Manually-operated and electrically-operated driving mechanism

Abstract

The utility model discloses a manually and electrically operated driving mechanism, and relates to the technical field of driving equipment. Comprising a shaft sleeve, an output shaft, an electric driving assembly and a manual driving assembly, the electric driving assembly and the manual driving assembly respectively drive the shaft sleeve to rotate to control the output shaft to rotate to output power, and the electric driving assembly comprises an electric worm wheel fixedly installed on the outer surface of the shaft sleeve; the manual driving assembly comprises a manual worm wheel rotationally installed on the outer surface of the shaft sleeve, and one side end faces of the electric worm wheel and the manual worm wheel are adjacent. Through the arrangement of the shaft sleeve, the electric worm gear, the manual worm gear and the like, the manual worm gear and the electric worm gear of the driving device are vertically installed on the surface of the shaft sleeve, so that the driving device directly drives the manual worm gear and the electric worm gear through the worm, and the mode has relatively low limitation on installation conditions of the worm gears; the number of connecting parts can be relatively reduced, and the precision requirement for connection of all the parts is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of driving equipment, in particular to a manual and electric operated driving mechanism. Background Art

[0002] The valve drive is a device used to control the opening and closing of a valve or adjust the valve position. It is usually composed of electric, pneumatic, hydraulic or manual drive devices, and can be remotely controlled or automatically operated in conjunction with an automatic control system as needed.

[0003] A fully automatic switching mechanism for manual and electric operation of an electric actuator with application number 201210350442.X discloses a driving device capable of switching between manual and electric operation, wherein the device realizes free switching between manual and electric operation through the connection and cooperation of planetary gears;

[0004] However, the above device uses an internal gear as a manually driven connecting piece, and uses the external teeth of the internal gear as a worm gear to drive the planetary gear. Under this condition, the planetary carrier is installed on the surface of the middle shaft, which requires precise connection between the planetary gear, the middle shaft of the drive device and the internal gear. This method also requires that the manual worm has a relatively ample use space, so the size of the drive device is relatively large.

[0005] In view of this situation, the utility model proposes a novel solution. Utility Model Content

[0006] The purpose of the utility model is to provide a manual and electric driving mechanism to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a manual and electric driving mechanism, comprising:

[0008] Bushings, output shafts, electric drive assemblies, and manual drive assemblies;

[0009] The electric drive assembly and the manual drive assembly respectively drive the shaft sleeve to rotate and control the output shaft to rotate and output power;

[0010] The electric drive assembly includes an electric worm gear fixedly mounted on the outer surface of the shaft sleeve, and the manual drive assembly includes a manual worm gear rotatably mounted on the outer surface of the shaft sleeve. One side end faces of the electric worm gear and the manual worm gear are adjacent.

[0011] Further regarding this solution, one end of the sleeve close to the output shaft is connected to the output shaft through a plurality of planetary gears, the electric drive component electrically drives the planetary gears to rotate around their own axes to control the output power of the output shaft, and the manual drive component manually drives the planetary gears to revolve around the sleeve and rotate around their own axes to control the output power of the output shaft.

[0012] Further to this solution, a plurality of right-angled stepped surfaces are arranged on the inner side of the output shaft, and the planetary gear is mounted on a plane of one of the right-angled stepped surfaces;

[0013] One side of the right-angled ladder surface where the planetary gear is located is provided with teeth, and the outer surface of the sleeve located at the planetary gear is also provided with teeth. The planetary gear is meshed with the teeth on the output shaft and the teeth on the sleeve respectively.

[0014] Further to this solution, the electric drive assembly also includes an electric worm wheel fixedly mounted on the outer surface of the sleeve, the electric worm wheel is meshingly connected to an electric worm, and the electric worm outputs power to control the rotation of the sleeve.

[0015] Further regarding this scheme, the manual drive assembly includes a manual worm gear rotating on the surface of the sleeve, the manual worm gear is meshingly connected with a manual worm, and a connecting frame is installed on the end face of the manual worm gear close to the output shaft, and a plurality of planetary shafts corresponding to the number of planetary gears are installed on the connecting frame, the planetary shafts are rotatably connected to the middle part of the planetary gears, and the inner side of the connecting frame and the outer surface of the sleeve are connected in three phases through bearings.

[0016] Further to this solution, the sleeve is rotatably connected to the output shaft, an upper cover is installed at one end of the sleeve away from the output shaft, and a flange is installed at one end of the output shaft away from the sleeve.

[0017] Further to this solution, the flange is connected to the output shaft via bearing 2, and bearing 1 is also installed on one of the stepped surfaces of the output shaft, and bearing 1 connects the output shaft and the sleeve.

[0018] Further to this solution, a bushing is provided on the inner side surface of the manual worm gear close to the shaft sleeve, and the bushing connects the manual worm gear and the shaft sleeve.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The manual and electric operation driving mechanism is provided with a shaft sleeve, an electric worm gear and a manual worm gear, etc. The manual worm gear and the electric worm gear of the driving device are installed on the surface of the shaft sleeve up and down. Therefore, the driving device directly drives the manual worm gear and the electric worm gear through the worm. This method has relatively low restrictions on the installation conditions of the worm gear, can relatively reduce the number of connecting parts, and reduce the precision requirements for the connection between the parts;

[0021] At the same time, this method reduces the lateral space requirements of the drive device, and the specific cost is that the lateral space occupied is smaller, which can reduce the size of the equipment and control the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0023] In the figure: 1. upper cover; 2. bushing; 3. electric worm wheel; 4. electric worm; 5. planetary gear; 6. output shaft; 7. manual worm; 8. manual worm wheel; 9. planetary shaft; 10. flange; 11. connecting frame; 12. bushing; 13. bearing 1; 14. bearing 2; 15. bearing 3; 16. key; 17. thread nesting. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be understood that the manual and electric drive mechanisms are Figure 1 As shown, it is mainly composed of a sleeve 2, a planetary gear 5, an output shaft 6, an electric drive component and a manual drive component, such as Figure 1 As shown, the output shaft 6 and the sleeve 2 are connected through a plurality of planetary gears 5, and the differential connection between the sleeve 2 and the output shaft 6 is realized through the planetary gears 5. The planetary gears 5 are electrically driven by the electric drive assembly to rotate around their own axes to control the output power of the output shaft 6. The planetary gears 5 are manually driven by the manual drive assembly to revolve around the sleeve 2 and rotate around their own axes to control the output power of the output shaft 6. Both manual and electric methods realize the rotation of the output shaft 6 to achieve power output by controlling the movement of the planetary gears 5.

[0026] like Figure 1 As shown, in order to ensure that this embodiment is the best embodiment, it is necessary to know that a plurality of right-angled stepped surfaces are arranged on the inner side of the output shaft 6, and the planetary gear 5 is installed on the plane of one of the right-angled stepped surfaces. One side of the right-angled stepped surface where the planetary gear 5 is located is provided with teeth, and the outer surface of the sleeve 2 located at the planetary gear 5 is also provided with teeth. The planetary gear 5 is respectively meshed with the teeth on the output shaft 6 and the teeth on the sleeve 2. Therefore, the planetary gear 5, as a connecting member, connects the output shaft 6 and the sleeve 2 through gear transmission.

[0027] To ensure that this embodiment is the best embodiment, it is necessary to know that the electric drive assembly also includes an electric worm gear 3 fixedly mounted on the outer surface of the sleeve 2, a tooth nest 17 is fixed on one end of the sleeve 2 close to the upper cover 1, a key 16 is provided between the tooth nest 17 and the sleeve 2 to fix the electric turbine 3, the key connection method is efficient and stable, the electric worm gear 3 is meshedly connected with an electric worm 4, the electric worm 4 outputs power to control the rotation of the sleeve 2, the manual drive assembly includes a manual worm gear 8 rotating on the surface of the sleeve 2, the manual worm gear 8 is meshedly connected with a manual worm 7, the end face of the manual worm gear 8 close to the output shaft 6 is installed with a connecting frame 11, a number of planetary shafts 9 corresponding to the number of planetary gears 5 are installed on the connecting frame 11, the planetary shafts 9 are rotatably connected to the middle part of the planetary gear 5, under the support of this structure, the condition for the planetary shafts 9 to revolve around the sleeve 2 is controlled by the connecting frame 11, when the connecting frame 11 rotates, the planetary shafts 9 rotate around the sleeve 2, and when driven by electricity, the electric worm 4 is driven by electricity to rotate. The planetary gear 5 is driven by the connecting frame 11 to revolve around the shaft sleeve 2, and the planetary gear 5 is also driven by the connecting frame 11 to revolve around the shaft sleeve 2.

[0028] like Figure 1 As shown, to ensure that this embodiment is the best embodiment, it is necessary to know that the sleeve 2 is rotatably connected to the output shaft 6, an upper cover 1 is installed at one end of the sleeve 2 away from the output shaft 6, and a flange 10 is installed at one end of the output shaft 6 away from the sleeve 2.

