CN103174864A - Limiting mechanism used for electric actuator of valve - Google Patents
Limiting mechanism used for electric actuator of valve Download PDFInfo
- Publication number
- CN103174864A CN103174864A CN2013100923445A CN201310092344A CN103174864A CN 103174864 A CN103174864 A CN 103174864A CN 2013100923445 A CN2013100923445 A CN 2013100923445A CN 201310092344 A CN201310092344 A CN 201310092344A CN 103174864 A CN103174864 A CN 103174864A
- Authority
- CN
- China
- Prior art keywords
- cam
- electric actuator
- central shaft
- valve
- fast pulley
- 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
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The invention provides a limiting mechanism used for an electric actuator of a valve. The limiting mechanism used for the electric actuator of the valve comprises a central shaft provided with a flat shaft, and at least one limiting switch which is located on an integrated circuit board. The limiting mechanism further comprises a limiting cam assembly and compression nuts, wherein the limiting cam assembly comprises a fixed wheel and two cams, the fixed wheel is located below the cams and fixed on the central shaft in a coaxial mode, the cams correspond to the limiting switch, and the cams are fixed on the central shaft in a tightly pressing mode through the compression nuts. According to the limiting mechanism used for the electric actuator of the valve, the limiting position of the electric actuator can be adjusted quickly, accurately and simply through the adjustment of the compression nuts.
Description
Technical field
The present invention relates to a kind of position-limit mechanism of the electric actuator for valve, belong to device class technical field.
Background technique
Electric actuator is mounted in the drive unit on valve, and the reciprocating rotation that electric actuator is controlled in electricity consumption comes the Kai Heguan of control valve.The electric actuator of each manufacturer production comprises position-limit mechanism and central shaft now, and spacing position regulation precision is not high, the adjusted position difficulty.
Summary of the invention
Technical problem to be solved by this invention is to overcome defective of the prior art, provide a kind of fast, accurately, the position-limit mechanism of simple regulating electric final controlling element.
For solving the problems of the technologies described above, the invention provides a kind of position-limit mechanism of the electric actuator for valve, comprise central shaft and at least one limit switch with flat axle, limit switch is positioned on surface-mounted integrated circuit, and position-limit mechanism also comprises limit cam and clamping nut, and described limit cam comprises a fast pulley and two cams, fast pulley is positioned at the below of cam, fast pulley is coaxial to be fixed on central shaft, and cam is corresponding with limit switch, and clamping nut is fixed on cam pressing on central shaft.
As a further improvement on the present invention, the one side of described fast pulley is the concavo-convex flank of tooth, and another side is with flat groove, and flat groove is combined with the flat axle on central shaft, and fast pulley is coaxial to be fixed on central shaft.
As a further improvement on the present invention, the both ends of the surface of described cam all have the concavo-convex flank of tooth, the concavo-convex flank of tooth overlaying and articulation of the concavo-convex flank of tooth of cam and fast pulley.
The beneficial effect that the present invention reaches: the invention provides a kind of position-limit mechanism of the electric actuator for valve, can be fast by regulating clamping nut, accurately, the simple spacing position of adjusting actuator.
Description of drawings
Fig. 1 is the schematic diagram of electric actuator position-limit mechanism;
Fig. 2 is the plan view of cam;
Fig. 3 is the plan view of fast pulley;
Fig. 4 is the plan view of fast pulley;
Embodiment
The invention will be further described below in conjunction with accompanying drawing.Following examples only are used for technological scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
As depicted in figs. 1 and 2, the invention provides a kind of position-limit mechanism of the electric actuator for valve, comprise the central shaft 3 with flat axle, four limit switches 1, clamping nut 6 and limit cams 2.Limit cam 2 comprises a fast pulley 4 and two cams 5; Limit switch 1 is positioned on surface-mounted integrated circuit 7, and fast pulley 4 is positioned at the below of cam 5, and fast pulley 4 is coaxial to be fixed on central shaft 3; Cam 5 is corresponding with limit switch 1, and clamping nut 6 is pressed abd fixed on cam 5 on central shaft 3.
As shown in Figure 3 and Figure 4, the one side of fast pulley 4 is the concavo-convex flank of tooth, and another side is with flat groove, and the flat axle of flat groove on central shaft 3 is combined, and fast pulley 4 is fixed on central shaft 3; The both ends of the surface of cam 5 all have the concavo-convex flank of tooth, and the concavo-convex flank of tooth overlaying and articulation of the concavo-convex flank of tooth of cam 5 and fast pulley 4 is fixed.When needing to regulate, as required clamping nut 6 is unclamped, rotating cam 5, the concavo-convex flank of tooth representative degree number on cam 5 sections rotates several teeth and represents the several years, is transferred to compression clamping nut 6 behind the desired position.In the rotation process of cam 5 with central shaft 3, when the salient point 8 on cam 5 contacted with limit switch 1, the limit switch that is in normal open disconnected, and comes the Kai Heguan of control valve by the through and off of controlling limit switch.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (3)
1. position-limit mechanism that is used for the electric actuator of valve, comprise central shaft (3) and at least one limit switch (1) with flat axle, limit switch (1) is positioned on surface-mounted integrated circuit (7), it is characterized in that: also comprise limit cam (2) and clamping nut (6), described limit cam (2) comprises a fast pulley (4) and two cams (5), fast pulley (4) is positioned at the below of cam (5), fast pulley (4) is coaxial to be fixed on central shaft (3), cam (5) is corresponding with limit switch (1), clamping nut (6) is pressed abd fixed on cam (5) on central shaft (3).
