CN212056050U

CN212056050U - Novel electric actuator

Info

Publication number: CN212056050U
Application number: CN202020181463.3U
Authority: CN
Inventors: 吴福全
Original assignee: Guangzhou Fules Valve Technology Co ltd
Current assignee: Guangzhou Fules Valve Technology Co ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-12-01
Anticipated expiration: 2030-02-18

Abstract

The utility model relates to a novel electric actuator, including the case seat, including a motor, an end cap, a controller, and a cover plate, the gear assembly, fan-shaped tooth, output shaft and micro-gap switch, install the motor in the case seat, the output of motor is connected with the input gear transmission of gear assembly, the output gear and the fan-shaped tooth meshing of gear assembly, the middle part fixed connection of fan-shaped tooth and output shaft, the top lid of case seat has closed the upper cover, indicating device is installed to the upper end of output shaft, the middle part top of output shaft is fixed with two dogs, be provided with two sets of micro-gap switch on the inner wall of upper cover, the coaxial manual drive shaft that is provided with on the intermediate gear of gear assembly, the top face of manual drive shaft is provided with interior hexagonal hole. The utility model has the advantages that: through set up manual drive axle on the intermediate gear at the gear assembly, when having a power failure, drive gear assembly through manual drive axle and rotate, and then drive fan-shaped tooth and rotate, realize adjusting the aperture of valve when having a power failure state.

Description

Novel electric actuator

Technical Field

The utility model relates to the technical field of valves, especially a novel electric actuator.

Background

The actuator is an essential important component of an automatic control system. It is used to receive the control signal from the controller and change the size of the controlled medium to maintain the controlled variable at the required value or in certain range. The actuators can be classified into pneumatic, hydraulic and electric according to their energy forms.

In the electric valve, an electric actuator is used for controlling the opening of the valve, and a valve rod is driven to rotate by a motor in ordinary use, so that the opening of the valve is adjusted. However, when power failure occurs, the valve with the electric actuator cannot adjust the opening degree. In addition, the existing electric actuator and the valve rod adopt two gears for direct meshing transmission, so that the occupied space of the gears is overlarge, and the electric actuator is large in size.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a novel electric actuator.

The purpose of the utility model is realized through the following technical scheme:

a novel electric actuator comprises a box seat, a motor, a gear assembly, sector teeth, an output shaft and a microswitch, a motor is arranged in the box seat, the output end of the motor is in transmission connection with an input gear of the gear assembly, the output gear of the gear assembly is meshed with the sector gear which is fixedly connected with the middle part of the output shaft, an upper cover is covered above the box seat, an indicating device is arranged at the upper end of the output shaft, two stop blocks are fixed above the middle part of the output shaft, two groups of micro switches which are symmetrical about the output shaft are arranged on the inner wall of the upper cover, the stop block can trigger the micro switches on the same side of the stop block, the manual driving shaft is coaxially arranged on the intermediate gear of the gear assembly, the top end face of the manual driving shaft is provided with an inner hexagonal hole, and the upper cover is provided with a through hole which is aligned with the inner hexagonal hole up and down.

Further, the upper end of the output shaft penetrates through the upper cover, and the indicating device is located above the upper cover.

Further, the gear assembly includes input gear, first gear wheel, first pinion, second gear wheel, second pinion, third gear wheel, third pinion, fourth gear wheel, fourth pinion, fifth gear wheel and fifth pinion, input gear and the output fixed connection of motor, input gear and first gear wheel meshing, first gear wheel and first pinion formula structure as an organic whole, first pinion and second gear wheel meshing, second gear wheel and second pinion formula structure as an organic whole, second pinion and third gear wheel meshing, third gear wheel and third pinion formula structure as an organic whole, third pinion and fourth gear wheel meshing, fourth gear wheel and fourth pinion formula structure as an organic whole, fourth pinion and fifth gear wheel meshing, fifth gear wheel and fifth pinion formula structure as an organic whole, the fifth pinion gear is meshed with the sector gear.

Further, the manual driving shaft is coaxially arranged on the third gearwheel.

Furthermore, the included angle between the two side edges of the sector-shaped teeth is 70-90 degrees.

Furthermore, a buckle is fixed on the lower surface of the box base, and an inner hexagonal wrench matched with the inner hexagonal hole is connected in the buckle in a clamping manner.

Further, install two adjustable stop nut on the lateral wall of case seat, adjustable stop nut can with the side butt that fan-shaped tooth corresponds.

Further, still be provided with waterproof cover on the top surface of upper cover, waterproof cover joint cooperation is installed in the through-hole.

Furthermore, a wiring lock head convenient for wiring is further arranged on the side wall of the box seat.

Furthermore, a sleeve cover capable of being connected with the valve body is further arranged on the bottom surface of the box seat, and the sleeve cover is coaxial with the output shaft.

The utility model has the advantages of it is following:

1. the utility model discloses a set up manual drive axle on the intermediate gear of gear assembly, when having a power failure, rotate through manual drive axle drive gear assembly, and then drive fan-shaped tooth and rotate, realize adjusting the aperture of valve when the power failure state.

