CN219104126U - Intelligent metal tube float flowmeter calibrating device - Google Patents

Abstract

The utility model provides an intelligent metal tube float flowmeter calibration device, which is characterized in that: a stepping motor is fixedly arranged on the bracket, and a driving gear is fixedly arranged on a motor shaft; the driven gear is supported and installed on the bracket by the first plane bearing and the second plane bearing; the shaft hole of the driven gear is a screw hole; a metal tube float flowmeter is fixedly arranged on the bracket; the screw rod passes through the through holes of the first plane bearing and the second plane bearing, the diameter of which is larger than that of the screw rod, and the screw rod and the shaft hole of the driven gear form a screw rod nut structure to be matched; the top end of the screw rod is connected with a guide rod of the metal tube float flowmeter, and the guide rod of the metal tube float flowmeter is coaxial with the screw rod; the circuit board in the control box is respectively connected with the stepping motor, an external key interface of the metal tube float flowmeter and a computer. The utility model realizes the calibration of the scale of the on-site indication pointer of the float flowmeter indicator, the screen display and the remote transmission value.

Description

Intelligent metal tube float flowmeter calibrating device

Technical Field

The present disclosure relates to detection mechanisms, and particularly to a position state detection mechanism.

Background

The float of the intelligent metal tube float flowmeter is arranged in the measuring tube, when a measured medium flows through the float of the measuring tube from bottom to top, differential pressure is generated at the upper end and the lower end to form a lifting force, when the lifting force borne by the float is larger than the weight of the float immersed in fluid, the float rises, the area of an annular space is increased, the fluid flow speed at the annular space is rapidly reduced, the differential pressure between the upper end and the lower end of the float is reduced, the lifting force of the float is reduced until the lifting force is balanced with the weight of the float immersed in the fluid, the float is stabilized at a certain position, and the height of the position of the float corresponds to the flow of the measured medium. The magnetic steel is arranged in the floater, when the floater moves up and down along with the medium, the magnetic field changes along with the movement of the floater, the follow-up magnetic steel in the indicator is coupled with the magnetic steel in the floater to rotate and drive the pointer, the flow at the moment is indicated by the dial, the sensing magnetic steel on the follow-up magnetic steel shaft rotates at the same time, the magnetic field change is converted into an electric signal through the magnetic sensor, and the electric signal is subjected to A/D conversion, digital filtering, temperature compensation, microprocessor processing, D/A output and LCD liquid crystal display to display the instantaneous flow and the accumulated flow.

The intelligent metal tube float flowmeter can indicate the flow value on site through the pointer, and can also display the flow value through the liquid crystal screen or output the flow value in a remote transmission mode, and in order to ensure that the on-site indication value of the pointer is consistent with the liquid crystal display or remote transmission value, the indicator needs to be calibrated.

Disclosure of Invention

The utility model provides an intelligent metal tube float flowmeter calibration device, which aims to solve the defects in the prior art and realize calibration of an on-site indication pointer scale, a screen display and a remote transmission value of a float flowmeter indicator so as to keep the on-site indication pointer scale consistent with the screen display and the remote transmission value.

The technical scheme adopted for solving the technical problems is as follows:

an intelligent metal tube float flowmeter calibrating device which is characterized in that:

a stepping motor is fixedly arranged on the bracket, a motor shaft of the stepping motor extends upwards, and a driving gear is fixedly arranged on the motor shaft;

the driven gear is arranged between the first plane bearing and the second plane bearing, and is supported and arranged on the bracket by the first plane bearing and the second plane bearing;

the shaft hole of the driven gear is a screw hole;

a metal tube float flowmeter is fixedly arranged on the bracket;

the screw rod passes through the through holes of the first plane bearing and the second plane bearing, the diameter of which is larger than that of the screw rod, and the screw rod and the shaft hole of the driven gear form a screw rod nut structure to be matched;

the top end of the screw rod is connected with a guide rod of the metal tube float flowmeter, and the guide rod of the metal tube float flowmeter is coaxial with the screw rod;

the circuit board in the control box is respectively connected with the stepping motor, an external key interface of the metal tube float flowmeter and a computer.

Further: the bracket is provided with a bracket lower baffle plate, a bracket upper baffle plate and a bracket top plate from bottom to top;

the stepping motor is fixedly arranged on the lower partition plate of the bracket;

the first plane bearing and the second plane bearing are arranged on the upper partition plate of the bracket, and the lower partition plate of the bracket, the upper partition plate of the bracket and the top plate of the bracket are respectively provided with through holes with diameters larger than that of the screw rod;

the metal tube float flowmeter is arranged on the top plate of the bracket;

the screw rod passes through the lower partition plate of the bracket, the upper partition plate of the bracket and the top plate of the bracket, and the diameter of the screw rod is larger than that of the through hole of the screw rod.

Further: a pressure lever compresses and fixes the structure of the metal tube float flowmeter.

The utility model has the advantages that:

the utility model has simple structure and convenient manufacture, the stepping motor controls the ascending and descending positions of the screw rod through the screw-nut structure, the control is accurate, the intelligent metal tube float flowmeter can be accurately calibrated, the calibration operation is simple, the calibration record can be saved, and the working efficiency is greatly improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a structural diagram of the present utility model.

