CN109386322A - A kind of automatic barring gear and control method - Google Patents
A kind of automatic barring gear and control method Download PDFInfo
- Publication number
- CN109386322A CN109386322A CN201811196313.3A CN201811196313A CN109386322A CN 109386322 A CN109386322 A CN 109386322A CN 201811196313 A CN201811196313 A CN 201811196313A CN 109386322 A CN109386322 A CN 109386322A
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- China
- Prior art keywords
- jiggering
- gear
- investment
- driving motor
- carrier wheel
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/34—Turning or inching gear
- F01D25/36—Turning or inching gear using electric motors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of automatic barring gears, including jiggering driving motor, with the worm gear mechanism for being connected with jiggering driving motor, lead screw is arranged on worm gear mechanism, the carrier wheel for being meshed with jiggering gear is provided on lead screw, jiggering gear is connected with steam turbine, further includes putting into device, and the controller for controlling jiggering driving motor and jiggering investment device for withstanding the jiggering of carrier wheel.The automatic barring gear can not only reduce labor intensity by the automatic control to jiggering driving motor and jiggering investment device, time saving and energy saving, additionally it is possible to fault and danger caused by execute-in-place be avoided, to effectively improve the person and equipment safety.The invention also discloses a kind of auto-barring control methods.
Description
Technical field
The present invention relates to steam turbine technology field, in particular to a kind of automatic barring gear and control method.
Background technique
Barring gear is an important component of steam turbine, and electric barring is a kind of most common barring gear, motor
It drives steam turbine to slowly run by series of gears device, rotor thermally equivalent is made by barring gear before steam turbine starting,
Accelerate steam turbine warming-up process；High-temperature rotor uniform decrease in temperature is made by barring gear after halt turbines, prevents rotor because cold and hot
Uneven and generation thermal flexure.
Jiggering investment device is the main component of electric barring equipment, general logical in traditional electric barring investment device
Artificial Manual press contact is crossed, contact is withstood to the carrier wheel being set on worm screw, the case where carrier wheel can not rotate
Under, it is mobile to jiggering gear by the lead screw on worm screw, it is engaged with jiggering gear, to realize the investment of jiggering.But pass through
Not only large labor intensity is operated manually, it is time-consuming and laborious, and it is easy to happen dangerous and fault, exist to the person and equipment
Biggish security risk is unable to satisfy the demand of modern production.
Therefore, how a kind of automatic barring gear is provided, labor intensity can not only be reduced, it is time saving and energy saving, additionally it is possible to keep away
Exempt from fault and danger caused by execute-in-place, so that effectively improving the person and equipment safety is those skilled in the art's urgent need to resolve
The technical issues of.
Summary of the invention
In view of this, labor intensity can not only be reduced the purpose of the present invention is to provide a kind of automatic barring gear, save
Shi Shengli, additionally it is possible to fault and danger caused by execute-in-place are avoided, to effectively improve the person and equipment safety.
Another object of the present invention, which also resides in, provides a kind of auto-barring control method.
To achieve the above object, the invention provides the following technical scheme:
A kind of automatic barring gear, including jiggering driving motor, and the worm gear for being connected with the jiggering driving motor
Worm mechanism is arranged with lead screw on the worm gear mechanism, is provided on the lead screw for being meshed with jiggering gear
Carrier wheel, and the jiggering gear is connected with steam turbine, further includes putting into device for withstanding the jiggering of the carrier wheel,
And the controller for controlling the jiggering driving motor and jiggering investment device.
Preferably, the worm gear mechanism includes:
Worm screw for being connected with the jiggering driving motor；
Worm gear for being meshed with the worm screw, and the worm gear is set on worm gear pole；
The lead screw is set on the worm gear pole, and the carrier wheel is set on the lead screw.
