CN215172626U

CN215172626U - Output connection structure of electric actuator

Info

Publication number: CN215172626U
Application number: CN202120243646.8U
Authority: CN
Inventors: 张重庆
Original assignee: Castor Intelligent Technology Jiangyin Co ltd
Current assignee: Castor Intelligent Technology Jiangyin Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-12-14
Anticipated expiration: 2031-01-28

Abstract

The utility model relates to an electric actuator technical field, concretely relates to electric actuator's output connection structure, be in including electric actuator's casing, setting torque output shaft on the electric actuator casing, torque output shaft's output end portion is provided with the transitional coupling hole, the transitional coupling hole is the octagon hole, be provided with the octagon axle in the octagon hole, the cylinder hole has been seted up along the axial in the center of octagon axle, the keyway has been seted up along the axial to the internal surface in cylinder hole. The utility model provides the high electric actuator is to the suitability that different valve rod diameters are connected.

Description

Output connection structure of electric actuator

Technical Field

The utility model relates to an electric actuator technical field, concretely relates to electric actuator's output connection structure.

Background

The electric actuator is also called valve electric device, and is widely used for automatic control of industrial pipeline valves and instrument valves.

A typical electric actuator is an angular stroke electric actuator, which uses a motor as a driving force, and outputs a certain rotational angle with a large torque on an output shaft after being decelerated by a reduction gear mechanism to drive the opening or closing of a valve.

The prior art electric actuators still have the following problems when in use: the connection structure between the electric actuator and the valve is not flexible enough, and the diameter of the valve rod is changed greatly due to more types and specifications of the valve, so that the electric actuator is difficult to adapt to the requirements of connection of different valve rod diameters.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an electric actuator's output connection structure aims at improving the suitability that electric actuator connects to different valve rod diameters. The specific technical scheme is as follows:

the utility model provides an electric actuator's output connection structure, is in including electric actuator's casing, setting torque output shaft on the electric actuator casing, torque output shaft's output end portion is provided with the transition connecting hole, the transition connecting hole is the octagon hole, be provided with the octagon axle in the octagon hole, the cylinder hole has been seted up along the axial in the center of octagon axle, the keyway has been seted up along the axial in the internal surface in cylinder hole.

Preferably, the octagonal shaft is an octagonal shaft with eight right-angle teeth, and the eight right-angle teeth are uniformly arranged along the circumferential direction.

Wherein, the octagon axle with octagon hole sliding fit connects.

Preferably, the tip of each right-angle tooth on the eight-tooth shaft is provided with a chamfer, and the chamfer is a fillet.

Preferably, the end face of the eight-tooth shaft is provided with a dismounting threaded hole.

The utility model discloses in, be provided with fan-shaped worm wheel on the moment of torsion output shaft, the built-in worm of electric actuator casing is connected to fan-shaped worm wheel.

The utility model discloses in, the electric actuator casing is built-in to have the motor, the motor shaft of motor through gear drive with the worm is connected.

Preferably, the key groove is one of a single key groove, a symmetrical double key groove and a spline key groove.

Preferably, the octagonal shaft is in an octagonal shaft shape formed by numerical control linear cutting processing.

The octagonal shaft formed by the numerical control linear cutting machining is high in precision and good in adaptability with the torque output shaft.

The utility model has the advantages that:

first, the utility model discloses an electric actuator's output connection structure, torque output shaft's output end portion is provided with the octagon hole, and the octagon is downthehole to be provided with and is used for the removable octagon axle of being connected with the valve rod, only needs the octagon axle of chooseing for use different specifications can realize being connected of electric actuator and different specification valves when the valve rod diameter of valve appears changing, and its suitability and commonality are good.

Second, the utility model discloses an electric actuator's output connection structure, octagonal structure's hole axle cooperation intensity is high, and the structure is comparatively compact, and the moment of torsion of transmission is big simultaneously.

Third, the utility model discloses an electric actuator's output connection structure, drive mechanism adopt worm gear drive mechanism, and the moment of torsion of its output is big, the connection and the control of applicable great specification valve.

