CN219012912U - Industrial fan driven by three-stage planetary gear - Google Patents
Industrial fan driven by three-stage planetary gear Download PDFInfo
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- CN219012912U CN219012912U CN202222483459.4U CN202222483459U CN219012912U CN 219012912 U CN219012912 U CN 219012912U CN 202222483459 U CN202222483459 U CN 202222483459U CN 219012912 U CN219012912 U CN 219012912U
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Abstract
The utility model relates to the technical field of industrial fans, in particular to an industrial fan driven by three-stage planetary gears, a permanent magnet motor drives fan blades to rotate after being decelerated by planetary gear sets, the permanent magnet motor is arranged in a mounting frame to fix the permanent magnet motor, the upper end of the mounting frame extends outwards to form a second mounting part with larger transverse size, so that the connection strength between the upper end and a roof is improved, the mounting frame is positioned around the permanent magnet motor, the rigidity in the vertical direction is improved, and the deformation of the mounting frame in a vertical plane is avoided. The beneficial effects of the utility model are as follows: through the setting of mounting bracket, strengthened greatly with the wall body of top, roof etc. connection strength, rigidity, can resist because the dead weight of jumbo size flabellum, receive the swing effect in vertical plane that the air current blows and arouse, guarantee the horizontal (horizontal direction) intensity and the rigidity of mounting bracket, avoid the mounting bracket excessively to warp, receive horizontal shear stress even and be broken.
Description
Technical Field
The utility model relates to the technical field of industrial fans, in particular to an industrial fan driven by a three-stage planetary gear.
Background
Industrial fans, abbreviated as HVLS (High Volume-Low Speed) fans, also known as industrial energy-saving fans, are currently marketed as large ceiling fans with diameters of 7.3 meters-! The device can most effectively push a large amount of air to move, generates super-large air quantity, and has the rotating speed of only 50RPM, so that the space forms a moving and circulating air flow field, which is incomparable with other devices.
The vertical connecting rod is hung on the roof, and because the length of the fan blade is large, the moment generated by the fan blade (dead weight and affected by airflow) is large, so that the transverse shearing stress borne by the vertically arranged connecting rod is large, the strength requirement on the connecting rod is high, and the connecting rod is easy to bend and even break.
Therefore, there is a need for a three stage planetary gear driven industrial fan to address the above problems.
Disclosure of Invention
In order to solve the above problems, namely, to solve the problem that the large-diameter fan blade may bend and break the connecting rod under the dual actions of dead weight and air flow, the utility model provides a three-stage planetary gear driven industrial fan, which comprises:
a permanent magnet motor;
the planetary gear set comprises a sun gear, a transmission gear and an internal gear which are sequentially meshed from inside to outside, and the sun gear is coaxially and fixedly connected with a power output shaft of the permanent magnet motor;
the outer edges of the inner gears extend outwards to form a first mounting part, the fan blades are fixed on the first mounting part, and the fan blades are multiple and are uniformly arranged on the periphery side of the central gear; and the mounting frame is internally provided with a containing groove for containing the shell of the permanent magnet motor, the upper end of the mounting frame extends outwards to form a second mounting part, the second mounting part is provided with a mounting through hole, the mounting frame is fixed on the roof by a first connecting piece penetrating through the mounting through hole, the lower end of the mounting frame is rotatably provided with a rotating plate, and the rotating plate is fixedly connected with the inner gear.
Further, the transmission gears are at least two and are uniformly arranged on the circumferential side of the sun gear.
Further, the first installation part is provided with a sinking groove, the sinking groove is provided with a connecting through hole penetrating up and down, the near end of the fan blade is provided with a fixing through hole, and the second connecting piece penetrates through the fixing through hole and then is screwed in the connecting through hole.
Further, the mounting frame comprises an upper fixing ring, a lower supporting plate and a supporting plate fixed between the upper fixing ring and the lower supporting plate and vertically arranged, a heat dissipation through hole is formed in the supporting plate, and a through hole for the rotating shaft to pass through is formed in the middle of the supporting plate.
Further, the rotary plate comprises a plurality of mounting rods and bearings, wherein the mounting rods are arranged at the upper ends of the mounting rods, the plurality of mounting rods are arranged at the lower ends of the mounting rods, accommodating grooves for accommodating the bearings are formed in the lower ends of the mounting rods, the outer rings of the bearings are fixed in the accommodating grooves, and the inner rings of the bearings are fixed in the rotary plate;
the outer edge of the lower supporting plate extends outwards to form a mounting groove in clearance fit with the mounting protrusion;
the third connecting piece sequentially penetrates through the mounting groove and the mounting protrusion through hole to fix the mounting rod on the lower supporting plate.
Further, the device further comprises a blocking plate, wherein the blocking plate can be covered on the lower end opening of the internal gear in an opening and closing mode.
