CN210003564U - centrifugal fan inlet adjusting structure with variable rotation direction - Google Patents
centrifugal fan inlet adjusting structure with variable rotation direction Download PDFInfo
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- CN210003564U CN210003564U CN201920753044.XU CN201920753044U CN210003564U CN 210003564 U CN210003564 U CN 210003564U CN 201920753044 U CN201920753044 U CN 201920753044U CN 210003564 U CN210003564 U CN 210003564U
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Abstract
The utility model discloses a variably revolve centrifugal fan import of turning to and adjust structure, including adjusting body, adjust this internal interval and parallel arrangement have a plurality of axis of rotation, be provided with in every axis of rotation and adjust blades, the end that is located of every axis of rotation and is provided with V type crank with side, V type articulate two hypotenuses summit department is provided with left connecting hole and right connecting hole, and all V type cranks are connected with the connecting plate of left connecting hole or right connecting hole connection through and are sent the nature with the of guaranteeing the motion, and wherein axis of rotation is connected with the initiative drive arrangement as the initiative axis of rotation, and all the other axis of rotation are driven axis of rotation.
Description
Technical Field
The utility model relates to a mechanical ventilation equipment technical field, concretely relates to structure is adjusted in centrifugal fan import of kinds of variable turning.
Background
The centrifugal fan is general mechanical equipment for air supply or air draft, it can be used in all trades needing air draft or air supply by . in order not to increase the resistance of pipe network, the flow regulator of the centrifugal fan is installed at the inlet position as well as the flow regulator at the inlet of the centrifugal fan controls the working point of the centrifugal fan by changing the performance curve of the centrifugal fan, wherein, the large centrifugal fan has pre-rotation angles and directions by adjustment for the convenience and reasonableness of the pipeline layout, the height space is fully utilized, the design of 90 degree direction of the centrifugal fan and the impeller is often adopted, at this time, the adjustment of the centrifugal fan has opening problem, in order to ensure the efficiency of the centrifugal fan, we need to ensure that the pre-rotation direction of the medium by adjustment needs to be consistent with the rotation direction of the centrifugal fan, so the rotation direction of adjustment needs to be ensured to be consistent with of the centrifugal fan.
An adjusting (see fig. 1) of the existing centrifugal fan comprises an adjusting body 1 and a one-way crank 2 arranged on the adjusting 0 body 1, wherein a connecting hole 3 on the one-way crank 2 is connected with a long connecting plate 4 through a bolt, and because the adjusting of the traditional centrifugal fan is screwed to the design 1 of the centrifugal fan and only , the problems that 1, the adjusting is screwed to the wrong installation during production and processing, the screwing direction of the centrifugal fan is not , rework is needed, the installation progress is influenced, and the cost is additionally increased are caused, 2, the adjusting is screwed to only , the standardization of the design of the adjusting is influenced, different screwing directions are influenced, but the interchangeability of centrifugal fan parts due to the size brings extra spare part cost to enterprises.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide kinds of changeable centrifugal fan import of turning to adjust structures to the aforesaid is not enough and the defect to prior art to solve above-mentioned problem.
The utility model provides a technical problem can adopt following technical scheme to realize:
centrifugal fan import of variable rotation direction is adjusted structure, including adjusting the body, adjust internal interval and parallel arrangement have a plurality of axis of rotation, be provided with on every 0 axis of rotation and adjust blade, its characterized in that, the th end that is located the same side of every 1 axis of rotation is provided with V type crank, two hypotenuse summits department of V type crank are provided with left connecting hole and right connecting hole, and all V type cranks are connected through and left connecting hole or the connecting plate that the right connecting hole is connected in order to guarantee nature of motion and send, and wherein axis of rotation is connected with initiative drive arrangement as the initiative axis of rotation, and all the other axis of rotation are driven axis of rotation.
In preferred embodiments of the present invention, the adjusting blade is connected to the rotating shaft by a bolt.
In preferred embodiments of the present invention, the active driving device comprises a transmission shaft connected to the active rotation shaft and a driving motor connected to the transmission shaft through a rotation swing arm.
The working principle of the utility model is as follows:
utilize the articulate right connecting hole of V type to pass through the bolt and be connected with the connecting plate, when turning to, drive the initiative axis of rotation through initiative drive arrangement and rotate, the initiative axis of rotation drives all the other driven axis of rotation of connecting on the V type crank and turns to, forms dextrorotation structure, only need utilize left connecting hole to pass through the bolt and be connected with the connecting plate when needs change turn to reach and control the interchange of turning to.
Compared with the prior art, the utility model has the advantages of simple structure, convenient installation, and no need of rework due to the adoption of the V-shaped crank which can rotate to with the centrifugal fan.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a prior art centrifugal fan conditioning .
Fig. 2 is a structural schematic diagram of the inlet adjusting structure of centrifugal fans with variable rotation directions.
Fig. 3 is a schematic diagram of the structure of the inlet of the centrifugal fans with variable rotation directions for adjusting left rotation.
Fig. 4 is a top view of fig. 1.
Fig. 5 is a schematic view of the transmission structure of the centrifugal fan of the present invention.
Fig. 6 is a schematic structural diagram of an inlet adjusting structure of centrifugal fans with variable rotation directions (omitting an active driving device).
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further illustrated in below.
Referring to fig. 2 to 6, an inlet adjusting structure of centrifugal fans with variable rotation directions comprises an adjusting body 100, a plurality of rotating shafts 200 are arranged in the adjusting body 100 at intervals and in parallel, each rotating shaft is provided with an adjusting blade 300, and specifically, the adjusting blade 300 is connected with the rotating shaft 200 through a bolt 10.
The end of each rotation shaft 200 on the same side of is provided with a V-shaped crank 400, the vertex 401 of two oblique edges of the V-shaped crank 400 is provided with a left connecting hole 410 and a right connecting hole 420, all the V-shaped cranks 400 are connected with a connecting plate 500 connected with the left connecting hole 410 or the right connecting hole 420 through to ensure the responsiveness of movement, wherein rotation shaft 200 is connected with a driving device 600 as a driving rotation shaft 210, and the rest rotation shafts 200 are driven rotation shafts 220. specifically, the left connecting hole 410 and the right connecting hole 420 are connected with the connecting plate 500 through bolts 10. the V-shaped cranks 400 are symmetrically arranged at the end of each rotation shaft 200.
The active driving apparatus 600 includes a driving shaft 610 connected to the active rotating shaft 210 and a driving motor 630 connected to the driving shaft 610 through a rotating swing arm 620.
The working principle of the utility model is as follows:
the right connecting hole 410 of the V-shaped crank 400 is connected with the connecting plate 500 through the bolt 10, when the direction of rotation is changed, the driving device 600 drives the driving rotating shaft 210 to rotate, the driving rotating shaft 210 drives the other driven rotating shafts 220 connected to the V-shaped crank 400 to rotate, a right rotating structure is formed, when the direction of rotation needs to be changed, only the left connecting hole 420 needs to be used to be connected with the connecting plate 500 through the bolt 10, and therefore the left and right direction of rotation can be exchanged.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1, centrifugal fan import of variable rotation direction adjusts structure, including adjusting the body, adjust internal interval and parallel arrangement have a plurality of axis of rotation, be provided with on every 0 axis of rotation and adjust blade, its characterized in that, the end that is located side of every 1 axis of rotation is provided with V type crank, two hypotenuses summits department of V type crank is provided with left connecting hole and right connecting hole, and all V type cranks are connected with the connecting plate that left connecting hole or right connecting hole are connected through and are in order to guarantee nature of motion and send the nature, and wherein axis of rotation is connected with initiative drive arrangement as the initiative axis of rotation, and all the other axis of rotation are driven axis of rotation.
2. The variable-turning centrifugal fan inlet adjustment structure of claim 1, wherein the blades are bolted to the rotating shaft.
3. The variable-direction centrifugal fan inlet adjustment structure of claim 1, wherein the active drive device comprises a drive shaft connected with the active rotation shaft and a drive motor connected with the drive shaft through a rotation swing arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920753044.XU CN210003564U (en) | 2019-05-23 | 2019-05-23 | centrifugal fan inlet adjusting structure with variable rotation direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920753044.XU CN210003564U (en) | 2019-05-23 | 2019-05-23 | centrifugal fan inlet adjusting structure with variable rotation direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210003564U true CN210003564U (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920753044.XU Active CN210003564U (en) | 2019-05-23 | 2019-05-23 | centrifugal fan inlet adjusting structure with variable rotation direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210003564U (en) |
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2019
- 2019-05-23 CN CN201920753044.XU patent/CN210003564U/en active Active
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