CN110081012A - Suction ventilator rotor brake - Google Patents
Suction ventilator rotor brake Download PDFInfo
- Publication number
- CN110081012A CN110081012A CN201910308862.3A CN201910308862A CN110081012A CN 110081012 A CN110081012 A CN 110081012A CN 201910308862 A CN201910308862 A CN 201910308862A CN 110081012 A CN110081012 A CN 110081012A
- Authority
- CN
- China
- Prior art keywords
- arm
- force
- friction plate
- positioning pin
- screw 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of suction ventilator rotor brakes, including main body module and the adjustment module being mounted on main body module, the main body module includes the arm of force, tighten screw rod, arm of force positioning pin and pedestal, the adjustment module includes friction plate positioning pin, screw rod, feed screw nut and friction plate, the arm of force is vertically symmetricly set on the upper end of pedestal respectively, the tightening screw rod is horizontally installed between the top of two arm of forces and extends to the outer side edges of two arm of forces, the friction plate passes through the inner side edge that friction plate positioning pin is symmetricly set on the arm of force respectively, the screw rod vertically passes through friction plate positioning pin and is positioned friction plate by feed screw nut.By the above-mentioned means, the configuration of the present invention is simple is compact, it is dismounted easily, air draught machine rotor can be carried out effectively and quickly to brake, stop can also be carried out to air draught machine rotor, while realizing braking and two kinds of functions of stop, be suitable for various types of suction ventilators.
Description
Technical field
The present invention relates to the field of thermal power generation more particularly to a kind of suction ventilator rotor brakes.
Background technique
Suction ventilator is one of important equipment of coal-fired station, and the effect of suction ventilator is the cigarette for generating boiler combustion
Gas discharge, is discharged into atmosphere by chimney, and keeping burner hearth is certain negative pressure.The motor bearings that suction ventilator is equipped with is the axis of rolling
It holds, coefficient of friction is small, when unilateral blower is repaired and does not open the big lid of blower, since (suction ventilator is unilateral for wind-drawing effect in air duct
Under operation, deactivated suction ventilator outlet generates negative pressure and forms pressure difference) under, deactivated fan rotor, which can still rotate, not to stop.However
When repairing suction ventilator, the rotor of suction ventilator cannot rotate, it is necessary to remain stationary state, it is therefore necessary to air draught machine rotor
It is braked and (rotor is become into stationary state from motion state) and operated with stop (rotor is made to remain stationary state).Now
Common brake measure is that plank brake is stopped, and stop operation is chain block locking.
Plank brake is stopped and two to three people are stopped rotor using the rubbing action of lever principle and plank and shaft using plank
Stop, chain block is locked and is pinioned shaft using bandage, then with chain block to bandage apply pulling force rotor held it is motionless.
Since suction ventilator rotor moment of inertia is larger, pull out wind formation pressure difference it is larger when both methods the effect is unsatisfactory, and
There are biggish security risks and complicated for operation in implementation process for both methods.
Summary of the invention
It is simple and compact for structure the invention mainly solves the technical problem of providing a kind of suction ventilator rotor brake, it tears open
Dress is easy, and effective and quickly braking can be carried out to air draught machine rotor, stop can also be carried out to air draught machine rotor, while real
Now braking and two kinds of functions of stop, are suitable for various types of suction ventilators.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: provide a kind of air draught machine rotor system
Dynamic device, including main body module and the adjustment module being mounted on main body module, the main body module includes the arm of force, tightening
Screw rod, arm of force positioning pin and pedestal, the adjustment module include friction plate positioning pin, screw rod, feed screw nut and friction plate, institute
The arm of force stated vertically is symmetricly set on the upper end of pedestal respectively, the tightening screw rod be horizontally installed on two arm of forces top it
Between and extend to the outer side edges of two arm of forces, the friction plate passes through friction plate positioning pin respectively and is symmetricly set on the interior of the arm of force
Side, the screw rod vertically pass through friction plate positioning pin and are positioned friction plate by feed screw nut.
