Electric actuator with hand-operating mechanism

Abstract

The utility model relates to an electric actuator with a hand-operating mechanism, which is characterized by comprising an actuator body, a mounting seat is arranged on one side of the actuator body, the hand-operating mechanism is arranged in the mounting seat, the hand-operating mechanism comprises a hand-operating shaft and a hand-operating gear arranged on the inner side of the hand-operating shaft, and the hand-operating gear is arranged on the inner side of the hand-operating shaft. The manual gear is in linkage with a large gear in the actuator body, the outer end face of the manual shaft is flush with the outer end face of the installation base, an operation hole connected with an operation piece is formed in the manual shaft, and the operation hole is concaved inwards from the outer end face of the manual shaft. Due to the fact that the outer end face of the manual shaft is flush with the outer end face of the installation base, and the mode that the manual shaft is directly connected with a hand wheel is omitted, the risk of misoperation of a manual mechanism caused by the fact that an operator touches the manual mechanism carelessly when the electric actuator works can be avoided. By means of the design, the safety and reliability of the electric actuator are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric actuator technical field especially relates to a kind of electric actuator with manual mechanism. BACKGROUND

[0002] In the field of mechanical engineering, electrical engineering and automation control, electric actuator is an important equipment, it is converted into mechanical energy by electric energy, realizes the control of various mechanical movements.Electric actuator is usually composed of actuator body and control mechanism, wherein control mechanism can include manual mechanism and electric mechanism.Manual mechanism can manually operate actuator body in power failure or other conditions, realizes the control of mechanical movement.

[0003] The existing electric actuator usually adopts the combination of manual mechanism and electric mechanism, wherein manual mechanism usually includes manual shaft and manual gear, and the manual gear is linked with the large gear inside the actuator body.

[0004] The existing electric actuator has some problems in transportation and use. First, because the manual shaft is connected with hand wheel or handle, the overall volume of electric actuator is large, and the space is large, which is not convenient for transportation. Secondly, in the actual operation process of the existing electric actuator, the hand wheel will cause misoperation.

[0005] Therefore, the existing electric actuator has certain limitations in transportation and use, and needs to be further improved. SUMMARY

[0006] The utility model aims at providing a kind of electric actuator with manual mechanism to solve the above technical problems.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] An electric actuator with manual mechanism, characterized in that it comprises an actuator body, a mounting seat is provided on one side of the actuator body, a manual mechanism is provided in the mounting seat, the manual mechanism includes a manual shaft and a manual gear provided inside the manual shaft, the manual gear is linked with a large gear inside the actuator body, the outer end surface of the manual shaft is flush with the outer end surface of the mounting seat, an operating hole connected with an operating member is provided in the manual shaft, and the operating hole is recessed from the outer end surface of the manual shaft.

[0009] The utility model further provides that a positioning block is provided in the actuator body, the positioning block is located on one side of the large gear, a groove is formed in one end of the positioning block facing the manual shaft, and a shaft sleeve is provided on the part of the manual shaft located in the groove.

[0010] The utility model further sets up, the manual gear is located close to the one side of axle sleeve, manual gear and axle sleeve between being provided with plane bearing.

[0011] The utility model further sets up, manual gear with big gear between being provided with transmission assembly, manual gear passes through transmission assembly and big gear linkage.

[0012] The utility model further sets up, first sealing ring is provided between the mounting seat and the actuator body, second sealing ring is provided between the mounting seat and manual shaft.

[0013] The utility model further sets up, ball bearing is provided between manual shaft and the mounting seat.

[0014] The utility model further sets up, transmission assembly includes fixed shaft, first gear with manual gear engagement and second gear with big gear engagement, fixed shaft sets up in the actuator body, and first gear and second gear are located at different heights.

[0015] The utility model further sets up, manual gear and first gear are all helical gears.

[0016] The utility model further sets up, ball bearing is one-way thrust ball bearing.

[0017] The utility model further sets up, operating part is handle, rocker or operating rod, it has with operating hole adaptation's connecting portion.

[0018] The utility model has the advantages of:

[0019] 1, save space: the outer end surface of manual shaft of the utility model and the outer end surface of mounting seat are flush, use operating part as accessory, only when needing manual operation, operating part is connected with manual shaft, therefore, space occupation is small, convenient transportation and save transportation cost.

