A magnetic pole frame for magnetostrictive liquid level meter

Abstract

This utility model relates to the technical field of instrumentation, specifically providing a magnetic pole frame for a magnetostrictive level gauge, aiming to solve the problem of the magnetostrictive probe occupying space above the container in existing magnetostrictive level gauges. The magnetic pole frame includes a float, a probe fixing end, a magnetostrictive probe, a magnetic component, and a vertical movement component. Both the vertical movement component and the probe fixing end are fixed to the outer side of the container. The magnetostrictive probe is externally mounted on the outside of the container via the probe fixing end, without occupying additional space above the container. When the liquid level in the container changes, the float moves up and down with the liquid level, driving a slider along a guide rail via a rope, thereby causing the magnetic component to move synchronously. During this movement, the magnetic component interacts with the magnetostrictive wires, utilizing the magnetostrictive effect to sense the height of the magnetic component, thus accurately measuring the liquid level.

Description

Technical Field

[0001] This utility model relates to the technical field of instruments and meters, specifically providing a magnetostrictive level gauge magnetic pole frame. Background Technology

[0002] Currently, conventional magnetostrictive level gauges include a magnetostrictive probe and a float. The magnetostrictive probe includes a probe rod, and the float passes through the probe rod and slides along the length of the probe rod.

[0003] In some technological upgrades, some containers need to have their level gauges upgraded, but the space for the existing container equipment is limited, and there is not enough space above the container to install conventional magnetostrictive level gauges.

[0004] Therefore, there is an urgent need for a magnetostrictive level gauge magnetic pole frame to solve the problem of the magnetostrictive probe occupying the space above the container in existing magnetostrictive level gauges. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that the magnetostrictive probe in the existing magnetostrictive level gauge occupies the space above the container.

[0006] In a first aspect, this utility model provides a magnetostrictive level gauge magnetic pole frame, comprising: a probe fixing end, fixed to the outer side of a container; a magnetostrictive probe, arranged along a third direction, including a probe rod and a top component, the probe rod being fixed to the probe fixing end, and a magnetostrictive wire being disposed inside the probe rod; a magnetic force assembly, arranged along a first direction, the probe rod passing through the magnetic force assembly; a float, placed inside the container; and a vertical moving assembly, including a guide rail and a slider, the guide rail being arranged along a third direction and fixed to the outer side of the container, the slider being slidably connected to the guide rail, the float being connected to the slider via a rope, and the magnetic force assembly being fixed to the slider; the first direction is perpendicular to the third direction.

[0007] By adopting the above technical solution, the magnetostrictive probe is externally attached to the outside of the container through the fixed end of the probe, without occupying additional space above the container; when the liquid level in the container changes, the float moves up and down with the change in liquid level, and drives the slider to slide up and down along the guide rail through the rope, thereby driving the magnetic component to move synchronously; during the movement, the magnetic component interacts with the magnetostrictive wire located in the probe rod, and uses the magnetostrictive effect to sense the height of the magnetic component, thereby accurately measuring the liquid level height.

[0008] In the specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, the magnetic component includes a magnetic frame and a magnet. The first end of the magnetic frame is connected to the slider, and the second end of the magnetic frame has two mounting arms arranged in a U-shape. The outer surfaces of the two mounting arms are provided with multiple receiving holes, which are arranged in a row in a first direction. The magnet is installed in the receiving hole, and a sealing element is installed in the receiving hole to limit the magnet.

[0009] By adopting the above technical solution, the sealing component can stably fix the magnet in the receiving hole, the magnets on the two mounting arms can form a stable magnetic field, the probe passes through the space between the two mounting arms, and the magnetic field can interact with the magnetostrictive wires located in the probe to sense the height of the magnetic component using the magnetostrictive effect.

[0010] In a specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, the magnetostrictive level gauge further includes a magnetic pole frame, which is fixedly connected to the magnetic force component and the slider. The magnetic pole frame is configured to adjust the relative position of the magnetic force component and the slider.

