CN2573805Y - Electric execution mechanism - Google Patents
Electric execution mechanism Download PDFInfo
- Publication number
- CN2573805Y CN2573805Y CN 02260087 CN02260087U CN2573805Y CN 2573805 Y CN2573805 Y CN 2573805Y CN 02260087 CN02260087 CN 02260087 CN 02260087 U CN02260087 U CN 02260087U CN 2573805 Y CN2573805 Y CN 2573805Y
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- gear
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Abstract
The utility model relates to an electric execution mechanism, which belongs to the field of industrial automation instruments. The utility model is composed of a signal processing device and a speed reduction mechanism, wherein, the connecting mode is that the signal processing device is arranged above an installing plate of the speed reduction mechanism and covered by a cover cap of the signal processing device, and the cover cap is screwed on a cabinet of the speed reduction mechanism. The digital display of the utility model can more sharply and visually read the value of displacement in comparison with staff display, a function module combines a position transmitter and an amplifier of the original execution mechanism into integration, besides, the utility model adds the functions of motor rotation blockage protection, breaking signal protection, self diagnosis of faults, etc., and the precision of the execution mechanism achieves 1.5 percent; besides, the utility model has the advantages of compact structure, small size, good protective property and stable operation and can achieve the output of current signals and resistance signals. The utility model is suitable for various straight displacement type regulating valves.
Description
Technical field
The utility model relates to a kind of automation control mechanism, in particular a kind of electric actuator belongs to the industrial process measurement and control instrument field.
Background technique
In industrial automation control, electric actuator is the field instrument that has a large capacity and a wide range, it can be installed in single seat, two-seater, sleeve, threeway is used on the valves such as angle type, the applicant is in application on August 1st, 2002 model utility, application number is: 02265963.3, and name is called: the electric three passes sealed-regulating valve, a kind of electric actuator of this patent introduction comprises: covering device, retarder, sender unit, motor, its Placement: covering device is buckled on the base plate, handwheel places the cover cap top, and armrest wheel shaft rectangular teeth drives coupling and rotates.Gear Transmission in Reducer is an open architecture, with base plate, axle housing, three basic parts of mounting plate are combined into complete machine, and sender unit is installed on the base plate, it changes the displacement amount of trapezoidal nut into current signal, the maximum characteristics of this patent are the combined type assembling, and are easy to process, use mould few, its deficiency is: 1, in hand wheel shaft and clutch malalignment when assembling, be difficult to guarantee, 2, gear transmission is that open architecture is lubricated relatively poor.
Summary of the invention
The utility model is at the deficiencies in the prior art and defective, a kind of electric actuator is provided, make its more compact structure, transmission lubrication is good, and having function module and signal digital shows, the utility model is realized according to following technological scheme, the utility model is made up of signal processing apparatus and reducing gear two major parts, its Placement is: signal processing apparatus is arranged on the top of the mounting plate of reducing gear, cover cap by signal processing apparatus covers, the cover cap of signalization treatment device on the reducing gear casing, waterproof, dustproof, reducing gear is that trapezoidal screw is done straight-line displacement by gear transmission with the torque conversion of motor, drives valve rod and opens and closes valve.
Signal processing apparatus comprises: function module, motor, sensitive switch, cushion block, digital quantity display device, support, sensor, cam bit, cover cap, bearing support, its Placement is: function module and motor pass through bearing support, sensor passes through support, sensitive switch is separately fixed at the top of mounting plate by cushion block, the digital quantity display device is arranged at the outside of casing, link to each other with function module by lead, the upper end of sensor is provided with cam.
Reducing gear comprises: mounting plate, motor gear, base plate, rolling bearing, casing, trapezoidal nut, central gear, fixture block, trapezoidal screw, pillar, handwheel, the manual gear axle, bridge gear shaft, driving gear, driven gear, its Placement is: mounting plate, base plate is fixed on the casing, the bridge gear shaft that is pressed with driving gear places between mounting plate and the base plate, driving gear and driven gear engagement, central gear and trapezoidal nut link and are arranged in the rolling bearing hole, housing washer is pressed in the chassis hole, trapezoidal screw screws in the trapezoidal nut, fixture block is fixed tightly on the trapezoidal screw, central gear respectively with electric gear, bridge gear shaft is meshed, the manual gear axle is arranged in the chassis hole, upper end and bridge gear shaft engagement, the lower end is provided with handwheel, and two pillars are fastened on the casing below.
