CN216617975U - Fan driving key shaft and fan movement using same - Google Patents
Fan driving key shaft and fan movement using same Download PDFInfo
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- CN216617975U CN216617975U CN202220016762.0U CN202220016762U CN216617975U CN 216617975 U CN216617975 U CN 216617975U CN 202220016762 U CN202220016762 U CN 202220016762U CN 216617975 U CN216617975 U CN 216617975U
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- fan
- output shaft
- main shaft
- conical step
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Abstract
The utility model discloses a fan driving key shaft and a fan movement using the same, wherein the fan driving key shaft comprises a main shaft, the head end of the main shaft is provided with a conical step, and the head end of the conical step is provided with an output shaft; the tail end of the main shaft is provided with a connecting part; the output shaft is provided with a plurality of rectangular or trapezoidal grooves which are uniformly arranged on the outer wall of the output shaft, the grooves are arranged along the length direction of the output shaft, and the end part of the output shaft is provided with a mounting hole; the diameter of the head end section of the conical step is
The diameter of the tail end section of the conical step is
The total length of the tapered landing is 28 mm. The beneficial effects are that: the assembly efficiency is effectively improved, and the rotating speed of the main shaft is improved through the trapezoidal grooves, so that the wind power of the fan blade is enhanced.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a fan driving key shaft and a fan movement using the same.
Background
When the indoor temperature is not too high in most areas, people generally adopt an electric fan as a cooling and heatstroke prevention device;
the electric fan is connected with a main shaft of a machine core of the electric fan through fan blades, and the fan blades are driven to rotate through the main shaft of the machine core, so that the purposes of cooling and preventing heatstroke are achieved; most core main shafts are connected with fan blades at present, and the flat key type or the pin bolt type are adopted, so that the fan blades of the electric fan are inconvenient to assemble with the main shafts when being large, the production efficiency of the electric fan is low, and the flat key type main shafts have poor rotating speed effect in actual work and cannot achieve the effect of quickly reducing the temperature.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks, the present invention provides a fan driving key shaft which improves the assembly efficiency and increases the rotation speed of the main shaft through the trapezoidal groove, thereby enhancing the wind power of the fan blades.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a fan driving key shaft comprises a main shaft, wherein a conical step is arranged at the head end of the main shaft, and an output shaft is arranged at the head end of the conical step; the tail end of the main shaft is provided with a connecting part; the output shaft is provided with a plurality of rectangular or trapezoidal grooves, the grooves are uniformly arranged on the outer wall of the output shaft, the grooves are arranged along the length direction of the output shaft, and the end part of the output shaft is provided with a mounting hole; the diameter of the section of the head end of the conical step is
The diameter of the tail end section of the conical step is
The total length of the tapered landing is 28 mm.
Preferably, in the above fan driving key shaft, a position where the output shaft is connected to the tapered landing is provided with a limit groove, and a seal ring is arranged in the limit groove.
Preferably, in the above-mentioned fan driving key shaft, the connecting portion is provided with a positioning seat, and the bottom of the positioning seat is provided with a plurality of protruding blocks.
Preferably, the positioning seat is shaped like a disk, and the fan driving key shaft is fixed to the housing.
Preferably, in the above fan driving key shaft, the plurality of protruding blocks are uniformly distributed at the bottom of the positioning seat in an annular shape, and each protruding block is in a spherical shape.
Preferably, in the above-mentioned fan driving key shaft, the main shaft is integrally formed with the tapered step and the connecting portion, and the tapered step is integrally formed with the output shaft.
Preferably, the fan drive key shaft has an overall length of 125 mm.
A fan movement, wherein the fan movement adopts the fan driving key shaft.
The utility model has the beneficial effects that:
(1) in the production and assembly process, because the middle part of the fan blade is provided with the mounting concave groove, the diameter of the section of the head end of the conical step platform passing through the main shaft is set as
The diameter of the end section of the conical step is set as
Therefore, the conical step is narrowed and widened, the fan blade is more conveniently assembled with the output shaft of the main shaft due to the design, and the fan blade can output wind power more stably.
(2) Because the output shaft of main shaft is provided with and is rectangle or trapezoidal recess, when meetting great fan leaf, also can easily accomplish the purpose of quick installation and quick dismantlement maintenance to through being rectangle or trapezoidal recess, such design makes the output shaft of main shaft form the integral key shaft, and the rotational speed after the output shaft of fan leaf and main shaft can effectively be improved to such design, thereby the wind-force of reinforcing fan leaf.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural view of an output shaft;
fig. 3 is a schematic structural diagram of the positioning seat.
Wherein: the device comprises a main shaft 11, a conical step 12, an output shaft 13, a connecting part 14, a groove 15, a mounting hole 16, a limiting groove 17, a positioning seat 18 and a protruding block 19.