[0029] like Figure 1 As shown, in order to ensure that this embodiment is the best embodiment, it is necessary to know that the flange 10 is connected to the output shaft 6 through the bearing 2 14, and a bearing 13 is also installed on one of the step surfaces of the output shaft 6. The bearing 13 connects the output shaft 6 and the sleeve 2. Through the connection between the bearing 13 and the bearing 2 14, the smooth connection between the components is guaranteed, providing excellent conditions for the rotation of the components.

[0030] To ensure that this embodiment is the best embodiment, it is necessary to know that a bushing 12 is provided on the inner side of the manual worm gear 8 close to the sleeve 2. The bushing 12 connects the manual worm gear 8 and the sleeve 2 to reduce friction and wear through relative movement between the surfaces. It is also used for sealing and preventing wear, reducing vibration and noise of the equipment. The inner side of the connecting frame 11 is connected to the outer surface of the sleeve 2 through bearing three 15 to ensure smooth rotation.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A manual and electric drive mechanism, characterized in that: include: A shaft sleeve (2), an output shaft (6), an electric drive assembly and a manual drive assembly; The electric drive assembly and the manual drive assembly respectively drive the shaft sleeve (2) to rotate and control the output shaft (6) to rotate and output power; The electric drive assembly comprises an electric worm gear (3) fixedly mounted on the outer surface of the shaft sleeve (2), and the manual drive assembly comprises a manual worm gear (8) rotatably mounted on the outer surface of the shaft sleeve (2), with one end surface of the electric worm gear (3) and the manual worm gear (8) being adjacent to each other.

2. A manually and electrically operated drive mechanism according to claim 1, characterized in that: One end of the shaft sleeve (2) close to the output shaft (6) is connected to the output shaft (6) via a plurality of planetary gears (5); the electric drive assembly electrically drives the planetary gears (5) to rotate around their own axes to control the output shaft (6) to output power; the manual drive assembly manually drives the planetary gears (5) to revolve around the shaft sleeve (2) and simultaneously rotate around their own axes to control the output shaft (6) to output power.

3. A manually and electrically operated drive mechanism according to claim 1, characterized in that: The inner side of the output shaft (6) is provided with a plurality of right-angled stepped surfaces, and the planetary gear (5) is mounted on a plane of one of the right-angled stepped surfaces; One side of the right-angled stepped surface where the planetary gear (5) is located is provided with teeth, and the outer surface of the shaft sleeve (2) located at the planetary gear (5) is also provided with teeth, and the planetary gear (5) is respectively meshed with the teeth on the output shaft (6) and the teeth on the shaft sleeve (2).

4. A manually and electrically operated drive mechanism according to claim 1, characterized in that: The electric drive assembly further comprises an electric worm wheel (3) fixedly mounted on the outer surface of the shaft sleeve (2); the electric worm wheel (3) is meshingly connected to an electric worm (4); the electric worm (4) outputs power to control the rotation of the shaft sleeve (2).

5. A manually and electrically operated drive mechanism according to claim 1, characterized in that: The manual drive assembly comprises a manual worm wheel (8) rotating on the surface of the shaft sleeve (2), the manual worm wheel (8) being meshingly connected with a manual worm (7), a connecting frame (11) being installed on the end surface of the manual worm wheel (8) close to the output shaft (6), a plurality of planetary shafts (9) corresponding to the number of planetary gears (5) being installed on the connecting frame (11), the planetary shafts (9) being rotatably connected to the middle of the planetary gears (5), and the inner side of the connecting frame (11) being connected to the outer surface of the shaft sleeve (2) via a bearing three (15).

6. A manually and electrically operated drive mechanism according to claim 1, characterized in that: The shaft sleeve (2) is rotatably connected to the output shaft (6); an upper cover (1) is mounted on one end of the shaft sleeve (2) away from the output shaft (6); and a flange (10) is mounted on one end of the output shaft (6) away from the shaft sleeve (2).

7. A manually and electrically operated drive mechanism according to claim 6, characterized in that: The flange (10) and the output shaft (6) are connected via a second bearing (14); a first bearing (13) is also mounted on one of the stepped surfaces of the output shaft (6); the first bearing (13) connects the output shaft (6) and the shaft sleeve (2).

8. A manually and electrically operated drive mechanism according to claim 5, characterized in that: A bushing (12) is provided on the inner side surface of the manual worm gear (8) close to the shaft sleeve (2), and the bushing (12) connects the manual worm gear (8) and the shaft sleeve (2).

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