Preferably, the jiggering investment device includes:
Jiggering puts into shell, and is set to the jiggering investment chamber of the jiggering investment enclosure interior；
The slide valve and use that the axial movement of chamber can be put into along the jiggering are additionally provided in the jiggering investment chamber
In the contact for withstanding the carrier wheel；
The pipeline road of lubricating oil is provided for putting into chamber for the jiggering, jiggering throwing is provided on the pipeline road
Enter solenoid valve, and jiggering investment solenoid valve is electrically connected with the controller.
Preferably, further include the handle being set on the jiggering investment device, and be provided on the handle for pushing away
Move the push rod of the slide valve.
Preferably, the flank of tooth of the carrier wheel and the jiggering gear is arc-shaped.
Preferably, further include frequency converter for controlling the jiggering driving motor.
Preferably, further include handwheel for being connected with the worm screw.
A kind of auto-barring control method, applied to the automatic barring gear as described in above-mentioned any one, including it is following
Step:
1) revolving speed of steam turbine is detected；
2) it after the revolving speed for detecting the steam turbine is zero speed, controls jiggering investment solenoid valve (56) and opens, profit
Lubricating oil enters in jiggering investment chamber (52)；
3) it whether normal detects the lubricating oil, after the lubricating oil is normal, controls the jiggering driving motor (1)
Output frequency is run with the first output frequency, completes jiggering investment；
4) detect whether the automatic barring gear has put into, after the detection automatic barring gear has been put into, control
The output frequency of the jiggering driving motor (1) is run with the second output frequency, starts normal jiggering process.
Preferably, the zero speed is the revolving speed lower than 1rpm.
Preferably, first output frequency is 5HZ-8HZ, and second output frequency is 45HZ-55HZ.
As can be seen from the above technical solutions, automatic barring gear disclosed in this invention, including jiggering driving motor, and
Worm gear mechanism for being connected with jiggering driving motor is arranged with lead screw on worm gear mechanism, is arranged on lead screw useful
In the carrier wheel being meshed with jiggering gear, jiggering gear is connected with steam turbine, further includes the disk for withstanding carrier wheel
Vehicle puts into device, and the controller for controlling jiggering driving motor and jiggering investment device.Controller detects steam turbine
Revolving speed, when controller detects that the revolving speed of steam turbine is zero speed, control jiggering driving motor drives worm gear mechanism to turn
It is dynamic, while controlling jiggering investment device and withstanding carrier wheel, after jiggering investment device withstands carrier wheel, carrier wheel is in silk
It is mobile towards jiggering gear under the action of thick stick, and engaged with jiggering gear, it is realized after carrier wheel is engaged with jiggering gear
The investment of jiggering.The automatic barring gear, can not only by the automatic control to jiggering driving motor and jiggering investment device
Labor intensity is reduced, it is time saving and energy saving, additionally it is possible to the fault and danger of execute-in-place to be avoided, to effectively improve the person and equipment peace
Entirely.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below to embodiment or existing
Attached drawing needed in technical description is briefly described, it is clear that, the accompanying drawings in the following description is only this hair
Bright embodiment for those of ordinary skill in the art without creative efforts, can also be according to mentioning
The attached drawing of confession obtains other attached drawings.
Fig. 1 is the structural schematic diagram of automatic barring gear disclosed in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram that jiggering disclosed in the embodiment of the present invention puts into device.
Wherein, the names of the parts are as follows:
1- jiggering driving motor, 2- worm gear mechanism, 21- worm screw, 22- worm gear, 23- worm gear pole, 24- handwheel, 3- are moved
Moving gear, 4- jiggering gear, 5- jiggering put into device, and 51- jiggering puts into shell, and 52- jiggering puts into chamber, 53- slide valve, 54-
Contact, 55- pipeline road, 56- jiggering put into solenoid valve, 57- handle, 58- push rod.
Specific embodiment
In view of this, core of the invention is to provide a kind of automatic barring gear, labor intensity can not only be reduced, is saved
Shi Shengli, additionally it is possible to fault and danger caused by execute-in-place are avoided, to effectively improve the person and equipment safety.
Another core of the invention, which also resides in, provides a kind of auto-barring control method.