2. The utility model discloses a gear assembly sets up between motor and fan-shaped tooth, can effectively reduce electric actuator's occupation space, and is small.

3. When the electric actuator is powered on, the flow can be adjusted by using the electric control switch, and when the electric actuator is not powered on, the flow can be adjusted by using the manual control switch and the flow, and the electric actuator can be connected with an intelligent module for control, so that the intelligent switch of the valve and the automatic flow adjustment can be realized.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a schematic bottom view of the present invention;

fig. 4 is a schematic view of the internal structure of the present invention;

fig. 5 is a schematic diagram of the internal structure of the present invention;

FIG. 6 is a view showing the arrangement of the gear assembly and the sector gear according to the present invention;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a bottom view of FIG. 6;

in the figure: 1-box base, 2-upper cover, 3-sleeve cover, 4-motor, 5-gear assembly, 5 a-input gear, 5 b-first big gear, 5 c-first small gear, 5 d-second big gear, 5 e-second small gear, 5 f-third big gear, 5 g-third small gear, 5 h-fourth big gear, 5 i-fourth small gear, 5 j-fifth big gear, 5 k-fifth small gear, 6-sector gear, 7-output shaft, 8-baffle, 9-microswitch, 10-manual driving shaft, 11-hexagon socket, 12-indicating device, 13-adjustable limit nut, 14-wiring lock, 15-waterproof cover, 16-buckle, 17-hexagon socket wrench.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1 to 5, a novel electric actuator comprises a box base 1, a motor 4, a gear assembly 5, a sector gear 6, an output shaft 7 and a micro switch 9, wherein the motor 4 is installed in the box base 1, the motor 4 can be selected as a stepping motor, the output end of the motor 4 is in transmission connection with an input gear 5a of the gear assembly 5, an output gear of the gear assembly 5 is meshed with the sector gear 6, the sector gear 6 is fixedly connected with the middle part of the output shaft 7, an upper cover 2 is covered above the box base 1, the upper cover 2 is fixed on the box base 1 through screws, an indicating device 12 is installed at the upper end of the output shaft 7, the indicating device 12 comprises a rotating part fixed at the upper end of the output shaft 7 and a transparent cover arranged on the upper cover 2, when the output shaft 7 rotates, the rotating part is driven to rotate, and the rotating angle of the rotating part can, so that the opening degree of the valve can be visually observed, two stop blocks 8 are fixed above the middle part of the output shaft 7, two groups of micro switches 9 which are axially symmetrical about the output shaft 7 are arranged on the inner wall of the upper cover 2, the stop block 8 can trigger the micro switch 9 on the same side of the stop block, when the stop block 8 triggers the micro switch 9 on the side, a signal is given, thereby controlling the state of the motor 4, including start, stop and direction of rotation of the motor 4, a manual driving shaft 10 is coaxially arranged on a middle gear of the gear assembly 5, a hexagon socket 11 is arranged on the top end face of the manual driving shaft 10, a through hole which is aligned with the hexagon socket 11 up and down is arranged on the upper cover 2, when power is off, the inner hexagonal wrench 17 penetrates through the through hole and extends into the inner hexagonal hole 11, and the opening degree of the valve can be adjusted by rotating the inner hexagonal wrench 17.

Further, as shown in fig. 1, the upper end of the output shaft 7 passes through the upper cover 2, and the indicating device 12 is located above the upper cover 2.

Further, as shown in fig. 6 to 8, the gear assembly 5 includes an input gear 5a, a first gearwheel 5b, a first pinion 5c, a second gearwheel 5d, a second pinion 5e, a third gearwheel 5f, a third pinion 5g, a fourth gearwheel 5h, a fourth pinion 5i, a fifth gearwheel 5j, and a fifth pinion 5k, the input gear 5a is fixedly connected to the output end of the motor 4, the input gear 5a is engaged with the first gearwheel 5b, the first gearwheel 5b is integrally structured with the first pinion 5c, the first pinion 5c is engaged with the second gearwheel 5d, the second gearwheel 5d is integrally structured with the second pinion 5e, the second pinion 5e is engaged with the third gearwheel 5f, and the third gearwheel 5f is integrally structured with the third pinion 5g, the third pinion 5g meshes with fourth gear wheel 5h, fourth gear wheel 5h and fourth pinion 5i formula structure as an organic whole, fourth pinion 5i meshes with fifth gear wheel 5j, fifth gear wheel 5j and fifth pinion 5k formula structure as an organic whole, fifth pinion 5k meshes with fan-shaped tooth 6. The combination of multiple sets of gears meshing with each other reduces the diameter of the individual gears and also provides space for the manual drive shaft 10. As shown in fig. 6, the manual drive shaft 10 is coaxially provided on the third large gear 5 f.

Furthermore, the included angle between the two side edges of the sector-shaped teeth 6 is 70-90 degrees.

Further, as shown in fig. 3, a buckle 16 is fixed on the lower surface of the box base 1, and an inner hexagonal wrench 17 adapted to the inner hexagonal hole 11 is clamped in the buckle 16. When manual operation is needed, a worker can directly take the hexagon socket wrench 17 for use without carrying a tool.

