CN206917958U - A kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device - Google Patents
A kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device Download PDFInfo
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- CN206917958U CN206917958U CN201720784368.0U CN201720784368U CN206917958U CN 206917958 U CN206917958 U CN 206917958U CN 201720784368 U CN201720784368 U CN 201720784368U CN 206917958 U CN206917958 U CN 206917958U
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- hydraulic cylinder
- transmission device
- axial flow
- control mechanism
- flow fan
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- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 238000003032 molecular docking Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
It the utility model is related to a kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device, including the integral type integral joint being connected with servo valve afterbody, the integral joint are coaxially connected by bolt and servo valve afterbody；The integral joint is hinged with oscillating bearing, and the oscillating bearing is connected by simultaneously cap with adjusting one end of connecting rod, and the other end of the regulation connecting rod is connected with drive mechanism connecting lever by simultaneously cap with oscillating bearing.The connected mode of the utility model dynamic regulating mechanism former to blower fan is improved, the holding screw between former jointing and servo valve, the Impact direction of bearing pin screw and force-bearing types are made to change, avoided in the design of mechanical structure former dynamic regulating mechanism jointing screwing or pin shaken during movable vane regulation come off, wear and rupture the problems such as, reduce the workload of equipment repair and maintenance, improve equipment reliability of operation.
Description
Technical field
The utility model belongs to axial flow blower technical field, is related to servo control mechanism transmission device, and especially a kind of movable vane can
Adjust axial flow blower hydraulic cylinder servo control mechanism transmission device.
Background technology
In the prior art, twin-stage variable moning blade axial flow fan, its movable vane regulative mode are hydraulic pressure movable vane+electronic execution machine
Structure adjustment control, rotation speed of fan 1490r/min, -30 ° -+20 ° of movable vane adjustable range, Driven by Hydraulic Cylinder stroke are 0-80mm, are adjusted
Save blade actuation time about 30-45s.In actual use, there is fan outlet wind in succession during operation in this blower fan
Pressure and blower motor current fluctuation, wind motor leaf can not the anomaly such as normal operating, blower fan checks after stopping transport finds that failure is equal
Drawn for Fan Regulation between fork and servo valve caused by the fracture of joint area connecting bolt, through analyzing judgement, the controlled blade of forced-draft-fan mechanism
Between fork is drawn in servo valve and regulation there is design defect in connected mode, and actuator stem force square almost all is concentrated when movable vane is adjusted
On four M6 screw, and above-mentioned screw, without any retaining measure, wind motor leaf needs frequent operation, spiral shell when unit load changes
Nail by mechanism it is long-term rock, loosening easily occurs in shear action, comes off, ultimately result in controlled blade of forced-draft-fan failure mechanisms, seriously
Influence the safe and stable operation of unit.
Utility model content
A kind of the shortcomings that the purpose of this utility model is to overcome above-mentioned prior art, there is provided axial flow fan with adjustable moving blades liquid
Cylinder pressure servo control mechanism transmission device.
The purpose of this utility model solves by the following technical programs：
This axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device, including the one being connected with servo valve afterbody
Formula integral joint, the integral joint are coaxially connected by bolt and servo valve afterbody；The integral joint is hinged with joint shaft
Hold, the oscillating bearing is connected by simultaneously cap with adjusting one end of connecting rod, and the other end of the regulation connecting rod passes through simultaneously cap and pass
Bearings are connected with drive mechanism connecting lever.
The integral joint includes the fixed plate docked with servo valve afterbody, and the fixed plate is by being fixedly connected with double forks
The connecting joint of structure, the connecting joint are connected with oscillating bearing by oscillating bearing pin bolt.
The fixed plate is docked by bolt with servo valve valve afterbody.
The diameter parallel of the bolt and servo valve.
The bolt is M6 bolts.
The oscillating bearing is M12 spherical plain bearing rod end.
Compared with prior art, the utility model has the advantages that：
The utility model eliminates jointing of the prior art and fork structure is drawn in regulation, is installed in servo valve afterbody whole
Body joint, make in governor motion driving servo valve axial movement, holding screw, the Impact direction of bearing pin screw and stress class
Type is changed into axial tensile force from radial shear power, and the intensity and reliability for making bolted on part are significantly increased；To adjust connecting rod
The oscillating bearing at both ends replaces the function of former jointing, available for connecting rod connecting lever and servo valve during compensation movable vane regulation
The shear stress that centre deviation is brought, shearing abrasion is received very so as to thoroughly avoid former hydraulic regulating device coupling mechanism screw
To the possibility being broken, make the regulation action of hydraulic regulating device coupling mechanism more stable, reliable.
Brief description of the drawings
Fig. 1 is use state figure of the present utility model；
Fig. 2 is the structural representation of integral joint 2 of the present utility model；
Fig. 3 is the utility model oscillating bearing 4 and the regulation assembling structure schematic diagram of connecting rod 3.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
Referring to Fig. 1-3：Axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device of the present utility model, including with
The integral type integral joint 2 of servo valve afterbody connection, the integral joint 2 are coaxially connected by bolt and servo valve afterbody；Institute
State integral joint 2 and be hinged with oscillating bearing 4, the oscillating bearing 4 is connected by simultaneously cap with adjusting one end of connecting rod 3, the tune
The other end for saving connecting rod 3 is connected with drive mechanism connecting lever 8 by simultaneously cap with oscillating bearing 4.
In most preferred embodiment of the present utility model, as shown in Figure 2：Integral joint 2 includes what is docked with servo valve afterbody
Fixed plate 2.1, fixed plate 2.1 are actually a ring flange, and connection of the fixed plate 2.1 by being fixedly connected with double fork structures is closed
Section 2.2, the connecting joint 2.2 is connected with oscillating bearing 4 by oscillating bearing pin bolt 7.Fixed plate 2.1 by bolt with
Servo valve valve afterbody docks.The diameter parallel of bolt and servo valve.
And in most preferred embodiment of the present utility model, bolt is M6 bolts.Oscillating bearing 4 is M12 rod end joint
Bearing.
As shown in Figure 2, integral joint part design processing key sizing specification is as follows：
Adpting flange between integral joint servo valve side and servo valve end cap should have enough mechanical strengths, flange outer diameter,
Pitch-row should be designed according to counterbore pitch-row on servo valve external diameter and thickening type end cap；Integral joint driving side opening span, spiral shell
Hole size should determine according to regulation connecting rod spherical plain bearing rod end specification；The design of integral joint mid link length is considered as driving
Overall length, the adjustable range of air line distance and regulation link assembly between side and servo valve side apparatus, while should be also equipped with enough
Tensile strength.During each component combination installation, the positioning first carried out between jointing and servo valve fastens, blower fan hydraulic oil unit
Hydraulic cylinder and driving side are operated to state consistency (standard-sized sheet is fully closed), by both sides after adjustment regulation length of connecting rod is suitable after playing pressure
Equipment connection fastening, finally carries out check adjustment to hydraulic cylinder travel.
The implementation of the technical scheme, the connected mode of the former dynamic regulating mechanism of blower fan is improved, make former jointing with
The Impact direction and force-bearing types of holding screw, bearing pin screw between servo valve change, and are kept away in the design of mechanical structure
Exempted from former dynamic regulating mechanism jointing screwing or pin shaken during movable vane regulation come off, wear and rupture etc. is asked
Topic, reduces the workload of equipment repair and maintenance, improves equipment reliability of operation.
Claims (6)
- A kind of 1. axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device, it is characterised in that including with servo valve afterbody The integral type integral joint (2) of connection, the integral joint (2) are coaxially connected by bolt and servo valve afterbody；The entirety Joint (2) is hinged with oscillating bearing (4), and the oscillating bearing (4) is connected by simultaneously cap with one end of regulation connecting rod (3), described The other end of regulation connecting rod (3) is connected with drive mechanism connecting lever (8) by simultaneously cap with oscillating bearing (4).
- 2. axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device according to claim 1, it is characterised in that institute The fixed plate (2.1) that integral joint (2) includes docking with servo valve afterbody is stated, the fixed plate (2.1) is by being fixedly connected with The connecting joint (2.2) of double fork structures, the connecting joint (2.2) pass through oscillating bearing pin bolt (7) with oscillating bearing (4) Connection.
- 3. axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device according to claim 2, it is characterised in that institute Fixed plate (2.1) is stated to dock with servo valve valve afterbody by bolt.
- 4. axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device according to claim 3, it is characterised in that institute State the diameter parallel of bolt and servo valve.
- 5. axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device according to claim 3, it is characterised in that institute It is M6 bolts to state bolt.
- 6. axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device according to claim 2, it is characterised in that institute State the spherical plain bearing rod end that oscillating bearing (4) is M12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784368.0U CN206917958U (en) | 2017-06-30 | 2017-06-30 | A kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720784368.0U CN206917958U (en) | 2017-06-30 | 2017-06-30 | A kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917958U true CN206917958U (en) | 2018-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720784368.0U Active CN206917958U (en) | 2017-06-30 | 2017-06-30 | A kind of axial flow fan with adjustable moving blades hydraulic cylinder servo control mechanism transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206917958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483449A (en) * | 2020-11-12 | 2021-03-12 | 中国神华能源股份有限公司国华电力分公司 | Axial fan hydraulic control component with adjustable moving blades |
| CN113153793A (en) * | 2021-03-18 | 2021-07-23 | 华能(广东)能源开发有限公司海门电厂 | Primary air fan and fan hydraulic cylinder fault automatic detection and emergency processing system |
-
2017
- 2017-06-30 CN CN201720784368.0U patent/CN206917958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483449A (en) * | 2020-11-12 | 2021-03-12 | 中国神华能源股份有限公司国华电力分公司 | Axial fan hydraulic control component with adjustable moving blades |
| CN113153793A (en) * | 2021-03-18 | 2021-07-23 | 华能(广东)能源开发有限公司海门电厂 | Primary air fan and fan hydraulic cylinder fault automatic detection and emergency processing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 714206 8th floor, block B, Xi'an Hongxiang building, No. 90, Xingqing Road, Beilin District, Xi'an City, Shaanxi Province Patentee after: Datang Qinling Power Generation Co.,Ltd. Address before: 714206 Luofu Industrial Park, Huayin City, Weinan City, Shaanxi Province Patentee before: HUANENG SHAANXI QINLING POWER GENERATION CO.,LTD. |
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| CP03 | Change of name, title or address |