[0020] 2, avoid misoperation: because the outer end surface of manual shaft of the utility model and the outer end surface of mounting seat are flush, and cancel the mode of directly connecting hand wheel, then can avoid the risk of manual mechanism misoperation caused by operator accidentally touching when electric actuator works.

[0021] 3. Improve the linkage effect: the manual gear and the large gear inside the actuator body are provided with a transmission assembly, the manual gear is linked with the large gear through the transmission assembly, this design improves the linkage effect of the manual mechanism and the actuator body, and makes the manual operation more smooth. Compared with the prior art, the control performance of the electric actuator is improved.

[0022] 4. Improve the sealing performance: the first sealing ring is arranged between the mounting seat and the actuator body, and the ball bearing is arranged between the manual shaft and the mounting seat, which improves the sealing performance of the electric actuator, prevents dust and moisture from entering, and prolongs the service life of the electric actuator. Compared with the prior art, the durability and maintainability of the electric actuator are improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0024] Fig. 1 It is a structural schematic view of the embodiment of the present application.

[0025] Fig. 2 It is a perspective view of the transmission assembly of the embodiment of the present application.

[0026] Fig. 10, actuator body; 20, mounting seat; 30, manual shaft; 40, manual gear; 50, large gear; 60, operation hole; 70, positioning block; 80, groove; 90, shaft sleeve; 100, plane bearing; 110, fixed shaft; 120, first gear; 130, second gear; 140, first sealing ring; 150, ball bearing; 160, second sealing ring; DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below with the help of the drawings and examples, so that the realization process of the present application can be fully understood and implemented by applying technical means to solve technical problems and achieve technical effects.

[0028] As shown in Figs. 1-2 The utility model discloses an electric actuator with manual mechanism, including actuator body 10, the one side of actuator body 10 is provided with mounting seat 20, and mounting seat 20 is fixed on the one side of actuator body 10 through fastener.

[0029] The manual mechanism is arranged in the mounting base 20, and the manual mechanism comprises a manual shaft 30 and a manual gear 40 arranged inside the manual shaft 30, the manual gear 40 is connected with a large gear 50 inside the actuator body 10, the outer end surface of the manual shaft 30 is flush with the outer end surface of the mounting base 20, an operation hole 60 connected with an operation member is arranged in the manual shaft 30 and recessed from the outer end surface of the manual shaft 30, the operation member is a handle, a rocker or an operation rod, and the operation hole 60 is adapted to the connection part of the operation member, a positioning block 70 is arranged in the actuator body 10, the positioning block 70 is located on one side of the large gear 50, a groove 80 is formed in one end of the positioning block 70 facing the manual shaft 30, and one end of the manual shaft 30 is located in the groove 80 and the part in the groove 80 is sleeved with a shaft sleeve 90.

[0030] The outer end surface of the manual shaft 30 is flush with the outer end surface of the mounting base 20, the operation member is used as an accessory, and the operation member is connected with the manual shaft 30 only when manual operation is needed, so that the space occupation is small, transportation is facilitated and transportation cost is saved.

[0031] The manual gear 40 is located on one side close to the shaft sleeve 90, and a plane bearing 100 is arranged between the manual gear 40 and the shaft sleeve 90.

[0032] The manual gear 40 is connected with the large gear 50 through the transmission assembly, the manual gear 40 and the first gear 120 are both helical gears, and the manual gear 40 and the second gear 130 are both spur gears. The manual gear 40 is connected with the large gear 50 through the transmission assembly, the manual gear 40 and the first gear 120 are both helical gears, and the manual gear 40 and the second gear 130 are both spur gears.

[0033] In addition, a first sealing ring 140 is arranged between the mounting seat 20 and the actuator body 10, and a second sealing ring 160 is arranged between the mounting seat 20 and the manual shaft 30. A ball bearing 150 is arranged between the manual shaft 30 and the mounting seat 20. The ball bearing 150 is a one-way thrust ball bearing 150. The mounting seat 20 and the actuator body 10 of the utility model are provided with the first sealing ring 140, and the manual shaft 30 and the mounting seat 20 are provided with the ball bearing 150, which improves the sealing performance of the electric actuator, prevents dust and moisture from entering, and prolongs the service life of the electric actuator. Compared with the prior art, the design improves the durability and maintainability of the electric actuator.

