CN201650383U - Built-in displacement control device of hydraulic servomotor - Google Patents
Built-in displacement control device of hydraulic servomotor Download PDFInfo
- Publication number
- CN201650383U CN201650383U CN2010201633210U CN201020163321U CN201650383U CN 201650383 U CN201650383 U CN 201650383U CN 2010201633210 U CN2010201633210 U CN 2010201633210U CN 201020163321 U CN201020163321 U CN 201020163321U CN 201650383 U CN201650383 U CN 201650383U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- iron core
- oil engine
- control device
- transducer
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a built-in displacement control device of a hydraulic servomotor. A deep hole is arranged on one end face of a piston rod of the hydraulic servomotor, aperture of the deep hole is larger than outer diameter of an iron core rod of a displacement sensor, depth of the deep hole is larger than the largest movement distance of the iron core rod in the piston rod, a stepped hole is arranged at an opening of the deep hole, a positioning magnetic ring arranged inside the stepped hole is fastened on the piston rod by a fastening screw, a converter of the displacement sensor is fixedly connected onto a rear flange in a threaded manner, the iron core rod moving within the positioning magnetic ring generates micro-pulse signals, and the converter converts the micro-pulse signals into electric signals to output. The displacement sensor disposed in the hydraulic servomotor is mounted inside, which is hidden and also favorable for protection of the sensor, while spatial size of the hydraulic servomotor is reduced, and control function is more reliable.
Description
Technical field
The utility model relates to a kind of Turbo-generator Set matching parts, is specifically related to a kind of oil engine displacement control device of regulating the turbine admission valve aperture.
Background technique
Oil engine belongs to the Turbo-generator Set matching parts, and its function is the aperture of control turbine admission valve.The piston rod of oil engine connects the admission valve of steam turbine, the displacement of hydraulic medium piston rod, turbine admission valve is synchronized with the movement with it, the controlling parts of oil engine configuration is a displacement transducer, its main body is fixed on outside one side of oil engine, the parts of displacement transducer---and the location magnet ring is connected with the piston rod of oil engine, with the piston rod synchronous shift, the displacement signal of displacement transducer output feeds back to servo-control system, reaches the purpose of regulating the turbine admission valve aperture.
The displacement transducer of existing oil engine configuration adopts outside form of installing, and the defective of this structure comprises: the length that (1) piston rod stretches out is oversize, causes that rigidity is relatively poor, and then influences the control function of oil engine; (2) the oil engine volume is big, weight is big, makes to install, debug relatively difficulty.
The model utility content
Technical problem to be solved in the utility model is to propose a kind ofly with the inner oil engine displacement control device of installing of displacement transducer, not only hidden but also be beneficial to the protection of displacement transducer, and therefore the bulk of oil engine also reduce, and the control function is more reliable.
In order to solve the problems of the technologies described above, the oil engine built-in type displacement control device that the utility model provides, be provided with a deep hole on an end face of the piston rod of oil engine, its aperture is greater than the external diameter of the iron core rod of displacement transducer, and hole depth is greater than the maximum moving distance of iron core rod in piston rod; The aperture of deep hole is provided with a step hole, is provided with the location magnet ring in the step hole, and is fastened on the piston rod by fastening screw trip bolt; The transducer of displacement transducer is threaded and is fixed on the rear flange; The motion in the magnet ring of location of iron core rod produces the micropulse signal, and transducer becomes electrical signal output with the micropulse signal conversion.
Preferably, in the above-mentioned oil engine built-in type of the utility model displacement control device, magnet ring both sides, location are equipped with guard ring, and are fastened on the piston rod by fastening screw trip bolt.
Preferably, in the above-mentioned oil engine built-in type of the utility model displacement control device, displacement transducer adopts the micropulse linear displacement transducer of magnetostriction principle.