The beneficial effects of the utility model are as follows:
by arranging the mounting frame, the connection strength and rigidity between the mounting frame and the wall body, roof and the like above the mounting frame are greatly enhanced, the swinging effect in a vertical plane caused by the dead weight of the large-size fan blade and the blowing of air flow can be resisted, the transverse (horizontal) strength and rigidity of the mounting frame are ensured, and the mounting frame is prevented from being excessively deformed and even broken due to transverse shearing stress;
the central gear in the middle of the permanent magnet motor is driven to rotate, the central gear is meshed with the transmission gear, and the transmission gear is meshed with the internal gear, so that the internal gear is driven to rotate, finally, the fan blades fixed at the edge of the internal gear are driven to rotate, and three-stage transmission is carried out, so that the transmission ratio is greatly reduced, the high-speed rotation of the permanent magnet motor is converted into the low-speed rotation of the fan blades, and the requirements of large diameter and low rotation speed are met.
Drawings
FIG. 1 is a schematic diagram of an industrial fan driven by three stages of planetary gears from a first perspective;
FIG. 2 is an enlarged view of a portion of the region Z1 in FIG. 1;
FIG. 3 is an enlarged view of a portion of region Z2 of FIG. 1;
FIG. 4 is a schematic perspective view of the second view of FIG. 1;
FIG. 5 is a schematic perspective view of the third perspective view of FIG. 1, wherein the plugging plate is not shown in order to illustrate the internal structure of the planetary gear set;
fig. 6 is a partial enlarged view of the region Z3 in fig. 5.
In the figure:
1. a permanent magnet motor; 11. a housing of a permanent magnet motor; 12. a power output shaft;
2. a planetary gear set; 21. a sun gear; 22. a transmission gear; 23. an internal gear; 231. a first mounting portion; 2311. a sinking groove;
3. a fan blade;
4. a mounting frame; 41. a receiving groove; 42. a second mounting portion; 421. mounting through holes; 43. an upper fixing ring; 44. a lower support plate; 441. a mounting groove; 45. a support plate; 46. a heat dissipation through hole;
5. a rotating plate;
6. a second connector;
7. a mounting rod; 71. mounting the bulge; 72. the accommodating groove;
8. a bearing;
9. and a plugging plate.
Description of the embodiments
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
Referring to fig. 1 to 6, an embodiment of the present utility model discloses a three-stage planetary gear driven industrial fan, which includes:
a permanent magnet motor 1;
a planetary gear set 2 including a sun gear 21, a transmission gear 22, and an internal gear 23 (a gear having an internal tooth profile, serving as a planetary disc) which are sequentially meshed from inside to outside, the sun gear being fixedly connected with the power output shaft coaxial 12 of the permanent magnet motor;
a plurality of blades 3 which are uniformly arranged on the circumferential side of the sun gear and extend outward from the outer edge of the internal gear to form a first mounting portion 231 to which the blades are fixed; and the mounting frame 4, the inside accommodation groove 41 that holds permanent magnet motor's casing 11 that forms of mounting frame, the upper end of mounting frame outwards extends in order to form second installation department 42, the installation through-hole 421 has been seted up to the second installation department, and first connecting piece passes the installation through-hole will the mounting frame is fixed in the roof, rotor plate 5 is rotatably installed to the lower extreme of mounting frame, the rotor plate with internal gear fixed connection.
The installation of the installation frame greatly enhances the connection strength and rigidity of the wall body, the roof and the like above, can resist the swinging effect in the vertical plane caused by the dead weight of the large-size fan blade and the blowing of airflow, ensures the transverse (horizontal direction) strength and rigidity of the installation frame, and avoids the excessive deformation of the installation frame and even breakage caused by transverse shearing stress.
The central gear in the middle of the permanent magnet motor is driven to rotate, the central gear is meshed with the transmission gear, and the transmission gear is meshed with the internal gear, so that the internal gear is driven to rotate, finally, the fan blades fixed at the edge of the internal gear are driven to rotate, and three-stage transmission is carried out, so that the transmission ratio is greatly reduced, the high-speed rotation of the permanent magnet motor is converted into the low-speed rotation of the fan blades, and the requirements of large diameter and low rotation speed are met.
In addition, the transmission gears are at least two and are uniformly arranged on the circumferential side of the sun gear. And improves the transmission stability of the planetary gear set.
It should be further noted that, the first mounting portion is provided with a sinking groove 2311, the sinking groove is provided with a connecting through hole penetrating up and down, the proximal end (the end close to the rotating shaft) of the fan blade is provided with a fixing through hole, and the second connecting piece 6 (such as a locking bolt) passes through the fixing through hole and then is screwed in the connecting through hole. The fan blade is fixed in the sinking groove, the sinking groove plays a role in positioning the near end of the fan blade, and meanwhile, under the condition that other conditions are the same, the fan blade can slightly sink (the sinking amplitude is equal to the depth of the sinking groove), so that the ground distance is closer, the fan blade is more beneficial to conveying wind to the ground and people or objects on the ground, and the blowing effect of the fan blade is improved.