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 or similar 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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or components must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 3, a fan driving key shaft comprises a main shaft 11, wherein a tapered step 12 is arranged at the head end of the main shaft 11, and an output shaft 13 is arranged at the head end of the tapered step 12; the tail end of the main shaft 11 is provided with a connecting part 14; the output shaft 13 is provided with a plurality of rectangular or trapezoidal grooves 15, the plurality of grooves 15 are uniformly arranged on the outer wall of the output shaft 13, the grooves 15 are arranged along the length direction of the output shaft 13, and the end part of the output shaft 13 is provided with a mounting hole 16; the diameter of the head end section of the tapered landing 12 is
The end section diameter of the tapered landing 12 is
The overall length of the tapered landing 12 is 28 mm; in the production and assembly process, the diameter of the section of the head end of the conical step platform 12 passing through the main shaft 11 is set as
The diameter of the end section of the tapered landing 12 is set to
The design makes the fan blade and the output shaft 13 of the main shaft 11 more convenient to assemble, and the fan blade can output wind power more stably; such a design is due to the output shaft 13 of the main shaft 11 being provided with a groove 15 having a rectangular or trapezoidal shapeMake, when meetting great fan leaf, also can easily accomplish the purpose of quick installation and quick dismantlement maintenance to through being rectangle or trapezoidal recess 15, such design makes the output shaft 13 of main shaft 11 form the integral key shaft, and the rotational speed after such design can effectively improve fan leaf and the output shaft 13 of main shaft 11 is connected, thereby strengthens fan leaf's wind-force. It should be noted that the total length of the entire spindle 11 may be embodied as 115 mm.
In the fan driving key shaft in the embodiment, a limiting groove 17 is formed in the position where the output shaft 13 is connected with the conical step 12, and a sealing ring is arranged in the limiting groove 17; because the output shaft 13 is in contact with the conical step 12 to be provided with the limiting groove 17, the design is convenient for disassembling and maintaining the subsequent fan blades and the whole main shaft 11, and because the limiting groove 17 is provided with the sealing ring, after the fan blades are connected with the main shaft 11, the main shaft 11 can be limited, and the phenomenon that the fan motor cannot normally drive due to water stain flowing into the main shaft 11 is prevented; it should be specifically noted that the sealing ring is a rubber sealing ring, and such a design enables the inner wall of the mounting concave groove formed in the middle of the fan blade to contact with the sealing ring in the process of inserting the fan blade into the tapered step 12, thereby playing a certain anti-slip role.
It is worth to say that, the connecting portion 14 is provided with a positioning seat 18, and the bottom of the positioning seat 18 is provided with a plurality of convex blocks 19; wherein the positioning seat 18 is shaped like a disk; wherein the plurality of convex blocks 19 are uniformly distributed at the bottom of the positioning seat 18 in an annular shape, and each convex block 19 is in a spherical shape; the bottom of the positioning seat 18 is provided with a spherical protruding block 19, and because other processes in the machining center are required to be performed on the subsequent spindle 11 in the actual production process, it should be noted that the clamping platform of the machining center is provided with a circular groove corresponding to the clamping platform, so that the spindle 11 can be placed on the clamping platform of the machining center more stably.
The fan driving key shaft in the present embodiment, in which the main shaft 11 is integrally formed with the tapered step 12 and the connecting portion 14, and the tapered step 12 is integrally formed with the output shaft 13; such a design improves the service life of the entire spindle 11.
The utility model also provides a fan movement which adopts the fan driving key shaft, so that the phenomenon that workers leave most of time on the assembly work of the main shaft 11 and the fan blades is greatly reduced, the working efficiency is improved, and through the rectangular or trapezoidal groove 15, the output shaft 13 of the main shaft 11 forms a spline shaft, the rotating speed of the fan blades connected with the output shaft 13 of the main shaft 11 is effectively improved, and the wind power of the fan blades is enhanced.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Other embodiments of the present invention will occur to those skilled in the art without the exercise of inventive faculty, and are intended to fall within the scope of the utility model.
Claims (8)
1. A fan drive key shaft comprising a main shaft, characterized in that: the head end of the main shaft is provided with a conical step, and the head end of the conical step is provided with an output shaft;
the tail end of the main shaft is provided with a connecting part;
the output shaft is provided with a plurality of rectangular or trapezoidal grooves, the grooves are uniformly arranged on the outer wall of the output shaft, the grooves are arranged along the length direction of the output shaft, and the end part of the output shaft is provided with a mounting hole;
the diameter of the section of the head end of the conical step is
The diameter of the tail end section of the conical step is
The total length of the tapered landing is 28 mm.
2. The fan drive key shaft of claim 1, wherein: the output shaft is provided with a limiting groove at the position connected with the conical step, and a sealing ring is arranged in the limiting groove.
3. The fan drive key shaft of claim 1, wherein: the connecting part is provided with a positioning seat, and the bottom of the positioning seat is provided with a plurality of protruding blocks.
4. The fan drive key shaft of claim 3, wherein: the positioning seat is disc-shaped.
5. The fan drive key shaft of claim 3, wherein: the plurality of the convex blocks are uniformly distributed at the bottom of the positioning seat in an annular shape, and each convex block is in a spherical shape.
6. The fan drive key shaft of claim 1, wherein: the main shaft with the toper halfpace with connecting portion integrated into one piece, the toper halfpace with output shaft integrated into one piece.
7. The fan drive key shaft of claim 1, wherein: the total length of the whole main shaft is 5 mm.
8. A fan movement, its characterized in that: the fan movement adopts the fan driving key shaft as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220016762.0U CN216617975U (en) | 2022-01-06 | 2022-01-06 | Fan driving key shaft and fan movement using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220016762.0U CN216617975U (en) | 2022-01-06 | 2022-01-06 | Fan driving key shaft and fan movement using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216617975U true CN216617975U (en) | 2022-05-27 |
Family
ID=81686993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220016762.0U Active CN216617975U (en) | 2022-01-06 | 2022-01-06 | Fan driving key shaft and fan movement using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216617975U (en) |
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2022
- 2022-01-06 CN CN202220016762.0U patent/CN216617975U/en active Active
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