CN213478686U - Air quantity adjusting device of centrifugal fan - Google Patents
Air quantity adjusting device of centrifugal fan Download PDFInfo
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- CN213478686U CN213478686U CN202021820794.3U CN202021820794U CN213478686U CN 213478686 U CN213478686 U CN 213478686U CN 202021820794 U CN202021820794 U CN 202021820794U CN 213478686 U CN213478686 U CN 213478686U
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- fixedly connected
- bevel gear
- adjusting device
- centrifugal fan
- bearing
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Abstract
The utility model discloses a centrifugal fan air volume adjusting device relates to air volume adjusting device technical field, can not automatically regulated to present centrifugal fan's the amount of wind, needs artifical the regulation, and adjusting device can not automatic fixed problem, the following scheme of now proposing, including the body, two first bearings of bottom fixedly connected with of body, the inside of first bearing is all fixed the cover and is equipped with the axis of rotation, two blades of the equal fixedly connected with in outside of axis of rotation, the equal fixedly connected with gear in top of axis of rotation, the first dead lever of top outer wall fixedly connected with of body, the top fixedly connected with second bearing of first dead lever, the fixed cover in inside of second bearing is equipped with reciprocal screw rod, the bevel gear is adjusted to the positive fixedly connected with of reciprocal screw rod. The utility model discloses not only made things convenient for automatically regulated centrifugal fan's the amount of wind, still made things convenient for adjusting device's automation fixed, automatic operation has improved the regulation accuracy, is fit for marketing.
Description
Technical Field
The utility model relates to an air regulation device technical field especially relates to a centrifugal fan air regulation device.
Background
The centrifugal fan is a driven fluid machine which can increase the gas pressure and discharge gas by means of the input mechanical energy, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, but the air quantity of the existing centrifugal fan can not be automatically adjusted, manual adjustment is needed, and an adjusting device can not be automatically fixed, so that the centrifugal fan air quantity adjusting device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of centrifugal fan air volume adjusting device, the amount of wind of having solved present centrifugal fan can not automatically regulated, needs artifical the regulation, and adjusting device can not automatic fixed problem moreover.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an air quantity adjusting device of a centrifugal fan comprises a pipe body, wherein the bottom of the pipe body is fixedly connected with two first bearings, the inner parts of the first bearings are fixedly sleeved with rotating shafts, the outer parts of the rotating shafts are fixedly connected with two blades, the top ends of the rotating shafts are fixedly connected with gears, the outer wall of the top of the tube body is fixedly connected with a first fixed rod, the top end of the first fixed rod is fixedly connected with a second bearing, a reciprocating screw rod is fixedly sleeved in the second bearing, the front surface of the reciprocating screw is fixedly connected with an adjusting bevel gear, the outer thread of the reciprocating screw is sleeved with a moving rod, a rack is fixedly connected at the left end of the moving rod, the rack is in meshing transmission with the gear, a power mechanism is fixedly connected on the inner wall of the top of the tube body, the inside activity cover of body is equipped with the fan, the outside fixed cover of fan is equipped with fixed establishment.
Preferably, the top of the pipe body is fixedly connected with a clamping plate, the movable sleeve of the moving rod is arranged in the clamping plate, the bottom of the rack is movably connected with a cushion block, and the bottom of the cushion block is fixedly connected to the pipe body.
Preferably, the power mechanism comprises a push rod motor fixedly connected with the outer wall of the top of the tube body, an output shaft of the push rod motor is fixedly connected with a moving block, the top end of the moving block is fixedly connected with a double-shaft motor, a right-end output shaft of the double-shaft motor is fixedly connected with a first bevel gear, a left-end output shaft of the double-shaft motor is fixedly connected with a second bevel gear, and the second bevel gear is in meshing transmission with the adjusting bevel gear.
Preferably, the fixing mechanism comprises a third bearing fixedly connected with the outer wall of the top of the pipe body, the outer wall of the bottom of the pipe body is fixedly connected with the third bearing, a screw rod is fixedly sleeved inside the third bearing, a fixing plate is sleeved outside the screw rod in a threaded manner, a fixing plate is positioned above the screw rod, a third bevel gear is fixedly connected to the top end of the screw rod above the fixing plate, and the third bevel gear is in meshing transmission with the first bevel gear.
Preferably, two the guiding hole has all been seted up to the inside of fixed plate, the equal fixedly connected with guide bar in top and the bottom of body, the guide bar runs through the guiding hole.
