CN211820070U - Fan blade assembly and fan with same - Google Patents
Fan blade assembly and fan with same Download PDFInfo
- Publication number
- CN211820070U CN211820070U CN202020491664.3U CN202020491664U CN211820070U CN 211820070 U CN211820070 U CN 211820070U CN 202020491664 U CN202020491664 U CN 202020491664U CN 211820070 U CN211820070 U CN 211820070U
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- fan
- hydraulic cylinder
- blade assembly
- drum
- fan drum
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Abstract
The utility model discloses a flabellum subassembly and have its fan, include: the fan drum is of a hollow columnar structure, and a plurality of through holes are formed in the side periphery of the fan drum at equal intervals; the tail ends of the blades are connected with the fan drum through a gear shaft penetrating through the through hole, and the gear shaft is composed of a shaft lever and a gear; the pneumatic cylinder, its with the fan drum is fixed and penetrate the fan drum, the flexible end of pneumatic cylinder is connected with a plurality of racks, the rack with gear engagement. The utility model can timely suck the stem leaves of the crops out of the engine by adjusting the angle of the fan blades and changing the wind direction.
Description
Technical Field
The utility model relates to a fan field. More specifically, the utility model relates to a flabellum subassembly and have its fan.
Background
An engine cooling fan is installed in a traditional agricultural harvesting machine such as a rice harvester, a corn harvester and a wheat harvester and is used for cooling an engine. In the advancing process of the agricultural harvesting machine, after stems and leaves of harvested crops are cut off, the stems and leaves can be sucked into an engine bin along with the advancing of the equipment and even sucked into the engine bin by an engine cooling fan and attached to the surface of an engine. Therefore, the cooling fan needs to be improved, the stems and leaves of the engine bin are blown in and cleaned out in time, and the difficulty of manual cleaning is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flabellum subassembly and have its fan, through the angle of adjustment flabellum, change the wind direction, in time with the stem leaf suction engine of crops.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a fan blade assembly, including:
the fan drum is of a hollow columnar structure, and a plurality of through holes are formed in the side periphery of the fan drum at equal intervals;
the tail ends of the blades are connected with the fan drum through a gear shaft penetrating through the through hole, and the gear shaft is composed of a shaft lever and a gear;
the base of the hydraulic cylinder is fixed with the fan drum and penetrates into the fan drum, the telescopic end of the hydraulic cylinder is connected with a plurality of racks, and the racks are meshed with the gears.
Preferably, the blade further comprises a pair of balancing weights which are respectively positioned at the upper side and the lower side of the tail end of the blade and fixed through bolts and nuts, and the bolts vertically penetrate through the gear shaft.
Preferably, a thrust bearing is connected between the gear shaft and the fan drum.
Preferably, the number of the blades is 5, and the blades are arranged on the side circumference of the fan drum at equal intervals.
Preferably, the telescopic end of the hydraulic cylinder is coaxially connected to one end of a spring, and the other end of the spring is connected with a top cover of the fan drum.
Preferably, the periphery of pneumatic cylinder is fixed with and passes through the lid, the inner circle that passes through the lid is hollow structure, and with the flexible coaxial setting of end of pneumatic cylinder, the inner circle interval that passes through the lid is provided with a plurality of first draw-in grooves, the periphery correspondence of the flexible end of pneumatic cylinder is provided with a plurality of second draw-in grooves, first draw-in groove and second draw-in groove pass through the guide block joint to the flexible end of injecing the pneumatic cylinder is along its axial motion.
The invention also provides a fan, which comprises the fan blade assembly.