Reference numerals in the drawings:

1: a bracket; 11: a lower partition plate of the bracket; 12: a baffle plate is arranged on the bracket; 13: a bracket top plate; 2: a screw; 3: a driven gear; 41: a first planar bearing; 42: a second planar bearing; 5: a compression bar; 6: a metal tube float flowmeter; 7: a drive gear; 8: a stepping motor; 9: a control box; 10: and a computer.

Detailed Description

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art. In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "upper," "lower," "inner," "outer," "bottom," and the like as used in this specification are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1:

the utility model is provided with a bracket 1, wherein the bracket 1 is provided with a bracket lower baffle 11, a bracket upper baffle 12 and a bracket top plate 13 from bottom to top.

The stepping motor 8 is fixedly arranged on the lower partition plate 11 of the bracket, the motor shaft of the stepping motor 8 extends upwards, and the driving gear 7 is fixedly arranged on the motor shaft.

The first and second flat bearings 41 and 42 are mounted on the bracket upper partition 12, the driven gear 3 is mounted between the first and second flat bearings 41 and 42, and the first and second flat bearings 41 and 42 are supported and mounted on the bracket upper partition 12. The shaft hole of the driven gear 3 is a screw hole, and the bracket lower baffle 11, the bracket upper baffle 12, the first plane bearing 41, the second plane bearing 42 and the bracket top plate 13 are respectively provided with a through hole with the diameter larger than that of the screw rod 2.

The metal tube float flowmeter 6 is arranged on the bracket top plate 13, and a compression rod 5 compresses and fixes the structure of the metal tube float flowmeter 6.

A screw rod 2 passes through holes formed in the bracket lower partition plate 11, the bracket upper partition plate 12, the first plane bearing 41, the second plane bearing 42 and the bracket top plate 13, and is matched with a shaft hole of the driven gear 3 to form a screw rod nut structure.

The top end of the screw rod 2 is connected with a guide rod of the metal tube float flowmeter 6, and the guide rod of the metal tube float flowmeter 6 is coaxial with the screw rod 2.

The circuit board in the control box 9 is respectively connected with the stepping motor 8, an external key interface of the metal tube float flowmeter 6 and the computer 10.

The specific implementation method is as follows:

the forward and reverse rotation and the rotation position of the stepping motor are controlled through a button on the control box 9, the second gear 7 and the first gear 3 meshed with the second gear 7 are driven to rotate through the forward and reverse rotation and the rotation angle of the stepping motor 8, the rotation of the first gear 3 drives the screw rod 2 to move up and down, the screw rod 2 drives the guide rod of the metal tube float flowmeter 6 to move up and down, and the positions of floats in different flow rates are simulated.

The control box 9 is provided with three buttons connected with the circuit board, the buttons are connected with a key external interface on the metal tube float flowmeter 6, the metal tube float flowmeter 6 can be operated by the buttons on the control box 9 to read data of the metal tube float flowmeter 6 and send the data to the computer 10, a computer screen displays a remote transmission value, and the computer 10 can save the read data of the metal tube float flowmeter 6 as production data of the instrument.

Then, the in-situ indicator scale of the metal tube float flowmeter 6 is calibrated with the screen display remote transmission value.

The calibration operation and the data recording are integrated, and the calibration data is automatically archived.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (3)

1. An intelligent metal tube float flowmeter calibrating device which is characterized in that: a stepping motor (8) is fixedly arranged on the bracket (1), a motor shaft of the stepping motor (8) extends upwards, and a driving gear (7) is fixedly arranged on the motor shaft; the support (1) is provided with a first plane bearing (41) and a second plane bearing (42), the driven gear (3) is arranged between the first plane bearing (41) and the second plane bearing (42), and the driven gear is supported and arranged on the support (1) by the first plane bearing (41) and the second plane bearing (42); the shaft hole of the driven gear (3) is a screw hole; a metal tube float flowmeter (6) is fixedly arranged on the bracket (1); the screw rod (2) passes through the through holes with the diameters larger than that of the screw rod (2) which are arranged on the first plane bearing (41) and the second plane bearing (42), and is matched with the shaft hole of the driven gear (3) to form a screw rod nut structure; the top end of the screw rod (2) is connected with a guide rod of the metal tube float flowmeter (6), and the guide rod of the metal tube float flowmeter (6) is coaxial with the screw rod (2); the circuit board in the control box (9) is respectively connected with the stepping motor (8), an external key interface of the metal tube float flowmeter (6) and the computer (10).

2. An intelligent metal tube float flowmeter calibration device as set forth in claim 1 wherein: the bracket (1) is provided with a bracket lower baffle (11), a bracket upper baffle (12) and a bracket top plate (13) from bottom to top; the stepping motor (8) is fixedly arranged on the lower baffle plate (11) of the bracket; the first plane bearing (41) and the second plane bearing (42) are arranged on the bracket upper partition plate (12), and the bracket lower partition plate (11), the bracket upper partition plate (12) and the bracket top plate (13) are respectively provided with through holes with diameters larger than those of the screw rods (2); the metal tube float flowmeter (6) is arranged on the bracket top plate (13); the screw rod (2) passes through the bracket lower partition plate (11), the bracket upper partition plate (12) and the bracket top plate (13) to be provided with a through hole with a diameter larger than that of the screw rod (2).

3. An intelligent metal tube float flowmeter calibration device as set forth in claim 1 wherein: a pressure lever (5) presses and fixes the structure of the metal tube float flowmeter (6).

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