With respect to prior art, the utility model is with the inner installation of displacement transducer, at the i.e. deep hole of the displacement space of an end of piston rod design sensor iron core rod, the step hole of aperture designs fix sensor location magnet ring, the transducer of displacement transducer is fixed on the rear flange of oil engine.The displacement transducer of the utility model oil engine configuration adopts inner form of installing, and is not only hidden but also be beneficial to the protection of sensor, and the bulk of oil engine also reduces, and the control function is more reliable.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Wherein: 1 is deep hole; 2 is piston rod; 3 is cylinder barrel; 4 are the location magnet ring; 5 is fastening screw trip bolt; 6 is rod unshakable in one's determination; 7 is rear flange; 8 is transducer.
Embodiment
Below in conjunction with the drawings and specific embodiments, further set forth the utility model.These embodiments be interpreted as only being used to the utility model is described and be not used in the restriction protection domain of the present utility model.After the content of having read the utility model record, those skilled in the art can make various changes or modifications the utility model, and these equivalences change and modification falls into the utility model claim institute restricted portion equally.
As shown in Figure 1, in the oil engine built-in type displacement control device that the utility model one preferred embodiment provides, design one deep hole 1 on an end face of the piston rod 2 of oil engine, its aperture is greater than the external diameter of the iron core rod 6 of displacement transducer, and hole depth is greater than iron core rod 6 maximum moving distance in piston rod 2; Place, one end face aperture of piston rod 2 design one step hole, each a slice guard ring of installing and locating magnet ring 4 and both sides (among the figure mark), and be fastened on the piston rod 2 with fastening screw trip bolt 5; The transducer 8 of displacement transducer is fixed on the rear flange 7 with the form of being threaded; The motion in the magnet ring 4 of location of the iron core rod 6 of displacement transducer produces the micropulse signal, and transducer 8 becomes electrical signal output with the micropulse signal conversion, and iron core rod 6 and transducer 8 are as a whole.The displacement transducer of present embodiment adopts the micropulse linear displacement transducer of magnetostriction principle.Below in conjunction with description of drawings displacement control principle of the present utility model.
As shown in Figure 1, under surging the driving of power, the piston rod 2 of oil engine produces displacement, the location magnet ring 4 that is fixed on the piston rod 2 produces relative movement with iron core rod 6, and the iron core rod 6 micropulse signal that magnetostriction produces in magnetic field converts micropulse to electrical signal output through transducer 8.The distance of displacement and output electrical signal are corresponding, after accepting the control signal coupling of servo-control system with this feedback signal and former setting of transducer 8 output electrical signal, export the flow of new control signal regulator solution piezodielectric, thereby the displacement of control piston bar 2, the aperture that reaches turbine admission valve satisfies the unit requirement.
Claims (3)
1. an oil engine built-in type displacement control device is characterized in that, is provided with a deep hole on an end face of the piston rod of oil engine, and its aperture is greater than the external diameter of the iron core rod of displacement transducer, and hole depth is greater than the maximum moving distance of iron core rod in piston rod; The aperture of deep hole is provided with a step hole, is provided with the location magnet ring in the step hole, and is fastened on the piston rod by fastening screw trip bolt; The transducer of displacement transducer is threaded and is fixed on the rear flange; The motion in the magnet ring of location of iron core rod produces the micropulse signal, and transducer becomes electrical signal output with the micropulse signal conversion.
2. oil engine built-in type displacement control device according to claim 1 is characterized in that, magnet ring both sides, location are equipped with guard ring, and are fastened on the piston rod by fastening screw trip bolt.