The utility model discloses at least, include following beneficial effect: install the flabellum in the fan-drum and the same with ordinary engine fan function during normal work, when the crops stem leaf when the engine accumulation to a certain amount, through pneumatic cylinder drive rack downstream, drive gear revolve through the rack, make the flabellum rotate to become to induced draft by blowing, pass through fan suction engine storehouse with the stem leaf of crops. The inside of the cylinder body is driven by a gear rack, the transmission is stable and reliable, the rotating speed and displacement of the fan blades and the axial movement speed and displacement of the cylinder body are in a linear relation, and under the condition of a certain input flow, the rotation of the fan blades is uniform, so that the reversing impact force of the fan blades can be reduced, the abrasion of parts is reduced, and the service life of the parts is prolonged. The two rotating limit positions of the fan blades are ensured by mechanical limit, and the precision is high and the reliability is good.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is an exploded view of a fan blade assembly of the present invention;
FIG. 2 is an exploded view of the blade of the present invention;
fig. 3 is a construction diagram of the blade of the present invention.
Description of reference numerals: 1 fan drum, 2 blades, 3 perforation, 4 gear shafts, 5 gears, 6 hydraulic cylinders, 7 racks, 8 balancing weights, 9 bolts, 10 nuts, 11 thrust bearings, 12 springs, 13 top covers, 14 transparent covers, 15 first clamping grooves, 16 second clamping grooves and 17 guide blocks.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.
In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-3, the utility model provides a fan blade assembly, include:
the fan drum 1 is of a hollow columnar structure, and a plurality of through holes 3 are formed in the side periphery of the fan drum 1 at equal intervals;
a plurality of blades 2, the tail ends of which are connected with the fan drum 1 through a gear shaft 4 penetrating through a through hole 3, wherein the gear shaft 4 is composed of a shaft rod and a gear 5;
the base of the hydraulic cylinder 6 is fixed with the fan drum 1 and penetrates into the fan drum 1, the telescopic end of the hydraulic cylinder 6 is connected with a plurality of racks 7, and the racks 7 are meshed with the gear 5.
In the technical scheme, the fan blades installed in the fan drum 1 have the same function as a fan of a common engine during normal work, when the stems and leaves of crops accumulate to a certain amount in the engine, the hydraulic cylinder 6 drives the rack 7 to move downwards, the rack 7 drives the gear 5 to rotate, the fan blades rotate to change blowing into air suction, and the stems and leaves of the crops are sucked out of the engine bin through the fan.
In a preferred embodiment of the fan blade assembly of the present application, the fan blade assembly further includes a pair of balancing weights 8, which are respectively located at the upper and lower sides of the end of the blade 2 and fixed by bolts 9 and nuts 10, and the bolts 9 vertically penetrate the gear shaft 4 to ensure the blowing and sucking effect of the fan blade.
In a preferred embodiment of the fan blade assembly of the present application, a thrust bearing 11 is connected between the gear shaft 4 and the fan drum 1.
In a preferred embodiment of the fan blade assembly of the present application, the number of the blades 2 is 5, and the blades are disposed at equal intervals on the lateral periphery of the fan drum 1.
In a preferred embodiment of the fan blade assembly of the present application, the telescopic end of the hydraulic cylinder 6 is coaxially connected to one end of a spring 12, and the other end of the spring 12 is connected to a top cover 13 of the fan drum 1.
In the preferred embodiment of the flabellum subassembly of this application, the periphery of pneumatic cylinder 6 is fixed with and passes through lid 14, the inner circle that passes through lid 14 is hollow structure, and with the coaxial setting of the flexible end of pneumatic cylinder 6, the inner circle interval that passes through lid 14 is provided with a plurality of first draw-in grooves 15, the periphery correspondence of the flexible end of pneumatic cylinder 6 is provided with a plurality of second draw-in grooves 16, first draw-in groove 15 and second draw-in groove 16 pass through guide block 17 joint to the flexible end of injecing pneumatic cylinder 6 is along its axial motion, has restricted circumferencial direction's motion, and the motion form of the piston of pneumatic cylinder 6 is definite consequently, can reduce 2 pivoted vibrations of blade and noise.
