CN212616639U

CN212616639U - High-precision actuator

Info

Publication number: CN212616639U
Application number: CN202021297159.1U
Authority: CN
Inventors: 唐宇; 林海
Original assignee: Chengdu Sepstar Engineering Technology Co ltd
Current assignee: Chengdu Sepstar Engineering Technology Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-02-26
Anticipated expiration: 2030-07-06

Abstract

The utility model discloses a high accuracy executor, including governing valve, support, electric jar, planetary reducer and servo motor, the welding has the support on the governing valve, support upper surface bolted fixation has electric jar the last surface bolted fixation of electric jar has planetary reducer, and planetary reducer upper surface bolted fixation has servo motor. The utility model discloses in, this high accuracy executor, simple structure, compact structure, it is convenient to maintain to compare in traditional executor, light in weight, the installation is fixed and the equal convenience very of transfer, secondly be provided with planetary reducer and electric jar cooperation servo motor and use, the setting of electric jar can be with the accurate rotational speed control of servo motor, accurate revolution control, accurate torque control is transformed into-accurate speed control, accurate position control, accurate thrust control, has realized the high accuracy and has carried out.

Description

High-precision actuator

Technical Field

The utility model relates to a governing valve technical field especially relates to high accuracy executor.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally consisting of an actuator and a valve. If according to the stroke characteristic, the regulating valve can be divided into a straight stroke and an angular stroke; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the method is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics of the method. The regulating valve is suitable for air, water, steam, various corrosive media, slurry, oil and other media. The name of English: control valve, position number usually begins with FV. The common classification of regulating valves: pneumatic regulating valve, electric regulating valve, hydraulic regulating valve and self-operated regulating valve.

The existing regulating valve actuator has the advantages of lower control precision, larger overall structure, heavier weight and inconvenience in installation and transfer, so that the requirement of a user cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-precision actuator.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the high-precision actuator comprises a regulating valve, a bracket, an electric cylinder, a planetary reducer and a servo motor;

a support is welded on the adjusting valve, an electric cylinder is fixed on the upper surface of the support through bolts, a planetary reducer is fixed on the upper surface of the electric cylinder through bolts, and a servo motor is fixed on the upper surface of the planetary reducer through bolts;

the output end shaft of the servo motor rotates with the worm input end of the planetary reducer through a coupler, and the output shaft of the electric cylinder is connected with a valve rod arranged on the regulating valve through a connecting plate.

Preferably, the support comprises lower annular seat, lower fixing base, last annular seat and last fixing base, the fixing base is provided with three altogether and is the annular distribution welding under on the outer table wall of annular seat, it is provided with three altogether and is the annular distribution welding on the outer table wall of last annular seat to go up the fixing base, threaded connection has the threaded rod between going up fixing base and the lower fixing base, and threaded connection has stop nut on the threaded rod.

Preferably, the regulating valve is fixed with two connecting flanges along one end of the length direction through bolts, and the two connecting flanges are symmetrical to each other about the regulating valve.

Preferably, the threaded rods are three in number, the three threaded rods are distributed annularly, and the distance between every two adjacent threaded rods is equal.

Preferably, the lower annular seat and the upper annular seat are on the same vertical line, and the outer diameter of the lower annular seat is equal to that of the upper annular seat.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, this high accuracy executor, simple structure, compact structure, it is convenient to maintain to compare in traditional executor, light in weight, the installation is fixed and the equal convenience very of transfer, secondly be provided with planetary reducer and electric jar cooperation servo motor and use, the setting of electric jar can be with the accurate rotational speed control of servo motor, accurate revolution control, accurate torque control is transformed into-accurate speed control, accurate position control, accurate thrust control, has realized the high accuracy and has carried out.

Drawings

Fig. 1 is a schematic structural diagram of a high-precision actuator according to the present invention;

fig. 2 is a schematic structural diagram of a bracket of the high-precision actuator according to the present invention;

fig. 3 is the utility model provides a structural schematic of the threaded rod of high accuracy executor.

