CN-122016293-A - Linear precision calibration device for pneumatic valve positioner

CN122016293ACN 122016293 ACN122016293 ACN 122016293ACN-122016293-A

Abstract

The invention discloses a linear precision calibration device of a pneumatic valve positioner, which comprises a working table plate and a calibrator arranged on the upper left side of the working table plate, wherein a connecting wire is inserted into the upper end of the calibrator, the right end of the connecting wire is inserted into the rear end of a pneumatic valve body, an adjustable first limiting component is arranged on the right side of the working table plate, a movable second limiting component is arranged on the left side of the working table plate, a first connecting shaft is fixedly connected to the middle position of the bottom end of the working table plate, a first connecting strip is rotationally connected to the front and rear ends of a first adjusting plate in a front-rear symmetrical mode at the left lower end of a bearing table, and the right end of the first connecting strip is rotationally connected to the front and rear ends of the first adjusting plate respectively. This pneumatic valve positioner linear accuracy calibrating device is convenient for carry out spacingly to pneumatic valve and calibrator, prevents that pneumatic valve and calibrator from falling down, and convenient angle regulation tests moreover, and height-adjusting is applicable to different staff simultaneously easily.

Inventors

LI HONGGANG
SHANG QINGSONG
WANG XIAOPING
WANG XIAONA
DONG HUIMIN
Chang Shian
YANG ZHENGFA
ZHANG HAILONG
WANG JUN
ZHOU YOUFENG
LIU WEIGUO
MI FULAI

Assignees

青海盐湖元品化工有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260205

Claims (10)

1. A linear precision calibration device of a pneumatic valve positioner comprises a working table plate (1), a connecting disc (10) and a first regulating plate (22), wherein a calibrator (2) is arranged on the left upper side of the working table plate (1), a pneumatic valve (4) is arranged on the right upper side of the working table plate (1), a connecting wire (3) is inserted into the upper end of the calibrator (2), the right end of the connecting wire (3) is inserted into the rear end of the pneumatic valve (4), the inner end of the pneumatic valve (4) is provided with the positioner (5), the linear precision calibration device is characterized in that the right side of the working table plate (1) is provided with an adjustable first limiting component (6), the left side of the working table plate (1) is provided with a movable second limiting component (7), the middle position of the bottom end of the working table plate (1) is fixedly connected with a connecting shaft A (8), the lower end of the connecting shaft A (8) is rotatably connected to the middle position of the upper end of a supporting frame (9), the supporting frame (9) is inlaid and connected to the upper end of a bearing table (15), the rear end of the connecting disc (10) is internally connected with a rear end of the connecting disc (11), the rear end of the connecting disc (16) is rotatably connected to the front end of the bearing table (15), the right end of the first connecting strip (16) is respectively and rotatably connected with the front end and the rear end of the first adjusting plate (22), and the lower end of the first adjusting plate (22) is slidably connected in the first connecting groove (23).
2. The pneumatic valve positioner linear precision calibration device according to claim 1, wherein the first limiting component (6) comprises a first connecting port (601), a first adjusting rod (602), a first limiting plate (603) and a first protection pad (604), the first connecting port (601) is arranged inside the upper right end of the working table plate (1), the first adjusting rod (602) is rotatably connected inside the first connecting port (601), the first limiting plate (603) is connected on the first adjusting rod (602) in a bilateral symmetry threaded mode, the first limiting plate (603) is connected inside the first connecting port (601) in a sliding mode, and the first protection pad (604) is embedded and connected to the upper inner end of the first limiting plate (603).
3. The linear precision calibration device for the pneumatic valve positioner according to claim 2, wherein the outer surface of the first adjusting rod (602) is of a bidirectional thread structure, and the first limiting plate (603) forms a sliding structure on the upper side of the working table plate (1) through the first adjusting rod (602) and the first connecting port (601).
4. The pneumatic valve positioner linear precision calibration device according to claim 1, wherein the second limiting assembly (7) comprises a second connecting port (701), a second adjusting rod (702), a second limiting plate (703) and a second protection pad (704), the second connecting port (701) is arranged inside the upper left end of the working table plate (1), the second adjusting rod (702) is rotatably connected inside the second connecting port (701), the second limiting plate (703) is connected to the left end and the right end of the second adjusting rod (702) in a threaded mode, the lower end of the second limiting plate (703) is connected inside the second connecting port (701) in a sliding mode, and the second protection pad (704) is embedded and connected to the upper inner end of the second limiting plate (703).
5. The device for calibrating the linear precision of the pneumatic valve positioner according to claim 4, wherein the second limiting plate (703) forms a sliding structure on the upper side of the working table plate (1) through a second adjusting rod (702) and a second connecting port (701), and threads at the left end and the right end of the second adjusting rod (702) are opposite in trend.
6. The linear precision calibration device for the pneumatic valve positioner is characterized in that the adjusting block (11) is connected to the right upper end of the connecting handle (12) in an embedded mode, the left lower end of the connecting handle (12) is fixedly connected with the connecting shaft B (13), the connecting shaft B (13) is connected to the left upper end of the supporting frame (9) in a rotating mode, and the motor a (14) is arranged at the lower end of the connecting shaft B (13).
7. The device for calibrating the linear precision of the pneumatic valve positioner according to claim 1, wherein the working table plate (1) forms a rotating structure on the upper side of the supporting frame (9) through the connecting handle (12) and the connecting disc (10), and the rotation circle number of the connecting disc (10) is one fourth of the rotation circle number of the connecting handle (12).
8. The linear precision calibration device for the pneumatic valve positioner is characterized in that a first connecting groove (23) is formed in the middle of the bottom end of a connecting frame (19), an installation block (18) is embedded and connected to the inner wall of the left end of the connecting frame (19), a second connecting strip (17) is rotationally connected to the right end of the installation block (18) in a bilateral symmetry mode, the upper ends of the second connecting strip (17) are respectively rotationally connected to the front end and the rear end of a second adjusting plate (24), the middle position of the second connecting strip (17) is rotationally connected to the first connecting strip (16), and the first connecting strip (16) and the second connecting strip (17) form an X-shaped structure.
9. The linear precision calibration device for the pneumatic valve positioner according to claim 8, wherein a guide rod (25) is connected to the middle position of the second adjusting plate (24) in a penetrating manner, the guide rod (25) is fixedly connected to the inside of a second connecting groove (26), the second connecting groove (26) is formed in the right lower end of the bearing table (15), and the upper end of the second adjusting plate (24) is connected to the inside of the second connecting groove (26) in a sliding manner.
10. The linear precision calibration device for the pneumatic valve positioner according to claim 1 is characterized in that a threaded rod (20) is connected to the middle position of the first adjusting plate (22) in a threaded mode, the threaded rod (20) is rotatably connected to the inside of the connecting frame (19), a motor b (21) is mounted at the left end of the threaded rod (20), and the bearing table (15) forms a lifting structure on the upper side of the connecting frame (19) through the first adjusting plate (22) and the second connecting strip (17).

