CN208982117U - Extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor - Google Patents
Extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor Download PDFInfo
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- CN208982117U CN208982117U CN201821548332.3U CN201821548332U CN208982117U CN 208982117 U CN208982117 U CN 208982117U CN 201821548332 U CN201821548332 U CN 201821548332U CN 208982117 U CN208982117 U CN 208982117U
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- displacement sensor
- angular displacement
- butterfly valve
- connecting rod
- shaft connecting
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Abstract
Extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor, the utility model relates to a kind of steam extraction butterfly valve executing agencies, the utility model in order to solve the multiple quick closing valve of steam extraction butterfly valve in the prior art it is difficult to ensure that shaft connecting rod and drive flange verticality and concentricity, the phenomenon that being easy to cause angular displacement sensor to damage happens occasionally, it includes spring box, cross box and oil motor；Cross box includes cabinet, horizontal sliding bar, hollow rotary head, drive flange, shaft connecting rod, drive rod, drive socket, angular displacement sensor and flexible connector；Spring box, cross box and oil motor are sequentially connected with, one end of the intracorporal horizontal sliding bar of case is fixedly connected by connecting plate with the spring in spring box, the other end of horizontal sliding bar passes through with the telescopic end of oil motor hydraulic telescopic rod to be fixedly connected with the connector for stirring pin, stirring on pin with the connector for stirring pin is arranged in struck side on hollow rotary head, and the utility model is used for steam turbine field.
Description
Technical field
The utility model relates to a kind of steam extraction butterfly valve executing agencies, and in particular to flexible connection angular displacement sensor
Extracted steam from turbine butterfly valve executing agency, belongs to steam turbine field.
Background technique
Traditional extraction turbine requires steam extraction butterfly valve to have quick closing valve function at runtime and (realizes valve by oil motor hydraulic coupling
Door is opened, and spring force realizes that valve quick closing valve, quick closing's time need to control within 0.15s).Angular displacement sensor is held with steam extraction butterfly valve
The connection of row mechanism cross box kinematic link, function are to measure the rotational angle of butterfly valve and be converted into current signal to be sent to control
Device controls the aperture of butterfly valve.In previous Steam Turbine, angular displacement sensor is all rigid connection on kinematic link, very
More power plant's feedbacks, angular displacement sensor is often broken during steam extraction butterfly valve quick closing valve after unit runs a period of time,
After replacement, operation a period of time still can be broken.Seriously affect the operational efficiency of unit.It obtains by analysis: steam extraction butterfly
Shaft connecting rod on valve cross box is threadedly coupled with drive flange, and after running a period of time, screw thread is easy to loosen, it is difficult to ensure that
The verticality and concentricity of shaft connecting rod and drive flange, to also influence shaft connecting rod and angular displacement sensor rotational pin company
The concentricity connect.It eventually leads to the impact force as caused by shafting is eccentric during butterfly valve is in quick closing valve and crosses ambassador's angle displacement transducer
Device damage.
Utility model content
The utility model in order to solve in the prior art the multiple quick closing valve of steam extraction butterfly valve it is difficult to ensure that shaft connecting rod and driving method
Blue verticality and concentricity, the phenomenon that being easy to cause angular displacement sensor to damage, happen occasionally, and then need to provide with soft
Property connection angular displacement sensor extracted steam from turbine butterfly valve executing agency.
The utility model in order to solve the above problem and the technical solution adopted is that:
It includes spring box, cross box and oil motor；Cross box includes cabinet, horizontal sliding bar, hollow rotary head, driving method
Orchid, shaft connecting rod, drive rod, drive socket, angular displacement sensor and flexible connector；Spring box, cross box and oil motor are suitable
One end of secondary connection, the intracorporal horizontal sliding bar of case is fixedly connected by connecting plate with the spring in spring box, horizontal sliding bar it is another
One end passes through with the telescopic end of oil motor hydraulic telescopic rod to be fixedly connected with the connector for stirring pin, dialling on hollow rotary head
Moved end is arranged in stirring on pin with the connector for stirring pin, the turning end of hollow rotary head respectively with extracted steam from turbine butterfly valve
It is connected with drive flange, the bottom end of cabinet is arranged in the turning end of hollow rotary head, and the input terminal of shaft connecting rod is mounted on transmission
On flange, the output end of shaft connecting rod is fixedly connected with one end of drive rod, and the connection of shaft link rotatable is inserted into hollow rotation
Head positive stop end covers, and hollow rotary head limit end cap is mounted on the cabinet of hollow rotary head side, and the other end of drive rod is logical
The input terminal for crossing flexible connector and angular displacement sensor connects, and drive socket is arranged close on the connector sleeve of cabinet bottom end,
And drive socket is sleeved on shaft connecting rod output end, drive rod and angular displacement sensor input terminal.
