CN214466504U - Electric drive unit of electric actuator - Google Patents
Electric drive unit of electric actuator Download PDFInfo
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- CN214466504U CN214466504U CN202120404086.XU CN202120404086U CN214466504U CN 214466504 U CN214466504 U CN 214466504U CN 202120404086 U CN202120404086 U CN 202120404086U CN 214466504 U CN214466504 U CN 214466504U
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- electric
- gear
- planet carrier
- planetary gear
- main shaft
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Abstract
The utility model discloses an electric drive unit of an electric actuator, which comprises a main shaft, wherein one end of the main shaft is provided with an execution end, and the other end of the main shaft is provided with an action end; the planet carrier is sleeved and fixed at the action end, and the planet carrier and the main shaft are matched to form an annular slot with an outward opening; the planet gear is embedded and installed on the planet carrier along the axial direction and penetrates through the outer ring surface and the inner ring surface of the planet carrier; the external electric driving mechanism is arranged at the periphery of the planetary gear and meshed with the planetary gear; the inner transmission mechanism is arranged in the annular slot and meshed with the planetary gear. When the external electric driving mechanism acts, the planetary gear is driven to rotate, and the internal transmission mechanism is in a locking state, so that the planetary gear can drive the planetary carrier to rotate, and the action is transmitted to the execution unit to perform valve switching action; in a similar way, when the inner transmission mechanism acts, the planet gear can also drive the planet carrier to rotate, can automatically switch between two or more driving modes, does not need to be provided with a clutch, is convenient to switch and greatly reduces the cost.
Description
Technical Field
The utility model relates to an electric actuator technical field, concretely relates to electric actuator's electric 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, a conventional electric actuator is further provided with a manual actuator, 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 actuating mechanism and the electric actuating mechanism of the existing electric actuator are connected with the actuating unit through the clutch, the clutch is switched between manual operation and electric operation through control, 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 an electric drive unit capable of switching between the drive source and another power source without a clutch.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an electric actuator's electric drive unit to be connected with the execution unit through the clutch between electric actuator's the manual actuator who solves among the prior art and the electric actuator, 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:
an electric drive unit for an electric actuator, comprising:
one end of the main shaft is provided with an execution end, and the other end of the main shaft is provided with an action end;
the planet carrier is sleeved and fixed at the action end, and the planet carrier and the main shaft are matched to form an annular slot with an outward opening;
the planet gear is embedded and installed on the planet carrier along the axial direction and penetrates through the outer ring surface and the inner ring surface of the planet carrier;
the external electric driving mechanism is arranged at the periphery of the planetary gear and meshed with the planetary gear;
and the inner transmission mechanism is arranged in the annular slot and meshed with the planetary gear.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses the execution end of main shaft is used for connecting the execution unit of electric actuator, and the action end is used for the action of input control main shaft, and the embedded planetary gear that installs on the fixed planet carrier of main shaft action end, because planetary gear meshes the setting with outer electric drive mechanism and interior drive mechanism simultaneously; when the external electric drive mechanism acts, the planetary gear is driven to rotate, and the planetary gear can drive the planetary carrier to rotate because the internal transmission mechanism is in a locking state, so that the main shaft rotates to transmit the action to the execution unit to perform valve opening and closing actions; similarly, when the inner transmission mechanism acts, the planet gear can drive the planet carrier to rotate; therefore, the automatic switching between two or more driving modes can be realized, 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 external electric driving mechanism includes:
the electric worm gear is sleeved outside the planet carrier, and an inner ring surface of the electric worm gear is provided with an inner tooth surface meshed with the planet gear;
and the driving motor is used for controlling the electric worm gear to rotate.
Through adopting above-mentioned scheme, driving motor control electric worm wheel is rotatory to it is rotatory to drive planetary gear.
Furthermore, the outer ring surface of the electric worm gear is provided with an outer tooth surface, the driving motor is arranged beside the electric worm gear, an output shaft of the driving motor is arranged in a tangent manner with the outer ring surface of the electric worm gear, and the output end of the driving motor is provided with a tooth trace meshed with the outer tooth surface.
Furthermore, the inner transmission mechanism comprises a transmission shaft, the end part of the transmission shaft is inserted into the annular slot, 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, one end of the transmission shaft is inserted into the annular slot to be meshed with the planetary gear, and the other end of the transmission shaft is used for connecting other transmission mechanisms or driving mechanisms.
Furthermore, an execution gear is arranged at the execution end of the main shaft.
By adopting the scheme, the transmission with the execution unit is realized through the execution gear.
Furthermore, a circle of planet gears are uniformly arranged on the planet carrier 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 main shaft; 101. an execution end; 102. an action end; 103. an execution gear;
2. a planet carrier;
3. a planetary gear;
4. an electric worm gear; 401. an inner tooth surface; 402. an outer tooth surface;
5. a drive motor; 501. a tooth trace;
6. a drive shaft; 601. a transmission gear;
7. an annular slot.
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 "central," "upper," "lower," "vertical," "horizontal," "inner," "outer," "axial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element 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 present embodiment provides an electric driving unit of an electric actuator, which includes a main shaft 1, a planet carrier 2, a planetary gear 3, an external electric driving mechanism and an internal transmission mechanism.
One end of the main shaft 1 is provided with an execution end 101, the other end is provided with an action end 102,
the actuating end 101 of the main shaft 1 is provided with an actuating gear 103, and is in transmission with the actuating unit through the actuating gear 103.
The planet carrier 2 is fixed on the action end 102 in a sleeved mode, the planet carrier 2 is matched with the main shaft 1 to form an annular slot 7 with an outward opening,
the planet gear 3 is embedded and installed on the planet carrier 2 along the axial direction, and the planet gear 3 penetrates out of the outer annular surface and the inner annular surface of the planet carrier 2.
A circle of planet gears 3 are evenly arranged on the planet carrier 2 at intervals.
The outer electric drive mechanism is arranged at the periphery of the planetary gear 3 and meshed with the planetary gear 3.
The inner transmission mechanism is arranged in the annular slot 7 and meshed with the planetary gear 3.
Outer electric drive mechanism includes electric worm wheel 4 and driving motor 5, and electric worm wheel 4 cover is established outside planet carrier 2, and electric worm wheel 4 inner ring face is equipped with the interior flank of tooth 401 with the meshing of planetary gear 3, and driving motor 5 is used for controlling electric worm wheel 4 rotatory.
The driving motor 5 controls the electric worm gear 4 to rotate, thereby driving the planetary gear 3 to rotate.
An outer tooth face 402 is arranged on the outer annular surface of the electric worm wheel 4, the driving motor 5 is arranged beside the electric worm wheel 4, the output shaft of the driving motor 5 is tangent to the outer annular surface of the electric worm wheel 4, and a tooth trace 501 meshed with the outer tooth face 402 is arranged at the output end of the driving motor 5.
The inner transmission mechanism comprises a transmission shaft 6, the end part of the transmission shaft 6 is inserted into the annular slot 7, and the outer annular surface of the end part of the transmission shaft 6 is provided with a transmission gear 601 meshed with the planetary gear 3.
One end of the transmission shaft 6 is inserted into the annular slot 7 to be meshed with the planetary gear 3, and the other end of the transmission shaft is used for connecting other transmission mechanisms or driving mechanisms.
The main shaft 1 of the embodiment has an execution end 101 for connecting with an execution unit of an electric actuator, an action end 102 for inputting and controlling the action of the main shaft 1, and a planet gear 3 embedded in a planet carrier 2 fixed on the action end 102 of the main shaft 1, wherein the planet gear 3 is meshed with an external electric drive mechanism and an internal transmission mechanism; when the external electric drive mechanism acts, the planetary gear 3 is driven to rotate, and the planetary gear 3 can drive the planet carrier 2 to rotate because the internal transmission mechanism is in a locking state, so that the main shaft 1 rotates to transmit the action to the execution unit to perform valve opening and closing actions; similarly, when the internal transmission mechanism acts, the planet gear 3 can drive the planet carrier 2 to rotate; therefore, the automatic switching between two or more driving modes can be realized, 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. An electric drive unit for an electric actuator, comprising:
one end of the main shaft is provided with an execution end, and the other end of the main shaft is provided with an action end;
the planet carrier is sleeved and fixed at the action end, and the planet carrier and the main shaft are matched to form an annular slot with an outward opening;
the planet gear is embedded and installed on the planet carrier along the axial direction and penetrates through the outer ring surface and the inner ring surface of the planet carrier;
the outer electric driving mechanism is arranged at the periphery of the planetary gear and meshed with the planetary gear;
and the inner transmission mechanism is arranged in the annular slot and meshed with the planetary gear.
2. The electric drive unit of the electric actuator of claim 1, wherein the electro-mechanical drive mechanism comprises:
the electric worm gear is sleeved outside the planet carrier, and an inner ring surface of the electric worm gear is provided with an inner tooth surface meshed with the planet gear;
and the driving motor is used for controlling the electric worm gear to rotate.
3. The electric drive unit of the electric actuator according to claim 2, wherein the outer circumferential surface of the electric worm wheel is provided with an outer tooth surface, the drive motor is arranged beside the electric worm wheel, an output shaft of the drive motor is arranged tangentially to the outer circumferential surface of the electric worm wheel, and an output end of the drive motor is provided with a tooth trace meshed with the outer tooth surface.
4. The electric drive unit of the electric actuator according to claim 1, wherein the inner transmission mechanism includes a transmission shaft, an end of the transmission shaft is inserted into the annular insertion groove, and an outer circumferential surface of the end of the transmission shaft is provided with a transmission gear engaged with the planetary gear.
5. The electric drive unit of the electric actuator according to claim 1, wherein the actuating end of the main shaft is provided with an actuating gear.
6. The electric actuator drive unit according to any one of claims 1 to 5, wherein a ring of the planetary gears is arranged on the planetary carrier at regular intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120404086.XU CN214466504U (en) | 2021-02-23 | 2021-02-23 | Electric drive unit of electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120404086.XU CN214466504U (en) | 2021-02-23 | 2021-02-23 | Electric drive unit of electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466504U true CN214466504U (en) | 2021-10-22 |
Family
ID=78145146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120404086.XU Active CN214466504U (en) | 2021-02-23 | 2021-02-23 | Electric drive unit of electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466504U (en) |
-
2021
- 2021-02-23 CN CN202120404086.XU patent/CN214466504U/en active Active
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