Metering calibration device for high-precision pipeline flowmeter

Abstract

The utility model discloses a high-precision pipeline flowmeter metering calibration device, which belongs to the technical field of calibration equipment, and comprises a vertical frame, a first driver is arranged on the vertical frame, the output end of the first driver is provided with a two-way screw, the vertical frame is provided with a limiting groove, and the limiting groove is provided with a second driver. The end, extending into the limiting groove, of the two-way screw is rotationally connected with the limiting groove, the two-way screw is in threaded connection with two sliding plates which are symmetrically arranged up and down, the width of the sliding plates is consistent with that of the limiting groove, and the ends, extending out of the limiting groove, of the sliding plates are each provided with a bearing seat. The first driver drives the bidirectional screw rod to rotate, so that the sliding plates on the upper side and the lower side move at the same time under the limitation of the limiting grooves and move in the direction close to each other, the flow meter is clamped between the two bearing seats, and the flow meters of different specifications can be clamped and limited through the structure; and meanwhile, the synchronous relative movement of the bearing seat can automatically drive the flowmeter to be aligned with the center of the pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of calibration equipment, and specifically relates to a high-precision pipeline flowmeter measurement calibration device. BACKGROUND

[0002] The transportation of gas and liquid is usually carried out in a pipeline, and the transportation in the pipeline often uses a flowmeter. The flowmeter is an instrument for measuring the flow rate of fluid in a pipeline. The flowmeter is divided into differential pressure flowmeters, rotor flowmeters, throttling flowmeters, slit flowmeters, volumetric flowmeters, electromagnetic flowmeters, and ultrasonic flowmeters. According to the medium classification, there are liquid flowmeters and gas flowmeters.

[0003] The flowmeter calibration device disclosed in the patent publication CN219015428U adjusts the distance between the two sliding seats, then operates the adjusting support plate to adjust the adjusting support plate to the appropriate position, then places the two ends of the flowmeter on the adjusting support plates on the two placing seats, adjusts the height of the adjusting support plate by the electric telescopic rod, so that the subsequent connecting plates are aligned and connected, then adjusts the clamping plate to abut against the flowmeter, so that the flowmeter can be clamped and limited between the two adjusting support plates and the two clamping plates, then operates the connecting plates on the first connecting seat and the second connecting seat to make the two connecting plates communicate with the two ends of the flowmeter, so that water can flow into the flowmeter through the water inlet pipe, and then the water in the flowmeter is discharged through the drain pipe, thereby calibrating and detecting the flowmeter. The adjusting distance between the two sliding seats by the sliding mechanism and the clamping and limiting of the adjusting support plate and the clamping plate by the clamping mechanism can improve the adaptability of the calibration device to a certain extent.

[0004] However, the above structure can calibrate the flowmeters of different specifications, but each time the flowmeters of different specifications are calibrated, the position of the adjusting support plate driven by the electric telescopic rod needs to be adjusted again to move in the height direction, so that the connecting plates can be aligned with the flowmeter, and the water can flow into the flowmeter through the pipeline. It is troublesome to use. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the height position of the adjusting support plate needs to be adjusted again each time the flowmeters of different specifications are calibrated, so that the connecting plates can be aligned with the flowmeter, and it is troublesome to use.

[0006] The utility model provides a technical scheme for solving above -mentioned technical problem provides a kind of high-precision pipeline flowmeter measurement calibration device, including workbench, support frame is equipped on the workbench, pipeline is inserted in the support frame, mobile device is equipped on the workbench, bottom plate is equipped on the mobile device, automatic centering device is equipped on the bottom plate, the automatic centering device includes the stand on the bottom plate, first driver is equipped on the stand, the output of first driver is equipped with two-way screw rod, limit slot is opened in the stand, one end of two-way screw rod is rotatably connected with limit slot, two symmetrically arranged slide plates are threadedly connected on two-way screw rod, the width of slide plate is consistent with limit slot, the end of slide plate extending out of limit slot is equipped with bearing seat, the side of bearing seat mutually close is equipped with arc slot.

[0007] As a further scheme of the utility model, the mobile device includes two symmetrically arranged connecting plates on the upper surface of the workbench, a screw rod is rotatably arranged between the connecting plates, a second driver is arranged on one of the connecting plates, one end of the screw rod extending out of the connecting plate is connected to the output end of the second driver, two moving seats are threadedly connected to the screw rod, and the bottom plate is located between the moving seats.

[0008] As a further scheme of the utility model, the center point between the bearing seats overlaps the extension line of the center point of the pipeline.

[0009] As a further scheme of the utility model, the bottom plate is provided with an extension rod supporting the bearing seats below.

[0010] As a further scheme of the utility model, the workbench is provided with a control screen, and the first driver and the second driver are electrically connected to the control screen.

[0011] As a further scheme of the utility model, two guide rods are symmetrically arranged between the connecting plates and relative to the screw rod, and the moving seats are slidably connected to the guide rods.

[0012] Compared with the prior art, the utility model has the following advantages: by setting the automatic centering device, the flowmeter is placed on the bearing seat below, the first driver drives the two-way screw rod to rotate, the upper and lower slide plates move simultaneously under the limitation of the limit slot, and move in the direction of approaching each other, the flowmeter is clamped between the two bearing seats, this structure not only can clamp and limit different specifications of flowmeters, but also the synchronous relative movement of the bearing seats can automatically drive the center of the flowmeter and the pipeline to align, so that the centering adjustment is not needed every time during the calibration of different specifications of flowmeters, and the use convenience of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1It is a perspective view of the high-precision pipeline flowmeter measurement calibration device.

[0014] Figure 2 It is a mobile device structure schematic view of the high-precision pipeline flowmeter measurement calibration device.

[0015] As shown in the figure: 1, workbench;2, support frame;3, pipeline;4, bottom plate;5, stand;6, first driver;7, bidirectional screw;8, limit slot;9, slide plate;10, support seat;11, arc slot;12, connecting plate;13, lead screw;14, second driver;15, moving seat;16, telescopic rod;17, control screen;18, guide rod. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] In the description of the utility model, it should be explained that, unless explicitly defined and limited, the terms "mount", "provided with", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0018] In combination with the drawings Figure 1The utility model discloses a high-precision pipeline flowmeter measurement calibration device, including the workbench 1, the support frame 2 is equipped on the workbench 1, the pipeline 3 is inserted in the support frame 2, the moving device is equipped on the workbench 1, the bottom plate 4 is equipped on the moving device, the automatic centring device is equipped on the bottom plate 4, the automatic centring device includes the stand 5 on the bottom plate 4, the first driver 6 is equipped on the stand 5, the output of the first driver 6 is equipped with two -way screw rod 7, the stand 5 is opened in the limiting slot 8, the one end of two -way screw rod 7 extends into the limiting slot 8 and is rotatably connected with the limiting slot 8, the two -way screw rod 7 is screw -threaded with two symmetrically arranged slide plates 9, the width of slide plate 9 is consistent with the limiting slot 8, the one end of slide plate 9 extending out of the limiting slot 8 is equipped with the bearing seat 10, the center point between bearing seat 10 is overlapped with the center point extension line of pipeline 3, the arc slot 11 is equipped on the side of bearing seat 10 and is close to each other, the telescopic rod 16 that the bearing of bearing seat 10 below is equipped on the bottom plate 4.

[0019] Combine the attached Figure 1 、 Figure 2 The moving device includes the connecting plate 12 symmetrically arranged on the both sides of the workbench 1, the lead screw 13 is rotatably arranged between the connecting plate 12, the second driver 14 is arranged on one of the connecting plate 12, the output end of the second driver 14 is connected with the one end of the lead screw 13 extending out of the connecting plate 12, the two moving seats 15 are screw-threaded on the lead screw 13, the bottom plate 4 is located between the moving seats 15, the two guide rods 18 are symmetrically arranged between the connecting plate 12 and relative to the lead screw 13, the moving seat 15 is slidably connected with the guide rod 18, the control screen 17 is arranged on the workbench 1, the first driver 6 and the second driver 14 are electrically connected with the control screen 17.

[0020] In the specific implementation, first, the flowmeter is placed in the arc slot of the bearing seat below, then the first driver is started to drive the two-way screw rod to rotate, so that the slide plates on the upper and lower sides move simultaneously under the limitation of the limiting slot and move in the direction of approaching each other, and the flowmeter is clamped between the two bearing seats, this structure can not only clamp and limit different specifications of flowmeters, but also the synchronous relative movement of the bearing seats can automatically drive the center alignment of the flowmeter and the pipeline, so that the center adjustment is not needed every time during the calibration of different specifications of flowmeters, and the use convenience of the device is improved.

[0021] Then the second driver is started to drive the lead screw to rotate, and under the guidance of the guide rod, the moving seat moves towards the direction of the pipeline until the pipeline is connected with the flowmeter, so that the flowmeter is connected with the pipeline, so that the flowing water can be introduced into the flowmeter through the water inlet pipe, and then the flowmeter is calibrated and detected.

[0022] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A high-precision pipeline flowmeter metrological calibration device, comprising a worktable (1), characterized in that: The workbench (1) is provided with a support frame (2), the support frame (2) is inserted with a pipeline (3), the workbench (1) is provided with a moving device, the moving device is provided with a bottom plate (4), the bottom plate (4) is provided with an automatic centering device, the automatic centering device comprises a stand (5) located on the bottom plate (4), the stand (5) is provided with a first driver (6), the output end of the first driver (6) is provided with a bidirectional screw (7), the stand (5) is provided with a limiting groove (8), one end of the bidirectional screw (7) extending into the limiting groove (8) is rotatably connected with the limiting groove (8), the bidirectional screw (7) is threadedly connected with two symmetrically arranged slide plates (9) above and below, the width of the slide plate (9) is consistent with the limiting groove (8), and the end of the slide plate (9) extending out of the limiting groove (8) is provided with a bearing seat (10), and the side of the bearing seat (10) close to each other is provided with an arc-shaped groove (11).

2. A high precision pipeline flow meter calibration device as claimed in claim 1, wherein: The moving device comprises two symmetrically arranged connecting plates (12) located on the workbench (1), the connecting plates (12) are rotatably provided with a lead screw (13) therebetween, one of the connecting plates (12) is provided with a second driver (14), one end of the lead screw (13) extending out of the connecting plate (12) is connected with the output end of the second driver (14), the lead screw (13) is threadedly connected with two moving seats (15), and the bottom plate (4) is located between the moving seats (15).

3. A high precision pipeline flow meter calibration device as claimed in claim 1, wherein: The center points between the bearing seats (10) overlap with the extension line of the center points of the pipeline (3).

4. A high precision pipeline flow meter calibration device as claimed in claim 1, wherein: The bottom plate (4) is provided with a telescopic rod (16) supporting the bearing seat (10) below.

5. A high precision pipeline flow meter calibration device as claimed in claim 2, wherein: The workbench (1) is provided with a control screen (17), and the first driver (6) and the second driver (14) are electrically connected with the control screen (17).

6. A high precision pipeline flow meter calibration device as claimed in claim 2, wherein: Two guide rods (18) are symmetrically arranged between the connecting plates (12) and relative to the lead screw (13), and the moving seat (15) is slidably connected with the guide rod (18).

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