CN215110833U - Manual driving unit of electric actuator - Google Patents
Manual driving unit of electric actuator Download PDFInfo
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- CN215110833U CN215110833U CN202120403763.6U CN202120403763U CN215110833U CN 215110833 U CN215110833 U CN 215110833U CN 202120403763 U CN202120403763 U CN 202120403763U CN 215110833 U CN215110833 U CN 215110833U
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Abstract
The utility model discloses a manual driving unit of an electric actuator, which comprises a sleeve; the transmission nut is fixed at one end of the sleeve; the planet ring is axially arranged and fixed at the other end of the sleeve through a flange plate; the transmission screw rod is in transmission connection with the transmission nut; the planet gear is embedded and installed on the planet ring along the axial direction, and the planet gear penetrates through the outer ring surface and the inner ring surface of the planet ring; the hand-driven mechanism is arranged at the periphery of the planet ring and meshed with the planet gear; the inner transmission mechanism is arranged inside the planetary ring and meshed with the planetary gear. When the hand-driven mechanism drives the planetary gear to rotate, the inner transmission mechanism is in a locking state, the planetary gear can drive the planetary ring and the transmission nut to rotate, and the transmission nut rotates to drive the transmission screw rod to drive the execution unit to move along the axial direction to perform valve opening and closing; when drive mechanism moved in the same reason, planetary gear also can drive the transmission nut rotatory, can realize automatic switch-over between two kinds or multiple drive mode, and it is convenient to switch over, the cost is reduced.
Description
Technical Field
The utility model relates to an electric actuator technical field, concretely relates to electric actuator's manual drive unit.
Background
An electric actuator is a driving device capable of providing linear or rotary motion, and controls the opening and closing of a valve body by the up and down movement of an output shaft of the actuator. In order to cope with an emergency, the conventional electric actuator is further provided with a manual actuator unit, and the valve body can be manually controlled to open or close in an emergency such as a power failure or a power source cut-off.
The manual execution unit and the electric execution unit of the existing electric actuator are connected with the execution unit through the clutch, the clutch is controlled to switch between manual operation and electric operation, the operation is complex, the switching is not convenient, the product cost is greatly increased by the additionally arranged clutch, and the popularization and the use of the electric actuator are not facilitated.
Therefore, it is necessary to develop a manual drive unit that can be switched to an electric drive unit mechanism without a clutch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric actuator's manual drive unit to be connected with the execution unit through the clutch between electric actuator's the manual execution unit and the electric execution unit among the solution prior art, switch between manual and electronic through controlling the clutch, the operation is more complicated, and it is not convenient to switch, and the clutch of addding has increased product cost greatly, is unfavorable for electric actuator's the technical problem of using widely.
In order to realize the purpose, the technical scheme of the utility model is that:
a manual drive unit for an electric actuator comprising:
a sleeve;
the transmission nut is axially fixed at one end of the sleeve;
the planet ring is arranged along the axial direction and is fixed at the other end of the sleeve through a flange plate;
the transmission screw rod sequentially penetrates through the transmission nut, the flange plate and the planet ring along the axis, and is in transmission connection with the transmission nut;
the planet gear is embedded and installed on the planet ring along the axial direction and penetrates out of the outer ring surface and the inner ring surface of the planet ring;
the hand driving mechanism is arranged on the periphery of the planet ring and meshed with the planet gear;
and the inner transmission mechanism is arranged inside the planetary ring and is meshed with the planetary gear.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the transmission lead screw is used for linking with the execution unit, the internal transmission mechanism is used for connecting other drive units, and the planetary gear is simultaneously meshed with the hand drive mechanism and the internal transmission mechanism; when the manual driving mechanism drives the planetary gear to rotate, the internal transmission mechanism is in a locking state, so that the planetary gear can drive the planetary ring to rotate, the sleeve and the transmission nut are rotated, the transmission nut rotates to drive the transmission screw rod to move along the axial direction, and the execution unit is driven to act to open and close the valve; in a similar way, when the inner transmission mechanism acts, the planetary gear can also drive the transmission nut to rotate, so that the manual driving unit can realize automatic switching between two or more driving modes, a clutch is not required to be arranged, the switching is convenient and fast, and the cost is greatly reduced.
On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:
further, the hand-driving mechanism comprises:
the manual worm gear is sleeved outside the planet ring, and an inner ring surface of the manual worm gear is provided with an inner tooth surface meshed with the planet gear;
and the hand wheel is used for driving the manual worm wheel to rotate.
