Calibration device for magnetostrictive liquid level meter

Abstract

The utility model discloses a magnetostriction liquidometer calibration device, which relates to the technical field of flowmeter calibration, and comprises a base, the top of the base is fixedly connected with two mounting plates, a scale is fixedly connected between the inner sides of the two mounting plates, the top of the base is fixedly connected with two mounting racks, and the two mounting racks are fixedly connected with the top of the base. A mounting groove is formed in the top of the mounting frame, a mounting rod is fixedly connected to the inner side of the mounting groove, a motor is fixedly connected to one side of the mounting plate on one side, and one end of a power output shaft of the motor penetrates through the mounting plate and extends to the other side of the mounting plate; one end of a power output shaft of the motor is fixedly connected with a first threaded rod, the outer side of the first threaded rod is in threaded connection with a movable plate, the magnetostriction liquid level meter calibration device is reasonable in structural design, the fixing effect on the magnetostriction liquid level meter can be improved, and when the magnetostriction liquid level meters of different specifications are fixed, the magnetostriction liquid level meter calibration device is convenient to use. And the fixing mechanism can be adjusted in real time according to requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter calibration technical field, concretely is a kind of magnetostrictive liquid level meter calibration device. BACKGROUND

[0002] At present, when the sensor of magnetostrictive liquid level meter works, the circuit part of sensor will excite pulse current on waveguide wire, and the current will generate pulse current magnetic field around waveguide wire when propagating along waveguide wire;There is a float outside the sensor probe rod of magnetostrictive liquid level meter, and the float can move up and down along the probe rod with the change of liquid level;There is a group of permanent magnetic ring inside the float;When pulse current magnetic field meets the magnetic ring magnetic field generated by float, the magnetic field around float changes, so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position of float, and the pulse is transmitted back along the waveguide wire at a fixed speed and is detected by detection mechanism. The time difference between pulse current and torsional wave can accurately determine the position of float, i.e. the position of liquid surface.

[0003] In the prior art with application number: 202420448106.7, patent name: a kind of magnetostrictive liquid level meter calibration, including bottom plate and fixedly installed on the top of bottom plate several inner tubes, the bottom plate is provided with lifting mechanism and adjusting mechanism, the lifting mechanism includes outer tube slidingly installed on the outer wall of several inner tubes, the top of several outer tubes is fixedly installed with top plate, the bottom of top plate is fixedly installed with two racks, the top of bottom plate is provided with two rack grooves, two racks are respectively connected with two rack grooves slidingly, the top of bottom plate is fixedly installed with support block. The utility model discloses by setting up lifting mechanism, when it is necessary to adjust the working surface height according to actual situation, can be started by starting double-shaft motor, double-shaft motor will drive the shaft on both sides, the shaft on both sides will drive the gear on it and the two racks on the bottom of top plate are engaged, but it only fixes magnetostrictive liquid level meter by the way of spring extrusion, this design has obvious limitation: on the one hand, the fixing effect of pure spring pressure is poor, and it is easy to loosen due to vibration or external force;On the other hand, the clamping plate adopts non-adjustable semicircular clamp structure, and the adaptability is insufficient, so it cannot flexibly adapt to the installation requirements of magnetostrictive liquid level meter with different diameter specifications, seriously affects the universality and installation stability of equipment, this rigid design not only reduces the fixing reliability, but also increases the difficulty of adaptation to different models of equipment, and there are significant defects in actual application, therefore, new technical scheme is needed to solve it. UTILITY MODEL CONTENTS

[0004] Clearly and completely describe the technical scheme in the embodiments of the utility model with the drawings in the embodiments of the utility model below, obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0005] To achieve the above object, the utility model provides the following technical scheme: a magnetostriction liquid level meter calibration device, including base, the top of base is fixedly connected with two mounting plates, the inside between two mounting plates is fixedly connected with scale, the top of base is fixedly connected with two mounting brackets, the top of mounting bracket is equipped with installation groove, the inside of installation groove is fixedly connected with mounting rod, through pressure mechanism, can make fixed mechanism to the magnetostriction liquid level meter and be firmly fixed, prevent fixed mechanism from vibrating or external force and lead to loosening, so that the fixed effect of magnetostriction liquid level meter can be improved, through clamping mechanism, when fixing different specifications of magnetostriction liquid level meter, can be in real time adjustment according to the demand of fixed mechanism, increase the application range of magnetostriction liquid level meter calibration device.

[0006] Preferably, one side of the mounting plate is fixedly connected with a motor, the power output shaft of the motor extends through the mounting plate and extends to the other side of the mounting plate, and the power output shaft of the motor is fixedly connected with a first threaded rod at one end. The first threaded rod moves the moving plate.

[0007] Preferably, the outside of the first threaded rod is screwed with a moving plate, the top of the moving plate is fixedly connected with a bar, the bottom of the bar is fixedly connected with an indicating ring, and the indicating ring is movably connected with the scale. The indicating ring cooperates with the bar to measure the magnetostriction liquid level meter.

[0008] Preferably, one side of the mounting plate is fixedly connected with a limiting rod, one end of the limiting rod extends through the moving plate and is fixedly connected with the other mounting plate. The limiting rod limits the movement of the moving plate.

[0009] Preferably, the outside of the mounting rod is sleeved with a compression spring, the outside of the mounting rod is movably connected with a mounting seat, the inside of the mounting seat is embedded with a friction sleeve, the inside of the friction sleeve is matched with the mounting rod, and the friction between the friction sleeve and the mounting rod generates damping force to limit the movement of the mounting seat.

[0010] Preferably, the top of the mounting seat is fixedly connected with a fixed plate, the inside of the fixed plate is rotatably connected with a second threaded rod, the top end of the second threaded rod extends through the fixed plate and extends to the top of the fixed plate, and the position of the clamping recess is adjusted by the second threaded rod.

[0011] Preferably, one side of the fixed plate is fixedly connected with a clamping protrusion, the outer side of the second threaded rod is screwed with a clamping recess, one side of the fixed plate and the inner side of the mounting groove are both fixedly connected with repelling magnets, the clamping recess and the inner side of the clamping protrusion are clamped with a magnetostrictive liquid level meter, and the outer side of the magnetostrictive liquid level meter is movably connected with a float.

[0012] Compared with the prior art, the magnetic liquid level meter calibration device has the advantages that:

[0013] 1. The magnetic liquid level meter calibration device, through the pressing mechanism, can stably fix the fixing mechanism to the magnetostrictive liquid level meter, prevent the fixing mechanism from loosening due to vibration or external force, and thus improve the fixing effect of the magnetostrictive liquid level meter.

[0014] 2. The magnetic liquid level meter calibration device, through the clamping mechanism, can adjust the fixing mechanism in real time according to the requirements when fixing different specifications of the magnetostrictive liquid level meter, and increase the application range of the magnetic liquid level meter calibration device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the magnetic liquid level meter calibration device;

[0016] Figure 2 It is a right view of the magnetic liquid level meter calibration device;

[0017] Figure 3 It is a perspective view of the mounting frame of the magnetic liquid level meter calibration device;

[0018] Figure 4 It is a front view of the magnetic liquid level meter calibration device;

[0019] In the figure: 100, base; 110, mounting plate; 120, scale; 130, motor; 131, first threaded rod; 140, moving plate; 141, bar; 142, indicating ring; 150, limiting rod; 200, mounting frame; 210, mounting groove; 220, mounting rod; 221, compression spring; 230, mounting seat; 231, friction sleeve; 240, fixed plate; 241, second threaded rod; 250, clamping protrusion; 260, clamping recess; 270, repelling magnet; 280, magnetostrictive liquid level meter; 281, float. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] Embodiment 1: Please refer to Figures 1-4 The utility model provides a magnetostriction liquid level meter calibration device, including base 100, two mounting plates 110 are fixedly connected between the inside of two mounting plates 110 and the top of base 100, the inside of two mounting plates 110 is fixedly connected with scale 120, one side mounting plate 110 one side is fixedly connected with motor 130, and the power output shaft one end of motor 130 penetrates mounting plate 110 and extends to the other side of mounting plate 110, and the power output shaft one end of motor 130 is fixedly connected with first threaded rod 131, and the outside of first threaded rod 131 is screwed with moving plate 140, and the top of moving plate 140 is fixedly connected with strip bar 141, and the bottom of strip bar 141 is fixedly connected with indicating ring 142, and indicating ring 142 is movably connected with scale 120, and one side mounting plate 110 one side is fixedly connected with limit rod 150, and the one end of limit rod 150 penetrates moving plate 140 and is fixedly connected with the other side mounting plate 110.

[0022] Specifically, the mounting rod 220 is attached to the friction sleeve 231 in the mounting seat 230, which increases the force required for the mounting seat 230 to move on the mounting rod 220, prevents the mounting seat 230 from moving easily, and generates a repulsive force by the two repelling magnets 270, which applies pressure to the clamping mechanism and provides pressure through the deformed compression spring 221, further increasing the clamping force of the clamping mechanism, so that the clamping mechanism can stably fix the magnetostriction liquid level meter 280.

[0023] Embodiment 2: Please refer to Figures 1-4The top of the base 100 is fixedly connected with two mounting racks 200, the top of the mounting rack 200 is provided with a mounting slot 210, the inner side of the mounting slot 210 is fixedly connected with a mounting rod 220, the outer side of the mounting rod 220 is sleeved with a compression spring 221, the outer side of the mounting rod 220 is movably connected with a mounting seat 230, the inner side of the mounting seat 230 is embedded with a friction sleeve 231, the inner side of the friction sleeve 231 is matched with the mounting rod 220, the top of the mounting seat 230 is fixedly connected with a fixed plate 240, the inner cavity of the fixed plate 240 is rotatably connected with a second threaded rod 241, the top end of the second threaded rod 241 penetrates through the fixed plate 240 and extends to the top of the fixed plate 240, one side of the fixed plate 240 is fixedly connected with a clamping protrusion 250, the outer side of the second threaded rod 241 is screwed with a clamping recess 260, one side of the fixed plate 240 and the inner side of the mounting slot 210 are both fixedly connected with repulsion magnets 270, the inner side between the clamping recess 260 and the clamping protrusion 250 is clamped with a magnetic liquid level meter 280, the outer side of the magnetic liquid level meter 280 is movably connected with a float 281.

[0024] Specifically, by rotating the second threaded rod 241, the clamping recess 260 mounted on the second threaded rod 241 is lowered to match the surface of the magnetic liquid level meter 280, and a V-shaped clamping angle is formed between the clamping recess 260 and the clamping protrusion 250, so that the clamping protrusion 250 cooperates with the clamping recess 260 to fix the magnetic liquid level meter 280 of different specifications.

[0025] Working principle: by matching the mounting rod 220 with the friction sleeve 231 in the mounting seat 230, the force required for the mounting seat 230 to move on the mounting rod 220 is increased, preventing the mounting seat 230 from moving easily, and the repulsion force generated by the two repulsion magnets 270 is used to press the clamping mechanism, and the pressure provided by the deformed compression spring 221 further increases the clamping force of the clamping mechanism, so that the clamping mechanism can stably fix the magnetic liquid level meter 280.

[0026] By rotating the second threaded rod 241, the clamping recess 260 mounted on the second threaded rod 241 is lowered to match the surface of the magnetic liquid level meter 280, and a V-shaped clamping angle is formed between the clamping recess 260 and the clamping protrusion 250, so that the clamping protrusion 250 cooperates with the clamping recess 260 to fix the magnetic liquid level meter 280 of different specifications.

[0027] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A calibration device for a magnetostrictive level gauge, comprising a base (100), characterized in that, Two mounting plates (110) are fixedly connected to the top of the base (100), and a scale (120) is fixedly connected between the inner sides of the two mounting plates (110). The top of the base (100) is fixedly connected to two mounting brackets (200), and the top of the mounting brackets (200) is provided with mounting grooves (210), and mounting rods (220) are fixedly connected to the inner side of the mounting grooves (210).

2. The magnetostrictive level gauge calibration device as described in claim 1, characterized in that, A motor (130) is fixedly connected to one side of the mounting plate (110). One end of the power output shaft of the motor (130) passes through the mounting plate (110) and extends to the other side of the mounting plate (110). A first threaded rod (131) is fixedly connected to one end of the power output shaft of the motor (130).

3. The magnetostrictive level gauge calibration device as described in claim 2, characterized in that, A movable plate (140) is screwed to the outside of the first threaded rod (131). A strip rod (141) is fixedly connected to the top of the movable plate (140). An indicator ring (142) is fixedly connected to the bottom of the strip rod (141). The indicator ring (142) is movably connected to the scale (120).

4. The magnetostrictive level gauge calibration device as described in claim 3, characterized in that, A limiting rod (150) is fixedly connected to one side of the mounting plate (110) on one side. One end of the limiting rod (150) passes through the movable plate (140) and is fixedly connected to the mounting plate (110) on the other side.

5. The magnetostrictive level gauge calibration device as described in claim 1, characterized in that, A compression spring (221) is sleeved on the outer side of the mounting rod (220), and a mounting base (230) is movably connected to the outer side of the mounting rod (220). A friction sleeve (231) is embedded in the inner side of the mounting base (230), and the inner side of the friction sleeve (231) is in contact with the mounting rod (220).

6. The magnetostrictive level gauge calibration device as described in claim 5, characterized in that, A fixing plate (240) is fixedly connected to the top of the mounting base (230), and a second threaded rod (241) is rotatably connected to the inner cavity of the fixing plate (240). The top end of the second threaded rod (241) passes through the fixing plate (240) and extends to the top of the fixing plate (240).

7. The magnetostrictive level gauge calibration device as described in claim 6, characterized in that, A clamping protrusion (250) is fixedly connected to one side of the fixing plate (240), and a clamping recess (260) is screwed to the outer side of the second threaded rod (241). A repulsive magnet (270) is fixedly connected to one side of the fixing plate (240) and the inner side of the mounting groove (210). A magnetostrictive level gauge (280) is snapped between the inner side of the clamping recess (260) and the clamping protrusion (250), and a float (281) is movably connected to the outer side of the magnetostrictive level gauge (280).

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