[0011] By adopting the above technical solution, the setting of the magnetic pole frame allows for fine adjustment of the relative position of the magnetic component and the slider to adapt to different installation requirements, ensuring that the magnetic component and the magnetostrictive wire in the probe can interact stably and accurately, thereby improving the accuracy of liquid level measurement.

[0012] In the specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, the magnetic pole frame includes: a U-shaped plate, a fixing plate, and a mounting plate. The U-shaped plate is placed at both ends of the slider along a third direction, and the fixing plate is fixed to the side of the U-shaped plate away from the container along a first direction. The mounting plate is L-shaped, with one side attached and fixed to the side of the fixing plate away from the U-shaped plate, and the other side perpendicular to the mounting plate and fixedly connected to the magnetic component.

[0013] In the specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, one of the fixing plate and the U-shaped plate has a first elongated hole arranged in a third direction, and a first mounting bolt for fixing the fixing plate and the U-shaped plate passes through the first elongated hole.

[0014] By adopting the above technical solution, changing the position of the first mounting bolt passing through the first elongated hole can change the position of the fixing plate and the U-shaped plate in the third direction, so that the distance between the two U-shaped plates in the third direction matches the slider.

[0015] In the specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, one of the mounting plate and the fixing plate has a second elongated hole arranged in a third direction, and a second mounting bolt that fixes the mounting plate and the fixing plate passes through the second elongated hole.

[0016] By adopting the above technical solution, changing the position of the second mounting bolt passing through the second elongated hole can change the position of the mounting plate and the fixing plate in the third direction, thereby adjusting the position of the magnetic component in the third direction for fine-tuning.

[0017] In the specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, the magnetic pole frame further includes a positioning bolt, which is perpendicular to the fixing plate and threaded with the fixing plate. A clearance hole is provided on the U-shaped plate, and the positioning bolt passes through the clearance hole and abuts against the slider.

[0018] By adopting the above technical solution, the positioning bolt can fix the U-shaped plate, the fixing plate and the slider in the first direction, ensuring the stability of the three in the first direction, which helps to improve the stability of the magnetic component.

[0019] In the specific embodiment of the magnetostrictive level gauge magnetic pole frame described above, the probe rod is threaded with an upper nut and a lower nut, which are located on the upper and lower sides of a probe fixing end, respectively.

[0020] By adopting the above technical solution, the upper nut and lower nut clamp the probe fixing end, thus fixing the probe rod to the probe fixing end.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The magnetostrictive level gauge provided by this utility model includes a probe fixing end, a magnetostrictive probe, a magnetic component, a float, and a vertical moving component. The probe fixing end is fixed to the outer side of the container. The magnetostrictive probe is arranged along a third direction and includes a probe rod and a top component. The probe rod is fixed to the probe fixing end, and a magnetostrictive wire is arranged inside the probe rod. The magnetic component is arranged along a first direction, and the probe rod passes through the magnetic component. The float is placed inside the container. The vertical moving component includes a guide rail and a slider. The guide rail is arranged along a third direction and fixed to the outer side of the container. The slider is slidably connected to the guide rail. The float is connected to the slider through a rope, and the magnetic component is fixed to the slider. The first direction is perpendicular to the third direction. The magnetostrictive probe is externally mounted on the outside of the container via its fixed end, without taking up additional space above the container. When the liquid level inside the container changes, the float moves up and down with the liquid level, driving the slider to slide up and down along the guide rail via a rope, thereby causing the magnetic component to move synchronously. During the movement, the magnetic component interacts with the magnetostrictive wire located in the probe rod, using the magnetostrictive effect to sense the height of the magnetic component, and thus accurately measure the liquid level. Attached Figure Description

[0023] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0024] Figure 1 This is an installation diagram of the magnetostrictive level gauge provided by this utility model;

[0025] Figure 2 This is a schematic diagram of the magnetic component provided by this utility model;

