A kind of paddle-rotating material level sensor

Abstract

The utility model provides a rotary resistance material level sensor, including: a shell assembly including an upper shell and a lower shell detachably connected to the upper shell, a step hole is opened in the lower shell along the axial direction, and a partition plate is installed in the small diameter section of the step hole; a transmission assembly includes a first transmission shaft, a first magnetic component arranged on the first transmission shaft, a second transmission shaft, and a second magnetic component arranged on the second transmission shaft; a detection blade is arranged on the other end of the second transmission shaft; a driving assembly includes a driving component and a control switch component both arranged in the placement space. In the utility model, because a partition plate is installed in the small diameter section of the step hole, and the first transmission shaft drives the second transmission shaft to rotate through the magnetic component, it is possible to prevent materials from flowing out of the shell assembly into the external environment, thereby avoiding the phenomenon of environmental pollution, thereby greatly improving the practical effect of the rotary resistance material level sensor of the utility model.

Description

Technical Field

[0001] The utility model relates to the technical field of material level sensors, in particular to a rotary resistance material level sensor. Background Art

[0002] In the process of production line or logistics automation, the material level control of the silo is an indispensable part of automatic control. At present, the most widely used material level sensor for silos is the rotary resistance material level sensor, that is, there is a sensing device at the back end and a material level detection piece connected to the sensing device at the front end. The material level detection piece is a horizontal thin piece that can rotate around the middle transmission shaft. When the thin piece rotates and encounters resistance, the sensing device at the back end can determine whether it encounters material according to the size of the resistance and the rotation position of the thin piece, and determine the height of the material level, etc.

[0003] In practice, the existing paddle level sensor usually adopts a rubber pad sealing method, which results in that in the working environment of granular, powdery and harmful materials, the materials can easily enter the paddle level sensor, thus seriously affecting its service life. And with long-term use, the materials will also flow out of the paddle level sensor to the outside environment, thus polluting the environment, thus greatly reducing the practical effect of the existing paddle level sensor, so the existing technology has limitations. Utility Model Content

[0004] The utility model is developed to solve the above problems and aims to provide a rotary resistance material level sensor.

[0005] The utility model provides a rotary resistance material level sensor, which has the following features: a housing assembly, including an upper housing and a lower housing detachably connected to the upper housing, the upper housing having a mounting portion and a connecting portion, a placement space being arranged inside the mounting portion, a mounting hole being arranged through the connecting portion along the axial direction, the mounting hole being communicated with the placement space, a step hole being arranged through the lower housing along the axial direction, the diameter of the large diameter section of the step hole being equal to the diameter of the connecting portion, and a partition plate being arranged inside the small diameter section of the step hole;

[0006] A transmission assembly, comprising a first transmission shaft, a first magnetic member, a second transmission shaft, and a second magnetic member, wherein the first transmission shaft is arranged in the mounting hole, one end of the first transmission shaft is connected to the output end of the following driving member, the other end of the first transmission shaft extends into the small diameter section of the step hole and is located above the partition plate, the first magnetic member is arranged on the other end of the first transmission shaft and is arranged close to the partition plate, the second transmission shaft is arranged in the small diameter section of the step hole and is located below the partition plate, the other end of the second transmission shaft extends out of the step hole, and the second magnetic member is arranged on one end of the second transmission shaft and is arranged close to the partition plate;

[0007] A detection blade is arranged on the other end of the second transmission shaft;

[0008] The driving assembly includes a driving member and a control switch member both arranged in the placement space, the driving member is used to drive the first transmission shaft to rotate, and the control switch member is used to control the driving member to run or stop.

[0009] The rotary resistance material level sensor provided by the utility model can also have the following feature: a wire inlet for electrically connecting the drive component to an external power source and a signal source is provided on the mounting portion.

[0010] The rotary resistance material level sensor provided by the utility model can also have the following feature: a purge hole is opened on the lower shell body and at a position corresponding to the second magnetic member, and the purge hole is connected to the small diameter section of the step hole.

[0011] The rotary resistance material level sensor provided by the utility model can also have the following feature: a dustproof oil seal is provided on the orifice of the small diameter section of the step hole.

[0012] The rotary resistance material level sensor provided by the utility model can also have the following feature: a first lubricating member for lubricating the first transmission shaft is provided inside the upper shell and on both sides of the mounting hole.

[0013] The rotary resistance material level sensor provided by the utility model can also have the following feature: a second lubricating member for lubricating the second transmission shaft is provided in the small diameter section of the step hole and below the partition plate.

[0014] The rotary resistance material level sensor provided by the utility model can also have the following characteristics: the outer wall of the connecting part and the inner wall of the large diameter section of the stepped hole are respectively provided with meshing external threads and internal threads, and a seal is provided between the external threads and the internal threads.

[0015] Functions and effects of utility models

[0016] According to the rotary paddle material level sensor involved in the utility model, since a partition plate is installed in the small diameter section of the step hole, and the first transmission shaft drives the second transmission shaft to rotate through the first magnetic part and the second magnetic part, it is possible to prevent materials from flowing out of the shell assembly into the external environment, thereby avoiding the phenomenon of environmental pollution, thereby greatly improving the practical effect of the rotary paddle material level sensor of the utility model.

[0017] Because the lower shell is provided with a purge hole, the opening of the small-diameter section of the step hole is provided with a dustproof oil seal, and the partition plate functions, it is possible to prevent materials from entering the shell assembly as much as possible, thereby extending the service life of the rotary paddle material level sensor of the utility model, thereby further improving the practical effect of the rotary paddle material level sensor of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a rotary paddle material level sensor in an embodiment of the utility model;

[0019] Figure 2 It is a partial cross-sectional view of a rotary paddle material level sensor in an embodiment of the utility model;

[0020] Figure 3 yes Figure 2 Enlarged view of point A in .

[0021] Description of reference numerals:

[0022] 10. Shell assembly; 11. Upper shell; 111. Mounting portion; 112. Connecting portion; 113. Mounting hole; 12. Lower shell; 121. Step hole; 13. Wire inlet; 14. Partition plate; 15. Purge hole; 20. Transmission assembly; 21. First transmission shaft; 22. First magnetic component; 23. Second transmission shaft; 24. Second magnetic component; 30. Detection blade; 40. Dustproof oil seal; 50. First lubricating component; 60. Second lubricating component; 70. Sealing component. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is specifically described in the following embodiments in conjunction with the accompanying drawings.

[0024] Example

[0025] Figure 1 It is a structural schematic diagram of the utility model. Figure 2 It is a partial cross-sectional view of the utility model. Figure 3 yes Figure 2 Enlarged view of point A in .

[0026] like Figure 1 and Figure 3 As shown, this embodiment provides a paddle level sensor, including: a housing assembly 10, a transmission assembly 20, a detection blade 30, a dustproof oil seal 40, a first lubricating member 50, a second lubricating member 60 and a sealing member 70. Among them, this embodiment provides a paddle level sensor also including a drive assembly.

[0027] like Figure 1 and Figure 2 As shown, the housing assembly 10 includes an upper housing 11 and a lower housing 12 detachably connected to the upper housing 11. The upper housing 11 has a mounting portion 111 and a connecting portion 112. A placement space is provided inside the mounting portion 111. A mounting hole 113 is provided through the connecting portion 112 along the axial direction, and the mounting hole 113 is connected to the placement space. A step hole 121 is provided through the lower housing 12 along the axial direction. The diameter of the large diameter section of the step hole 121 is equal to the diameter of the connecting portion 112. A partition plate 14 is installed in the small diameter section of the step hole 121.

[0028] In this embodiment, the mounting portion 111 has a detachable shell cover, so as to facilitate the installation of the driving assembly.

[0029] In this embodiment, the mounting portion 111 is provided with a line inlet 13 for the driving component to be electrically connected to an external power source and a signal source.