By adopting the scheme, the manual turbine is controlled to rotate through the hand wheel, and the planetary gear is driven to rotate.
Furthermore, an outer tooth surface is arranged on the outer ring surface of the manual worm wheel, the hand wheel is arranged beside the manual worm wheel, an output shaft of the hand wheel is arranged in a tangent mode with the outer ring surface of the manual worm wheel, and a tooth trace meshed with the outer tooth surface is arranged at the output end of the hand wheel.
Furthermore, the inner transmission mechanism comprises a transmission shaft, the end part of the transmission shaft is sleeved outside the transmission screw rod, and a transmission gear meshed with the planetary gear is arranged on the outer ring surface of the end part of the transmission shaft.
By adopting the scheme, the transmission shaft is meshed with the planetary gear through the transmission gear.
The signal gear rod is arranged at the input end of the encoder, the signal gear rod is tangent to the outer ring surface of the sleeve, a signal tooth surface matched with the signal gear rod is arranged on the outer ring surface of the sleeve, and the sleeve is in meshing transmission with the signal gear rod.
By adopting the scheme, when the sleeve rotates, the signal gear rod rotates along with the sleeve, and the encoder can monitor the working state of the execution unit in real time by recording the rotation angle of the signal gear rod and feed data back to the control center.
Furthermore, a circle of planet gears are uniformly arranged on the planet ring at intervals.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is an exploded view of an embodiment of the present invention.
Fig. 2 is a partially enlarged schematic view of a in fig. 1.
Shown in the figure:
1. a sleeve; 101. a signal tooth surface;
2. a drive nut;
3. a planet ring;
4. a flange plate;
5. a transmission screw rod;
6. a planetary gear;
7. a manual turbine; 701. an inner tooth surface; 702. an outer tooth surface;
8. a hand wheel; 801. a tooth trace;
9. a drive shaft; 901. a transmission gear;
10. an encoder; 1001. signal gear pole.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1-2, the manual driving unit of the electric actuator provided in this embodiment includes a sleeve 1, a transmission nut 2, a planet ring 3, a transmission screw 5, a planet gear 6, a manual driving mechanism, and an internal transmission mechanism.
The driving nut 2 is axially fixed at one end of the sleeve 1.
The planet ring 3 is arranged along the axial direction, and the planet ring 3 is fixed at the other end of the sleeve 1 through a flange plate 4.
The transmission screw rod 5 sequentially penetrates through the transmission nut 2, the flange plate 4 and the planet ring 3 along the axis, and the transmission screw rod 5 is in transmission connection with the transmission nut 2.
The planet gear 6 is embedded and installed on the planet ring 3 along the axial direction, and the planet gear 6 penetrates through the outer annular surface and the inner annular surface of the planet ring 3.
A circle of planet gears 6 are evenly arranged on the planet ring 3 at intervals.
The hand-driven mechanism is arranged at the periphery of the planet ring 3 and meshed with the planet gear 6, and the internal transmission mechanism is arranged inside the planet ring 3 and meshed with the planet gear 6.
The hand drive mechanism comprises a hand worm wheel and a hand wheel 8. The manual worm wheel is sleeved outside the planet ring 3, an inner annular surface of the manual worm wheel 7 is provided with an inner tooth surface 701 meshed with the planet gear 6, and the hand wheel 8 is used for driving the manual worm wheel to rotate.
The hand-operated turbine 7 is controlled to rotate by the hand wheel 8, and the planet gear 6 is driven to rotate.
An outer tooth surface 702 is arranged on the outer ring surface of the manual worm wheel 7, the hand wheel 8 is arranged beside the manual worm wheel, an output shaft of the hand wheel 8 is arranged in a tangent mode with the outer ring surface of the manual worm wheel, and a tooth line 801 meshed with the outer tooth surface 702 is arranged at the output end of the hand wheel 8.
The inner transmission mechanism comprises a transmission shaft 9, the end part of the transmission shaft 9 is sleeved outside the transmission screw rod 5, and a transmission gear 901 meshed with the planetary gear 6 is arranged on the outer ring surface of the end part of the transmission shaft 9.
The transmission shaft 9 is engaged with the planetary gear 6 through a transmission gear 901.
The embodiment further comprises an encoder 10, and the specific model of the encoder 10 is DFS60 Inox. The encoder 10 is arranged beside the sleeve 1, a signal gear rod 1001 tangent to the outer annular surface of the sleeve 1 is arranged at the input end of the encoder 10, a signal tooth surface 101 matched with the signal gear rod 1001 is arranged on the outer annular surface of the sleeve 1, and the sleeve 1 is in meshing transmission with the signal gear rod 1001.
When the sleeve 1 rotates, the signal gear rod 1001 rotates along with the sleeve, and the encoder 10 can monitor the working state of the execution unit in real time by recording the rotation angle of the signal gear rod 1001 and feed back data to the control center.
In the embodiment, the transmission screw rod 5 is used for being linked with the execution unit, the internal transmission mechanism is used for being connected with other driving units, and the planetary gear 6 is meshed with the hand-driven mechanism and the internal transmission mechanism at the same time; the manual driving mechanism drives the planetary gear 6 to rotate, and the internal transmission mechanism is in a locking state, so that the planetary gear 6 can drive the planetary ring 3 to rotate, the sleeve 1 and the transmission nut 2 rotate, the transmission nut 2 rotates to drive the transmission screw rod 5 to move axially, and the execution unit is driven to act to open and close the valve; in a similar way, when the inner transmission mechanism acts, the planetary gear 6 can also drive the transmission nut 2 to rotate, so that the manual driving unit can realize automatic switching between two or more driving modes, a clutch is not required to be arranged, the switching is convenient and fast, and the cost is greatly reduced.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. A manual drive unit for an electric actuator, comprising:
a sleeve;
the transmission nut is axially fixed at one end of the sleeve;
the planet ring is arranged along the axial direction and is fixed at the other end of the sleeve through a flange plate;
the transmission screw rod sequentially penetrates through the transmission nut, the flange plate and the planet ring along the axis, and is in transmission connection with the transmission nut;
the planet gear is embedded and installed on the planet ring along the axial direction and penetrates out of the outer ring surface and the inner ring surface of the planet ring;
the hand driving mechanism is arranged on the periphery of the planet ring and meshed with the planet gear;
and the inner transmission mechanism is arranged inside the planetary ring and is meshed with the planetary gear.
2. The manual drive unit of an electric actuator according to claim 1, wherein the manual drive mechanism comprises:
the manual worm gear is sleeved outside the planet ring, and an inner ring surface of the manual worm gear is provided with an inner tooth surface meshed with the planet gear;
and the hand wheel is used for driving the manual worm wheel to rotate.
3. The manual driving unit of the electric actuator according to claim 2, wherein the outer circumferential surface of the manual worm gear is provided with an outer tooth surface, the hand wheel is arranged beside the manual worm gear, the output shaft of the hand wheel is arranged tangentially to the outer circumferential surface of the manual worm gear, and the output end of the hand wheel is provided with a tooth trace meshed with the outer tooth surface.
4. The manual driving unit of an electric actuator according to claim 1, wherein the internal transmission mechanism comprises a transmission shaft, the end of the transmission shaft is sleeved outside the transmission screw rod, and an outer annular surface of the end of the transmission shaft is provided with a transmission gear engaged with the planetary gear.
5. The manual driving unit of an electric actuator according to claim 1, further comprising an encoder, wherein the encoder is disposed beside the sleeve, and the input end of the encoder is provided with a signal gear rod tangent to the outer ring surface of the sleeve, the outer ring surface of the sleeve is provided with a signal tooth surface matched with the signal gear rod, and the sleeve is in meshing transmission with the signal gear rod.
6. The manual drive unit of an electric actuator according to any one of claims 1 to 5, wherein a ring of said planetary gears is arranged on said planetary ring at regular intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120403763.6U CN215110833U (en) | 2021-02-23 | 2021-02-23 | Manual driving unit of electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120403763.6U CN215110833U (en) | 2021-02-23 | 2021-02-23 | Manual driving unit of electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215110833U true CN215110833U (en) | 2021-12-10 |
Family
ID=79335908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120403763.6U Active CN215110833U (en) | 2021-02-23 | 2021-02-23 | Manual driving unit of electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215110833U (en) |
-
2021
- 2021-02-23 CN CN202120403763.6U patent/CN215110833U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Manual driving unit of electric actuator Effective date of registration: 20221028 Granted publication date: 20211210 Pledgee: Bank of China Limited Hangjiang Branch, Yangzhou Pledgor: YANGZHOU HENGCHUN ELECTRONIC Co.,Ltd. Registration number: Y2022320000656 |