[0026] Figure 3 This is a schematic diagram of the magnetic pole frame provided by this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Float; 2. Probe fixing end; 3. Magnetostrictive probe; 31. Probe rod; 32. Top part; 33. Upper nut; 34. Lower nut; 4. Magnetic assembly; 41. Magnetic frame; 411. Mounting arm; 412. Accommodation hole; 413. Sealing part; 42. Magnet; 5. Slider; 6. Magnetic pole frame; 61. U-shaped plate; 62. Fixing plate; 63. Mounting plate; 64. First mounting bolt; 65. Second mounting bolt; 66. Positioning bolt; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0029] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0030] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] To address the issue of magnetostrictive probes occupying space above the container in existing magnetostrictive level gauges, combined with... Figure 1 As shown, this utility model provides a magnetostrictive level gauge magnetic pole frame, which hangs the main body of the magnetostrictive level gauge on the outside of the container.

[0033] For ease of description, this utility model defines a first direction X, a second direction Y, and a third direction Z, where any two of the first direction X, the second direction Y, and the third direction Z are perpendicular to each other. Specifically, the first direction X and the second direction Y are horizontal directions, and the third direction Z is a vertical direction.

[0034] like Figure 1 As shown, the magnetostrictive level gauge's magnetic pole frame includes a float 1, a probe fixing end 2, a magnetostrictive probe 3, a magnetic force assembly 4, and a vertical movement assembly. The vertical movement assembly and the probe fixing end 2 are both fixed to the outer side of the container. The magnetostrictive probe 3 is vertically positioned along the third direction Z and fixed to the probe fixing end 2, which supports the magnetostrictive probe 3. The float 1 is located inside the container. The float 1 drives the sliding part in the vertical movement assembly and the magnetic force assembly 4 to reciprocate along the third direction Z via a rope. The magnetic force assembly 4 has a stable magnetic field, and the magnetostrictive probe passes through the magnetic force assembly 4.

[0035] The magnetostrictive probe 3 includes a probe rod 31 and a top component 32. A magnetostrictive wire is installed inside the probe rod 31. A circuit board is installed inside the top component 32. The circuit board has a main control electronic module that can send narrow electromagnetic pulses to the magnetostrictive wire. The electromagnetic pulses are conducted along the magnetostrictive wire. The magnetic field generated by the electromagnetic pulses conducted along the magnetostrictive wire interacts with the magnetic field generated by the magnetic component 4, generating a torsional stress wave on the magnetostrictive wire. This torsional stress wave returns to the circuit board along the magnetostrictive wire. The circuit board, through precision circuitry, can accurately calculate the time interval between the sending of the narrow electromagnetic pulse and the return of the torsional stress wave, and use this to calculate the height of the magnetic component 4. Based on the height of the magnetic component 4, the height of the float 1 (i.e., the liquid level) is then calculated.

[0036] The vertical moving component includes a guide rail and a slider 5. The guide rail is set along the third direction Z and fixed to the outer side of the container. The slider 5 is slidably connected to the guide rail. The float 1 is connected to the slider 5 via a rope. The magnetic component 4 is fixed to the slider 5. When the liquid level in the container changes, the float 1 moves up and down with the change in liquid level, driving the slider 5 to slide up and down along the guide rail via the rope, thereby driving the magnetic component 4 to move synchronously. During the movement, the magnetic component 4 interacts with the magnetostrictive wire located in the probe 31. The height of the magnetic component 4 is sensed by the magnetostrictive effect, thereby accurately measuring the liquid level.

[0037] It should be noted that the height of the float 1 is negatively correlated with the height of the magnetic component 4; that is, the higher the float 1 is, the lower the height of the magnetic component 4 is, and vice versa. The sum of the heights of the float 1 and the magnetic component 4 is a fixed value.

[0038] The probe rod 31 is threaded with an upper nut 33 and a lower nut 34, which are located on the upper and lower sides of a probe fixing end 2, respectively. By clamping the upper nut 33 and the lower nut 34 to the probe fixing end 2, the probe rod 31 can be fixed to the probe fixing end 2.