3. oil engine built-in type displacement control device according to claim 1 and 2 is characterized in that, displacement transducer adopts the micropulse linear displacement transducer of magnetostriction principle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201633210U CN201650383U (en) | 2010-04-16 | 2010-04-16 | Built-in displacement control device of hydraulic servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201633210U CN201650383U (en) | 2010-04-16 | 2010-04-16 | Built-in displacement control device of hydraulic servomotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650383U true CN201650383U (en) | 2010-11-24 |
Family
ID=43115618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201633210U Expired - Lifetime CN201650383U (en) | 2010-04-16 | 2010-04-16 | Built-in displacement control device of hydraulic servomotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650383U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513602A (en) * | 2011-11-17 | 2012-06-27 | 缙云县高新机械制造有限公司 | Online monitoring device for drawing bench |
| CN108167262A (en) * | 2017-11-22 | 2018-06-15 | 中国北方发动机研究所(天津) | A kind of hydraulic cylinder structure of use for diesel engine with position feedback |
| CN108204383A (en) * | 2016-12-19 | 2018-06-26 | 青岛福鼎数码科技有限公司 | Stroke measurment signal output type hydraulic cylinder |
-
2010
- 2010-04-16 CN CN2010201633210U patent/CN201650383U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513602A (en) * | 2011-11-17 | 2012-06-27 | 缙云县高新机械制造有限公司 | Online monitoring device for drawing bench |
| CN108204383A (en) * | 2016-12-19 | 2018-06-26 | 青岛福鼎数码科技有限公司 | Stroke measurment signal output type hydraulic cylinder |
| CN108167262A (en) * | 2017-11-22 | 2018-06-15 | 中国北方发动机研究所(天津) | A kind of hydraulic cylinder structure of use for diesel engine with position feedback |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201757028U (en) | Variable-pulp oil cylinder for wind power system | |
| CN201794852U (en) | Built-in displacement feedback oil cylinder | |
| CN201650383U (en) | Built-in displacement control device of hydraulic servomotor | |
| CN203742771U (en) | Turbocharger exhaust gas bypass actuating mechanism | |
| CN105257283A (en) | Rotary mud continuous wave generator | |
| CN201554714U (en) | Built-in linear displacement sensor hydraulic cylinder | |
| CN202661476U (en) | Velocity sensor and traction motor rotor velocity measuring system | |
| CN102780311A (en) | Ball screw linear driver for built-in permanent magnet synchronous motor | |
| CN101956742A (en) | Hydraulic hoist cylinder with stroke detection function | |
| CN201627870U (en) | MR (magneto rheological) damper of built-in displacement sensor | |
| CN208206383U (en) | It is used to double damping structures of compensator or trimmer pressure impact in a kind of pressure transmitter impulse mouth | |
| CN203650378U (en) | Screwdriver blade structural improvement | |
| CN203335522U (en) | Stainless steel minitype cylinder | |
| CN113074150A (en) | All-welded corrugated pipe type pressurizing oil tank adopting non-contact sensor | |
| CN201818586U (en) | Oil cylinder of hydraulic hoist with stroke detection function | |
| CN201636113U (en) | High-integration servo oil cylinder | |
| CN111779883A (en) | Valve control unit | |
| CN101776099A (en) | High integration servo oil cylinder | |
| CN216277801U (en) | Underground pressure regulating device | |
| CN101504019A (en) | Permanent magnet buffering hydraulic cylinder | |
| CN202991694U (en) | Compact type cylinder | |
| CN219087017U (en) | Composite type active suspension super magnetostriction displacement amplifying actuator for high-speed train | |
| CN212988255U (en) | Main valve core displacement measuring device | |
| CN205089846U (en) | High -elastic coupler of rotary drilling rig | |
| CN204083494U (en) | The linkage structure of regulating valve rod and final controlling element push rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINLI MACHINE PLANT, SHANGHAI Free format text: FORMER OWNER: SHANGHAI AEROSPACE HYDRAULIC CONTROL SYSTEM CO., LTD. Effective date: 20130509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201717 QINGPU, SHANGHAI TO: 201112 MINHANG, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130509 Address after: 201112 No. 3392, Ting Lou Road, Shanghai, Minhang District Patentee after: Xinli Machine Plant, Shanghai Address before: Liantang Town Qingpu District Shanghai city 201717 Zhu Feng highway 6186 Lane 13 Building No. 3 Patentee before: Shanghai Aerospace Hydraulic Control System Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: No. 540 Pusan Road, Pudong New Area, Shanghai, 200125 Patentee after: Shanghai Xinli Machine Factory Co., Ltd. Address before: 201112 No. 3392, Ting Lou Road, Shanghai, Minhang District Patentee before: Xinli Machine Plant, Shanghai |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |