CN214154261U - Novel shaft and fan structure - Google Patents
Novel shaft and fan structure Download PDFInfo
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- CN214154261U CN214154261U CN202023107582.3U CN202023107582U CN214154261U CN 214154261 U CN214154261 U CN 214154261U CN 202023107582 U CN202023107582 U CN 202023107582U CN 214154261 U CN214154261 U CN 214154261U
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Abstract
The utility model discloses a novel shaft and fan structure, which comprises a rotating shaft, a fan, a cover plate and a plurality of bolts, wherein the end part of the rotating shaft is provided with a clamping groove, the fan is integrally provided with a clamping ring, and the fan is clamped on the clamping groove through the clamping ring; the outer end face of the clamping ring is parallel to or protrudes out of the outer end face of the rotating shaft; the outer end face of the rotating shaft is provided with a plurality of bolt holes, and the cover plate is provided with a plurality of through holes; the cover plate is pressed against the end face of the outer side of the clamping ring, and the bolt penetrates through the through hole and is in threaded connection with the corresponding bolt hole. The utility model discloses can make the connection between pivot and the fan more firm, the structure is more compact.
Description
Technical Field
The utility model relates to the technical field of electric machines, especially, relate to a novel structure of axle and fan.
Background
The compact motor requires an external fan to be mounted on the rotating shaft at the non-shaft-extending end of the motor to assist the motor in dissipating heat. However, the existing compact motor is fixed only using the retaining ring when the outer fan is installed. Under the condition that the fan is enlarged in use, only the retaining ring is used for fixing, the problems of vibration, unstable fixation and the like can be caused, the fan is easy to vibrate excessively, and the contact surface between the rotating shaft and the fan is damaged, so that the service life of the fan is shortened.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a novel structure of axle and fan can make the connection between pivot and the fan more firm, and the structure is more compact.
The technical scheme is as follows: in order to achieve the purpose, the novel shaft and fan structure comprises a rotating shaft, a fan, a cover plate and a plurality of bolts, wherein a clamping groove is formed in the end portion of the rotating shaft, a clamping ring is integrally arranged on the fan, and the fan is clamped on the clamping groove through the clamping ring; the outer end face of the clamping ring is parallel to or protrudes out of the outer end face of the rotating shaft; the outer end face of the rotating shaft is provided with a plurality of bolt holes, and the cover plate is provided with a plurality of through holes; the cover plate is pressed against the end face of the outer side of the clamping ring, and the bolt penetrates through the through hole and is in threaded connection with the corresponding bolt hole.
Further, the bolt comprises a first mounting bolt and a second mounting bolt; the bolt holes comprise straight bolt holes and inclined bolt holes, the straight bolt holes are perpendicular to the outer end face of the rotating shaft, and the inclined bolt holes are inclined at an angle with the outer end face of the rotating shaft; the cover plate is circular, and the outer side surface of the cover plate is divided into a semicircular plane part and a semicircular inclined plane part; the through holes comprise straight through holes arranged on the plane part and inclined through holes arranged on the inclined plane part; the first mounting bolt penetrates through the straight through hole and is matched with the straight bolt hole, and the second mounting bolt penetrates through the inclined through hole and is matched with the inclined bolt hole.
Further, the straight bolt holes and the inclined bolt holes are in the same plane, and the straight bolt holes and the inclined bolt holes are respectively arranged on two sides of the central axis of the rotating shaft; the inclined bolt hole is inclined towards one side far away from the straight bolt hole along the depth direction of the inclined bolt hole; the inclined surface part inclines towards one side far away from the rotating shaft.
Furthermore, the included angle between the inclined bolt hole and the horizontal plane is a first included angle, the included angle between the inclined plane part and the vertical plane is a second included angle, and the angle of the first included angle is smaller than the second included angle; an elastic gasket is arranged between the second mounting bolt and the inclined plane part.
Further, the distance between the nut of the first mounting bolt and the central axis of the rotating shaft is smaller than the distance between the nut of the second mounting bolt and the central axis of the rotating shaft.
Further, the length of the second mounting bolt is greater than the length of the first mounting bolt.
Has the advantages that: the novel structure of the shaft and the fan is provided with the cover plate, the cover plate is connected through the threaded hole on the shaft to replace the retainer ring to play a role in fixing, the appearance of the motor can be more compact in structure compared with the standard structure, and meanwhile, the idea of using and increasing the fan can be met; the bearing capacity of the force can bear larger axial force; the structure can effectively reduce the using amount of the shaft material and has certain economic advantages.
Drawings
FIG. 1 is a schematic view of a connection structure of a rotating shaft and a fan;
FIG. 2 is a schematic cross-sectional view of the rotating shaft and the cover plate;
FIG. 3 is a schematic cross-sectional view of a cover plate;
FIG. 4 is a schematic cross-sectional view of a spindle.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The novel shaft and fan structure shown in the attached drawings 1 to 4 comprises a rotating shaft 1, a fan 2, a cover plate 3 and a plurality of bolts, wherein a clamping groove 4 for mounting the fan 2 is formed in the end portion of the rotating shaft 1, and a clamping ring 5 is integrally arranged on the fan 2. As shown in fig. 1, the fan 2 is clamped on the clamping groove 4 through the clamping ring 5, and the clamping ring 5 is connected with the clamping groove 4 through a key. The end face of one side of the snap ring 5, which is far away from the rotating shaft 1, is an outer end face, and the outer end face of the snap ring 5 is parallel to or protrudes out of the outer end face of the rotating shaft 1, so that the cover plate 3 can fix the outer end face of the snap ring 5. The outer end face of the rotating shaft 1 is provided with a plurality of bolt holes, and the cover plate 3 is provided with a plurality of through holes. The cover plate 3 is pressed against the end face of the outer side of the clamping ring 5, and the bolt penetrates through the through hole and is in threaded connection with the corresponding bolt hole. Apron 3 is connected through epaxial screw hole, can replace the retaining ring to play the fixed action, compares in standard architecture, structurally can make the motor appearance compacter, can bear bigger axial force on the bearing capacity of power, and this structure can reduce the quantity of axle material in addition, has certain economic advantage.
The bolts include a first mounting bolt 6 and a second mounting bolt 7, and when mounting is performed, the first mounting bolt 6 is mounted prior to the second mounting bolt 7. As shown in fig. 2, the bolt holes include a straight bolt hole 8 and an oblique bolt hole 9, the straight bolt hole 8 is perpendicular to the outer end face of the rotating shaft 1, and the oblique bolt hole 9 is inclined at an angle to the outer end face of the rotating shaft 1. The cover plate 3 is circular, the outer edge of the cover plate 3 and the clamping ring 5 are mutually pressed, and the stress is uniform. The outer side surface of the cover plate 3 is divided into a semicircular flat surface portion 10 and a semicircular inclined surface portion 11 by a diameter. The through-holes include a straight through-hole 12 provided in the flat surface portion 10 and an inclined through-hole 13 provided in the inclined surface portion 11. The first mounting bolt 6 passes through the straight through hole 12 and engages with the straight bolt hole 8, and the second mounting bolt 7 passes through the oblique through hole 13 and engages with the oblique bolt hole 9. The first mounting bolts 6 are firstly installed to fix the plane part of the cover plate 3, and then the second mounting bolts 7 are installed, because the second mounting bolts 7 are installed obliquely, the second mounting bolts 7 can apply component force to the cover plate 3 along the radial direction of the rotating shaft 1, and the connection between the cover plate 3 and the end part of the rotating shaft 1 is more stable due to the radial component force. If only the straight bolt is adopted, the cover plate 3 may still move up and down relative to the rotating shaft 1 to cause vibration, and further the service life of the fan 2 is affected.
The straight bolt holes 8 and the inclined bolt holes 9 are in the same plane, and the straight bolt holes 8 and the inclined bolt holes 9 are respectively arranged on two sides of the central axis of the rotating shaft 1, so that the whole stress condition of the cover plate 1 is relatively uniform, and the fixing effect on the cover plate 1 is better. The inclined bolt hole 9 is inclined towards the side far away from the straight bolt hole 8 along the depth direction of the inclined bolt hole; the inclined surface portion 11 is inclined toward a side away from the rotation shaft 1. The radial component force applied by the second mounting bolt 7 is far away from the first mounting bolt 6, so that the cover plate 3 can be compressed and the cover plate 3 and the rotating shaft 1 can be attached more tightly.