[0039] The magnetic component 4 includes a magnetic frame 41 and magnets 42. The first end of the magnetic frame 41 is connected to the slider 5, and the second end of the magnetic frame 41 has two mounting arms 411 arranged in a U-shape. Multiple receiving holes 412 are formed on the outer surfaces of the two mounting arms 411, arranged in a row along the first direction X. The magnets 42 are installed within the receiving holes 412, and a sealing element 413 is installed within each receiving hole 412 to limit their position. The sealing element 413 stably fixes the magnets 42 within the receiving holes 412. The magnets 42 on the two mounting arms 411 can form a stable magnetic field. A probe 31 passes through the space between the two mounting arms 411, and the magnetic field interacts with the magnetostrictive wires located in the probe 31 to sense the height of the magnetic component 4 using the magnetostrictive effect.

[0040] For example, the sealing element 413 is a flat-end set bolt, and the sealing element 413 is threadedly connected to the mounting arm 411 to seal and fix the magnet 42.

[0041] The magnetostrictive level gauge also includes a magnetic pole frame 6, which is fixedly connected to the magnetic component 4 and the slider 5. The magnetic pole frame 6 is configured to adjust the relative position of the magnetic component 4 and the slider 5. The magnetic pole frame 6 allows for fine-tuning of the relative position of the magnetic component 4 and the slider 5 to adapt to different installation requirements, ensuring stable and accurate interaction between the magnetic component 4 and the magnetostrictive wire in the probe 31, thus improving the accuracy of level measurement. In practical applications, operators can adjust the position of the magnetic pole frame 6 to change the relative position of the magnetic component 4 and the slider 5, thereby achieving the best measurement results.

[0042] Specifically, the magnetic pole frame 6 includes a U-shaped plate 61, a fixing plate 62, and a mounting plate 63. The U-shaped plate 61 is placed at both ends of the slider 5 along the third direction Z. The fixing plate 62 is fixed to the side of the U-shaped plate 61 away from the container along the first direction X. The mounting plate 63 is L-shaped, with one side attached and fixed to the side of the fixing plate 62 away from the U-shaped plate 61, and the other side perpendicular to the mounting plate 63 and fixedly connected to the magnetic component 4.

[0043] For example, one of the fixing plate 62 and the U-shaped plate 61 has a first elongated hole arranged in the third direction Z, and a first mounting bolt 64 that fixes the fixing plate 62 and the U-shaped plate 61 passes through the first elongated hole. Changing the position of the first mounting bolt 64 passing through the first elongated hole can change the position of the fixing plate 62 and the U-shaped plate 61 in the third direction Z, so that the distance between the two U-shaped plates 61 in the third direction Z is adapted to the slider 5.

[0044] For example, one of the mounting plate 63 and the fixing plate 62 has a second elongated hole arranged in the third direction Z, through which a second mounting bolt 65, which fixes the mounting plate 63 and the fixing plate 62, passes. Changing the position of the second mounting bolt 65 passing through the second elongated hole can change the position of the mounting plate 63 and the fixing plate 62 in the third direction Z, thereby adjusting the position of the magnetic component 4 in the third direction Z for fine-tuning.

[0045] For example, the magnetic pole frame 6 also includes a positioning bolt 66, which is perpendicular to the fixing plate 62 and threaded onto it. A clearance hole is provided on the U-shaped plate 61, through which the positioning bolt 66 passes and abuts against the slider 5. The positioning bolt 66 can fix the U-shaped plate 61, the fixing plate 62, and the slider 5 in the first direction X, ensuring their stability in the first direction X and contributing to the stability of the magnetic assembly 4. Furthermore, after the positioning bolt 66 is loosened, the U-shaped plate 61 can move relative to the slider 5 in the second direction Y, changing the position of the magnetic pole frame 6 in the second direction Y.