In the present embodiment, the blade 2 is in the normal working position, and the blade 2 angle is designed to be +35 °, but not limited to this angle. The hydraulic cylinder 6 is in an oil inlet state, 3.5-4 MPa hydraulic oil enters the hydraulic cylinder 6 from the oil inlet nozzle, the telescopic end of the hydraulic cylinder 6 overcomes the force of the spring 12 to drive the rack 7 installed on the hydraulic cylinder to move axially upwards, the rack 7 drives the gear 5 on the blade 2 to rotate, the blade 2 is rotated, the telescopic end of the hydraulic cylinder 6 stops moving when moving to the spigot surface of the top cover 13, the hydraulic cylinder 6 maintains pressure, the angle of the corresponding blade 2 is designed to be +35 degrees, and forward wind (blowing) is output at the moment.
When the blade 2 is in the air suction operation, the angle of the blade 2 is designed to be-30 degrees, but is not limited to the angle. The hydraulic cylinder 6 is in a pressure relief state, the oil inlet nozzle is communicated with the oil discharge loop, the telescopic end of the hydraulic cylinder 6 moves downwards along the axial direction under the action of the elastic force of the spring 12 to discharge oil, meanwhile, the telescopic end of the hydraulic cylinder 6 drives the rack 7 installed on the hydraulic cylinder to move downwards along the axial direction, the movement of the rack 7 drives the gear 5 on the blade 2 to rotate, and the rotation of the blade 2 in the direction is realized. The hydraulic cylinder 6 stops moving when moving to the spigot surface of the through cover 14, the rotating angle of the corresponding blade 2 is minus 30 degrees, and then reverse wind (air suction) is output.
The present application further provides a fan, installed in an engine, as a cooling fan, the fan including any one of the above fan blade assemblies.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields suitable for the invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and embodiments shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (7)
1. A fan blade assembly, comprising:
the fan drum is of a hollow columnar structure, and a plurality of through holes are formed in the side periphery of the fan drum at equal intervals;
the tail ends of the blades are connected with the fan drum through a gear shaft penetrating through the through hole, and the gear shaft is composed of a shaft lever and a gear;
the base of the hydraulic cylinder is fixed with the fan drum and penetrates into the fan drum, the telescopic end of the hydraulic cylinder is connected with a plurality of racks, and the racks are meshed with the gears.
2. The fan blade assembly of claim 1, further comprising a pair of weights respectively located at upper and lower sides of the blade tip and fixed by bolts and nuts, wherein the bolts vertically pass through the gear shaft.
3. The fan blade assembly of claim 1 or 2, wherein a thrust bearing is coupled between the gear shaft and the fan drum.
4. The fan blade assembly of claim 3, wherein the number of the blades is 5, and the blades are arranged on the lateral periphery of the fan drum at equal intervals.
5. The fan blade assembly of claim 1, wherein the telescoping end of the hydraulic cylinder is coaxially connected to one end of a spring, the other end of the spring being connected to the top cover of the drum fan.
6. The fan blade assembly of claim 1 or 5, wherein a transparent cover is fixed on the outer periphery of the hydraulic cylinder, an inner ring of the transparent cover is of a hollow structure and is coaxially arranged with the telescopic end of the hydraulic cylinder, a plurality of first clamping grooves are arranged at intervals on the inner ring of the transparent cover, a plurality of second clamping grooves are correspondingly arranged on the outer periphery of the telescopic end of the hydraulic cylinder, and the first clamping grooves and the second clamping grooves are clamped through guide blocks to limit the telescopic end of the hydraulic cylinder to move along the axial direction of the telescopic end.
7. A fan comprising the blade assembly of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020491664.3U CN211820070U (en) | 2020-04-07 | 2020-04-07 | Fan blade assembly and fan with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020491664.3U CN211820070U (en) | 2020-04-07 | 2020-04-07 | Fan blade assembly and fan with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820070U true CN211820070U (en) | 2020-10-30 |
Family
ID=73142718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020491664.3U Expired - Fee Related CN211820070U (en) | 2020-04-07 | 2020-04-07 | Fan blade assembly and fan with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820070U (en) |
-
2020
- 2020-04-07 CN CN202020491664.3U patent/CN211820070U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |