CN201636415U - Electric actuator - Google Patents
Electric actuator Download PDFInfo
- Publication number
- CN201636415U CN201636415U CN2010201160683U CN201020116068U CN201636415U CN 201636415 U CN201636415 U CN 201636415U CN 2010201160683 U CN2010201160683 U CN 2010201160683U CN 201020116068 U CN201020116068 U CN 201020116068U CN 201636415 U CN201636415 U CN 201636415U
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- CN
- China
- Prior art keywords
- gear
- electric actuator
- integrated circuit
- shell body
- lower shell
- 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
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Abstract
The utility model discloses an electric actuator, which comprises an upper casing, a lower casing, a gearbox, a motor, a gear transmission set, a control circuit and a position switch. A through hole convenient for the gear transmission set to output power is integrally formed at the bottom of the lower casing, and a penetrating hole convenient for leading a lead in is integrally formed on the lateral wall of the lower casing. The gearbox comprises an upper plate and a lower plate which are connected and fixed via a strut and are in upper and lower layer structure, the motor, the control circuit and the position switch are connected and fixed on the upper plate, the gear transmission set is arranged between the upper plate and the lower plate and comprises a motor gear connected with the motor, a transmission gear and a spindle gear used for outputting power to a load, the spindle gear is fixedly provided with an output shaft capable of outputting power of the spindle gear to the load, the control circuit is integrated in an integrated circuit board, and the position switch is connected with the control circuit in the integrated circuit board via a plurality of L-shaped contact pins and arranged on one side of the integrated circuit board parallelly.
Description
Technical field
The utility model relates to a kind of electric actuator, more particularly, relates to a kind of electric actuator that is used for valve that can realize telecontrol.
Background technique
Valve extensively should be used to provide effects such as pipeline dams, current limliting in every profession and trade.Especially in petrochemical industry, in the industries such as rock gas, for safety, require more strict to valve and the electric actuator that is used for control valve, yet the existing electric actuator that is used for valve includes lower shell body, in last lower shell body, be provided with motor, control circuit, position switch and gear transmission group, utilize the power of gear transmission group motor to export load to, it is valve, and the unlatching of being carried out valve by control circuit control position switch is with closed, and the size of folding, but, cause the structure of electric actuator inside mixed and disorderly because the control circuit of existing electric actuator includes a circuit board, and is located at the lead in the lower shell body, and cause volume excessive owing to structural distribution is unreasonable, simultaneously, the pin of existing position switch all is a straight rod type, and directly extends out from position switch, and electric actuator is for the cooperation position switch, that the volume of integral body can only be done is enough big, thereby causes the volume of electric actuator excessive, and cost is too high.
The model utility content
The purpose of this utility model is to provide a kind of volume-diminished, the electric actuator that cost reduces.
Electric actuator in the utility model includes upper shell, the lower shell body that can be mutually locked and be tightly connected, and is arranged on described gear-box, motor, gear transmission group, control circuit and the position switch of enclosure interior up and down,
The bottom of described lower shell body is formed with the through hole of being convenient to described gear transmission group outputting power, and the integrally formed one-tenth of the sidewall of described lower shell body is convenient to the perforation that lead is introduced;
Described gear-box includes through pillar and is connected and fixed and forms the top plate and the lower plywood of double-layer structure up and down, on top plate, be connected and fixed described motor, control circuit and position switch are set, described gear transmission group is located at described up and down between the laminate, include motor gear, the driving gear that is connected with described motor and be used for the mainshaft gear of outputting power to load, described mainshaft gear is set with the output shaft that the power of described mainshaft gear can be exported to described load;
Described control circuit is integrated in the surface-mounted integrated circuit, and simultaneously described position switch is connected with control circuit in the described surface-mounted integrated circuit through a plurality of L type pins, and is arranged on a side of described surface-mounted integrated circuit abreast with described surface-mounted integrated circuit.
Described lower shell body inner bottom part closes on the described position that is used for the perforation of lead-in conductor and is formed with the dividing plate that prevents that dust from entering, and this dividing plate and lower shell body are one-body molded, and the design of gapless can improve the long-term temperature difference, produces the infiltration that is produced behind the plastic deformation.
The upper surface of described lower shell body is one-body molded boss, and described upper shell is provided with the button edge of the outer periphery that can coat described lower shell body simultaneously.
Being provided with convenient the taking-up in the through hole of described lower shell body bottom changes and can be connected with the end of described output shaft and the power of described output shaft is exported synchronously to the coupling shaft of described load.
One end of described coupling shaft is provided with at least one projection that is used for being connected and fixed with described output shaft, and the intermediate portion is provided with the through hole that is connected driving with described load.
Described surface-mounted integrated circuit erectly is fixedly installed on the upper surface of described top plate.
