CN109404592B - Accurate adjustment mechanism of high-pressure high-speed air door - Google Patents
Accurate adjustment mechanism of high-pressure high-speed air door Download PDFInfo
- Publication number
- CN109404592B CN109404592B CN201811542135.5A CN201811542135A CN109404592B CN 109404592 B CN109404592 B CN 109404592B CN 201811542135 A CN201811542135 A CN 201811542135A CN 109404592 B CN109404592 B CN 109404592B
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- small
- fixed
- ring
- large gear
- blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
Abstract
The invention belongs to the technical field of air door adjustment, and particularly relates to a high-pressure high-speed air door accurate adjusting mechanism. The adjusting mechanism comprises a pinion A, a pinion B, a large gear ring, blades, a fixing ring, a transverse connecting rod, a flange plate, a connecting small shaft A and a connecting small shaft B. A large gear ring is sleeved outside the fixed ring, a small gear A and a small gear B are symmetrically fixed on the outer side of the large gear ring along the diameter, the large gear ring and a flange plate are fixed together, the flange plate is positioned on the outer wall of the fixed ring, one end of a transverse connecting rod is a through elliptical hole, the other end of the transverse connecting rod is fixedly connected with the top end of a connecting small shaft B, the connecting small shaft B penetrates through the fixed ring, the lower end of the connecting small shaft B is fixed with the arc-shaped edge of a blade, and the triangular; the connecting small shaft A of the blades is fixed at the circle center of the fixed ring, and the blades form the circular surface of the fixed ring. The invention provides an air door adjusting mechanism capable of operating under a high-pressure and high-speed state, which can realize high-precision adjustment of an air door and can ensure that blades do not vibrate after being positioned.
Description
Technical Field
The invention belongs to the technical field of air door adjustment, and particularly relates to a high-pressure high-speed air door accurate adjusting mechanism.
Background
In the engineering industry, fans with adjustable dampers are often used as ventilation equipment. Traditional air door mechanism uses single blade to adjust usually, and opening and shutting of control air door through rotor blade, can adjust the angle of blade to adjust the size of amount of wind, however this kind of regulative mode causes the amount of wind to change greatly easily, and the impact is big, is difficult to guarantee the regulation precision, and air door operating point drift, auto-lock difficulty.
Another air door adjusting mechanism used by various manufacturers at present is a petal type blade adjusting door, and compared with a single blade adjusting door, the adjusting precision is improved a lot, but the air door needs to be manually positioned by using screws or other parts after being adjusted, so that the adjustment is very troublesome. If the size of the air door needs to be adjusted at any time in the working process of the fan and the air door needs to be manually positioned after being adjusted each time, more time is wasted, and the working efficiency is influenced; on the other hand, on the great fan of power, pressure and wind speed of air door department are all very big, and traditional air door adjustment mechanism hardly guarantees that the air door blade is fixed, leads to the fan vibration, if so for a long time, the air door structure can certainly suffer destruction. On the aeroengine air door adjustment mechanism, when atmospheric pressure is too big, tens blade linkage in the synchronization can go wrong, if still have the friction, can appear the jamming phenomenon, cause the aircraft to be shut down by force in the air.
Disclosure of Invention
The invention provides a high-pressure high-speed air door accurate adjusting mechanism, which solves the problem of accurate and stable control of air quantity of air doors of large-scale induced draft fans, large-scale compressors, steam turbines, blowers and aero-engines.
The technical scheme of the invention is as follows:
the utility model provides a high pressure high speed air door accurate adjustment mechanism, includes pinion A, pinion B, big gear circle, blade, retainer plate, transverse connection pole, ring flange, connects staff A and connects staff B.
