CN215410492U

CN215410492U - Valve with controller

Info

Publication number: CN215410492U
Application number: CN202120753684.8U
Authority: CN
Inventors: 林楚华
Original assignee: Ningbo Ruigong Automatic Control Equipment Co ltd
Current assignee: Ningbo Ruigong Automatic Control Equipment Co ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2022-01-04
Anticipated expiration: 2031-04-13

Abstract

The utility model provides a valve with a controller, which comprises a valve body and a control mechanism, wherein the control mechanism comprises a motor, the motor is connected with the controller, a spindle of the motor is connected with a rotating shaft, the lower end of the rotating shaft is connected with a shaft sleeve, a valve rod is connected in the shaft sleeve, the valve rod extends into the valve body, the lower end of the valve rod is provided with a valve core for controlling the valve body, and the valve rod can move up and down in the shaft sleeve; a fixing frame is arranged between the valve body and the motor. Compared with the traditional valve electric actuating device, the valve with the controller has the advantages that: 1. the transmission mechanism has higher precision and small volume, is convenient to install and has wider application range; 2. the controller and the motor control the stroke of the motor through a high-precision encoder, so that the precision is higher and the stability is better; 3. the stroke can be controlled to be less than or equal to 0.05 mm/pulse, and accurate control is realized.

Description

Valve with controller

Technical Field

The utility model relates to a valve, in particular to a valve with a controller.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. Valves used in fluid control systems range in variety and size from the simplest shut-off valves to the variety of valves used in extremely complex autonomous systems. In the existing valves, the first and the traditional valves cannot achieve high-precision control due to low control precision, so that the application range of the valves is narrow; second, the valve with an automatic control system is often high in control accuracy, but the structure is complex, resulting in high cost.

SUMMERY OF THE UTILITY MODEL

【1】 Technical problem to be solved

The utility model aims to solve the technical problem of providing a valve with a controller, which has the advantages of simple structure, small volume, low manufacturing cost, convenient and quick use and high adjustment precision.

【2】 Technical scheme for solving problems

The utility model provides a valve with a controller, which comprises a valve body and a control mechanism, wherein the control mechanism comprises a motor, the motor is connected with the controller, a spindle of the motor is connected with a rotating shaft, the lower end of the rotating shaft is connected with a shaft sleeve, a valve rod is connected in the shaft sleeve and extends into the valve body, the lower end of the valve rod is provided with a valve core for controlling the valve body, and the valve rod can move up and down in the shaft sleeve; a fixing frame is arranged between the valve body and the motor.

Furthermore, the upper end of the shaft sleeve is fixedly connected with the lower end of the rotating shaft; an internal thread structure is arranged in the shaft sleeve, and an external thread structure matched with the internal thread structure is arranged at the upper end of the valve rod.

Further, the length of the matching between the external thread structure and the internal thread structure is greater than that of the valve core.

Furthermore, a limiting groove is formed in the valve body, and a stage matched with the limiting groove is arranged on the valve rod.

Further, the motor is a servo motor or a stepping motor.

Furthermore, the valve body and the motor are respectively installed on the fixing frame through screws.

【3】 Advantageous effects

Compared with the traditional valve electric actuating device, the valve with the controller has the advantages that: 1. the transmission mechanism has higher precision and small volume, is convenient to install and has wider application range; 2. the controller and the motor control the stroke of the motor through a high-precision encoder, so that the precision is higher and the stability is better; 3. the stroke can be controlled to be less than or equal to 0.05 mm/pulse, and accurate control is realized.

Drawings

FIG. 1 is a schematic diagram of a valve with a controller according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a schematic diagram of the valve stem of the valve with controller according to the present invention.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Referring to fig. 1 to 3, the utility model provides a valve with a controller, which comprises a valve body 7 and a control mechanism, wherein the control mechanism comprises a motor 2, the motor 2 is connected with a controller 1, the motor 2 is connected with the controller 1, the stroke of the motor is controlled between the controller 1 and the motor 2 through a high-precision encoder, the controller 1 is further provided with an operable display screen, a spindle 5 is connected to a spindle 3 of the motor 2, the spindle 3 of the motor 2 is arranged downwards, a spindle sleeve 6 is connected to the lower end of the spindle 5, a valve rod 8 is connected in the spindle sleeve 6, the valve rod 8 extends into the valve body 7, a valve core 83 for controlling the valve body 7 is arranged at the lower end of the valve rod 8, the valve rod 8 can move up and down in the spindle sleeve 6, and the valve core 83 can move up and down in the spindle sleeve 6 to realize the opening and closing actions of the valve body 7 by the valve rod 8; a fixing frame 4 is arranged between the valve body 7 and the motor 2 for the convenience of installation.

In order to facilitate the valve rod 8 to move up and down in the shaft sleeve 6, the upper end of the shaft sleeve 6 is fixedly connected with the lower end of the rotating shaft 5 in the embodiment; an internal thread structure 61 is arranged in the shaft sleeve 6, an external thread structure 81 matched with the internal thread structure 61 is arranged at the upper end of the valve rod 8, the shaft sleeve 6 is driven to rotate by the motor 2, and then the valve rod 8 moves up and down in the shaft sleeve 6 by matching the internal thread structure 61 of the shaft sleeve 6 with the external thread structure 81 on the valve rod 8; further, for the convenience of adjustment, the valve rod 8 is placed to be separated from the shaft sleeve 6, and the length of the matching of the external thread structure 81 and the internal thread structure 61 is greater than that of the valve core 83.

In order to increase the application range, in the present embodiment, a limit groove 71 is provided in the valve body 7, and a step section 82 that engages with the limit groove 71 is provided on the valve rod 8.

Further, in order to realize precise control, the motor 2 may be a servo motor or a stepping motor, and preferably a servo motor is used.

For the convenience of installation, the valve body 7 and the motor 2 are respectively installed on the fixed frame 4 through screws in the embodiment.

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

Claims

1. The utility model provides a valve with controller, includes valve body and control mechanism, its characterized in that: the control mechanism comprises a motor, a controller is connected to the motor, a spindle of the motor is connected with a rotating shaft, the lower end of the rotating shaft is connected with a shaft sleeve, a valve rod is connected in the shaft sleeve and extends into the valve body, a valve core for controlling the valve body is arranged at the lower end of the valve rod, and the valve rod can move up and down in the shaft sleeve; a fixing frame is arranged between the valve body and the motor.

2. The valve with controller as claimed in claim 1, wherein: the upper end of the shaft sleeve is fixedly connected with the lower end of the rotating shaft; an internal thread structure is arranged in the shaft sleeve, and an external thread structure matched with the internal thread structure is arranged at the upper end of the valve rod.

3. The valve with controller as claimed in claim 2, wherein: the length of the matching of the external thread structure and the internal thread structure is greater than that of the valve core.

4. The valve with controller as claimed in claim 1, wherein: the valve body is internally provided with a limiting groove, and the valve rod is provided with a stage matched with the limiting groove.

5. The valve with controller as claimed in claim 1, wherein: the motor is a servo motor or a stepping motor.

6. The valve with controller as claimed in claim 1, wherein: the valve body and the motor are respectively installed on the fixing frame through screws.