[0046] In summary, the working principle of the magnetostrictive level gauge magnetic pole frame provided by this utility model is as follows:

[0047] When the liquid level in the container changes, float 1 moves up and down with the liquid level, driving slider 5 to slide up and down along the guide rail via a rope, thereby causing magnetic component 4 to move synchronously. The main control electronic module can send narrow electromagnetic pulses to the magnetostrictive line, and the electromagnetic pulses are conducted along the magnetostrictive line. The magnetic field generated by the electromagnetic pulses conducted along the magnetostrictive line interacts with the magnetic field generated by magnetic component 4, generating a torsional stress wave on the magnetostrictive line. The torsional stress wave returns to the circuit board along the magnetostrictive line. The circuit board can accurately calculate the time interval between sending the narrow electromagnetic pulse and the returning torsional stress wave through precision circuitry, and use this to calculate the height of magnetic component 4. Then, based on the height of magnetic component 4, the height of float 1 (i.e., the liquid level height) is calculated.

[0048] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A magnetostrictive liquid level gauge magnet yoke, characterized by, include: The probe fixing end (2) is fixed to the outer side of the container; A magnetostrictive probe (3) is arranged along a third direction and includes a probe rod (31) and a top part (32). The probe rod (31) is fixed to the probe fixing end (2), and a magnetostrictive wire is provided inside the probe rod (31). A magnetic component (4) is arranged along a first direction, and the probe (31) passes through the magnetic component (4); A float (1) is placed inside the container; The vertical moving component includes a guide rail and a slider (5). The guide rail is arranged along a third direction and fixed to the outer side of the container. The slider (5) is slidably connected to the guide rail. The float (1) is connected to the slider (5) by a rope. The magnetic component (4) is fixed to the slider (5). The first direction is perpendicular to the third direction.

2. The magnetostrictive liquid level gauge magnet pole piece according to claim 1, characterized in that The magnetic component (4) includes a magnetic frame (41) and a magnet (42). The first end of the magnetic frame (41) is connected to the slider (5). The second end of the magnetic frame (41) has two mounting arms (411) arranged in a U-shape. The outer side of the two mounting arms (411) is provided with a plurality of receiving holes (412). The plurality of receiving holes (412) are arranged in a row in a first direction. The magnet (42) is installed in the receiving hole (412). A sealing member (413) is installed in the receiving hole (412) to limit the magnet (42).

3. The magnetostrictive liquid level gauge magnet pole piece of claim 1, wherein, The magnetostrictive level gauge also includes a magnetic pole frame (6), which is fixedly connected to the magnetic force component (4) and the slider (5). The magnetic pole frame (6) is configured to adjust the relative position of the magnetic force component (4) and the slider (5).

4. The magnetostrictive liquid level gauge magnet pole piece of claim 3, wherein, The magnetic pole frame (6) includes a U-shaped plate (61), a fixing plate (62), and a mounting plate (63). The U-shaped plate (61) is placed at both ends of the slider (5) along a third direction. The fixing plate (62) is fixed to the side of the U-shaped plate (61) away from the container along a first direction. The mounting plate (63) is L-shaped, with one side attached and fixed to the side of the fixing plate (62) away from the U-shaped plate (61), and the other side perpendicular to the mounting plate (63) and fixedly connected to the magnetic component (4).

5. The magnetostrictive liquid level gauge magnet pole piece of claim 4, wherein, One of the fixing plate (62) and the U-shaped plate (61) has a first elongated hole arranged in a third direction, and a first mounting bolt (64) for fixing the fixing plate (62) and the U-shaped plate (61) passes through the first elongated hole.

6. The magnetostrictive level gauge magnetic pole frame according to claim 4, characterized in that, One of the mounting plate (63) and the fixing plate (62) has a second elongated hole arranged in a third direction, and a second mounting bolt (65) for fixing the mounting plate (63) and the fixing plate (62) passes through the second elongated hole.

7. The magnetostrictive liquid level gauge magnet pole piece of claim 4, wherein, The magnetic pole frame (6) also includes a positioning bolt (66), which is perpendicular to the fixing plate (62) and threaded with the fixing plate (62). The U-shaped plate (61) has a clearance hole, through which the positioning bolt (66) passes and abuts against the slider (5).

8. The magnetostrictive liquid level gauge magnet pole piece of claim 1, wherein, The upper and lower nuts (33, 34) are threadedly connected to the probe rod (31) and are respectively located on the upper and lower sides of the probe fixing end (2).

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