After being set up in parallel up and down, described position switch is set in parallel in the side of described surface-mounted integrated circuit.
Electric actuator in the utility model is by being integrated in control circuit in the surface-mounted integrated circuit, and improved by pin to position switch, make position switch can be set in parallel in the side of surface-mounted integrated circuit, thereby simplify the line construction of electric actuator inside, dwindle the volume of electric actuator.In addition, electric actuator in the utility model is located at motor, intergrated circuit, position switch the upper surface of top plate, and the gear transmission group is located between gear-box top plate and the lower plywood, make that each components and parts of electric actuator inside are directly fixing with last lower shell body, tool keeps in repair, changes advantage easily.
Description of drawings
Fig. 1 is the utility model electric actuator embodiment one a three-dimensional exploded view one;
Fig. 2 is the utility model electric actuator embodiment one a three-dimensional exploded view two;
Fig. 3 is the utility model electric actuator embodiment two a three-dimensional exploded view one;
Fig. 4 is the utility model electric actuator embodiment two a three-dimensional exploded view two;
Fig. 5 is the schematic perspective view of lower shell body in the utility model;
Fig. 6 is the three-dimensional structure for amplifying schematic representation of this practical middle position switch and surface-mounted integrated circuit.
Embodiment
Below in conjunction with accompanying drawing the embodiment in the utility model is elaborated.
Embodiment one
As depicted in figs. 1 and 2, the electric actuator in the present embodiment includes lower shell body 1, upper shell 2 and inserts the interior gear-box of upper and lower casing.Wherein:
Upper and lower casing 2,1 is one-body molded by mold, and through link as: screw 10 can be mutually locked fixing.In lower shell body 1, be formed with the containing space 12 that is used to insert gear box structure, simultaneously in the bottom of lower shell body 1 one-body molded have be convenient to drive load, as: the through hole 11 that the output shaft of valve opening and closure wears reaches and be formed with the perforation 14 of being convenient to lead-in conductor on the sidewall of lower shell body 1, as shown in Figure 5, in idle space 12, close on perforation 14 integrally formed being useful in position and prevent that dust from entering the dividing plate 13 of upper and lower casing 1,2 inside.In addition be provided with boss 15 around 12 1 weeks of containing space at the upper surface of lower shell body 1, corresponding with this boss 15, lower surface at upper shell 2 is provided with the groove (not shown), in this groove, inserted seal ring 5, make upper and lower casing 1,2 after covering mutually, can form sealing, prevent entering of dust, simultaneously, button edge 20 in upper shell 2 is formed with and upper shell 1 can be coated on further increases dustproof effect.
As depicted in figs. 1 and 2, gear box structure is made by metallic material, and via pillar 34 and up and down double layer of metal plate 30,36 be formed with double-layer structure up and down, be set with motor 31, surface-mounted integrated circuit 32, position switch 33 and indicating device 37 at the upper surface of upper strata sheet metal 30 through link.Between upper strata sheet metal 30 and lower metal plate 36, be provided with motor gear, gear transmission group and mainshaft gear 38, wherein motor gear is connected with motor 31, with the output shaft (not shown) of mainshaft gear 38 coaxial rotation be used for the unlatching that drives valve with closed.Between the end of output shaft and valve, be provided with coupling shaft 4, this coupling shaft 4 can embed lower shell body 1 bottom and offer in the through hole 11, and be connected with output shaft, wherein coupling shaft 4 forms at least one projection 41 at an end that is connected with output shaft, the groove set with output shaft end is connected fixing, and shown in the figure is two projections 41, but not as limit, can be one or more, also can substitute by other structures.Be provided with the through hole 42 that cooperates with valve driving shape shaft, specification in the centre of coupling shaft, the through hole in the present embodiment is a square opening, and this through hole is that the sectional shape according to different valve driving axles is provided with, not as limit.By the setting of this coupling shaft 4, only need to change different coupling shafts and just can make electric actuator cooperate the valve of different regulations to use, and need not to change whole electric actuator, have advantage easy to use, that reduce cost.
As shown in Figure 6, the integrated control circuit of electric actuator in the surface-mounted integrated circuit 32 in the present embodiment, this surface-mounted integrated circuit 32 erectly is fixedly installed on the upper surface of top plate 30 through link, as Fig. 1 and shown in Figure 6, can certainly with top plate 30 parallel (not shown)s.And position switch 33 is directly inserted on the surface-mounted integrated circuit 32, and be connected with control circuit, after being set up in parallel up and down, the position switch 33 in the utility model is set in parallel in the side of surface-mounted integrated circuit 32.Owing to how control circuit is integrated in the surface-mounted integrated circuit, reach circuit and how to distribute, this is to realize easily to one skilled in the art, therefore for the distribution of the circuit in surface-mounted integrated circuit explanation no longer separately.What be used for link position switch 33 and surface-mounted integrated circuit 32 is a plurality of L type pins 39, the two ends of each L type pin 39 are connected with position switch 33 with surface-mounted integrated circuit 32 respectively, the distance between position switch 33 and the surface-mounted integrated circuit 32 can be reduced like this, thereby the overall volume of electric actuator can be reduced.
