CN213341907U - Electric machine - Google Patents
Electric machine Download PDFInfo
- Publication number
- CN213341907U CN213341907U CN202021984958.6U CN202021984958U CN213341907U CN 213341907 U CN213341907 U CN 213341907U CN 202021984958 U CN202021984958 U CN 202021984958U CN 213341907 U CN213341907 U CN 213341907U
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- shaft
- motor
- motor shaft
- fan
- connecting plate
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a motor, which comprises a motor shell and a motor shaft, wherein the motor shaft does not extend out of the motor shell; the fan comprises a connecting plate, and a connecting shaft is vertically arranged on the connecting plate; the motor shaft is in butt joint with the connecting shaft, the butt joint end faces of the motor shaft and the connecting shaft are in spline surface fit, and a bolt is connected between the motor shaft and the connecting shaft. The utility model discloses a motor structure is firm reliable, convenient to install and dismantle. The motor shaft does not extend out of the motor shell, so that the axial length of the motor cannot be increased. Need not to change the motor shaft, needn't process the motor shaft, can realize two kinds of radiating modes: self-air-cooled heat dissipation and forced air-cooled heat dissipation.
Description
Technical Field
The utility model relates to the technical field of motors, relate to a motor particularly.
Background
The coaxial heat dissipation of motor that currently commonly uses has two kinds of modes: self-air-cooling heat dissipation and forced air-cooling heat dissipation are used. As shown in fig. 9, when the self-cooling heat dissipation is used, the motor shaft 14 extends out of the motor housing 10, the self-cooling fan 15 is installed at the extending end of the motor shaft 14, and the rotation speed of the self-cooling fan 15 is the same as that of the motor shaft 14. The motor has the advantages that the axial length of the motor is short, and a power supply required by an external cooling fan is not needed; the disadvantage is that the heat dissipation effect of the motor is not good, especially influenced by the rotating speed of the motor, and when the rotating speed of the motor is low, the heat dissipation effect is poor. As shown in fig. 10, when forced air cooling is used for heat dissipation, the motor shaft 14 does not need to extend out of the motor housing 10, the heat dissipation fan 16 is directly installed at the tail of the motor housing 10, and an external power supply is used for supplying power to the heat dissipation fan 16. The advantage is that the radiating effect is good, and the shortcoming needs independent power supply, and motor axial length lengthens.
Because the axial length of the motor rotating shaft 14 is different when the motors with two heat dissipation modes are designed, the motor rotating shafts 14 of the two motors cannot be used universally, and when the cooling mode of the motor is replaced, the motor rotating shaft 14 needs to be replaced, or the motor rotating shaft 14 needs to be machined. For example, when the heat dissipation by the self-blowing cold wind is replaced by the heat dissipation by the forced air-cooling fan, the motor shaft 14 shown in fig. 9 needs to be shortened, which is time-consuming, labor-consuming and high in cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a motor, the installation of being convenient for is dismantled, need not to change the motor shaft, needn't process the motor shaft, can realize two kinds of radiating modes.
Therefore, the utility model provides a motor, which comprises a motor shell and a motor shaft, wherein the motor shaft does not extend out of the motor shell; the fan comprises a connecting plate, and a connecting shaft is vertically arranged on the connecting plate; the motor shaft is in butt joint with the connecting shaft, the butt joint end faces of the motor shaft and the connecting shaft are in spline surface fit, and a bolt is connected between the motor shaft and the connecting shaft.
Preferably, the projection of the connecting plate is circular, a circular through hole is formed in the connecting plate, and the circular through hole is concentric with the connecting plate.
Preferably, the connecting shaft is in the shape of a hollow cylinder with an opening at one end, the opening end of the connecting shaft is fixed at the circular through hole, and the inner diameter of the connecting shaft is equal to the diameter of the circular through hole.
Preferably, the closed end surface of the connecting shaft is butted with the end surface of the motor shaft, the closed end surface of the connecting shaft is a spline surface, and the end surface of the motor shaft is a spline surface.
Preferably, the bolt is connected to a closed end surface of the connecting shaft and an end surface of the motor shaft.
Preferably, a fan blade shaft is vertically fixed on the connecting plate, and the fan blade shaft and the connecting shaft are respectively connected to two corresponding side surfaces of the connecting plate.