In order to enable those skilled in the art to better understand the solution of the present invention, connection with figures and specific embodiment below
The present invention is described in further detail.
Automatic barring gear disclosed in the embodiment of the present invention, including jiggering driving motor 1, and for driving electricity with jiggering
The connected worm gear mechanism 2 of machine 1 is arranged with lead screw on worm gear mechanism 2, be provided on lead screw for jiggering gear 4
The carrier wheel 3 being meshed, jiggering gear 4 are connected with steam turbine, further include putting into device for withstanding the jiggering of carrier wheel 3
5, and the controller for controlling jiggering driving motor 1 and jiggering investment device 5.
Controller detects the revolving speed of steam turbine, when controller detects that the revolving speed of steam turbine is zero speed, controls jiggering
Driving motor 1 drives worm gear mechanism 2 to rotate, while controlling jiggering investment device 5 and withstanding carrier wheel 3, when jiggering is put into
After device 5 withstands carrier wheel 3, carrier wheel 3 is mobile towards jiggering gear 4 under the action of lead screw, and nibbles with jiggering gear 4
It closes, the investment of jiggering is realized after carrier wheel 3 is engaged with jiggering gear 4.The automatic barring gear is by driving jiggering
The automatic control of motor 1 and jiggering investment device 5, can not only reduce labor intensity, time saving and energy saving, additionally it is possible to avoid live behaviour
Fault and danger caused by work, to effectively improve the person and equipment safety.
It should be noted that controller includes detection module, acquisition module and transmission module.
It should be further noted that worm gear mechanism 2 includes the worm screw for being connected with jiggering driving motor 1
21, the worm gear 22 for being meshed with worm screw 21, and worm gear 22 is set on worm gear pole 23；Lead screw is set on worm gear pole 23,
Carrier wheel 3 is set on lead screw.When jiggering investment, start jiggering driving motor 1, jiggering driving motor 1 drives worm screw 21
Rotation, worm screw 21 drive worm gear 22 to rotate, and worm gear 22 drives worm gear pole 23 to rotate, and lead screw drives movement under the rotation of worm gear pole 23
The direction of gear 3 towards jiggering gear 4 is moved, and is engaged until with jiggering gear 4.
Referring to FIG. 2, it includes jiggering investment shell 51 that jiggering, which puts into device 5, in order to advanced optimize above-described embodiment, and
The jiggering investment chamber 52 being set to inside jiggering investment shell 51；It is additionally provided with and can be thrown along jiggering in jiggering investment chamber 52
Enter the slide valve 53 of the axial movement of chamber 52 and the contact 54 for withstanding carrier wheel 3；It is mentioned for putting into chamber 52 for jiggering
For the pipeline road 55 of lubricating oil, be provided on pipeline road 55 jiggering investment solenoid valve 56, and jiggering investment solenoid valve 56 with
Controller electrical connection.
When jiggering investment, controller controls jiggering investment solenoid valve 56 and opens, and lubricating oil is entered from pipeline road 55
Jiggering is put into chamber 52, and lubricating oil pushes slide valve 53 to be moved along the axial direction of jiggering investment chamber 52, and slide valve 53 pushes touching
First 54 are moved towards the direction of carrier wheel 3, until contact 54 withstands carrier wheel 3, at this point, 1 band of jiggering driving motor
Dynamic worm gear mechanism 2 acts, and under the action of lead screw, carrier wheel 3 is mobile towards the direction of jiggering gear 4, until with disk
Skiving wheel 4 engages, and jiggering puts into process and completes.
Certainly, jiggering investment device 5 can be carried out automatically controlling by controller, can also be controlled manually by manually
System.
It is manually controlled in order to realize, jiggering disclosed in the embodiment of the present invention is put into device, is put into and is filled in jiggering
It sets and is additionally provided with handle 57 on 5, and be provided with the push rod 58 for pushing slide valve 53 on handle 57, so set, working as personnel's hand
When dynamic driving handle 57, pushes push rod 58 to enter jiggering by handle 57 and put into chamber 52, push rod 58 pushes 53 edge of slide valve
Jiggering puts into the axial movement of chamber 52, further contact 54 is pushed to withstand carrier wheel 3.
Since carrier wheel 3 is rapid compared with the process that jiggering gear 4 engages, relatively difficult situation is engaged in gear
Under, the flank of tooth meeting sharp impacts of carrier wheel 3 and jiggering gear 4 cause gear destruction, therefore, in order to avoid 3 He of carrier wheel
The flank of tooth of carrier wheel 3 and jiggering gear 4 in the embodiment of the present invention, preferably is disposed as justifying by the tooth surface damage of jiggering gear 4
Arc, to greatly improve the contact-ratio of gear.
In addition, in automatic barring gear disclosed in the embodiment of the present invention, also being wrapped to further increase gear contact-ratio
The frequency converter for controlling jiggering driving motor 1 is included, adjusts jiggering driving motor 1 by changing the output frequency of frequency converter
Therefore revolving speed in embodiments of the present invention, can be driven during carrier wheel 3 and the engagement of jiggering gear 4 by control jiggering
Dynamic motor 1 is run with low frequency；After carrier wheel 3 and jiggering gear 4 engage, jiggering driving motor 1 can be improved
Output frequency starts normal jiggering.
Jiggering investment disclosed automated manner can be controlled through the foregoing embodiment, can also be by controlling manually
System, when being manually controlled, need to be arranged handwheel 24 on automatic barring gear, handwheel 24 is connected with worm screw 21, when
When personnel rotate handwheel 24 manually, handwheel 24 drives worm gear mechanism 2 to move, so that carrier wheel 3 and jiggering gear 4 be nibbled
It closes, realizes jiggering investment.
It should be noted that controller and frequency converter are all set in jiggering control cabinet.
The embodiment of the invention also discloses a kind of auto-barring control methods, applied to automatic disclosed in above-described embodiment
In barring gear, comprising the following steps: 1) controller detection steam turbine revolving speed, 2) when controller detection steam turbine revolving speed be
After zero speed, control jiggering investment solenoid valve 56 is opened, and lubricating oil enters in jiggering investment chamber 52 from pipeline road 55；3)
Controller detects whether lubricating oil is normal, and after detecting that lubricating oil is normal, the output of Frequency Converter Control jiggering driving motor 1 is frequently
Rate is run with the first output frequency, completes jiggering investment；4) controller continues to test whether automatic barring gear has put into, and works as inspection
After survey automatic barring gear has been put into, the output frequency of Frequency Converter Control jiggering driving motor 1 is run with the second output frequency, this
When start normal jiggering process.By the auto-barring control method, labor intensity can not only be reduced, it is time saving and energy saving, also
It can be avoided fault and danger caused by execute-in-place, to effectively improve the person and equipment safety.
It should be noted that zero speed is the revolving speed lower than 1rpm.
It should be further noted that the first output frequency is preferably arranged to 5HZ-8HZ, the second output frequency is preferably provided with
For 45HZ-55HZ, more preferably, the first output frequency is set as 6HZ, and the second output frequency is set as 50HZ.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of automatic barring gear, including jiggering driving motor (1), and be used to be connected with the jiggering driving motor (1)
Worm gear mechanism (2) is arranged with lead screw on the worm gear mechanism (2), be provided on the lead screw for jiggering tooth
The carrier wheel (3) that wheel (4) is meshed, and the jiggering gear (4) is connected with steam turbine, which is characterized in that it further include being used for
Jiggering investment device (5) of the carrier wheel (3) is withstood, and for controlling the jiggering driving motor (1) and the disk
Vehicle puts into the controller of device (5).
2. automatic barring gear according to claim 1, which is characterized in that the worm gear mechanism (2) includes:
Worm screw (21) for being connected with the jiggering driving motor (1)；
Worm gear (22) for being meshed with the worm screw (21), and the worm gear (22) is set on worm gear pole (23)；
The lead screw is set on the worm gear pole (23), and the carrier wheel (3) is set on the lead screw.