Receiving the current signal of self-controller instrument output and the position aperture signal of actuator's sensor output when function module compares, amplifying back output opens, stop, closing three relay signal drive motors does suitable, reverse running, drive the rotation of central gear and trapezoidal nut, trapezoidal screw is moved up or down.Fixture block is fixed on restriction trapezoidal screw rotation on the trapezoidal screw.Central gear and bridge gear shaft engagement, drive the rotation of driving gear and driven gear, the lower end and the driven gear of sensor link, the upper end links with cam bit, cam bit and driven gear are rotated synchronously, just can cut off motor power and stop the motor overshoot to reach whole top or spacing purpose midway when cam bit contacts with sensitive switch.Digital display shows the displacement amount of trapezoidal screw with the percentage form, can very clearly find out the opening value of valve.Mounting plate and base plate are arranged at the upper and lower end of casing respectively, do the two ends of the excessive gear shaft of supporting.Mounting plate is again as cushion block, bearing support, the fixing base of support.Gear on the manual gear axle is meshed with bridge gear shaft, rotates the lower end handwheel with hand and just can make the central gear rotation, drives trapezoidal screw and moves.The time spent does not push away manual gear in axially at ordinary times, makes to be out of gear, and prevents bearing wear.Cover cap is spun on the casing, prevents water droplet, and dust enters actuator, and pillar is used for connecting with valve.
The demonstration of the utility model numeral shows the more clear and intuitive shift value of reading than scale; function module is blended in one with former actuator electric pneumatic converter and two electric components of amplifier; also increased the motor rotation blockage protection, protection when losing signal, functions such as fault self-diagnosis; make the precision of actuator reach 1.5%; the utility model compact structure volume is little, and protective is good, stable working; can realize the output of current signal or resistance signal, be fit to various straight-line displacement type modulating valve and use.
Description of drawings
Fig. 1 the utility model structural representation
Embodiment
As shown in Figure 1, the utility model is made up of signal processing apparatus 1 and reducing gear 2 two major parts, its Placement is: signal processing apparatus 1 is arranged on the top of the mounting plate 7 of reducing gear 2, cover cap 26 by signal processing apparatus 1 covers, the cover cap 26 of signalization treatment device 1 on reducing gear 2 casings 12.
Signal processing apparatus 1 comprises: function module 3, motor 4, sensitive switch 5, cushion block 6, digital quantity display device 8, support 23, sensor 24, cam bit 25, cover cap 26, bearing support 27, its Placement is: function module 3 and motor 4 are by bearing support 27, sensor 24 is by support 23, sensitive switch 5 is separately fixed at the top of mounting plate 7 by cushion block 6, digital quantity display device 8 is arranged at the outside of casing 12, link to each other with function module 3 by lead, the upper end of sensor 24 is provided with cam 25.
Reducing gear 2 comprises: mounting plate 7, motor gear 9, base plate 10, rolling bearing 11, casing 12, trapezoidal nut 13, central gear 14, fixture block 15, trapezoidal screw 16, pillar 17, handwheel 18, manual gear axle 19, bridge gear shaft 20, driving gear 21, driven gear 22, its Placement is: mounting plate 7, base plate 10 is fixed on the casing 12, the bridge gear shaft 20 that is pressed with driving gear 21 places between mounting plate 7 and the base plate 10, driving gear 21 and driven gear 22 engagements, central gear 14 links with trapezoidal nut 13 and is arranged in rolling bearing 11 holes, rolling bearing 11 outer rings are pressed in casing 12 holes, trapezoidal screw 16 screws in the trapezoidal nut 13, fixture block 15 is fixed tightly on the trapezoidal screw 16, central gear 14 respectively with electric gear 9, bridge gear shaft 20 is meshed, manual gear axle 19 is arranged in casing 12 holes, upper end and bridge gear shaft 20 engagements, the lower end is provided with 18, two pillars 17 of handwheel and is fastened on casing 12 belows.