It should be further noted that, with reference to fig. 2, one specific structure of the mounting frame includes an upper fixing ring 43, a lower support plate 44, and a support plate 45 fixed between the two and vertically arranged, a heat dissipation through hole 46 is formed in the support plate, which is beneficial to heat dissipation of the permanent magnet motor, and a through hole for passing through the rotating shaft is formed in the middle of the support plate.
Still another embodiment may further include a mounting rod 7 and a bearing 8, with continued reference to fig. 2, the mounting rod having a plurality of mounting protrusions 71 formed at an upper end thereof, a plurality of mounting rods having a receiving recess 72 formed at a lower end thereof for receiving the bearing, an outer ring of the bearing being fixed in the receiving recess, and an inner ring of the bearing being fixed to the rotating plate;
the outer edge of the lower supporting plate extends outwards to form a mounting groove in clearance fit with the mounting protrusion;
the third connecting piece sequentially penetrates through the mounting groove and the mounting protrusion through hole to fix the mounting rod on the lower supporting plate.
The installation pole is Z type extension, and the upper end of installation pole can dock with the lower bolster, then uses third connecting piece (like locking bolt locking) to conveniently assemble bearing, installation pole and dismantle.
Finally, the embodiment of the present utility model may further include a blocking plate, with continued reference to fig. 5, which may cover the lower end opening of the internal gear in an openable and closable manner. Through the shutoff board, carry out the shutoff to the cavity of internal gear, avoid the foreign matter to get into, the meshing of protection sun gear, drive gear and internal gear. Ensuring the reliable operation of the device.
It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.
Claims (6)
1. An industrial fan driven by three stages of planetary gears, comprising:
a permanent magnet motor;
the planetary gear set comprises a sun gear, a transmission gear and an internal gear which are sequentially meshed from inside to outside, and the sun gear is coaxially and fixedly connected with a power output shaft of the permanent magnet motor;
the outer edges of the inner gears extend outwards to form a first mounting part, the fan blades are fixed on the first mounting part, and the fan blades are multiple and are uniformly arranged on the periphery side of the central gear; and
the mounting bracket, the inside accommodation groove that holds permanent magnet machine's casing that forms of mounting bracket, the upper end of mounting bracket outwards extends in order to form second installation department, the installation through-hole has been seted up to second installation department, and first connecting piece passes the installation through-hole will the mounting bracket is fixed in the roof, the rotor plate is rotatably installed to the lower extreme of mounting bracket, the rotor plate with internal gear fixed connection.
2. The three stage planetary gear driven industrial fan of claim 1, wherein the number of drive gears is at least two and evenly disposed on the peripheral side of the sun gear.
3. The three-stage planetary gear driven industrial fan according to claim 2, wherein the first mounting portion is provided with a sinking groove, the sinking groove is provided with a connecting through hole penetrating up and down, the proximal end of the fan blade is provided with a fixing through hole, and the second connecting piece is screwed in the connecting through hole after penetrating through the fixing through hole.
4. The three-stage planetary gear driven industrial fan according to claim 3, wherein the mounting frame comprises an upper fixing ring, a lower supporting plate and a supporting plate fixed between the upper fixing ring and the lower supporting plate and vertically arranged, the supporting plate is provided with a heat dissipation through hole, and the middle part of the supporting plate is provided with a through hole.
5. The three stage planetary gear driven industrial fan of claim 4, further comprising a mounting bar and a bearing, wherein the mounting bar has a plurality of mounting protrusions formed at an upper end thereof, the plurality of mounting bars have a receiving groove formed at a lower end thereof for receiving the bearing, an outer ring of the bearing is fixed in the receiving groove, and an inner ring of the bearing is fixed to the rotating plate;
the outer edge of the lower supporting plate extends outwards to form a mounting groove in clearance fit with the mounting protrusion;
the third connecting piece sequentially penetrates through the mounting groove and the mounting protrusion through hole to fix the mounting rod on the lower supporting plate.
6. The three stage planetary gear driven industrial fan of claim 5, further comprising a blocking plate that is openably and closably covered over the lower opening of the inner gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222483459.4U CN219012912U (en) | 2022-09-20 | 2022-09-20 | Industrial fan driven by three-stage planetary gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222483459.4U CN219012912U (en) | 2022-09-20 | 2022-09-20 | Industrial fan driven by three-stage planetary gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219012912U true CN219012912U (en) | 2023-05-12 |
Family
ID=86236895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222483459.4U Active CN219012912U (en) | 2022-09-20 | 2022-09-20 | Industrial fan driven by three-stage planetary gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219012912U (en) |
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2022
- 2022-09-20 CN CN202222483459.4U patent/CN219012912U/en active Active
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