Illustration of the drawings:

1. adjusting a valve; 2. a connecting flange; 3. a support; 31. a lower annular seat; 32. a lower fixed seat; 33. an upper annular seat; 34. an upper fixed seat; 35. a threaded rod; 351. a limit nut; 4. a coupling; 5. an output shaft; 6. an electric cylinder; 7. a planetary reducer; 8. a servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the high-precision actuator comprises a regulating valve 1, a bracket 3, an electric cylinder 6, a planetary reducer 7 and a servo motor 8;

a support 3 is welded on the regulating valve 1, an electric cylinder 6 is fixed on the upper surface of the support 3 through bolts, a planetary reducer 7 is fixed on the upper surface of the electric cylinder 6 through bolts, and a servo motor 8 is fixed on the upper surface of the planetary reducer 7 through bolts;

an output end shaft of the servo motor 8 rotates with a worm input end of the planetary reducer 7 through a coupler, and an output shaft 5 of the electric cylinder 6 is connected with a valve rod arranged on the regulating valve 1 through a connecting plate 4.

Support 3 comprises lower annular seat 31, lower fixing base 32, last annular seat 33 and last fixing base 34, and lower fixing base 32 is provided with three annular distribution welding under on the outer table wall of annular seat 31 altogether, goes up fixing base 34 and is provided with three annular distribution welding on the outer table wall of last annular seat 33 altogether, goes up threaded connection has threaded rod 35 between fixing base 34 and the lower fixing base 32, and threaded connection has stop nut 351 on the threaded rod 35.

The regulating valve 1 is fixed with connecting flange 2 along length direction's one end bolt, and connecting flange 2 is provided with two altogether, and two connecting flange 2 are symmetrical about regulating valve 1 each other.

The number of the threaded rods 35 is three, the three threaded rods 35 are distributed annularly, and the distance between every two adjacent threaded rods 35 is equal.

The lower annular seat 31 and the upper annular seat 33 are on the same vertical line, and the outer diameter of the lower annular seat 31 is equal to the outer diameter of the upper annular seat 33.

The working principle is as follows: when the high-precision actuator is used, a power supply is connected externally, the servo motor 8 drives the planetary reducer 7 to work, and the planetary reducer 7 drives the valve rod to work through the electric cylinder 6, so that the control of the regulating valve 1 is realized.

In this embodiment: lower annular seat 31 welded fastening is on governing valve 1, and electricity jar 6 bolt fastening is on last annular seat 33, goes up annular seat 33 and passes through threaded rod 35 with lower annular seat 31 and connect fixedly, rotates threaded rod 35, can adjust the interval between last annular seat 33 and the lower annular seat 31 for the interval between last annular seat 33 and the lower annular seat 31 is adjustable, improves its practicality.

In this embodiment: the electric cylinder 6 is of type SEA 802.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The high-precision actuator is characterized by comprising a regulating valve (1), a bracket (3), an electric cylinder (6), a planetary reducer (7) and a servo motor (8);

a support (3) is welded on the adjusting valve (1), an electric cylinder (6) is fixed on the upper surface of the support (3) through bolts, a planetary reducer (7) is fixed on the upper surface of the electric cylinder (6) through bolts, and a servo motor (8) is fixed on the upper surface of the planetary reducer (7) through bolts;

the output end shaft of the servo motor (8) rotates with the worm input end of the planetary reducer (7) through a coupler, and the output shaft (5) of the electric cylinder (6) is connected with a valve rod arranged on the regulating valve (1) through a connecting plate (4).

2. The high-precision actuator according to claim 1, wherein the support (3) is composed of a lower annular seat (31), a lower fixed seat (32), an upper annular seat (33) and an upper fixed seat (34), the lower fixed seat (32) is provided with three annular distributed welding parts welded on the outer surface wall of the lower annular seat (31), the upper fixed seat (34) is provided with three annular distributed welding parts welded on the outer surface wall of the upper annular seat (33), a threaded rod (35) is in threaded connection between the upper fixed seat (34) and the lower fixed seat (32), and a limit nut (351) is in threaded connection on the threaded rod (35).

3. A high-precision actuator according to claim 1, characterized in that one end of the regulating valve (1) along the length direction is fixed with a bolt with a connecting flange (2), the number of the connecting flanges (2) is two, and the two connecting flanges (2) are symmetrical with each other about the regulating valve (1).

4. A high-precision actuator according to claim 2, characterized in that the number of the threaded rods (35) is three, and the three threaded rods (35) are distributed annularly, and the distance between two adjacent threaded rods (35) is equal.

5. A high-precision actuator according to claim 2, characterized in that the lower annular seat (31) and the upper annular seat (33) are on the same vertical line, and the outer diameter of the lower annular seat (31) is equal to the outer diameter of the upper annular seat (33).