Claims (3)
1, a kind of electric actuator, it is characterized in that forming by signal processing apparatus (1) and reducing gear (2) two major parts, its Placement is: signal processing apparatus (1) is arranged on the top of the mounting plate (7) of reducing gear (2), cover cap (26) by signal processing apparatus (1) covers, and reducing gear (2) casing (12) is gone up the cover cap (26) of signalization treatment device 1.
2, this electric actuator according to claim 1, it is characterized in that signal processing apparatus (1) comprising: function module (3), motor (4), sensitive switch (5), cushion block (6), digital quantity display device (8), support (23), sensor (24), cam bit (25), cover cap (26), bearing support (27), its Placement is: function module (3) and motor (4) are by bearing support (27), sensor (24) is by support (23), sensitive switch (5) is separately fixed at the top of mounting plate (7) by cushion block (6), digital quantity display device (8) is arranged at the outside of casing (12), link to each other with function module (3) by lead, the upper end of sensor (24) is provided with cam (25).
3, this electric actuator according to claim 1, it is characterized in that reducing gear (2) comprising: mounting plate (7), motor gear (9), base plate (10), rolling bearing (11), casing (12), trapezoidal nut (13), central gear (14), fixture block (15), trapezoidal screw (16), pillar (17), handwheel (18), manual gear axle (19), bridge gear shaft (20), driving gear (21), driven gear (22), its Placement is: mounting plate (7), base plate (10) is fixed on the casing (12), the bridge gear shaft (20) that is pressed with driving gear (21) places between mounting plate (7) and the base plate (10), driving gear (21) and driven gear (22) engagement, central gear (14) links with trapezoidal nut (13) and is arranged in rolling bearing (11) hole, rolling bearing (11) outer ring is pressed in casing (12) hole, trapezoidal screw (16) screws in the trapezoidal nut (13), fixture block (15) is fixed tightly on the trapezoidal screw (16), central gear (14) respectively with electric gear (9), bridge gear shaft (20) is meshed, manual gear axle (19) is arranged in casing (12) hole, upper end and bridge gear shaft (20) engagement, the lower end is provided with handwheel (18), and two pillars (17) are fastened on casing (12) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260087 CN2573805Y (en) | 2002-09-19 | 2002-09-19 | Electric execution mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260087 CN2573805Y (en) | 2002-09-19 | 2002-09-19 | Electric execution mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573805Y true CN2573805Y (en) | 2003-09-17 |
Family
ID=33727228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260087 Expired - Fee Related CN2573805Y (en) | 2002-09-19 | 2002-09-19 | Electric execution mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573805Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644364A (en) * | 2013-11-29 | 2014-03-19 | 浙江盾安自控科技有限公司 | Heat supply metering monitoring system |
| CN111895155A (en) * | 2020-07-16 | 2020-11-06 | 河南宜和城保装备科技实业有限公司 | Main shaft rotation executing device of movable valve speed reducer |
| CN112377340A (en) * | 2021-01-18 | 2021-02-19 | 宁波协诺机电有限公司 | Electric actuator, turbocharging system and commercial vehicle |
-
2002
- 2002-09-19 CN CN 02260087 patent/CN2573805Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644364A (en) * | 2013-11-29 | 2014-03-19 | 浙江盾安自控科技有限公司 | Heat supply metering monitoring system |
| CN103644364B (en) * | 2013-11-29 | 2016-11-23 | 浙江盾安自控科技有限公司 | Heat metering monitoring system |
| CN111895155A (en) * | 2020-07-16 | 2020-11-06 | 河南宜和城保装备科技实业有限公司 | Main shaft rotation executing device of movable valve speed reducer |
| CN112377340A (en) * | 2021-01-18 | 2021-02-19 | 宁波协诺机电有限公司 | Electric actuator, turbocharging system and commercial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |