CN215170883U - Variable double-air-inlet centrifugal fan - Google Patents
Variable double-air-inlet centrifugal fan Download PDFInfo
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- CN215170883U CN215170883U CN202120225461.4U CN202120225461U CN215170883U CN 215170883 U CN215170883 U CN 215170883U CN 202120225461 U CN202120225461 U CN 202120225461U CN 215170883 U CN215170883 U CN 215170883U
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- centrifugal fan
- double
- output shaft
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- air
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Abstract
The utility model discloses a variable two air inlet centrifugal fan, including the centrifugal fan body, the lower extreme of centrifugal fan body is equipped with the supporting seat, the upper end of centrifugal fan body is equipped with the air outlet, this internal fixedly connected with mounting panel of centrifugal fan, be equipped with the biax motor on the mounting panel, be equipped with the drive mechanism who is used for providing the required power of centrifugal fan body on the output shaft of biax motor, be equipped with the circular recess on the output shaft of biax motor, two all be equipped with the transmission shaft in the circular recess, a pair of installation piece of fixedly connected with is a pair of on the output shaft of biax motor is a pair of be equipped with the stop gear who is used for spacing transmission shaft on the installation piece, be equipped with the power unit who is used for providing the required power of stop gear on the output shaft of biax motor. The utility model discloses rational in infrastructure, it can carry out two-way air inlet, can also realize the quick dismantlement and the installation of transmission shaft simultaneously.
Description
Technical Field
The utility model relates to a centrifugal fan technical field especially relates to a variable two air inlet centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is widely used for ventilation, dust exhaust, cooling and the like of factories, mines, tunnels, cooling towers, vehicles, ships and buildings.
Current centrifugal fan is when using, mostly only carries out one-way air inlet for the air inlet effect is relatively poor, and the transmission shaft of the blade that has now simultaneously is mostly all fixed mode complicated, and is relatively troublesome when needs are dismantled, does not utilize the change and the washing of transmission shaft, so need a variable two air inlet centrifugal fan to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the variable two air inlet centrifugal fan that proposes, it can carry out two-way air inlet, can also realize the quick dismantlement and the installation of transmission shaft simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a variable two air inlet centrifugal fan, includes the centrifugal fan body, the lower extreme of centrifugal fan body is equipped with the supporting seat, the upper end of centrifugal fan body is equipped with the air outlet, this internal fixedly connected with mounting panel of centrifugal fan, be equipped with the biax motor on the mounting panel, be equipped with the drive mechanism who is used for providing the required power of centrifugal fan body on the output shaft of biax motor, be equipped with circular recess, two on the output shaft of biax motor all be equipped with the transmission shaft in the circular recess, a pair of installation piece of fixedly connected with is a pair of on the output shaft of biax motor, it is a pair of be equipped with the stop gear who is used for spacing transmission shaft on the installation piece, be equipped with the power unit who is used for providing the required power of stop gear on the output shaft of biax motor.
Preferably, the transmission mechanism comprises two pairs of blades fixedly connected to the two transmission shafts, and air inlets are formed in the left end and the right end of the centrifugal fan body.
Preferably, the limiting mechanism comprises two openings arranged on an output shaft of the double-shaft motor, two transmission shafts are respectively provided with a bayonet, the mounting blocks are respectively connected with a transmission rod in a rotating manner through a connecting shaft, the connecting shaft is provided with a torsion spring, and the transmission rod is fixedly connected with a clamping block matched with the bayonet.
Preferably, the power mechanism comprises a chuck fixedly connected to an output shaft of the double-shaft motor, and a limiting disc matched with the chuck is arranged on the outer side of the output shaft of the double-shaft motor.
Preferably, be equipped with the annular mouth on the chuck, be equipped with the internal thread in the annular mouth, be equipped with the snap ring on the spacing dish, be equipped with the external screw thread with internal thread matched with on the snap ring.
Preferably, the diameter of the opening is larger than the width of the clamping block, the limiting disc is provided with a conical opening, and the chuck is provided with a limiting pin for preventing the limiting disc from loosening.
Compared with the prior art, the utility model, its beneficial effect does:
1. through setting up stop gear and power unit, realize when stirring spacing dish, spacing dish moves left and makes conical opening promote the transfer line and rotate, promotes in the fixture block card advances the opening, then enters into the bayonet socket, realizes fixing to the transmission shaft.
2. Through setting up drive mechanism, realize when the biax motor rotates, two sets of blades rotate, realize two-way air inlet for the intake is more, avoids the one-way air inlet to cause the not enough condition of intake.
Drawings
Fig. 1 is a schematic view of a variable double-inlet centrifugal fan according to the present invention;
fig. 2 is a schematic side view of a variable double-intake centrifugal fan according to the present invention;
fig. 3 is a schematic front view of a limiting mechanism of a variable double-inlet centrifugal fan according to the present invention;
fig. 4 is an enlarged schematic view of a structure at a position a of the variable double-inlet centrifugal fan provided by the utility model.
In the figure: the centrifugal fan comprises a centrifugal fan body 1, a supporting seat 2, an air outlet 3, a mounting plate 4, a double-shaft motor 5, a mounting block 6, a circular groove 7, a transmission shaft 8, blades 9, an air inlet 10, an opening 11, a bayonet 12, a transmission rod 13, a clamping block 14, a clamping disc 15, a limiting disc 16, a conical opening 17 and a limiting pin 18.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1-4, a variable double-air intake centrifugal fan comprises a centrifugal fan body 1, a support seat 2 is arranged at the lower end of the centrifugal fan body 1, an air outlet 3 is arranged at the upper end of the centrifugal fan body 1, a mounting plate 4 is fixedly connected in the centrifugal fan body 1, a double-shaft motor 5 is arranged on the mounting plate 4, a transmission mechanism for providing power required by the centrifugal fan body 1 is arranged on an output shaft of the double-shaft motor 5, the transmission mechanism comprises two pairs of blades 9 fixedly connected to two transmission shafts 8, and air inlets 10 are arranged at the left end and the right end of the centrifugal fan body 1.
The output shaft of the double-shaft motor 5 is provided with a circular groove 7, transmission shafts 8 are arranged in the two circular grooves 7, the output shaft of the double-shaft motor 5 is fixedly connected with a pair of mounting blocks 6, a limiting mechanism for limiting the transmission shafts 8 is arranged on the pair of mounting blocks 6, the limiting mechanism comprises two openings 11 arranged on the output shaft of the double-shaft motor 5, the diameter of each opening 11 is larger than the width of each clamping block 14, a conical opening 17 is arranged on each limiting disc 16, a limiting pin 18 for preventing the limiting disc 16 from loosening is arranged on each clamping disc 15, each clamping opening 12 is arranged on each transmission shaft 8, each mounting block 6 is rotatably connected with each transmission rod 13 through each connecting shaft, each connecting shaft is provided with a torsion spring, each clamping block 14 matched with the corresponding clamping opening 12 is fixedly connected onto each transmission rod 13, and when the limiting discs 16 are shifted, the conical openings 17 are driven to rotate by the limiting discs 16 due to leftward movement of the limiting discs 16 through the openings 11, the limiting discs 16, the clamping blocks 14 and the like, the clamping block 14 is pushed to be clamped into the opening 11 and then into the clamping opening 12, and the transmission shaft 8 is fixed.
Be equipped with the power unit that is used for providing stop gear needs power on double-shaft motor 5's the output shaft, power unit includes fixed connection at the epaxial chuck 15 of double-shaft motor 5 output, be equipped with the annular mouth on chuck 15, be equipped with the internal thread in the annular mouth, be equipped with the snap ring on the spacing dish 16, be equipped with the external screw thread with internal thread matched with on the snap ring, the outside of double-shaft motor 5's output shaft is equipped with the spacing dish 16 with chuck 15 matched with, through setting up double-shaft motor 5, the transmission shaft 8, blade 9 etc., when realizing rotating at double-shaft motor 5, two sets of blades 9 rotate, realize two-way air inlet, make the intake more, avoid one-way air inlet to cause the not enough condition of intake.
When the utility model is used, firstly, the double-shaft motor 5 is opened to rotate the left and right output shafts of the double-shaft motor 5 to drive the blades 9 at the two ends to rotate, so that the centrifugal fan body 1 works, when it is desired to install the drive shaft 8, the drive shaft 8 is first inserted into the circular groove 7, with the two drive levers 13 in a position out of the opening 11, then the limiting disc 16 is pulled, the limiting disc 16 moves leftwards, so that the conical opening 17 pushes the transmission rod 13 to rotate, so that the torsion spring obtains elasticity, the movement of the transmission rod 13 will push the latch 14 to be latched into the opening 11, then enters the bayonet 12 to fix the transmission shaft 8, then rotates the limiting disc 16, the external thread of the limiting disc 16 is clamped into the internal thread of the chuck 15, the chuck 15 and the limiting disc 16 are fixed, the transmission rod 13 is prevented from resetting, then the limiting pin 18 is rotated, and looseness between the chuck 15 and the limiting disc 16 is avoided.
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. A variable double-air-inlet centrifugal fan comprises a centrifugal fan body (1) and is characterized in that a supporting seat (2) is arranged at the lower end of the centrifugal fan body (1), an air outlet (3) is formed in the upper end of the centrifugal fan body (1), a mounting plate (4) is fixedly connected in the centrifugal fan body (1), a double-shaft motor (5) is arranged on the mounting plate (4), a transmission mechanism used for providing required power for the centrifugal fan body (1) is arranged on an output shaft of the double-shaft motor (5), a circular groove (7) is formed in an output shaft of the double-shaft motor (5), transmission shafts (8) are arranged in the two circular grooves (7), a pair of mounting blocks (6) is fixedly connected on the output shaft of the double-shaft motor (5), and a limiting mechanism used for limiting the transmission shafts (8) is arranged on the pair of mounting blocks (6), and a power mechanism for providing power required by the limiting mechanism is arranged on an output shaft of the double-shaft motor (5).
2. The variable double-air-inlet centrifugal fan as claimed in claim 1, wherein the transmission mechanism comprises two pairs of blades (9) fixedly connected to two transmission shafts (8), and air inlets (10) are formed in the left end and the right end of the centrifugal fan body (1).
3. The variable double-air-inlet centrifugal fan as claimed in claim 2, wherein the limiting mechanism comprises two openings (11) arranged on an output shaft of the double-shaft motor (5), two transmission shafts (8) are respectively provided with a bayonet (12), a pair of mounting blocks (6) are respectively rotatably connected with a transmission rod (13) through a connection shaft, the connection shaft is provided with a torsion spring, and the transmission rod (13) is fixedly connected with a clamping block (14) matched with the bayonet (12).
4. The variable double-air-inlet centrifugal fan as claimed in claim 3, wherein the power mechanism comprises a chuck (15) fixedly connected to an output shaft of the double-shaft motor (5), and a limiting disc (16) matched with the chuck (15) is arranged on the outer side of the output shaft of the double-shaft motor (5).
5. The variable double-air-inlet centrifugal fan as claimed in claim 4, wherein an annular opening is formed in the chuck (15), an internal thread is formed in the annular opening, a clamping ring is arranged on the limiting disc (16), and an external thread matched with the internal thread is formed on the clamping ring.
6. The variable double-air-inlet centrifugal fan as claimed in claim 5, wherein the diameter of the opening (11) is larger than the width of the clamping block (14), the limiting disc (16) is provided with a conical opening (17), and the chuck (15) is provided with a limiting pin (18) for preventing the limiting disc (16) from loosening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225461.4U CN215170883U (en) | 2021-01-27 | 2021-01-27 | Variable double-air-inlet centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120225461.4U CN215170883U (en) | 2021-01-27 | 2021-01-27 | Variable double-air-inlet centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215170883U true CN215170883U (en) | 2021-12-14 |
Family
ID=79408060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120225461.4U Active CN215170883U (en) | 2021-01-27 | 2021-01-27 | Variable double-air-inlet centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215170883U (en) |
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2021
- 2021-01-27 CN CN202120225461.4U patent/CN215170883U/en active Active
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