Further, as shown in fig. 7 and 8, two adjustable limit nuts 13 are mounted on the side wall of the box base 1, and the adjustable limit nuts 13 can abut against the corresponding side edges of the sector-shaped teeth 6. Adjustable stop nut 13 is connected through screw-thread fit with the case seat 1 is direct, through rotating adjustable stop nut 13, can realize that adjustable stop nut 13 stretches into the inside length adjustment of case seat 1 to adjustable fan-shaped tooth 6 and adjustable stop nut 13's butt position, and then realize the control that the aperture scope was adjusted.

Further, as shown in fig. 2, a waterproof cover 15 is further disposed on the top surface of the upper cover 2, and the waterproof cover 15 is installed in the through hole in a snap fit manner. When the manual control is not needed, the waterproof cover 15 covers the through hole to prevent external water from entering the box base 1.

Further, as shown in fig. 1 and 2, a wiring lock 14 for facilitating wiring is further disposed on a side wall of the box base 1.

Further, as shown in fig. 1 and 3, a cover 3 capable of being connected with the valve body is further disposed on the bottom surface of the tank base 1, and the cover 3 is coaxial with the output shaft 7.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel electric actuator is characterized in that: comprises a box seat (1), a motor (4), a gear assembly (5), fan-shaped teeth (6), an output shaft (7) and a micro switch (9), wherein the motor (4) is installed in the box seat (1), the output end of the motor (4) is in transmission connection with an input gear (5a) of the gear assembly (5), an output gear of the gear assembly (5) is meshed with the fan-shaped teeth (6), the fan-shaped teeth (6) are fixedly connected with the middle part of the output shaft (7), an upper cover (2) is covered above the box seat (1), an indicating device (12) is installed at the upper end of the output shaft (7), two check blocks (8) are fixed above the middle part of the output shaft (7), two groups of micro switches (9) which are axially symmetrical relative to the output shaft (7) are arranged on the inner wall of the upper cover (2), and the check blocks (8) can trigger the micro switch (9) at the same side with the check blocks, a manual driving shaft (10) is coaxially arranged on a middle gear of the gear assembly (5), a hexagon socket (11) is arranged on the top end face of the manual driving shaft (10), and a through hole which is aligned with the hexagon socket (11) up and down is formed in the upper cover (2).

2. The novel electric actuator of claim 1, wherein: the upper end of the output shaft (7) penetrates through the upper cover (2), and the indicating device (12) is located above the upper cover (2).

3. The novel electric actuator of claim 1, wherein: the gear assembly (5) comprises an input gear (5a), a first gearwheel (5b), a first pinion (5c), a second gearwheel (5d), a second pinion (5e), a third gearwheel (5f), a third pinion (5g), a fourth gearwheel (5h), a fourth pinion (5i), a fifth gearwheel (5j) and a fifth pinion (5k), the input gear (5a) is fixedly connected with the output end of the motor (4), the input gear (5a) is meshed with the first gearwheel (5b), the first gearwheel (5b) and the first pinion (5c) are of an integrated structure, the first pinion (5c) is meshed with the second gearwheel (5d), the second gearwheel (5d) and the second pinion (5e) are of an integrated structure, and the second pinion (5e) is meshed with the third gearwheel (5f), third gear wheel (5f) and third pinion (5g) formula structure as an organic whole, third pinion (5g) and fourth gear wheel (5h) meshing, fourth gear wheel (5h) and fourth pinion (5i) formula structure as an organic whole, fourth pinion (5i) and fifth gear wheel (5j) meshing, fifth gear wheel (5j) and fifth pinion (5k) formula structure as an organic whole, fifth pinion (5k) and fan-shaped tooth (6) meshing.

4. The novel electric actuator of claim 3, wherein: the manual driving shaft (10) is coaxially arranged on the third large gear (5 f).

5. The novel electric actuator of claim 3, wherein: the included angle between the two side edges of the fan-shaped teeth (6) is 70-90 degrees.

6. The novel electric actuator of claim 1, wherein: a buckle (16) is fixed on the lower surface of the box base (1), and an inner hexagonal wrench (17) matched with the inner hexagonal hole (11) is clamped in the buckle (16).

7. The novel electric actuator of claim 5, wherein: two adjustable limiting nuts (13) are mounted on the side wall of the box base (1), and the adjustable limiting nuts (13) can abut against the side edges corresponding to the fan-shaped teeth (6).

8. The novel electric actuator of claim 1, wherein: still be provided with waterproof cover (15) on the top surface of upper cover (2), waterproof cover (15) joint cooperation is installed in the through-hole.

9. The novel electric actuator of claim 1, wherein: and a wiring lock head (14) convenient for wiring is further arranged on the side wall of the box base (1).

10. The novel electric actuator of claim 1, wherein: the bottom surface of the box base (1) is also provided with a sleeve cover (3) which can be connected with the valve body, and the sleeve cover (3) is coaxial with the output shaft (7).