[0034] As used in the specification and claims, certain terminology is used to refer to certain components. Those of ordinary skill in the art will appreciate that different manufacturers can refer to the same component using different terminology. The specification and claims do not serve as a means to distinguish components based on the names used to refer to them, but rather serve as a means to distinguish components based on their functional differences. As used throughout the specification and claims, "comprising" is a transitive word, meaning "including," but not limited to, and therefore specifies the presence of stated features but not to the exclusion of others. "Substantially" means within acceptable manufacturing tolerances, and those of ordinary skill in the art will recognize that the technical problem can be solved within a certain error range, and the technical effect can be substantially achieved.

[0035] It should be noted that the terms "comprising," "including," and any other variation thereof are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process or method. Without more limitations, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process or system comprising the element.

[0036] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention disclosed herein by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the utility model shall be within the protection scope of the claims of the utility model.

Claims

1. An electric actuator with a manual mechanism, characterized in that, The actuator body is provided with a mounting seat on one side, the mounting seat is provided with a manual mechanism, the manual mechanism comprises a manual shaft and a manual gear provided inside the manual shaft, the manual gear is linked with a large gear inside the actuator body, the outer end surface of the manual shaft is flush with the outer end surface of the mounting seat, the manual shaft is provided with an operation hole connected with an operating member, and the operation hole is recessed inward from the outer end surface of the manual shaft.

2. An electric actuator with a manual mechanism according to claim 1, characterized in that, The actuator body is provided with a positioning block on one side of the large gear, the positioning block is formed with a groove towards one end of the manual shaft, and the one end of the manual shaft is located in the groove and the part in the groove is sleeved with a shaft sleeve.

3. An electric actuator with a manual mechanism according to claim 2, characterized in that, The manual gear is located on one side close to the shaft sleeve, and a plane bearing is arranged between the manual gear and the shaft sleeve.

4. The electric actuator with a manual mechanism according to claim 1, characterized in that, The manual gear is linked with the large gear through a transmission assembly.

5. The electric actuator with manual mechanism according to claim 1, characterized in that, A first sealing ring is arranged between the mounting seat and the actuator body, and a second sealing ring is arranged between the mounting seat and the manual shaft.

6. The electric actuator with a manual mechanism according to claim 1, characterized in that, A ball bearing is arranged between the manual shaft and the mounting seat.

7. The electric actuator with a manual mechanism according to claim 4, characterized in that, The transmission assembly comprises a fixed shaft, a first gear engaged with the manual gear and a second gear engaged with the large gear, the fixed shaft is arranged in the actuator body, and the first gear and the second gear are located at different heights.

8. An electric actuator with a manual mechanism according to claim 7, characterized in that, The manual gear and the first gear are both helical gears.

9. The electric actuator with a manual mechanism according to claim 6, characterized in that, The ball bearing is a one-way thrust ball bearing.

10. The electric actuator with a manual mechanism according to claim 1, characterized in that, The operating member is a handle, a rocker or an operating rod, which has a connecting part matched with the operation hole. The actuator body is provided with a mounting seat on one side, the mounting seat is provided with a manual mechanism, the manual mechanism comprises a manual shaft and a manual gear provided inside the manual shaft, the manual gear is linked with a large gear inside the actuator body, the outer end surface of the manual shaft is flush with the outer end surface of the mounting seat, the manual shaft is provided with an operation hole connected with an operating member, and the operation hole is recessed inward from the outer end surface of the manual shaft. The actuator body is provided with a positioning block on one side of the large gear, the positioning block is formed with a groove towards one end of the manual shaft, and the one end of the manual shaft is located in the groove and the part in the groove is sleeved with a shaft sleeve. The manual gear is located on one side close to the shaft sleeve, and a plane bearing is arranged between the manual gear and the shaft sleeve. The manual gear is linked with the large gear through a transmission assembly. A first sealing ring is arranged between the mounting seat and the actuator body, and a second sealing ring is arranged between the mounting seat and the manual shaft. A ball bearing is arranged between the manual shaft and the mounting seat. The transmission assembly comprises a fixed shaft, a first gear engaged with the manual gear and a second gear engaged with the large gear, the fixed shaft is arranged in the actuator body, and the first gear and the second gear are located at different heights. The manual gear and the first gear are both helical gears. The ball bearing is a one-way thrust ball bearing. The operating member is a handle, a rocker or an operating rod, which has a connecting part matched with the operation hole.

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