In a preferred embodiment of the present invention, the arm of force is provided with positioning pin installation on the position of inner side edge
Hole, the friction plate positioning pin are horizontally installed in positioning pin mounting hole.
In a preferred embodiment of the present invention, the arm of force is mounted on the base by arm of force positioning pin, described
The arm of force can be swung around arm of force positioning pin.
In a preferred embodiment of the present invention, the main body module further includes tightening nut, the tightening nut
It is separately positioned on the both ends of tightening screw rod and is located at the outer side edges of the arm of force.
In a preferred embodiment of the present invention, the friction plate uses arcuate structure.
The beneficial effects of the present invention are: suction ventilator rotor brake of the invention, simple and compact for structure, it is dismounted easily,
Air draught machine rotor can be carried out effectively and quickly braking, stop can also be carried out to air draught machine rotor, while realizing braking
With two kinds of functions of stop, it is suitable for various types of suction ventilators.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of a preferred embodiment of suction ventilator rotor brake of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is that Fig. 1 installs and uses structural schematic diagram；
The label in accompanying drawing is: 1, main body module, 2, adjustment module, 3, suction ventilator, 4, motor, 5, blower fan main shaft, 11, the arm of force,
12, screw rod, 13, pedestal, 14, positioning pin mounting hole, 15, arm of force positioning pin, 16, tightening nut, 17, circular hole, 21, friction are tightened
Piece positioning pin, 22, screw rod, 23, feed screw nut, 24, friction plate.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
As depicted in figs. 1 and 2, the embodiment of the present invention includes:
A kind of suction ventilator rotor brake, it is described including main body module 1 and the adjustment module being mounted on main body module 12
Main body module 1 include the arm of force 11, tightening screw rod 12 and pedestal 13, the adjustment module 2 includes friction plate positioning pin 21, silk
Bar 22, feed screw nut 23 and friction plate 24, the arm of force 11 are vertically symmetricly set on the upper end of pedestal 13, the receipts respectively
Tight screw rod 12 is horizontally installed between the top of two arm of forces 11 and extends to the outer side edges of two arm of forces 11, the friction plate
24 are symmetricly set on the inner side edge of the arm of force 11 by friction plate positioning pin 21 respectively, and the screw rod 22 is vertically fixed across friction plate
Position pin 21 is simultaneously positioned friction plate 24 by feed screw nut 23.
Among the above, the arm of force 11 is provided with positioning pin mounting hole 14, the friction on the position of inner side edge
Piece positioning pin 21 is horizontally installed in positioning pin mounting hole 14.Positioning pin mounting hole 14 uses kidney ellipsoid structure, can be according to need
Adjust friction plate 24 uses height.Wherein, the arm of force 11 is mounted on pedestal 13 by arm of force positioning pin 15, described
The arm of force 11 can be swung around arm of force positioning pin 15.
Further, the main body module 1 further includes tightening nut 16, and the tightening nut 16 is separately positioned on receipts
The both ends of tight screw rod 12 and the outer side edges for being located at the arm of force 11.
Pedestal 13: being welded on the platform of suction ventilator by the installation and connection of device first, then installs the friction of two sides
Piece 24: the friction plate 24 of two sides is mounted on the arm of force 11 by friction plate positioning pin 21, and screw rod 22 is positioned across friction plate
The circular hole 17 of pin 21, then positioned friction plate 24 by the clamp force of feed screw nut 23.Next the arm of force of installation two sides
11: the arm of force 11 of two sides is mounted on pedestal 13 that (arm of force 11 of two sides can be around arm of force positioning pin 15 by arm of force positioning pin 13
It swings).Finally installation tightens nut 16 and tightens screw rod 12: tightening screw rod 12 being passed through to the hole on 11 top of the arm of force, screws on tightening
Nut 16 makes the arm of force 11 of two sides be tightened to suitable position.
In the present embodiment, the friction plate 24 uses arcuate structure, is used to clamp air draught by two friction plates 24
The blower fan main shaft of machine.
Working principle: left and right dual force arm 11 is pressed from both sides using the tightening force between tightening screw rod 12 and two sides tightening nut 16
Tightly, increase the blower fan main shaft surface clamp force of friction plate 24 and suction ventilator to increase frictional force brakes.
As shown in figure 3, for example carrying out 4 alignment of motor or the motor-driven tune hydraulic cylinder changing of air draught in the unilateral operation of suction ventilator 3
When work, require to carry out air draught machine rotor braking and stop, the method is as follows:
Adjustment before use: come loose feed screw nut 23 first, adjusts 5 center of blower fan main shaft of 24 height of friction plate and suction ventilator 3
It is highly identical.
When carrying out brake operating, two people are needed to operate simultaneously, two people are stood respectively by the arm of force 11 of two sides, a hand push unilateral side
The arm of force 11, another hand, which makes to screw up with a wrench, tightens nut 16, is gradually increased the clamp force of tightening nut 16 until blower fan main shaft 5
Effective brake；When stop, tightening effect can be increased in the installation of tightening 12 two sides of screw rod and cap.
Service personnel is by using torque spanner to pull clutch using 50N M torque as an incrementss, installing additional and not adding
It is as follows to fill air draught machine braking device experimental result:
Conclude that (1) conventional wood panels braking critical force is 750N according to experimental data；(2) target value critical force is 1400N；
(3) it is acted at 5 clutch of blower fan main shaft after installing the brake apparatus newly developed additional with the power of 2000N, blower fan main shaft 5 does not turn yet
It is dynamic, illustrate that critical force is greater than 2000N, realization of goal at this time.
Downtime carries out brake measure to suction ventilator main shaft 5 with plank and brake apparatus braking respectively, and required time is such as
Under:
Conclusion: conventional wood panels braking average time is 14 minutes, and target value is 7.5 minutes, need to use 5 points using after brake apparatus
Clock, realization of goal.
Suction ventilator rotor brake of the invention has the advantages that compared with the prior art
1, simple and compact for structure, compared to old method, the function of braking and stop is combined into one；
2, clamp force is enough, good braking effect, and stability is good, and in contrast, old method is there are clamp force deficiency, and there are security risks
Defect；
3, easy to operate, it is easy to disassemble, compared to old method, it is not improved operation complexity；
4, suitable for the suction ventilator of different model, due to adjusting the design of module, the height of friction plate can with shaft height more
Change.
In conclusion suction ventilator rotor brake of the invention, simple and compact for structure, it is dismounted easily, it can be to air draught
Machine rotor effectively and quickly brake, and can also carry out stop to air draught machine rotor, while realizing braking and two kinds of stop
Function is suitable for various types of suction ventilators.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (5)
1. a kind of suction ventilator rotor brake, which is characterized in that including main body module and the tune being mounted on main body module
Module is saved, the main body module includes the arm of force, tightening screw rod, arm of force positioning pin and pedestal, and the adjustment module includes rubbing
Pad positioning pin, screw rod, feed screw nut and friction plate, the arm of force is vertically symmetricly set on the upper end of pedestal respectively, described
Tightening screw rod be horizontally installed between the top of two arm of forces and extend to the outer side edges of two arm of forces, the friction plate point
The inner side edge of the arm of force is not symmetricly set on by friction plate positioning pin, the screw rod vertically passes through friction plate positioning pin and passes through
Feed screw nut positions friction plate.
2. suction ventilator rotor brake according to claim 1, which is characterized in that the arm of force is close to inner side edge
Positioning pin mounting hole is provided on position, the friction plate positioning pin is horizontally installed in positioning pin mounting hole.
3. suction ventilator rotor brake according to claim 1, which is characterized in that the arm of force is positioned by the arm of force
Pin is mounted on the base, and the arm of force can be swung around arm of force positioning pin.
4. suction ventilator rotor brake according to claim 1, which is characterized in that the main body module further includes receiving
Tight nut, the tightening nut are separately positioned on the both ends of tightening screw rod and are located at the outer side edges of the arm of force.
5. suction ventilator rotor brake according to claim 1, which is characterized in that the friction plate uses arc knot
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308862.3A CN110081012A (en) | 2019-04-17 | 2019-04-17 | Suction ventilator rotor brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308862.3A CN110081012A (en) | 2019-04-17 | 2019-04-17 | Suction ventilator rotor brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110081012A true CN110081012A (en) | 2019-08-02 |
Family
ID=67415305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910308862.3A Pending CN110081012A (en) | 2019-04-17 | 2019-04-17 | Suction ventilator rotor brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110081012A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU668674B3 (en) * | 1995-10-11 | 1996-05-09 | Maxiwash Pty Ltd | Brake apparatus |
| CN2389254Y (en) * | 1999-09-17 | 2000-07-26 | 张家政 | Block brake |
| US20050139435A1 (en) * | 2003-12-29 | 2005-06-30 | Jelley Frederick A. | Gain stabilizing self-energized brake mechanism |
| CN202510401U (en) * | 2012-03-17 | 2012-10-31 | 鞍钢集团矿业公司 | Hand-cranking braking device for rotating shaft of large-scale induced draft fan |
| CN202991953U (en) * | 2012-11-08 | 2013-06-12 | 田园 | Hand pulling self-locking drum brake |
| CN204061261U (en) * | 2014-08-11 | 2014-12-31 | 武汉钢铁(集团)公司 | A kind of induced draught fan braking device |
| CN205278165U (en) * | 2015-11-10 | 2016-06-01 | 嘉善烽火节能设备有限公司 | Take electromagnetic braking ware of forced -air cooling heat dissipation device |
| CN207762003U (en) * | 2018-01-16 | 2018-08-24 | 大唐绥化热电有限公司 | Simple wind turbine brake gear |
| CN207945117U (en) * | 2017-12-28 | 2018-10-09 | 华润电力湖南有限公司 | A kind of wind turbine brake gear |
| CN210013856U (en) * | 2019-04-17 | 2020-02-04 | 江苏常熟发电有限公司 | Brake device for suction fan rotor |
-
2019
- 2019-04-17 CN CN201910308862.3A patent/CN110081012A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU668674B3 (en) * | 1995-10-11 | 1996-05-09 | Maxiwash Pty Ltd | Brake apparatus |
| CN2389254Y (en) * | 1999-09-17 | 2000-07-26 | 张家政 | Block brake |
| US20050139435A1 (en) * | 2003-12-29 | 2005-06-30 | Jelley Frederick A. | Gain stabilizing self-energized brake mechanism |
| CN202510401U (en) * | 2012-03-17 | 2012-10-31 | 鞍钢集团矿业公司 | Hand-cranking braking device for rotating shaft of large-scale induced draft fan |
| CN202991953U (en) * | 2012-11-08 | 2013-06-12 | 田园 | Hand pulling self-locking drum brake |
| CN204061261U (en) * | 2014-08-11 | 2014-12-31 | 武汉钢铁(集团)公司 | A kind of induced draught fan braking device |
| CN205278165U (en) * | 2015-11-10 | 2016-06-01 | 嘉善烽火节能设备有限公司 | Take electromagnetic braking ware of forced -air cooling heat dissipation device |
| CN207945117U (en) * | 2017-12-28 | 2018-10-09 | 华润电力湖南有限公司 | A kind of wind turbine brake gear |
| CN207762003U (en) * | 2018-01-16 | 2018-08-24 | 大唐绥化热电有限公司 | Simple wind turbine brake gear |
| CN210013856U (en) * | 2019-04-17 | 2020-02-04 | 江苏常熟发电有限公司 | Brake device for suction fan rotor |
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