111 arranged at the center of the non-shaft end of the external rotor motor 110, one end of the hexagonal prism 910 is inserted into the regular multi-hexagonal hole 931 of the annular fixture block 930, the other end of the hexagonal prism 910 is inserted into the inner hole.
As shown in fig. 1, 2, 3, 5, and 6, the second embodiment: a polygon prism type flexible connection structure for connecting an outer rotor motor and a driven shaft comprises the outer rotor motor 110 and a cylindrical driven shaft 120, wherein the outer rotor motor 110 and the driven shaft 120 are connected through 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, a second universal connecting bridge 1902, a hexagonal prism 910, a shaft sleeve 920 and an annular clamping block 930, wherein 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 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 193 at the end of the second universal connecting bridge 1902, a gap 194 for mutual displacement is formed between the fan-shaped blocks 192 of the first universal connecting bridge 1901 and the second universal connecting bridge 1902, the first universal connecting bridge 1901 is sleeved at the tail end of the driven shaft 120, one end of the shaft sleeve 920 is provided with a hexagonal prism-shaped inner hole 921, the other end of the shaft sleeve 920 is provided with a circular shaft hole, the cross section of the hexagonal prism 910 is the same as that of the inner hole 921, but the cross section of the hexagonal prism 910 is smaller than that of the inner hole 921, a regular hexagonal hole 931 with the same shape and size as that of the cross section of the hexagonal prism 910 is arranged at the center of the annular clamping block 930, the annular clamping block 930 is fixedly installed in a clamping ring arranged at the center of the non-shaft end of the external rotor motor 110, one end of the hexagonal prism 910 is inserted into the regular hexagonal hole 931 of the annular clamping block 930, the other end of the hexagonal prism 910 is inserted into the inner hole of the shaft sleeve, and the shaft hole of the shaft sleeve 920.
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 polygon prism formula flexible connection structure of external rotor electric machine and driven shaft 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 a polygon prism, a shaft sleeve and an annular clamping block, wherein one end of the shaft sleeve is provided with a polygon prism-shaped inner hole, the other end of the shaft sleeve is provided with a shaft hole, the shape of the cross section of the polygon prism is the same as that of the cross section of the inner hole, but the area of the cross section of the polygon prism is smaller than that of the cross section of the inner hole, a regular polygon hole with the same shape and size as that of the polygon prism is arranged in the center of the outer rotor motor shaftless end, one end of the polygon prism is inserted into the regular polygon hole of the annular clamping block, the other end of the polygon prism is inserted into the inner hole of the shaft sleeve, and the shaft hole of the shaft sleeve is fixedly sleeved at the tail end of a driven shaft or is connected with the shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286613.7U CN211579772U (en) | 2020-03-10 | 2020-03-10 | Polygon prism type flexible connection structure for connecting outer rotor motor and driven shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286613.7U CN211579772U (en) | 2020-03-10 | 2020-03-10 | Polygon prism type flexible connection structure for connecting outer rotor motor and driven shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211579772U true CN211579772U (en) | 2020-09-25 |
Family
ID=72526635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020286613.7U Active CN211579772U (en) | 2020-03-10 | 2020-03-10 | Polygon prism type flexible connection structure for connecting outer rotor motor and driven shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211579772U (en) |
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2020
- 2020-03-10 CN CN202020286613.7U patent/CN211579772U/en active Active
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