CN203023090U - Front guide device of centrifugal ventilator - Google Patents
Front guide device of centrifugal ventilator Download PDFInfo
- Publication number
- CN203023090U CN203023090U CN 201220572096 CN201220572096U CN203023090U CN 203023090 U CN203023090 U CN 203023090U CN 201220572096 CN201220572096 CN 201220572096 CN 201220572096 U CN201220572096 U CN 201220572096U CN 203023090 U CN203023090 U CN 203023090U
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- China
- Prior art keywords
- blade
- guide device
- front guide
- traction
- pull rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a front guide device of a centrifugal ventilator. The front guide device of the centrifugal ventilator is characterized in that a handle is connected with a gear rack mechanism, a rack is connected with a traction shaft, the traction shaft is connected with a disc through a key, the disc is connected with a pull rod through a hinge, the other end of the pull rod is connected with the middle of the edge of a blade, when the handle is rotated, the rack can move leftwards or rightwards, and meanwhile the disc is driven to move, motive power is transmitted through the pull rod, the edge of the blade is pulled, the blade is enabled to rotate around a central shaft, and opening or closing of the front guide device is achieved. The front guide device of the centrifugal ventilator has the advantages that the gear rack mechanism is adopted, the front guide device is easy and convenient to operate, time-saving and labor-saving, when the front guide device is completely opened or closed, an included angle exists between the pull rod and the plane where the blade is located, a locking condition does not occur, the whole device is installed on the interior of an air inlet cylinder, influences of external environment are reduced, and the service life is prolonged.
Description
Technical field:
The utility model relates to a kind of centrifugal fan flow regulator, more specifically to the leading apparatus of a kind of centrifugal fan.
Background technique:
In order to satisfy the mine ventilation requirement, Modern Pit all is provided with large-scale ventilation equipment.For guaranteeing the running safety of blower fan, during fan starting, must close the bearing load that leading device alleviates blower fan, after the normal operation of blower fan, can open leading device fully.In addition, when the ventilation system resistance of pipe system hour, leading device also can be used for the adjusting of ventilator operating conditions.The controlling mechanism of common leading apparatus is positioned at outside the air intake cylinder, applies the open and close that moment is come adjusting vane on the central shaft of each blade by linkage mechanism.Because the length of connecting rod that drives blade rotation is shorter, the factors such as the more and manufacturing of the blade of leading device, alignment error, existing leading device is regulated and is wasted time and energy, inconvenience.
In addition, affected by environment because controlling mechanism is arranged in the air intake cylinder outside, the corrosion that component often can occur damages, and affects normal regulating or the startup of ventilator.
The model utility content:
The purpose of this utility model is exactly the deficiency for prior art, proposes a kind of novel leading apparatus.It is inner that this device is arranged in the air intake cylinder with propeller regulating mechanism, pulls blade edge to make each blade rotation by connecting rod, the convenient and strength-saving air quantity regulatory function that realizes.
The technological scheme that solution the utility model technical problem adopts is: one handle is connected a pinion and rack, and tooth bar is fixed on axis of traction, and disk is connected and fixed on axis of traction through key.Handle with sleeve drives a disk transverse shifting through rack-driving, and disk and a minor axis are by chain connection, and the other end of minor axis is through the middle part of chain connection in blade edge; Drive the minor axis motion when disk moves, thereby the band moving vane rotates around its central shaft.The regulating and controlling arrangement of mechanism is inner at the air intake cylinder, and leading device blade can be fixed in two air intake cylinder junctions.
Good effect of the present utility model is, adopts the gear rack transmission to make it rotation through chain connection traction blade edge the air intake cylinder is inner, makes the pulling force of pull bar act on blade edge, thereby makes the adjustment operation walk away safety laborsaving.Because thereby this device is arranged on the inner impact that has reduced external environment condition of air duct, extended working life simultaneously.
Description of drawings:
Fig. 1 is the perspective view of the utility model device; Fig. 2 is the front elevation of the utility model device; Fig. 3 is the A-A cross section view of Fig. 2.
1. blades in figure, 2. pull bar, 3. disk, 4. support, 5. axis of traction, 6. tooth bar, 7. gear, 8. pedestal, 9. air intake cylinder, 10. dial, 11. handles, 12. coupling shafts
Embodiment:
As shown in Figure 1, when opening leading device blade, rotate counterclockwise handle (11), gear (7) rotates thereupon simultaneously, band carry-over bar (6) is moved to the left, thereby drive axis of traction (5) to left movement, disk (3) is synchronized with the movement with axis of traction (5) above key is connected and fixed on axis of traction (5).Axis of traction (5) is connected for the hole axle with coupling shaft (12), and coupling shaft (12) opposite side is fixed in support (4), and coupling shaft (12) plays the effect of fixed pedestal (8) simultaneously.Pull bar (2) one ends and disk (3) are by chain connection, and middle part, the edge of an end and blade (1) is by chain connection.The upper end of blade (1) is placed in the groove of flange, and the bottom is placed on pedestal (8).Therefore when being moved to the left, pull bar (2) can produce relative movement when disk (3), thereby the band moving vane rotates around its central shaft, reaches the purpose that blade is opened.The top corresponding scale of dial (10) place has fixed hole can be fixed on the air intake barrel through bearing pin, reaches the purpose of regulating ventilation.When closing leading device blade, handle (11) is clockwise rotated, and band carry-over bar (6) is to right translation, and while disk (3) can be followed axis of traction (5) and be moved right together, make blade (1) back rotate thereby drive pull bar (2), leading device cuts out.Due to blade open fully or closed position on, there is an angle in pull bar (2) with blade (1) plane, place, so stuck situation can not occur at standard-sized sheet or when closing leading device blade.
Claims (2)
1. leading apparatus of centrifugal fan, its difference is: handle is connected with pinion and rack, tooth bar is fixed on axis of traction, and disk is connected and fixed on axis of traction through key, the motion of handle with sleeve band carry-over bar, thereby cause the transverse movement of axis of traction and disk, through the pull bar transferring power, pull blade edge that it is rotated around central shaft, when blade is in unlatching fully or closed condition, there are an angle in pull bar and plane, blade place, stuck situation can not occur.
2. the leading apparatus of centrifugal fan according to claim 1, it is characterized in that: the pulling force of pull bar acts on blade edge; The regulating and controlling arrangement of mechanism is inner at the air intake cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572096 CN203023090U (en) | 2012-10-10 | 2012-10-10 | Front guide device of centrifugal ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220572096 CN203023090U (en) | 2012-10-10 | 2012-10-10 | Front guide device of centrifugal ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023090U true CN203023090U (en) | 2013-06-26 |
Family
ID=48647079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220572096 Expired - Fee Related CN203023090U (en) | 2012-10-10 | 2012-10-10 | Front guide device of centrifugal ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023090U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157195A (en) * | 2015-06-24 | 2015-12-16 | 上海理工大学 | Self-feedback air valve device |
| CN114857023A (en) * | 2022-04-26 | 2022-08-05 | 安徽理工大学 | Pressurization anti-reflux type water pump |
-
2012
- 2012-10-10 CN CN 201220572096 patent/CN203023090U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157195A (en) * | 2015-06-24 | 2015-12-16 | 上海理工大学 | Self-feedback air valve device |
| CN105157195B (en) * | 2015-06-24 | 2018-01-26 | 上海理工大学 | Self feed back wind valve device |
| CN114857023A (en) * | 2022-04-26 | 2022-08-05 | 安徽理工大学 | Pressurization anti-reflux type water pump |
| CN114857023B (en) * | 2022-04-26 | 2023-09-08 | 安徽理工大学 | Pressurized anti-countercurrent water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131010 |