Drawings

Fig. 1 is a schematic structural diagram of an output connection structure of an electric actuator according to the present invention;

FIG. 2 is a schematic view of the construction of the octagonal axle of FIG. 1 (partial bottom view of FIG. 1);

fig. 3 is a partial schematic structural view of the torque output shaft of fig. 1.

In the figure: 1. the torque output shaft, 2, 3, octagon hole, 4, eight star anise axle, 5, cylinder hole, 6, keyway, 7, dismantlement screw hole, 8, fan-shaped worm wheel, 9, worm, 10, motor.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 3, the utility model discloses an electric actuator's output connection structure's embodiment, casing 1, setting including electric actuator are in torque output shaft 2 on the electric actuator casing 1, torque output shaft 2's output end is provided with the transitional coupling hole, the transitional coupling hole is octagonal hole 3, be provided with octagonal shaft 4 in the octagonal hole 3, cylindrical hole 5 has been seted up along the axial at octagonal shaft 4's center, keyway 6 has been seted up along the axial to cylindrical hole 5's internal surface.

Preferably, the octagonal shaft 4 is an octagonal shaft with eight right-angled teeth, and the eight right-angled teeth are uniformly arranged along the circumferential direction.

Wherein, the octagon shaft 4 is connected with the octagon hole 3 in a sliding fit manner.

Preferably, the tip of each right-angle tooth on the eight-tooth shaft 4 is provided with a chamfer, and the chamfer is a fillet.

Preferably, the end face of the eight-tooth shaft 4 is provided with a dismounting threaded hole 7.

In this embodiment, the torque output shaft 2 is provided with a sector worm wheel 8, and the sector worm wheel 8 is connected with a worm 9 arranged in the electric actuator housing 1.

In this embodiment, a motor 10 is disposed in the electric actuator housing 1, and a motor shaft of the motor 10 is connected to the worm 9 through gear transmission.

Preferably, the key groove 6 is one of a single key groove, a symmetrical double key groove and a spline key groove.

Preferably, the octagonal shaft 4 has an octagonal shaft shape formed by a numerical control wire cutting process.

The octagonal shaft formed by the numerical control linear cutting machining is high in precision and good in adaptability with the torque output shaft 2.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The output connection structure of the electric actuator is characterized by comprising a shell of the electric actuator and a torque output shaft arranged on the shell of the electric actuator, wherein a transition connection hole is formed in the end part of the output end of the torque output shaft, the transition connection hole is an octagonal hole, an octagonal shaft is arranged in the octagonal hole, a cylindrical hole is formed in the center of the octagonal shaft along the axial direction, and a key groove is formed in the inner surface of the cylindrical hole along the axial direction.

2. The output connection structure of an electric actuator according to claim 1, wherein the octagonal shaft is an octagonal shaft with eight right-angled teeth, and the eight right-angled teeth are uniformly arranged in a circumferential direction.

3. The output connection structure of an electric actuator according to claim 1, wherein the octagonal shaft is connected with the octagonal hole in a sliding fit manner.

4. The output connection structure of an electric actuator according to claim 2, wherein the tip of each right-angle tooth on the eight-tooth shaft is provided with a chamfer, and the chamfer is a fillet.

5. The output connection structure of an electric actuator according to claim 2, wherein the end face of the eight-tooth shaft is provided with a removal threaded hole.

6. The output connection structure of the electric actuator as claimed in claim 1, wherein the torque output shaft is provided with a sector worm wheel, and the sector worm wheel is connected with a worm built in the electric actuator casing.

7. The output connection structure of an electric actuator according to claim 6, wherein a motor is arranged in the electric actuator casing, and a motor shaft of the motor is connected with the worm through gear transmission.

8. The output connection of an electric actuator according to claim 1, wherein the key groove is one of a single key groove, a symmetrical double key groove, and a spline groove.

9. The output connection structure of an electric actuator according to claim 1, wherein the octagonal shaft has an octagonal shaft shape formed by numerical control wire cutting.