Preferably, the fan blade shaft is in a hollow cylinder shape with openings at two ends, and a plurality of fan blades are fixed on the side surface of the fan blade shaft at equal intervals; one end of the fan blade shaft is fixed at the circular through hole, and the inner diameter of the fan blade shaft is equal to the diameter of the circular through hole.
Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model provides a motor, which comprises a motor shell and a motor shaft, wherein the motor shaft does not extend out of the motor shell; the fan comprises a connecting plate, and a connecting shaft is vertically arranged on the connecting plate; the motor shaft is in butt joint with the connecting shaft, the butt joint end faces of the motor shaft and the connecting shaft are in spline surface fit, and a bolt is connected between the motor shaft and the connecting shaft. The utility model discloses a motor structure is firm reliable, convenient to install and dismantle. The motor shaft does not extend out of the motor shell, so that the axial length of the motor cannot be increased. Need not to change the motor shaft, needn't process the motor shaft, can realize two kinds of radiating modes: self-air-cooled heat dissipation and forced air-cooled heat dissipation. When needs use from the forced air cooling heat dissipation, directly will the utility model discloses a fan connect on the motor shaft can, the connecting axle of fan and the motor shaft of motor dock mutually and the terminal surface that docks mutually is the spline surface cooperation, and is connected with the bolt between motor shaft and the connecting axle to can make the fan stabilize effectual connection on the motor shaft, and the connection and the dismantlement of the fan of can being convenient for. When needs use forced air cooling heat dissipation, can with the utility model discloses a fan is dismantled, then will force air cooling fan lug connection on the motor shaft can, need not to change the motor shaft, also need not to process the motor shaft, convenient and fast, labour saving and time saving.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a fan of an electric motor according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a fan of the motor of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of a fan of the motor of the present invention;
fig. 4 is a partial schematic structural view of an embodiment of the motor of the present invention;
fig. 5 is a partial schematic structural view of an embodiment of the motor of the present invention;
fig. 6 is a schematic structural view of an embodiment of the motor of the present invention;
fig. 7 is a partial schematic structural view of an embodiment of the motor of the present invention;
FIG. 8 is a cross-sectional view of FIG. 7;
FIG. 9 is a schematic structural diagram of a motor (using self-blowing cold air to dissipate heat) in the prior art;
fig. 10 is a schematic structural diagram of a motor (adopting forced air cooling heat dissipation) in the prior art.
Detailed Description
The following detailed description of the embodiments of the present invention is provided to illustrate and explain the present invention, and it should be understood that the embodiments described herein are only for the purpose of illustration and explanation, and are not intended to limit the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 8, the motor of the present embodiment includes a motor housing 10, and further includes a motor shaft 11, where the motor shaft 11 does not extend out of the motor housing 10; the fan comprises a connecting plate 21, and a connecting shaft 22 is vertically arranged on the connecting plate 21; the motor shaft 11 and the connecting shaft 22 are butted, the butted end surfaces of the motor shaft 11 and the connecting shaft 22 are in spline surface fit, and a bolt 12 is connected between the motor shaft 11 and the connecting shaft 22.
The motor structure of this embodiment is firm reliable, convenient to install and dismantle. The motor shaft 11 does not extend out of the motor housing 10 and does not add to the overall axial length of the motor. Need not to change motor shaft 11, needn't process motor shaft 11, can realize two kinds of radiating modes: self-air-cooled heat dissipation and forced air-cooled heat dissipation.
When using from the forced air cooling heat dissipation, directly with the fan of this embodiment connect on motor shaft 11 can, the rotation through motor shaft 11 drives the fan and rotates to realize the heat dissipation. The connecting shaft 22 of fan and the motor shaft 11 butt joint of motor and the butt joint's terminal surface be the spline face cooperation, and be connected with bolt 12 between motor shaft 11 and the connecting shaft 22 to can make the firm effectual connection of fan on motor shaft 11, and can be convenient for the connection and the dismantlement of fan. When the forced air cooling heat dissipation is needed, the fan of the embodiment can be detached, and then the forced air cooling fan (not shown in the figure) is connected to the motor, so that the motor shaft 11 does not need to be replaced, the motor shaft 11 does not need to be processed, the convenience and the rapidness are realized, the time and the labor are saved, and the cost can be saved.
In this embodiment, the manner in which the forced air cooling fan is connected to the motor is a connection manner that is general in the technical field, and is not specifically limited herein.