The utility model has the beneficial effects that
1, it is used between drive flange 5 and shaft connecting rod 6 in the utility model and connection type is welded and fixed, during quick closing valve
Shaft connecting rod 6 will not loosen.It can effectively guarantee shaft connecting rod 6 in operational process and 5 concentricity of drive flange and vertical
Degree requires.Guarantee that shaft connecting rod 6 will not loosen.Moreover, increasing drive rod 7, pilot sleeve 8, flexible connector 10.By tight
Gu the bolt at 10 both ends of flexible connector makes kinematic link 7 and flexible connector 10, flexible connector 10 and angular displacement sensor
Remain rigid connection between 9.Since flexible connector 10 is using particulate metal material 51CrMoV4 and the knot of likeness in form spring
Structure makes to remain flexible connection between transmission shaft 7 and angular displacement sensor 9.Increased pilot sleeve 8 can play guiding and guarantor
Protect the effect of flexible connector 10.Such structure had not only interfered with the measurement accuracy of angular displacement sensor, but also can effectively subtract
The impact force of slow butterfly valve shafting bias diagonal displacement sensor 9 in quick closing valve is protected to avoid the damage of angular displacement sensor 9
Card angular displacement sensor 9 carries out the progress of detection work, improves the efficiency and reliability of the operation of butterfly valve executing agency.
Detailed description of the invention
Fig. 1 is a kind of integrally-built main view of the utility model；
Fig. 2 is A-A direction view in Fig. 1；
Fig. 3 is the main view of hollow rotary head 4；
Fig. 4 is the side view of Fig. 3.
Specific embodiment
Specific embodiment 1: illustrating present embodiment in conjunction with Fig. 1-Fig. 4, flexible connection angle is had described in present embodiment
The extracted steam from turbine butterfly valve executing agency of displacement sensor, it includes spring box 1, cross box 2 and oil motor 3；Cross box 2 includes
Cabinet, horizontal sliding bar, hollow rotary head 4, drive flange 5, shaft connecting rod 6, drive rod 7, drive socket 8, angular displacement sensor 9
With flexible connector 10；Spring box 1, cross box 2 and oil motor 3 are sequentially connected with, and one end of the intracorporal horizontal sliding bar of case passes through company
Fishplate bar is fixedly connected with the spring in spring box 1, and the other end of horizontal sliding bar and the telescopic end of 3 hydraulic telescopic rod of oil motor pass through
It is fixedly connected with the connector 11 for stirring pin, the struck side on hollow rotary head 4 is arranged in the connector 11 for stirring pin
Stir on pin, the turning end of hollow rotary head 4 is connect with extracted steam from turbine butterfly valve and drive flange 5 respectively, hollow rotary head 4
Turning end the bottom end of cabinet is set, the input terminal of shaft connecting rod 6 is mounted on drive flange 5, the output end of shaft connecting rod 6
It is fixedly connected with one end of drive rod 7, the rotation connection of shaft connecting rod 6 is inserted into hollow rotary head positive stop end and covers, hollow rotation
Head limit end cap is mounted on the cabinet of hollow 4 side of rotary head, and the other end of drive rod 7 passes through flexible connector 10 and angle position
The input terminal of displacement sensor 9 connects, and drive socket 8 is arranged close on the connector sleeve of cabinet bottom end, and drive socket 8 is sleeved on
On 9 input terminal of 6 output end of shaft connecting rod, drive rod 7 and angular displacement sensor.
The material 51CrMoV4 that flexible connector 10 uses in present embodiment, flexible connector 10 are circular cylinder body, circle
The both ends of shape cylinder respectively correspond bar shaped gap there are two processing, are machined with spiral-shaped orifices, flexible connector 10 on circular cylinder body
The impact force of butterfly valve diagonal displacement sensor in quick closing valve can effectively be slowed down, improve equipment reliability of operation.
Specific embodiment 2: illustrating present embodiment in conjunction with Fig. 1-Fig. 4, flexible connection angle is had described in present embodiment
The extracted steam from turbine butterfly valve executing agency of displacement sensor, hollow rotary head 4 include cannulated sleeve and two swinging plates, and two are dialled
Movable plate side by side parallel is mounted on cannulated sleeve, and two swinging plate corresponding positions are machined with strip through-hole, the item of each swinging plate
Shape through-hole, which is sleeved on, to be had on the side for stirring pin of connector 11 for stirring pin, other methods and one phase of specific embodiment
Together.
Specific embodiment 3: illustrating present embodiment in conjunction with Fig. 1-Fig. 4, flexible connection angle is had described in present embodiment
The extracted steam from turbine butterfly valve executing agency of displacement sensor, there are four bar shaped is recessed along uniformly distributed processing is carried out for the inner sidewall of cannulated sleeve
Slot, and each strip groove is arranged along cannulated sleeve axial direction.Other methods are identical with embodiment two.
Specific embodiment 4: illustrating present embodiment in conjunction with Fig. 1-Fig. 2, flexible connection angle is had described in present embodiment
The extracted steam from turbine butterfly valve executing agency of displacement sensor, input terminal and the drive flange 5 of shaft connecting rod 6 are welded and fixed.It is other
Method is same as the specific embodiment one.