Preferably, the reciprocating screw rod is connected with the adjusting bevel gear through a bolt, and the moving rod is connected with the rack through a bolt.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an installation body, the axis of rotation, the blade, the gear, reciprocal screw rod, adjust bevel gear, the carriage release lever, the rack, the cardboard, the cushion, power unit and fixed establishment isotructure, wherein two blades of the equal fixedly connected with in outside of axis of rotation, reciprocal screw rod's positive fixedly connected with adjusts bevel gear, the top inner wall fixedly connected with power unit of body, the inside movable sleeve of body is equipped with the fan, the outside fixed cover of fan is equipped with fixed establishment, thereby automatic adjustment and automatic fixation have been accomplished, the device is novel in design, and the operation is thus simple, not only make things convenient for automatic adjustment centrifugal fan's the amount of wind, adjusting device's automatic fixation has still been made things convenient for, automatic operation, the regulation accuracy has.
Drawings
Fig. 1 is a schematic front view of an air volume adjusting device of a centrifugal fan according to the present invention;
fig. 2 is a schematic view of a top view structure of a reciprocating screw of the centrifugal fan air volume adjusting device of the present invention;
fig. 3 is the utility model provides a partial enlarged view of a department of centrifugal fan air regulation device.
In the figure: the device comprises a pipe body 1, a rotating shaft 2, blades 3, gears 4, a reciprocating screw rod 5, an adjusting bevel gear 6, a moving rod 7, a rack 8, a fan 9, a clamping plate 10, a cushion block 11, a push rod motor 12, a double-shaft motor 13, a first bevel gear 14, a second bevel gear 15, a screw rod 16, a fixing plate 17 and a third bevel gear 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a centrifugal fan air volume adjusting device, including body 1, two first bearings of bottom fixedly connected with of body 1, the fixed cover in inside of first bearing is all equipped with axis of rotation 2, two blades 3 of the equal fixedly connected with in outside of axis of rotation 2, the equal fixedly connected with gear 4 in top of axis of rotation 2, the first dead lever of top outer wall fixedly connected with of body 1, the top fixedly connected with second bearing of first dead lever, the fixed cover in inside of second bearing is equipped with reciprocating screw 5, reciprocating screw 5's positive fixedly connected with regulation bevel gear 6, reciprocating screw 5's outside threaded sleeve is equipped with carriage release lever 7, the left end fixedly connected with rack 8 of carriage release lever 7, rack 8 and gear 4 meshing transmission, the top inner wall fixedly connected with power unit of body 1, the inside movable sleeve of body 1 is equipped with fan 9, the outside fixed cover of fan 9 is equipped.
In this embodiment, the top fixedly connected with cardboard 10 of body 1, the movable sleeve of carriage release lever 7 is established in the inside of cardboard 10, and the bottom swing joint of rack 8 has cushion 11, and the bottom fixed connection of cushion 11 is on body 1.
In this embodiment, the power mechanism includes a push rod motor 12 fixedly connected to the outer wall of the top of the pipe body 1, an output shaft of the push rod motor 12 is fixedly connected to a moving block, a top end of the moving block is fixedly connected to a dual-shaft motor 13, a right end output shaft of the dual-shaft motor 13 is fixedly connected to a first bevel gear 14, a left end output shaft of the dual-shaft motor 13 is fixedly connected to a second bevel gear 15, and the second bevel gear 15 is in meshing transmission with the adjusting bevel gear 6.
In this embodiment, fixed establishment include with the top outer wall fixed connection's of body 1 third bearing, the bottom outer wall fixedly connected with third bearing of body 1, the fixed cover of the inside of third bearing is equipped with screw rod 16 all, the equal thread bush in outside of screw rod 16 is equipped with fixed plate 17, the top fixedly connected with fixed plate 17 that is located top screw rod 16, the top fixedly connected with third bevel gear 18 that is located top screw rod 16, third bevel gear 18 and the meshing transmission of first bevel gear 14.
In this embodiment, the guiding hole has all been seted up to two fixed plate 17's inside, the equal fixedly connected with guide bar in top and the bottom of body 1, and the guide bar runs through the guiding hole.
In this embodiment, the reciprocating screw 5 is connected to the adjustment bevel gear 6 by a bolt, and the moving rod 7 is connected to the rack 8 by a bolt.
The working principle is that firstly, the fan mouth is sleeved inside the pipe body 1, then the double-shaft motor 13 is started, the right-end output shaft of the double-shaft motor 13 drives the first bevel gear 14 to be meshed with the third bevel gear 18 for transmission, so as to drive the screw 16 positioned above to rotate, the screw 16 drives the fixing plate 17 to be clamped towards the fan mouth, so as to fix the device with the centrifugal fan, then the push rod motor 12 is started, the output shaft of the push rod motor 12 drives the double-shaft motor 13 to move leftwards, the left-end output shaft of the double-shaft motor 13 drives the second bevel gear 15 to be meshed with the adjusting bevel gear 6 for transmission, so as to drive the reciprocating screw 5 to rotate, the reciprocating screw 5 drives the moving rod 7 to move, the moving rod 7 drives the rack 8 to be meshed with the two gears 4 for transmission, so as to drive the four blades 3 to change angles, when the blades 3 and the rack 8 form, the air output is minimum to adjust the size of air output, the device has not only made things convenient for automatically regulated centrifugal fan's amount of wind, has still made things convenient for adjusting device's automatic fixed, and automatic operation has improved the regulation accuracy, is fit for the marketing.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The centrifugal fan air volume adjusting device comprises a pipe body (1) and is characterized in that two first bearings are fixedly connected to the bottom of the pipe body (1), rotating shafts (2) are fixedly sleeved inside the first bearings, two blades (3) are fixedly connected to the outer portions of the rotating shafts (2), gears (4) are fixedly connected to the top ends of the rotating shafts (2), a first fixing rod is fixedly connected to the outer wall of the top of the pipe body (1), a second bearing is fixedly connected to the top end of the first fixing rod, a reciprocating screw rod (5) is fixedly sleeved inside the second bearing, an adjusting bevel gear (6) is fixedly connected to the front side of the reciprocating screw rod (5), a moving rod (7) is sleeved on an outer thread of the reciprocating screw rod (5), and a rack (8) is fixedly connected to the left end of the moving rod (7), the gear rack (8) is in meshed transmission with the gear (4), a power mechanism is fixedly connected to the inner wall of the top of the pipe body (1), a fan (9) is movably sleeved inside the pipe body (1), and a fixing mechanism is fixedly sleeved outside the fan (9).
2. The centrifugal fan air volume adjusting device is characterized in that a clamping plate (10) is fixedly connected to the top of the pipe body (1), the moving rod (7) is movably sleeved inside the clamping plate (10), a cushion block (11) is movably connected to the bottom of the rack (8), and the bottom of the cushion block (11) is fixedly connected to the pipe body (1).
3. The centrifugal fan air volume adjusting device according to claim 1, wherein the power mechanism comprises a push rod motor (12) fixedly connected with the outer wall of the top of the tube body (1), an output shaft of the push rod motor (12) is fixedly connected with a moving block, a top end of the moving block is fixedly connected with a double-shaft motor (13), a right end output shaft of the double-shaft motor (13) is fixedly connected with a first bevel gear (14), a left end output shaft of the double-shaft motor (13) is fixedly connected with a second bevel gear (15), and the second bevel gear (15) is in meshing transmission with the adjusting bevel gear (6).
4. The centrifugal fan air volume adjusting device according to claim 3, wherein the fixing mechanism comprises a third bearing fixedly connected with the outer wall of the top of the tube body (1), the outer wall of the bottom of the tube body (1) is fixedly connected with the third bearing, a screw (16) is fixedly sleeved inside each third bearing, a fixing plate (17) is sleeved outside each screw (16) in a threaded manner, the fixing plate (17) is fixedly connected to the top end of the screw (16) above, a third bevel gear (18) is fixedly connected to the top end of the screw (16) above, and the third bevel gear (18) is in meshing transmission with the first bevel gear (14).
5. The air volume adjusting device of the centrifugal fan as claimed in claim 4, wherein guide holes are formed in the two fixing plates (17), guide rods are fixedly connected to the top and the bottom of the tube body (1), and the guide rods penetrate through the guide holes.
6. The air volume adjusting device of the centrifugal fan is characterized in that the reciprocating screw (5) is connected with the adjusting bevel gear (6) through a bolt, and the moving rod (7) is connected with the rack (8) through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820794.3U CN213478686U (en) | 2020-08-27 | 2020-08-27 | Air quantity adjusting device of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021820794.3U CN213478686U (en) | 2020-08-27 | 2020-08-27 | Air quantity adjusting device of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213478686U true CN213478686U (en) | 2021-06-18 |
Family
ID=76415685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021820794.3U Active CN213478686U (en) | 2020-08-27 | 2020-08-27 | Air quantity adjusting device of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213478686U (en) |
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2020
- 2020-08-27 CN CN202021820794.3U patent/CN213478686U/en active Active
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