In this embodiment, the fan can be through processing technology integrated into one piece, can make the fan structure firm reliable, long service life.
The projection of the connecting plate 21 is circular, and a circular through hole (not shown in the figure) is arranged on the connecting plate 21 and is concentric with the connecting plate 21.
The connecting shaft 22 is in the shape of a hollow cylinder with one open end, the open end of the connecting shaft 22 is fixed at the circular through hole, and the inner diameter of the connecting shaft 22 is equal to the diameter of the circular through hole.
The closed end surface of the connecting shaft 22 is butted with the end surface of the motor shaft 11, the closed end surface 23 of the connecting shaft 22 is a spline surface, and the end surface 13 of the motor shaft 11 is a spline surface. The end face that motor shaft 11 and connecting axle 22 dock mutually is the spline face cooperation, can prevent that connecting axle 22 from radially rocking the displacement to can make the firm effectual connection of fan on motor shaft 11.
The bolts 12 are connected to the closed end surface 23 of the connecting shaft 22 and the end surface 13 of the motor shaft 11, so that the fan of the present embodiment can be easily attached to and detached from the motor shaft 11.
The connecting plate 21 is vertically fixed with a fan blade shaft 24, and the fan blade shaft 24 and the connecting shaft 22 are respectively vertically connected to two corresponding side surfaces of the connecting plate 21.
The fan blade shaft 24 is in a hollow cylinder shape with openings at two ends, and a plurality of fan blades 25 are fixed on the side surface of the fan blade shaft 24 at equal intervals; one end of the fan blade shaft 24 is fixed at the circular through hole, and the inner diameter of the fan blade shaft 24 is equal to the diameter of the circular through hole.
In this embodiment, the connecting shaft 21 is in the shape of a hollow cylinder with an opening at one end, the fan blade shaft 24 is in the shape of a hollow cylinder with openings at both ends, and the connecting shaft 21 and the fan blade shaft 24 are connected to the circular through hole of the connecting plate 21, so that the bolt 12 can be conveniently connected and detached, and the fan of this embodiment can be conveniently connected and detached.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the following embodiments, it will be apparent to those skilled in the art that the present invention may be modified or equivalents may be substituted for some of the features of the embodiments described below; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (7)
1. The motor comprises a motor shell and is characterized by also comprising
A motor shaft that does not extend out of the motor housing;
the fan comprises a connecting plate, and a connecting shaft is vertically arranged on the connecting plate;
the motor shaft is in butt joint with the connecting shaft, the butt joint end faces of the motor shaft and the connecting shaft are in spline surface fit, and a bolt is connected between the motor shaft and the connecting shaft.
2. The electrical machine of claim 1,
the projection of the connecting plate is circular, a circular through hole is formed in the connecting plate, and the circular through hole is concentric with the connecting plate.
3. The electrical machine of claim 2,
the connecting shaft is in a hollow cylinder shape with one open end, the open end of the connecting shaft is fixed at the round through hole, and the inner diameter of the connecting shaft is equal to the diameter of the round through hole.
4. The electrical machine of claim 3,
the closed end face of the connecting shaft is in butt joint with the end face of the motor shaft, the closed end face of the connecting shaft is a spline face, and the end face of the motor shaft is a spline face.
5. The electrical machine of claim 1,
and the bolt is connected to the closed end surface of the connecting shaft and the end surface of the motor shaft.
6. The electrical machine of claim 2,
the fan blade shaft is vertically fixed on the connecting plate, and the fan blade shaft and the connecting shaft are respectively connected to two corresponding side surfaces of the connecting plate.
7. The electrical machine of claim 6,
the fan blade shaft is in a hollow cylinder shape with openings at two ends, and a plurality of fan blades are fixed on the side surface of the fan blade shaft at equal intervals;
one end of the fan blade shaft is fixed at the circular through hole, and the inner diameter of the fan blade shaft is equal to the diameter of the circular through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021984958.6U CN213341907U (en) | 2020-09-11 | 2020-09-11 | Electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021984958.6U CN213341907U (en) | 2020-09-11 | 2020-09-11 | Electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213341907U true CN213341907U (en) | 2021-06-01 |
Family
ID=76062308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021984958.6U Active CN213341907U (en) | 2020-09-11 | 2020-09-11 | Electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213341907U (en) |
-
2020
- 2020-09-11 CN CN202021984958.6U patent/CN213341907U/en active Active
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