CN211901342U - Claw type flexible connection structure for connecting outer rotor motor and driven shaft - Google Patents
Claw type flexible connection structure for connecting outer rotor motor and driven shaft Download PDFInfo
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- CN211901342U CN211901342U CN202020286609.0U CN202020286609U CN211901342U CN 211901342 U CN211901342 U CN 211901342U CN 202020286609 U CN202020286609 U CN 202020286609U CN 211901342 U CN211901342 U CN 211901342U
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- connecting bridge
- driven shaft
- universal connecting
- outer rotor
- rotor motor
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Abstract
The utility model relates to a connect jack catch 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 cylindrical clamping jaws 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 waterwheel connects outer rotor electric machine and flexible connection structure of jaw formula of 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 connection external rotor electric machine and driven shaft's jack catch formula flexible connection structure.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
a claw 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 cylindrical clamping jaw with a shaft hole in the center, a plurality of clamping grooves distributed according to an annular array are formed in one end of the cylindrical clamping jaw, a plurality of protruding ribs distributed according to the annular array are formed in one end of the motor shaft of the outer rotor motor, the circumferential width of each protruding rib is smaller than that of each clamping groove, the cylindrical clamping jaw is matched with the protruding ribs on the end face of the outer rotor motor, and the shaft hole in the center of the cylindrical clamping jaw is sleeved at the tail end of a driven shaft or is connected with the shaft hole in the center of the second universal connecting bridge in series through a connecting round rod.
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 cylindrical clamping jaws 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 view of a cylindrical jaw in the first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second embodiment of the present invention;
fig. 7 is a schematic view of a connection structure between the cylindrical claw and the second universal connection bridge according to the second embodiment of the present invention.
The reference numbers in the figures illustrate: the flexible connection piece 100, the outer rotor motor 110, the snap ring 111, the convex rib 112, the screw hole 113, the driven shaft 120, the motor platform 151, the shaft support base 160, the bearing base 170, the outer 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 cylindrical claw 300, the clamping groove 301 and the connection round rod 1100.
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 claw 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 connection piece comprises a cylindrical clamping jaw 300 with a shaft hole in the center, one end of the cylindrical clamping jaw 300 is provided with four clamping grooves 301 which are arranged according to an annular array, one end of the outer rotor motor 110 without a motor shaft is provided with four protruding ribs 112 which are arranged according to the annular array, the circumferential width of each protruding rib 112 is smaller than that of each clamping groove 301, the clamping grooves 301 of the cylindrical clamping jaws 300 are matched with the protruding ribs 112 on the end face of the outer rotor motor 110, and the shaft hole in the center of each cylindrical clamping jaw 300 is sleeved at the tail end of the driven.
The second embodiment shown in fig. 1, 2, 3, 5, 6 and 7: a claw 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 and a second universal connecting bridge 1902 which are matched with each other, and a cylindrical claw 300 with a shaft hole in the center, 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 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 that 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 generating displacement between the first universal connecting bridge 1901 and the fan-shaped blocks 192 of the second universal connecting bridge 1902 which are matched with each other exists, wherein first universal connection bridge 1901 overlaps the end at driven shaft 120, the one end of cylindrical jack catch 300 has four draw-in grooves 301 of arranging according to annular array, the one end that outer rotor motor 110 does not have the motor shaft is equipped with four protruding muscle 112 of arranging according to annular array, and the circumference width of protruding muscle 112 is less than the circumference width of draw-in groove 301, the draw-in groove 301 of cylindrical jack catch 300 cooperatees with the protruding muscle 112 of outer rotor motor 110 terminal surface, the shaft hole at cylindrical jack catch 300 center is established ties through connecting round bar 1100 and the shaft hole 191 at second universal connection bridge 190 center.
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 flexible connection structure of claw formula 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 cylindrical clamping jaw with a shaft hole in the center, a plurality of clamping grooves distributed according to an annular array are formed in one end of the cylindrical clamping jaw, a plurality of protruding ribs distributed according to the annular array are formed in one end of the motor shaft of the outer rotor motor, the circumferential width of each protruding rib is smaller than that of each clamping groove, the cylindrical clamping jaw is matched with the protruding ribs on the end face of the outer rotor motor, and the shaft hole in the center of the cylindrical clamping jaw is sleeved at the tail end of a driven shaft or is connected with the shaft hole in the center of the second universal connecting bridge in series through a connecting round rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286609.0U CN211901342U (en) | 2020-03-10 | 2020-03-10 | Claw type flexible connection structure for connecting outer rotor motor and driven shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020286609.0U CN211901342U (en) | 2020-03-10 | 2020-03-10 | Claw type flexible connection structure for connecting outer rotor motor and driven shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901342U true CN211901342U (en) | 2020-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020286609.0U Active CN211901342U (en) | 2020-03-10 | 2020-03-10 | Claw type flexible connection structure for connecting outer rotor motor and driven shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211901342U (en) |
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2020
- 2020-03-10 CN CN202020286609.0U patent/CN211901342U/en active Active
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