Specific embodiment 5: illustrating present embodiment in conjunction with Fig. 1-Fig. 2, flexible connection angle is had described in present embodiment
The extracted steam from turbine butterfly valve executing agency of displacement sensor, drive flange 5 are mounted on one end of cannulated sleeve by screw.Its
Its method is identical as specific embodiment three or four.
Specific embodiment 6: illustrating present embodiment in conjunction with Fig. 1-Fig. 2, flexible connection angle is had described in present embodiment
The extracted steam from turbine butterfly valve executing agency of displacement sensor, 6 output end of shaft connecting rod are machined with flat, one end of drive rod 7
It is machined with groove corresponding with 6 flat of shaft connecting rod, the flat of shaft connecting rod 6 is inserted into the groove of drive rod 7, and is turned
The flat of axis connecting rod 6 and the groove of drive rod 7 are interference fitted.Other methods are same as the specific embodiment one.
Claims (6)
1. the extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor, it is characterised in that: it includes spring
Case (1), cross box (2) and oil motor (3)；Cross box (2) includes cabinet, horizontal sliding bar, hollow rotary head (4), drive flange
(5), shaft connecting rod (6), drive rod (7), drive socket (8), angular displacement sensor (9) and flexible connector (10)；Spring box
(1), cross box (2) and oil motor (3) are sequentially connected with, and one end of the intracorporal horizontal sliding bar of case passes through connecting plate and spring box (1)
Interior spring is fixedly connected, and the other end of horizontal sliding bar and the telescopic end of oil motor (3) hydraulic telescopic rod stir pin by having
Connector (11) be fixedly connected, the struck side on hollow rotary head (4) be arranged in stir pin connector (11) dial
On dynamic pin, the turning end of hollow rotary head (4) is connect with extracted steam from turbine butterfly valve and drive flange (5) respectively, hollow rotary head
(4) bottom end of cabinet is arranged in turning end, and the input terminal of shaft connecting rod (6) is mounted on drive flange (5), shaft connecting rod
(6) output end is fixedly connected with the one end of drive rod (7), and shaft connecting rod (6) rotation connection is inserted into hollow rotary head limit
On end cap, hollow rotary head limit end cap is mounted on the cabinet of hollow rotary head (4) side, and the other end of drive rod (7) is logical
It crosses flexible connector (10) to connect with the input terminal of angular displacement sensor (9), drive socket (8) is arranged close to cabinet bottom end
On connector sleeve, and drive socket (8) is sleeved on shaft connecting rod (6) output end, drive rod (7) and angular displacement sensor (9) input
On end.
2. the extracted steam from turbine butterfly valve executing agency according to claim 1 with flexible connection angular displacement sensor, special
Sign is: hollow rotary head (4) includes cannulated sleeve and two swinging plates, and two swinging plate side by side parallel are mounted on cannulated sleeve
On, and two swinging plate corresponding positions are machined with strip through-hole, the strip through-hole of each swinging plate is sleeved on the company for stirring pin
On the side for stirring pin of fitting (11).
3. the extracted steam from turbine butterfly valve executing agency according to claim 2 with flexible connection angular displacement sensor, special
Sign is: there are four strip grooves along uniformly distributed processing is carried out for the inner sidewall of cannulated sleeve, and each strip groove is along cannulated sleeve
Axial direction setting.
4. the extracted steam from turbine butterfly valve executing agency according to claim 1 with flexible connection angular displacement sensor, special
Sign is: the input terminal of shaft connecting rod (6) is welded and fixed with drive flange (5).
5. the extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor according to claim 3 or 4,
Be characterized in that: drive flange (5) is mounted on one end of cannulated sleeve by screw.
6. the extracted steam from turbine butterfly valve executing agency according to claim 1 with flexible connection angular displacement sensor, special
Sign is: shaft connecting rod (6) output end is machined with flat, and one end of drive rod (7) is machined with and shaft connecting rod (6) flat
The flat of corresponding groove, shaft connecting rod (6) is inserted into the groove of drive rod (7), and the flat of shaft connecting rod (6) with
The groove of drive rod (7) is interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548332.3U CN208982117U (en) | 2018-09-20 | 2018-09-20 | Extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821548332.3U CN208982117U (en) | 2018-09-20 | 2018-09-20 | Extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor |
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| Publication Number | Publication Date |
|---|---|
| CN208982117U true CN208982117U (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821548332.3U Active CN208982117U (en) | 2018-09-20 | 2018-09-20 | Extracted steam from turbine butterfly valve executing agency with flexible connection angular displacement sensor |
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| CN (1) | CN208982117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253265A (en) * | 2020-09-30 | 2021-01-22 | 中核核电运行管理有限公司 | Hydraulic servomotor operation seat spring box |
-
2018
- 2018-09-20 CN CN201821548332.3U patent/CN208982117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253265A (en) * | 2020-09-30 | 2021-01-22 | 中核核电运行管理有限公司 | Hydraulic servomotor operation seat spring box |
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