Embodiment two
As shown in Figure 3 and Figure 4, the structure in the present embodiment two is identical with structure in the foregoing description one, and its difference only is the structural type difference of motor 31.
In sum, YE in the utility model is by being integrated in control circuit in the surface-mounted integrated circuit, and improved by the pin to position switch, so that position switch can be set in parallel in the side of surface-mounted integrated circuit, thereby simplify the structure of YE inside, dwindle the volume of YE. YE is located at motor, integrated circuit, position switch the upper surface of top plate simultaneously, and the gear drive group is located between gear-box top plate and the lower plywood, so that each components and parts of YE inside are directly fixing with upper-lower casing, tool keeps in repair, changes easily advantage. By at output shaft end connecting axle being set, just can cooperating the load of different size to use so that need only the connecting axle of changing different size, thereby subtract the specification setting of YE in addition, increase the scope of application of YE.
Claims (7)
1. an electric actuator includes upper shell, the lower shell body that can be mutually locked and be tightly connected, and is arranged on described gear-box, motor, gear transmission group, control circuit and the position switch of enclosure interior up and down, it is characterized in that,
The bottom of described lower shell body is formed with the through hole of being convenient to described gear transmission group outputting power, and the integrally formed one-tenth of the sidewall of described lower shell body is convenient to the perforation that lead is introduced;
Described gear-box includes through pillar and is connected and fixed and forms the top plate and the lower plywood of double-layer structure up and down, on top plate, be connected and fixed described motor, control circuit and position switch are set, described gear transmission group is located at described up and down between the laminate, include motor gear, the driving gear that is connected with described motor and be used for the mainshaft gear of outputting power to load, described mainshaft gear is set with the output shaft that the power of described mainshaft gear can be exported to described load;
Described control circuit is integrated in the surface-mounted integrated circuit, and simultaneously described position switch is connected with control circuit in the described surface-mounted integrated circuit through a plurality of L type pins, and is arranged on a side of described surface-mounted integrated circuit abreast with described surface-mounted integrated circuit.
2. electric actuator according to claim 1 is characterized in that, described lower shell body inner bottom part closes on the described position that is used for the perforation of lead-in conductor and is formed with the dividing plate that prevents that dust from entering.
3. electric actuator according to claim 1 is characterized in that, the upper surface of described lower shell body is one-body molded boss, and described upper shell is provided with the button edge of the outer periphery that can coat described lower shell body simultaneously.
4. electric actuator according to claim 1 is characterized in that, is provided with convenient the taking-up and changes and can be connected with the end of described output shaft and the power of described output shaft is exported synchronously to the coupling shaft of described load in the through hole of described lower shell body bottom.
5. electric actuator according to claim 4 is characterized in that, an end of described coupling shaft is provided with at least one projection that is used for being connected and fixed with described output shaft, and the intermediate portion is provided with the through hole that is connected driving with described load.
6. electric actuator according to claim 1 is characterized in that described surface-mounted integrated circuit erectly is fixedly installed on the upper surface of described top plate.
7. electric actuator according to claim 6 is characterized in that, is set in parallel in the side of described surface-mounted integrated circuit after described position switch is set up in parallel up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201160683U CN201636415U (en) | 2010-02-02 | 2010-02-02 | Electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201160683U CN201636415U (en) | 2010-02-02 | 2010-02-02 | Electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636415U true CN201636415U (en) | 2010-11-17 |
Family
ID=43080908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201160683U Expired - Lifetime CN201636415U (en) | 2010-02-02 | 2010-02-02 | Electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174864A (en) * | 2013-03-19 | 2013-06-26 | 沈国庆 | Limiting mechanism used for electric actuator of valve |
| CN109450165A (en) * | 2018-12-21 | 2019-03-08 | 中原内配（上海）电子科技有限公司 | A kind of automobile electrically-controlled actuator |
-
2010
- 2010-02-02 CN CN2010201160683U patent/CN201636415U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103174864A (en) * | 2013-03-19 | 2013-06-26 | 沈国庆 | Limiting mechanism used for electric actuator of valve |
| CN109450165A (en) * | 2018-12-21 | 2019-03-08 | 中原内配（上海）电子科技有限公司 | A kind of automobile electrically-controlled actuator |
| CN109450165B (en) * | 2018-12-21 | 2024-05-28 | 中原内配（上海）电子科技有限公司 | Electric control actuator for automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
|
| CX01 | Expiry of patent term |