3. automatic barring gear according to claim 1, which is characterized in that the jiggering puts into device (5) and includes:
Jiggering puts into shell (51), and is set to internal jiggering investment chamber (52) of jiggering investment shell (51)；
The slide valve that the axial movement of chamber (52) can be put into along the jiggering is additionally provided in jiggering investment chamber (52)
(53) contact (54) and for withstanding the carrier wheel (3)；
The pipeline road (55) of lubricating oil is provided for putting into chamber (52) for the jiggering, is arranged on the pipeline road (55)
There is jiggering to put into solenoid valve (56), and jiggering investment solenoid valve (56) is electrically connected with the controller.
4. automatic barring gear according to claim 3, which is characterized in that further include being set to the jiggering investment device
(5) handle (57) on, and the push rod (58) for pushing the slide valve (53) is provided on the handle (57).
5. automatic barring gear according to claim 1, which is characterized in that the carrier wheel (3) and the jiggering tooth
It is arc-shaped for taking turns the flank of tooth of (4).
6. automatic barring gear according to claim 1, which is characterized in that further include for controlling the jiggering driving electricity
The frequency converter of machine (1).
7. automatic barring gear according to claim 2, which is characterized in that further include for being connected with the worm screw (21)
Handwheel (24).
8. a kind of auto-barring control method, special applied to the automatic barring gear as described in claim 1-7 any one
Sign is, comprising the following steps:
1) revolving speed of steam turbine is detected；
2) it after the revolving speed for detecting the steam turbine is zero speed, controls jiggering investment solenoid valve (56) and opens, lubricating oil
It enters in jiggering investment chamber (52)；
3) it whether normal detects the lubricating oil, after the lubricating oil is normal, controls the output of the jiggering driving motor (1)
Frequency is run with the first output frequency, completes jiggering investment；
4) detect whether the automatic barring gear has put into, after the detection automatic barring gear has been put into, described in control
The output frequency of jiggering driving motor (1) is run with the second output frequency, starts normal jiggering process.
9. auto-barring control method according to claim 8, which is characterized in that the zero speed is to turn lower than 1rpm
Speed.
10. auto-barring control method according to claim 8, which is characterized in that first output frequency is 5HZ-
8HZ, second output frequency are 45HZ-55HZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196313.3A CN109386322A (en) | 2018-10-15 | 2018-10-15 | A kind of automatic barring gear and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196313.3A CN109386322A (en) | 2018-10-15 | 2018-10-15 | A kind of automatic barring gear and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109386322A true CN109386322A (en) | 2019-02-26 |
Family
ID=65427114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811196313.3A Pending CN109386322A (en) | 2018-10-15 | 2018-10-15 | A kind of automatic barring gear and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109386322A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332025A (en) * | 2019-08-20 | 2019-10-15 | 西安陕鼓动力股份有限公司 | Barring gear |
| CN111927583A (en) * | 2020-08-13 | 2020-11-13 | 杭州中能汽轮动力有限公司 | Automatic-meshing electric barring gear and control method |
| CN113931708A (en) * | 2021-09-29 | 2022-01-14 | 华能山东石岛湾核电有限公司 | Steam turbine barring drive circuit and device |
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| CN2714810Y (en) * | 2003-12-12 | 2005-08-03 | 东方汽轮机厂 | Automatic throw-in equipment for small steam turbine jigger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110332025A (en) * | 2019-08-20 | 2019-10-15 | 西安陕鼓动力股份有限公司 | Barring gear |
| CN111927583A (en) * | 2020-08-13 | 2020-11-13 | 杭州中能汽轮动力有限公司 | Automatic-meshing electric barring gear and control method |
| CN113931708A (en) * | 2021-09-29 | 2022-01-14 | 华能山东石岛湾核电有限公司 | Steam turbine barring drive circuit and device |
| CN113931708B (en) * | 2021-09-29 | 2023-11-21 | 华能山东石岛湾核电有限公司 | Steam turbine jigger driving circuit and device |
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Application publication date: 20190226 |