CN111219384A

CN111219384A - Small electro-hydraulic linkage actuator

Info

Publication number: CN111219384A
Application number: CN202010024040.5A
Authority: CN
Inventors: 王一飞
Original assignee: Hangzhou Flowtecal Valves & Controls Co ltd
Current assignee: Hangzhou Flowtecal Valves & Controls Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-06-02

Abstract

The invention provides a small electro-hydraulic linkage actuator, and belongs to the technical field of actuators. The small electro-hydraulic linkage actuator comprises an electric control box, a power mechanism and an actuator main body. The actuating unit comprises a motor, an oil tank and an oil path block, the oil path block is fixed on one side of the electric control box, the motor is arranged on one side of the oil path block, the oil tank is arranged on the other side of the oil path block, and the actuator body is communicated with the oil path block. According to the hydraulic power mechanism and the electric control box, the electric control box controls the motor in the power mechanism to work, the motor can drive hydraulic oil in the oil tank to move when working, the hydraulic oil can enter the actuator through the two oil path blocks to drive the actuator, and the actuator can start working.

Description

Small electro-hydraulic linkage actuator

Technical Field

The invention relates to the field of actuators, in particular to a small electro-hydraulic linkage 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.

The existing hydraulic actuator is not compact in structure, can complete work only by an external oil pipe and a matched hydraulic pump station, is large in overall occupied space, and affects the application range of the hydraulic actuator.

Disclosure of Invention

In order to make up for the defects, the invention provides a small electro-hydraulic linkage actuator, aiming at solving the problem that the traditional hydraulic actuator occupies a large space.

The invention is realized by the following steps:

the invention provides a small electro-hydraulic linkage actuator which comprises an electric control box, a power mechanism and an actuator main body.

The actuating unit comprises a motor, an oil tank and an oil path block, the oil path block is fixed on one side of the electric control box, the motor is arranged on one side of the oil path block, the oil tank is arranged on the other side of the oil path block, and the actuator body is communicated with the oil path block.

In one embodiment of the present invention, the electronic control box includes a housing, a mounting plate, an integrated circuit board, a terminal block, and an ac contactor, wherein the mounting plate is fixed to a surface of the housing, the integrated circuit board is disposed on a surface of the mounting plate, the terminal block is fixed to a surface of the mounting plate, and the ac contactor is also disposed on a surface of the mounting plate.

In an embodiment of the invention, stuffing boxes are fixed on one side of the surface of the housing, and at least three stuffing boxes are fixed on one side of the surface of the housing and arranged in parallel.

In one embodiment of the invention, the surface of the housing is provided with an explosion-proof valve.

In an embodiment of the present invention, an indicator light is disposed on a surface of the integrated circuit board, and a key switch is mounted on the surface of the integrated circuit board.

In one embodiment of the invention, an oil pump is disposed inside the oil tank.

In one embodiment of the invention, the surface of the actuator main body is also communicated with an oil path block, and the two oil path blocks are communicated with each other.

In an embodiment of the present invention, a limit switch is installed on the rotating shaft of the actuator main body, and the limit switch is electrically connected to the electronic control box.

In one embodiment of the invention, the actuator body is provided with a mounting bracket matched with the limit switch, and one side of the limit switch is fixed on the surface of the mounting bracket.

In one embodiment of the invention, the surface of the actuator main body is provided with an anticorrosive layer, and the thickness of the anticorrosive layer is not less than 0.8 mm.

The invention has the beneficial effects that: when the small electro-hydraulic linkage actuator obtained through the design is used, the motor in the power mechanism is controlled by the electric control box to work, the motor can drive hydraulic oil in the oil tank to move when working, the hydraulic oil can enter the actuator through the two oil path blocks to drive the actuator, and the actuator can start to work.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a small electro-hydraulic linkage actuator provided by an embodiment of the invention;

FIG. 2 is a schematic view of a side structure of a housing according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a power mechanism according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an oil circuit block according to an embodiment of the present invention.

In the figure: 100-an electronic control box; 110-a housing; 120-a mounting plate; 130-an integrated circuit board; 140-terminal row; 150-ac contactor; 160-stuffing box; 300-a power mechanism; 310-a motor; 320-oil tank; 330-oil circuit block; 500-an actuator body; 510-a mounting frame; 520-limit switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1-4, the invention provides a small electro-hydraulic linkage actuator, which includes an electric control box 100, a power mechanism 300 and an actuator body 500.

The electric control box 100 is used for controlling the power mechanism 300, and the power mechanism 300 is used for providing power for the actuator body 500.

Referring to fig. 1-2, an electrical control box 100 includes a housing 110, a mounting plate 120, an ic board 130, a terminal block 140 and an ac contactor 150, the mounting plate 120 is fixed on a surface of the housing 110, the ic board 130 is disposed on a surface of the mounting plate 120, the terminal block 140 is fixed on a surface of the mounting plate 120, the ac contactor 150 is also disposed on a surface of the mounting plate 120, the mounting plate 120 is fixed on a surface of the housing 110 by bolts, the mounting plate 120 is used for mounting the ic board 130, the terminal block 140 and the ac contactor 150 on a surface of the housing 110, stuffing boxes 160 are fixed on one side of the surface of the housing 110, at least three stuffing boxes 160 are disposed in parallel, the stuffing boxes 160 are used for fixing cables, an explosion-proof valve is disposed on a surface of the housing 110, the housing 110 can be made of explosion-proof material, an indicator, and the surface of the integrated circuit board 130 is provided with a key switch, thereby facilitating the operation of an operator.

Referring to fig. 1, 3 and 4, the power mechanism 300 includes a motor 310, an oil tank 320 and an oil path block 330, the oil path block 330 is fixed to one side of the electronic control box 100, the motor 310 is disposed on one side of the oil path block 330, the oil tank 320 is disposed on the other side of the oil path block 330, when the electronic control box is implemented, hydraulic oil is pre-filled in the oil tank 320, the motor 310 can drive the hydraulic oil to move when the electronic control box is in operation, and the oil path block 330 is used for collecting dispersed hydraulic oil together, so as to facilitate the transportation of the hydraulic oil.

In some embodiments, an oil pump is disposed inside the oil tank 320, and the oil pump can deliver hydraulic oil, thereby improving the delivery efficiency of the hydraulic oil.

Referring to fig. 1-2, the actuator body 500 is connected to the oil path block 330, and in an embodiment, hydraulic oil is delivered to the interior of the actuator body 500 through the oil path block 330, so as to drive the actuator body 500 to operate, and in an embodiment, the actuator body 500 is a submerged hydraulic actuator.

In some specific embodiments, the surface of the actuator body 500 is also communicated with the oil path blocks 330, and the two oil path blocks 330 are communicated with each other, so as to facilitate the flow of hydraulic oil, a limit switch 520 is installed on the rotating shaft of the actuator body 500, and the limit switch 520 is electrically connected with the electronic control box 100, the limit switch 520 is electrically connected with the electronic control box 100 through a wire, the limit switch 520 is used for judging the stroke of the actuator body 500 to achieve the effect of controlling the circuit, when the stroke of the actuator body 500 reaches the upper limit, the limit switch 520 on the rotating shaft of the actuator body 500 reaches the limit, the limit switch 520 sends a stop signal to the electronic control box 100, the electronic control box 100 controls the motor 310 to stop the motor 310, so as to stop the delivery of hydraulic oil and further stop the operation of the actuator body 500, the actuator body 500 is provided with a mounting bracket 510 matched with the limit switch 520, one side of limit switch 520 is fixed in the surface of mounting bracket 510, and this mounting bracket 510 is used for supporting limit switch 520, guarantees the stability of limit switch 520 installation, and the surface of executor main part 500 is provided with the anticorrosive coating, and the thickness of anticorrosive coating is not less than 0.8mm, and this anticorrosive coating is brushed on executor main part 500 surface by anticorrosive paint and is formed.

Specifically, the working principle of the small electro-hydraulic linkage actuator is as follows: when the hydraulic actuator is used, firstly, the electric control box 100 sends a signal to the motor 310 in the power mechanism 300, so that the motor 310 starts to work, the oil pump in the oil tank 320 is driven to work, hydraulic oil enters the actuator main body 500 through the two oil path blocks 330, the actuator main body 500 can start to work, when the stroke of the actuator main body 500 reaches the upper limit, the limit switch 520 on the rotating shaft of the actuator main body 500 reaches the limit, the limit switch 520 sends a signal to the electric control box 100, the electric control box 100 controls the motor 310, so that the motor 310 stops running, the delivery of the hydraulic oil is stopped, and the work of the actuator main body 500 is stopped.

It should be noted that the specific model specifications of the motor 310, the actuator body 500, and the limit switch 520 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply and the principle of the motor 310, the actuator body 500 and the limit switch 520 will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The small electro-hydraulic linkage actuator is characterized by comprising

An electronic control box (100);

the power mechanism (300), the power mechanism (300) includes a motor (310), an oil tank (320) and an oil path block (330), the oil path block (330) is fixed on one side of the electric control box (100), the motor (310) is arranged on one side of the oil path block (330), and the oil tank (320) is arranged on the other side of the oil path block (330);

an actuator body (500), the actuator body (500) being in communication with the oil circuit block (330).

2. The electro-hydraulic actuator of claim 1, wherein the electronic control box (100) comprises a casing (110), a mounting plate (120), an integrated circuit board (130), a terminal block (140) and an ac contactor (150), the mounting plate (120) is fixed on the surface of the casing (110), the integrated circuit board (130) is arranged on the surface of the mounting plate (120), the terminal block (140) is fixed on the surface of the mounting plate (120), and the ac contactor (150) is also arranged on the surface of the mounting plate (120).

3. The electro-hydraulic linkage actuator as claimed in claim 2, wherein stuffing boxes (160) are fixed on one side of the surface of the housing (110), at least three stuffing boxes (160) are arranged, and at least three stuffing boxes (160) are arranged in parallel.

4. The electro-hydraulic actuator of claim 2, wherein the housing (110) is provided with an explosion-proof valve on a surface thereof.

5. The electro-hydraulic linkage actuator as claimed in claim 2, wherein an indicator light is arranged on the surface of the integrated circuit board (130), and a key switch is arranged on the surface of the integrated circuit board (130).

6. The electro-hydraulic actuator of claim 1, wherein an oil pump is disposed inside the oil tank (320).

7. The small electro-hydraulic linkage actuator according to claim 1, characterized in that the surface of the actuator body (500) is also communicated with an oil path block (330), and the two oil path blocks (330) are communicated with each other.

8. The electro-hydraulic linkage actuator of claim 1, wherein a limit switch (520) is mounted on a rotating shaft of the actuator body (500), and the limit switch (520) is electrically connected with the electronic control box (100).

9. The electro-hydraulic actuator of claim 8, wherein the actuator body (500) is provided with a mounting bracket (510) matched with the limit switch (520), and one side of the limit switch (520) is fixed on the surface of the mounting bracket (510).

10. The electro-hydraulic actuator of claim 1, wherein the actuator body (500) is provided with a corrosion prevention layer on the surface, and the thickness of the corrosion prevention layer is not less than 0.8 mm.