Description

Linear precision calibration device for pneumatic valve positioner Technical Field The invention relates to the technical field of pneumatic valve positioner linear precision calibration devices, in particular to a pneumatic valve positioner linear precision calibration device. Background The pneumatic valve positioner is a core accessory of a pneumatic regulating valve, is widely applied to the fields of chemical industry, petroleum, metallurgy and the like, is used for accurately controlling pressure, flow and temperature parameters of media such as gas, liquid and the like, and is required to calibrate the linear precision of the positioner during installation and use, and is generally completed through a calibrating device, and the pneumatic valve positioner linear precision calibrating device in the current market has various types and can meet certain requirements. The linear precision calibration device for the pneumatic valve positioner still has some problems in combination with the use condition of actual production and processing, for example, the pneumatic valve and the calibrator are directly placed on a table top, and when the pneumatic valve and the calibrator are slightly pulled in the calibration process, the pneumatic valve and the calibrator fall down on the table top, so that the working efficiency is affected. And when the positions of the workers are different, the angle is inconvenient to adjust for testing. Meanwhile, the heights of the working staff are different, the height of the table top is fixed, the operation is troublesome, and the height is not easy to adjust so as to be suitable for the working staff with different heights. Disclosure of Invention The invention aims to provide a linear precision calibration device for a pneumatic valve positioner, which solves the problems that in the prior art, the pneumatic valve and a calibrator are inconvenient to limit, fall down easily, adjust angles and test, and adjust heights so as to be suitable for workers with different heights. The linear precision calibrating device for the pneumatic valve positioner comprises a working table plate, a connecting disc and a first adjusting plate, wherein a calibrator is arranged on the upper left side of the working table plate, a pneumatic valve is arranged on the upper right side of the working table plate, a connecting wire is inserted into the upper end of the calibrator, the right end of the connecting wire is inserted into the rear end of the pneumatic valve, the positioner is arranged at the inner end of the pneumatic valve, an adjustable first limiting assembly is arranged on the right side of the working table plate, a movable second limiting assembly is arranged on the left side of the working table plate, a connecting shaft A is fixedly connected to the middle position of the bottom end of the working table plate, the lower end of the connecting shaft A is rotatably connected to the middle position of the upper end of a supporting frame, the supporting frame is connected to the upper end of a bearing table in an embedded mode, an adjusting block is connected to the inner portion of the rear end of the connecting disc in a nested mode, the right end of the connecting bar is rotatably connected to the front and rear end of the left lower end of the bearing table in a symmetrical mode, the right end of the connecting bar is rotatably connected to the front and rear end of the first adjusting plate respectively, the lower end of the first adjusting plate is connected to the inner portion of a first connecting groove in a sliding mode. Further, the first limiting assembly comprises a first connecting port, a first adjusting rod, a first limiting plate and a first protection pad, wherein the first connecting port is arranged inside the upper right end of the workbench plate, the first adjusting rod is rotationally connected to the inside of the first connecting port, the first limiting plate is connected to the first adjusting rod in a bilateral symmetry threaded mode, the first limiting plate is connected to the inside of the first connecting port in a sliding mode, and the first protection pad is embedded and connected to the upper inner end of the first limiting plate. The first limiting plate forms a sliding structure on the upper side of the working table plate through the first adjusting rod and the first connecting port. The second limiting assembly comprises a second connecting port, a second adjusting rod, a second limiting plate and a second protection pad, wherein the second connecting port is arranged in the left upper end of the workbench plate, the second adjusting rod is connected in the second connecting port in a rotating mode, the second limiting plate is connected to the left end and the right end of the second adjusting rod in a threaded mode, the lower end of the second limiting plate is connected in the second connecting port in a sliding mode, and the second protecti