2. the position-limit mechanism of a kind of electric actuator for valve according to claim 1, it is characterized in that: the one side of described fast pulley (4) is the concavo-convex flank of tooth, another side is with flat groove, the flat axle of flat groove on central shaft (3) is combined, and fast pulley (4) is coaxial to be fixed on central shaft (3).
3. the position-limit mechanism of a kind of electric actuator for valve according to claim 1, it is characterized in that: the both ends of the surface of described cam (5) all have the concavo-convex flank of tooth, the concavo-convex flank of tooth overlaying and articulation of the concavo-convex flank of tooth of cam (5) and fast pulley (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100923445A CN103174864A (en) | 2013-03-19 | 2013-03-19 | Limiting mechanism used for electric actuator of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100923445A CN103174864A (en) | 2013-03-19 | 2013-03-19 | Limiting mechanism used for electric actuator of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103174864A true CN103174864A (en) | 2013-06-26 |
Family
ID=48634922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100923445A Pending CN103174864A (en) | 2013-03-19 | 2013-03-19 | Limiting mechanism used for electric actuator of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174864A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564677A (en) * | 1995-02-14 | 1996-10-15 | General Electric Company | Linear actuator with force switch for detecting axial load |
| CN2773877Y (en) * | 2005-01-21 | 2006-04-19 | 张臣义 | Assembled auxiliary switch |
| CN201636415U (en) * | 2010-02-02 | 2010-11-17 | 欣达企业有限公司 | Electric actuator |
| CN201651510U (en) * | 2010-02-10 | 2010-11-24 | 河南理工大学 | Secondary torque control switch mechanism of valve electric device |
| CN201936763U (en) * | 2011-01-17 | 2011-08-17 | 浙江扬戈电器有限公司 | Master controller |
| CN202327299U (en) * | 2011-11-18 | 2012-07-11 | 浙江澳翔自控科技有限公司 | Travel detection assembly of electric actuator |
| CN202423037U (en) * | 2011-12-19 | 2012-09-05 | 吴忠仪表有限责任公司 | Cam-type contact positioning device for travel switch |
| CN102856093A (en) * | 2012-08-21 | 2013-01-02 | 无锡市拓发自控设备有限公司 | Cam controller with mechanical limit, forced disconnection and dynamic monitoring functions |
| CN203202348U (en) * | 2013-03-19 | 2013-09-18 | 沈国庆 | Limiting mechanism of electric actuator for valve |
-
2013
- 2013-03-19 CN CN2013100923445A patent/CN103174864A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5564677A (en) * | 1995-02-14 | 1996-10-15 | General Electric Company | Linear actuator with force switch for detecting axial load |
| CN2773877Y (en) * | 2005-01-21 | 2006-04-19 | 张臣义 | Assembled auxiliary switch |
| CN201636415U (en) * | 2010-02-02 | 2010-11-17 | 欣达企业有限公司 | Electric actuator |
| CN201651510U (en) * | 2010-02-10 | 2010-11-24 | 河南理工大学 | Secondary torque control switch mechanism of valve electric device |
| CN201936763U (en) * | 2011-01-17 | 2011-08-17 | 浙江扬戈电器有限公司 | Master controller |
| CN202327299U (en) * | 2011-11-18 | 2012-07-11 | 浙江澳翔自控科技有限公司 | Travel detection assembly of electric actuator |
| CN202423037U (en) * | 2011-12-19 | 2012-09-05 | 吴忠仪表有限责任公司 | Cam-type contact positioning device for travel switch |
| CN102856093A (en) * | 2012-08-21 | 2013-01-02 | 无锡市拓发自控设备有限公司 | Cam controller with mechanical limit, forced disconnection and dynamic monitoring functions |
| CN203202348U (en) * | 2013-03-19 | 2013-09-18 | 沈国庆 | Limiting mechanism of electric actuator for valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105411379A (en) | Electric pressure cooker and pressure regulating device thereof | |
| CN104440681A (en) | Cam clamping mechanism | |
| CN203202348U (en) | Limiting mechanism of electric actuator for valve | |
| CN203542443U (en) | Clamping tool for connecting flanges | |
| CN103174864A (en) | Limiting mechanism used for electric actuator of valve | |
| CN204414797U (en) | Offset press UV baking oven elevating mechanism | |
| CN204339244U (en) | The pagoda spring assembling mechanism of vehicle steering | |
| CN204130515U (en) | There is the disk clamping device of position limiting structure | |
| CN104632964B (en) | The adjustable small angle ratchet positioner with V-type locating slot of force value | |
| CN205260966U (en) | Valve transmission mechanism | |
| CN203199785U (en) | Adjustable pay-off rack | |
| CN206130181U (en) | Can install hemisphere ball valve spool structure of valve plate additional | |
| CN203077614U (en) | Molding press | |
| CN204524396U (en) | A kind of gap blade automatic regulating apparatus of lock formula plate shearing machine | |
| CN204013043U (en) | New structure environmental protection threephase asynchronous | |
| CN103070561A (en) | Drawer height adjusting device of stealth-type slide rail | |
| CN203314463U (en) | Drawer height adjusting device of hidden slide rail | |
| CN203350361U (en) | Phase calibrating device for testing bench of electronic control monoblock pump | |
| CN206432159U (en) | A kind of special on-load voltage regulating switch of distribution transformer | |
| CN207325716U (en) | A kind of printing machine aids in hole punched device | |
| CN203222703U (en) | Paper machine scraper full-automatic on-line regulating device | |
| CN104410215A (en) | Brush motor brush pressure adjustment method and assisting tool | |
| CN205827287U (en) | A kind of regulating circuit | |
| CN201074694Y (en) | Device for continuously regulating and positioning electric activator | |
| CN204262168U (en) | A kind of diel of adjustable punching press angle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |