Electric actuating mechanism

Abstract

The utility model discloses an electric actuating mechanism which comprises an upper shell and a lower shell which are arranged in a spliced mode, a middle partition plate is further clamped in the lower shell, a multi-stage transmission assembly is arranged in the lower shell in a connected mode, and the multi-stage transmission assembly comprises at least one output end and one input end. A first shaft hole and a second shaft hole matched with the output end and the input end are formed in the upper shell, and a plurality of openings corresponding to each other in position are formed in the middle partition plate matched with the multi-stage transmission assembly. Compared with the prior art, the electric actuating mechanism has the advantages of being convenient to operate and use and capable of providing a power input mode according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of power, and specifically refers to an electric actuator. Background Art

[0002] An electric actuator, also known as an electrical executing fitting, is a commonly used valve driving device in industrial automatic control systems. It is widely used in the automatic control systems of production processes in industries such as petrochemical, natural gas, metallurgical smelting, electric power, paper making, steel, cement, and municipal environmental protection to meet the increasingly high automation control requirements of industrial production.

[0003] An electric actuator uses an electric motor as the driving source and a direct current as the control and feedback signal. When the existing electric actuator is in use, the internal space utilization is not reasonable enough, resulting in poor stability, and at the same time, the power input is relatively single. Content of the Utility Model

[0004] (1) Problems to be Solved

[0005] The technical problem to be solved by the utility model is to overcome the above technical defects and provide an electric actuator that is convenient to operate and use and can provide power input modes according to needs.

[0006] (2) Technical Solutions

[0007] To solve the above technical problem, the technical solution provided by the utility model is: an electric actuator, including an upper housing and a lower housing that are assembled, a middle partition is also clamped in the lower housing, a multi-stage transmission assembly is connected in the lower housing, and the multi-stage transmission assembly includes at least one output end and one input end;

[0008] A first shaft hole and a second shaft hole are opened on the upper housing to cooperate with the output end and the input end, and a plurality of openings corresponding to the positions of the multi-stage transmission assembly are opened on the middle partition.

[0009] As an improvement, the multi-stage transmission assembly includes a first-stage transmission gear, a second-stage transmission gear, a third-stage transmission gear, a fourth-stage transmission gear, a fifth-stage transmission gear, and a sixth-stage transmission gear. Shaft rods are sleeved on the axles of the first-stage transmission gear, the second-stage transmission gear, the third-stage transmission gear, the fourth-stage transmission gear, and the fifth-stage transmission gear;

[0010] The first-stage transmission gear, the second-stage transmission gear, the third-stage transmission gear, the fourth-stage transmission gear, and the fifth-stage transmission gear are all double-layer gears, and each includes a large gear and a small gear that are stacked;

[0011] The six - stage transmission gear is the output end. A pressure ring is sleeved on the upper end of the six - stage transmission gear. An upper cover plate is rotatably arranged in the second shaft hole. A linkage rod that sequentially penetrates through the centers of the pressure ring and the upper cover plate is sleeved on the upper end of the six - stage transmission gear.

[0012] As an improvement, the small gear of the first - stage transmission gear meshes with the large gear of the second - stage transmission gear. The small gear of the second - stage transmission gear meshes with the large gear of the third - stage transmission gear. The small gear of the third - stage transmission gear meshes with the large gear of the fourth - stage transmission gear. The small gear of the fourth - stage transmission gear meshes with the large gear of the fifth - stage transmission gear. The small gear of the fifth - stage transmission gear meshes with the six - stage transmission gear.

[0013] As an improvement, the first - stage transmission gear is the input end. The end of the shaft rod of the first - stage transmission gear penetrates through the middle partition and is connected with a driving motor.

[0014] As an improvement, the second - stage transmission gear is the input end. The end of the shaft rod of the second - stage transmission gear penetrates through the middle partition and is connected with a transmission rod. The top of the transmission rod penetrates through the first shaft hole.

[0015] As an improvement, a central hole is concavely arranged at the inner bottom end of the lower shell body to fit the center of the six - stage transmission gear. Also, rod grooves are convexly arranged to fit multiple shaft rods.

[0016] (III) Beneficial Effects

[0017] The advantages of the present utility model compared with the prior art are as follows: In this application, by improving the structures of the upper shell body and the lower shell body, the additionally opened first shaft hole provides a manual operation method. Using electricity or manual as the power input source, the special adaptability of equipment use is greatly improved, which is convenient for use in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an electric actuator.

[0019] Figure 2 is a schematic structural diagram of a second perspective of an electric actuator.

[0020] Figure 3 is a schematic structural diagram of the middle partition.

[0021] Figure 4 is a schematic structural diagram of the top view of the lower shell body.

[0022] Figure 5 is a schematic structural diagram of the cross - section of the upper shell body.

[0023] Figure 6 is a schematic structural diagram of the upper cover plate.

[0024] Figure 7It is a schematic diagram of the transmission structure when the multi-stage transmission component is in use.

[0025] Figure 8 It is a schematic diagram of the structure of the cross-section of the pressing ring.

[0026] As shown in the figure: 1. Upper housing; 2. Lower housing; 3. Intermediate partition; 4. First shaft hole; 5. Second shaft hole; 6. Opening; 7. First-stage transmission gear; 8. Second-stage transmission gear; 9. Third-stage transmission gear; 10. Fourth-stage transmission gear; 11. Fifth-stage transmission gear; 12. Sixth-stage transmission gear; 13. Pressing ring; 14. Axial center hole; 15. Rod groove; 16. Upper cover plate. Specific implementation mode

[0027] The following further illustrates the specific implementation mode of the present utility model with reference to the attached drawings. Among them, the same components are denoted by the same reference numerals.

[0028] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0029] It should be noted that when an element is referred to as being "fixedly provided on" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0030] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0031] In order to make the content of the present utility model easier to be clearly understood, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0032] Please refer specifically to the attached Figure 1-8 There is an electric actuator, which is characterized in that it includes an upper housing 1 and a lower housing 2 that are assembled together. A multi-stage transmission component is connected and arranged inside the lower housing 2. The multi-stage transmission component includes at least one output end and one input end. A first shaft hole 4 and a second shaft hole 5 are provided on the upper housing 1 to cooperate with the output end and the input end.

[0033] The multi-stage transmission assembly includes a first-stage transmission gear 7, a second-stage transmission gear 8, a third-stage transmission gear 9, a fourth-stage transmission gear 10, a fifth-stage transmission gear 11 and a sixth-stage transmission gear 12. Shaft rods are sleeved on the axles of the first-stage transmission gear 7, the second-stage transmission gear 8, the third-stage transmission gear 9, the fourth-stage transmission gear 10 and the fifth-stage transmission gear 11.

[0034] The first-stage transmission gear 7, the second-stage transmission gear 8, the third-stage transmission gear 9, the fourth-stage transmission gear 10 and the fifth-stage transmission gear 11 are all double-layer gears, each including a large gear and a small gear which are stacked.

[0035] The sixth-stage transmission gear 12 is the output end. A pressure ring 13 is sleeved on the upper end of the sixth-stage transmission gear 12. An upper cover plate 16 is rotatably arranged in the second shaft hole 5. A linkage rod that sequentially penetrates through the axles of the pressure ring 13 and the upper cover plate 16 is sleeved on the upper end of the sixth-stage transmission gear 12.

[0036] In one embodiment:

[0037] According to needs, two input ends can be set or a single input end can be set separately. When it is electrically driven, the first-stage transmission gear 7 is the input end, and the end of the shaft rod of the first-stage transmission gear 7 penetrates through the middle partition 3 and is connected with a drive motor.

[0038] When it is manually driven, the second-stage transmission gear 8 is the input end, and the end of the shaft rod of the second-stage transmission gear 8 penetrates through the middle partition 3 and is connected with a transmission rod, and the top of the transmission rod penetrates through the first shaft hole 4.

[0039] It is also possible to separately select to set a single input end, and select the first-stage transmission gear 7 or the second-stage transmission gear 8 as the input end.

[0040] During specific use:

[0041] The small gear of the first-stage transmission gear 7 is meshed with the large gear of the second-stage transmission gear 8, the small gear of the second-stage transmission gear 8 is meshed with the large gear of the third-stage transmission gear 9, the small gear of the third-stage transmission gear 9 is meshed with the large gear of the fourth-stage transmission gear 10, the small gear of the fourth-stage transmission gear 10 is meshed with the large gear of the fifth-stage transmission gear 11, and the small gear of the fifth-stage transmission gear 11 is meshed with the sixth-stage transmission gear 12.

[0042] For the convenience of stable output, an intermediate partition 3 is also clamped in the lower housing 2. Multiple openings 6 corresponding in position are formed in the intermediate partition 3 in cooperation with the multi-stage transmission assembly. The upper end of the pressure ring 13 is clamped with the corresponding opening 6 in the intermediate partition 3. At the same time, a central hole 14 is concavely provided at the bottom end in the lower housing 2 to cooperate with the axis of the six-stage transmission gear 12, and rod grooves 15 are convexly provided in cooperation with multiple shaft rods. The multiple shaft rods are respectively clamped into the rod grooves 15, and the six-stage transmission gear is sleeved in the central hole 14 through a bearing. In order to increase the rotational stability, a bearing can also be sleeved between the pressure ring 13 and the shaft core of the six-stage transmission gear.

[0043] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0044] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0045] The present invention and its implementation manners have been described above. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the gist of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. An electric actuator, characterized in that: It comprises an upper shell (1) and a lower shell (2) which are assembled together, wherein a middle partition (3) is also engaged in the lower shell (2), and a multi-stage transmission component is connected in the lower shell (2), and the multi-stage transmission component comprises at least one output end and one input end; The upper shell (1) is provided with a first shaft hole (4) and a second shaft hole (5) to match the output end and the input end, and the middle partition (3) is provided with a plurality of openings (6) arranged at corresponding positions to match the multi-stage transmission assembly.

2. An electric actuator according to claim 1, characterized in that: The multi-stage transmission assembly comprises a primary transmission gear (7), a secondary transmission gear (8), a tertiary transmission gear (9), a fourth transmission gear (10), a fifth transmission gear (11) and a sixth transmission gear (12), wherein the axes of the primary transmission gear (7), the secondary transmission gear (8), the tertiary transmission gear (9), the fourth transmission gear (10) and the fifth transmission gear (11) are all sleeved with shafts; The first-stage transmission gear (7), the second-stage transmission gear (8), the third-stage transmission gear (9), the fourth-stage transmission gear (10), and the fifth-stage transmission gear (11) are all double-layer gears, each comprising a large gear and a small gear that are stacked; The six-stage transmission gear (12) is the output end. The upper end of the six-stage transmission gear (12) is sleeved with a pressure ring (13). An upper cover plate (16) is rotatably arranged in the second shaft hole (5). The upper end of the six-stage transmission gear (12) is sleeved with a linkage rod which sequentially passes through the axis of the pressure ring (13) and the upper cover plate (16).

3. An electric actuator according to claim 2, characterized in that: The pinion of the primary transmission gear (7) is meshed with the large gear of the secondary transmission gear (8), the pinion of the secondary transmission gear (8) is meshed with the large gear of the tertiary transmission gear (9), the pinion of the tertiary transmission gear (9) is meshed with the large gear of the tertiary transmission gear (10), the pinion of the tertiary transmission gear (10) is meshed with the large gear of the tertiary transmission gear (11), and the pinion of the tertiary transmission gear (11) is meshed with the tertiary transmission gear (12).

4. The electric actuator according to claim 2, characterized in that: The first-stage transmission gear (7) is the input end, and the end of the shaft of the first-stage transmission gear (7) passes through the middle partition (3) and is connected to a driving motor.

5. The electric actuator according to claim 2, characterized in that: The secondary transmission gear (8) is the input end, and the end of the shaft of the secondary transmission gear (8) passes through the middle partition (3) and is connected to a transmission rod, and the top end of the transmission rod passes through the shaft hole one (4).

6. The electric actuator according to claim 2, characterized in that: The bottom end of the lower shell (2) is provided with an inner concave axis hole (14) to match the axis of the six-stage transmission gear (12), and is also provided with rod grooves (15) to match the plurality of shaft rods.

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