A large gear ring is sleeved outside the fixed ring, a small gear A and a small gear B are symmetrically fixed on the outer side of the large gear ring along the diameter, the two small gears are respectively meshed with the large gear ring, and the small gear A and the small gear B are respectively driven by a motor to drive the large gear ring to rotate; the flange plate is positioned on the outer wall of the fixing ring, the flange plate is driven by the large gear ring to rotate, 2N bulges are arranged on the outer side of the flange plate, N is an integer larger than 0, and the bulges are connected with an elliptical hole at one end of the transverse connecting rod; the other end of the transverse connecting rod is fixedly connected with the top end of the small connecting shaft B to drive the small connecting shaft B to rotate; the lower end of the connecting small shaft B penetrates through the fixing ring and is fixed with the arc-shaped edge of the blade, and the triangular end of the blade is fixed with the connecting small shaft A; the connecting small shaft A of 2N blades is fixed at the circle center of the fixed ring, and the 2N blades form the circular surface of the fixed ring.
When the blades are adjusted, the pinions respectively driven by the two motors drive the large gear ring and the flange plate fixed on the large gear ring in the same direction so as to drive the transverse connecting rods, so that the blades connected together by the transverse connecting rods rotate, and the adjustment of the air door is realized. After the adjusting position is fixed, the two small gears are braked reversely to fix the big gear, so that the blades are kept still. When the wind driven generator is used, the specific required wind volume is determined firstly, the blades are adjusted to a proper angle through the adjusting motor, and then the positions of the blades are fixed.
The invention has the beneficial effects that:
the invention provides an air door adjusting mechanism capable of operating under a high-pressure and high-speed state, which can realize high-precision adjustment of an air door and can ensure that blades do not vibrate after being positioned. The high-pressure high-speed air door adjusting mechanism can solve the problem of difficult adjustment of the air door of the fan, particularly, the air door is under the condition of high speed and high pressure, the air door adjusting mechanism with the conventional design adopts a butterfly valve or a manually operated blade type adjusting door, but the air volume change is large and the impact is large due to the adjusting mode, and the fine adjustment is difficult to realize. In order to solve the problem of difficult adjustment of the air door, the problem is solved only by adopting a mode that the pinion hydraulically drives the large gear ring so as to adjust the angle of the blade, and the invention can meet the requirement.
Drawings
FIG. 1 is a front view of the structure of the present invention.
FIG. 2 is a top view of the structure of the present invention.
Fig. 3 is a blade attachment diagram.
In the figure: 1 pinion A; 2 pinion B; 3, blades; 4 large gear ring; 5, fixing a ring; 6, connecting the small shaft A; 7 is connected with the small shaft B; 8 transverse connecting rods; 9 flange plate.
Detailed Description
The present invention will be further illustrated with reference to the following examples.
A high-pressure high-speed air door accurate adjustment mechanism comprises a pinion A1, a pinion B2, a large gear ring 4, blades 3, a fixed ring 5, a transverse connecting rod 8, a flange plate 9, a connecting small shaft A6 and a connecting small shaft B7.
A large gear ring 4 is sleeved outside the fixed ring 5, a small gear A1 and a small gear B2 are symmetrically fixed on the outer side of the large gear ring 4 along the diameter, the two small gears are respectively meshed with the large gear ring 4, and the small gear A1 and the small gear B2 are respectively driven by a motor to drive the large gear ring 4 to rotate; the large gear ring 4 and the flange plate 9 are fixed together, the flange plate 9 is positioned on the outer wall of the fixing ring 5, the large gear ring 4 drives the flange plate 9 to rotate, 2N bulges are arranged on the outer side of the flange plate 9, and the bulges are connected with the elliptical holes of the transverse connecting rods 8; one end of the transverse connecting rod 8 is a through elliptical hole, and the other end of the transverse connecting rod is fixedly connected with the top end of the small connecting shaft B7 to drive the small connecting shaft B7 to rotate; the lower end of the small connecting shaft B7 penetrates through the fixed ring 5, and is fixed with the arc edge of the blade 3, and the triangular end of the blade 3 is fixed with the small connecting shaft A6; the connecting small shafts A6 of the 2N blades 3 are fixed at the center of the fixed ring 5, and the 2N blades 3 form the circular surface of the fixed ring 5;
when the blades 3 are adjusted, the pinions respectively driven by the two motors drive the large gear ring 4 and the flange plate 9 fixed on the large gear ring 4 in the same direction so as to drive the transverse connecting rods 8, so that the blades 3 connected together by the transverse connecting rods 8 rotate, and the adjustment of the air door is realized. After the adjusting position is fixed, the two small gears are braked reversely to fix the big gear, so that the blades are kept still. When the wind driven generator is used, the specific required wind volume is determined firstly, the blades are adjusted to a proper angle through the adjusting motor, and then the positions of the blades are fixed.
Claims (1)
1. The high-pressure high-speed air door accurate adjusting mechanism is characterized by comprising a pinion A (1), a pinion B (2), a large gear ring (4), blades (3), a fixing ring (5), a transverse connecting rod (8), a flange plate (9), a connecting small shaft A (6) and a connecting small shaft B (7);
a large gear ring (4) is sleeved outside the fixed ring (5), a small gear A (1) and a small gear B (2) are symmetrically fixed on the outer side of the large gear ring (4) along the diameter, the two small gears are respectively meshed with the large gear ring (4), and the small gear A (1) and the small gear B (2) are respectively driven by a motor to drive the large gear ring (4) to rotate; the large gear ring (4) and the flange plate (9) are fixed together, the flange plate (9) is positioned on the outer wall of the fixing ring (5), the large gear ring (4) drives the flange plate (9) to rotate, 2N bulges are arranged on the outer side of the flange plate (9), N is an integer larger than 0, and the bulges are connected with an elliptical hole at one end of the transverse connecting rod (8); the other end of the transverse connecting rod (8) is fixedly connected with the top end of the small connecting shaft B (7) to drive the small connecting shaft B (7) to rotate; the small connecting shaft B (7) penetrates through the fixing ring (5), the lower end of the small connecting shaft B is fixed with the arc-shaped edge of the blade (3), and the triangular end of the blade (3) is fixed with the small connecting shaft A (6); the connecting small shaft A (6) of the 2N blades (3) is fixed at the circle center of the fixing ring (5), the 2N blades (3) form the circular surface of the fixing ring (5), and after the adjusting position is fixed, the two small gears brake in the reverse direction to fix the large gear, so that the blades are kept still.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542135.5A CN109404592B (en) | 2018-12-17 | 2018-12-17 | Accurate adjustment mechanism of high-pressure high-speed air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542135.5A CN109404592B (en) | 2018-12-17 | 2018-12-17 | Accurate adjustment mechanism of high-pressure high-speed air door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109404592A CN109404592A (en) | 2019-03-01 |
| CN109404592B true CN109404592B (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811542135.5A Active CN109404592B (en) | 2018-12-17 | 2018-12-17 | Accurate adjustment mechanism of high-pressure high-speed air door |
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| CN (1) | CN109404592B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112086887B (en) * | 2020-09-09 | 2022-04-15 | 贵州电网有限责任公司 | Adjustable ventilation device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2149578A1 (en) * | 1994-05-23 | 1995-11-24 | Hideomi Harada | Turbomachinery with variable angle fluid guiding devices |
| CN201314304Y (en) * | 2008-11-13 | 2009-09-23 | 赵惠东 | Novel blower governing valve |
| CN202381372U (en) * | 2011-12-08 | 2012-08-15 | 沈阳风机厂有限公司 | Circular damper device of centrifugal ventilator |
| CN202756264U (en) * | 2012-06-18 | 2013-02-27 | 安徽华森木业有限公司 | Hydraulic pressure top extending device of timber fiber drying fan ventilation door |
| CN205371049U (en) * | 2016-01-19 | 2016-07-06 | 四川望江风机制造有限公司 | Petal formula air regulation door |
| CN106351883A (en) * | 2016-10-11 | 2017-01-25 | 重庆通用工业(集团)有限责任公司 | Inlet adjusting device for centrifugal drum pressure fan |
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| CN109404592A (en) | 2019-03-01 |
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