The contained angle of oblique bolt hole 9 and horizontal plane is first contained angle, the contained angle of inclined plane portion 11 and vertical face is the second contained angle, the angle of first contained angle is less than the second contained angle makes second construction bolt 7 must compress the great one side of inclined plane portion 11 thickness when the installation to make apron 3 and pivot 1 laminate more closely. An elastic gasket is arranged between the second mounting bolt 7 and the inclined plane part 11. The elastic gasket is arranged, so that the second mounting bolt 7 and the inclined surface part 11 can still be relatively tightly attached when the first included angle and the second included angle are different.
Because second construction bolt 7 sets up for the slope, consequently makes first construction bolt 6's nut with the distance of the central axis of pivot 1 is less than second construction bolt 7's nut with the distance of the central axis of pivot 1 makes the installation atress of apron 3 relatively even, and stability is better.
The length of the second mounting bolt 7 is greater than that of the first mounting bolt 6, and the second mounting bolt 7 compresses the inclined plane part 11 and is subjected to a greater force, so that the second mounting bolt 7 is provided with a longer length to resist the deformation elasticity of the inclined plane part 11.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a novel structure of axle and fan which characterized in that: the fan comprises a rotating shaft (1), a fan (2), a cover plate (3) and a plurality of bolts, wherein a clamping groove (4) is formed in the end portion of the rotating shaft (1), a clamping ring (5) is integrally arranged on the fan (2), and the fan (2) is clamped on the clamping groove (4) through the clamping ring (5); the outer end face of the clamping ring (5) is parallel to or protrudes out of the outer end face of the rotating shaft (1); a plurality of bolt holes are formed in the outer end face of the rotating shaft (1), and a plurality of through holes are formed in the cover plate (3); the cover plate (3) is pressed against the end face of the outer side of the clamping ring (5), and the bolt penetrates through the through hole and is in threaded connection with the corresponding bolt hole.
2. The novel shaft and fan structure of claim 1, wherein: the bolts comprise a first mounting bolt (6) and a second mounting bolt (7); the bolt holes comprise straight bolt holes (8) and inclined bolt holes (9), the straight bolt holes (8) are perpendicular to the outer end face of the rotating shaft (1), and the inclined bolt holes (9) are inclined at an angle with the outer end face of the rotating shaft (1); the cover plate (3) is circular, and the outer side surface of the cover plate (3) is divided into a semicircular plane part (10) and a semicircular inclined plane part (11); the through holes comprise straight through holes (12) arranged on the plane part (10) and inclined through holes (13) arranged on the inclined plane part (11);
the first mounting bolt (6) penetrates through the straight through hole (12) and is matched with the straight bolt hole (8), and the second mounting bolt (7) penetrates through the inclined through hole (13) and is matched with the inclined bolt hole (9).
3. The novel shaft and fan structure of claim 2, wherein: the straight bolt holes (8) and the inclined bolt holes (9) are in the same plane, and the straight bolt holes (8) and the inclined bolt holes (9) are respectively arranged on two sides of the central axis of the rotating shaft (1); the inclined bolt hole (9) is inclined towards one side far away from the straight bolt hole (8) along the depth direction of the inclined bolt hole; the inclined surface part (11) inclines towards one side far away from the rotating shaft (1).
4. A novel shaft and fan structure as defined in claim 3, wherein: the included angle between the inclined bolt hole (9) and the horizontal plane is a first included angle, the included angle between the inclined plane part (11) and the vertical plane is a second included angle, and the angle of the first included angle is smaller than the second included angle; an elastic gasket is arranged between the second mounting bolt (7) and the inclined plane part (11).
5. The novel shaft and fan structure as claimed in claim 4, wherein: the distance between the nut of the first mounting bolt (6) and the central axis of the rotating shaft (1) is smaller than the distance between the nut of the second mounting bolt (7) and the central axis of the rotating shaft (1).
6. The novel shaft and fan structure of claim 5, wherein: the length of the second mounting bolt (7) is greater than the length of the first mounting bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023107582.3U CN214154261U (en) | 2020-12-22 | 2020-12-22 | Novel shaft and fan structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023107582.3U CN214154261U (en) | 2020-12-22 | 2020-12-22 | Novel shaft and fan structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214154261U true CN214154261U (en) | 2021-09-07 |
Family
ID=77528618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023107582.3U Active CN214154261U (en) | 2020-12-22 | 2020-12-22 | Novel shaft and fan structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214154261U (en) |
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2020
- 2020-12-22 CN CN202023107582.3U patent/CN214154261U/en active Active
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