[0030] In this embodiment, a purge hole 15 is opened on the lower shell 12 at a position corresponding to the second magnetic member 24 , and the purge hole 15 is communicated with the small-diameter section of the step hole 121 .

[0031] like Figure 2 and Figure 3 As shown, the transmission assembly 20 includes a first transmission shaft 21, a first magnetic member 22, a second transmission shaft 23, and a second magnetic member 24. The first transmission shaft 21 is arranged in the mounting hole 113, one end of the first transmission shaft 21 is connected to the output end of the following driving member, and the other end extends into the small diameter section of the step hole 121 and is located above the partition plate 14. The first magnetic member 22 is arranged on the other end of the first transmission shaft 21 and is arranged close to the partition plate 14. The second transmission shaft 23 is arranged in the small diameter section of the step hole 121 and is located below the partition plate 14, and the other end of the second transmission shaft 23 extends out of the step hole 121. The second magnetic member 24 is arranged on one end of the second transmission shaft 23 and is arranged close to the partition plate 14.

[0032] In this embodiment, the first magnetic member 22 and the second magnetic member 24 are preferably magnets.

[0033] In this embodiment, the diameters of the first magnetic member 22 and the second magnetic member 24 are close to the diameter of the small diameter section of the step hole 121 .

[0034] like Figure 2 As shown, in this embodiment, the first transmission shaft 21 and the first magnetic member 22, as well as the second transmission shaft 23 and the second magnetic member 24 are connected through a convex block. Specifically, a slot is provided at the top and bottom of the convex block, the size of the slot on the top is the same as the size of the transmission shaft, and the convex block and the transmission shaft are connected through a key and a key slot. The size of the slot on the bottom is the same as the size of the magnetic member, so that the magnetic member can be installed on the convex block, and thus can be set on the corresponding transmission shaft.

[0035] like Figure 1 and Figure 2 As shown, the detection blade 30 is disposed on the other end of the second transmission shaft 23 .

[0036] like Figure 2 As shown, a dustproof oil seal 40 is provided on the opening of the small diameter section of the step hole 121.

[0037] like Figure 2As shown, a first lubricating member 50 for lubricating the first transmission shaft 21 is provided inside the upper housing 11 and on both sides of the mounting hole 113 . A second lubricating member 60 for lubricating the second transmission shaft 23 is provided in the small diameter section of the step hole 121 and below the partition plate 14 .

[0038] In this embodiment, the diameters of the second lubricating member 60 and the second transmission shaft 23 are equal to the diameter of the small diameter section of the step hole 121 .

[0039] like Figure 2 As shown, the outer wall of the connecting portion 112 and the inner wall of the large diameter section of the stepped hole 121 are respectively provided with meshing external threads and internal threads, and a sealing member 70 is provided between the external threads and the internal threads.

[0040] Functions and Effects of the Embodiments

[0041] According to the rotary paddle material level sensor involved in the utility model, since a partition plate is installed in the small diameter section of the step hole, and the first transmission shaft drives the second transmission shaft to rotate through the first magnetic part and the second magnetic part, it is possible to prevent materials from flowing out of the shell assembly into the external environment, thereby avoiding the phenomenon of environmental pollution, thereby greatly improving the practical effect of the rotary paddle material level sensor of the utility model.

[0042] Because the lower shell is provided with a purge hole, the opening of the small-diameter section of the step hole is provided with a dustproof oil seal, and the partition plate functions, it is possible to prevent materials from entering the shell assembly as much as possible, thereby extending the service life of the rotary paddle material level sensor of the utility model, thereby further improving the practical effect of the rotary paddle material level sensor of the utility model.

[0043] The above implementation modes are preferred examples of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A paddle-rotor material level sensor, characterized in that: include: The housing assembly comprises an upper housing and a lower housing detachably connected to the upper housing, wherein the upper housing has a mounting portion and a connecting portion, wherein a placement space is provided inside the mounting portion, and a mounting hole is provided through the connecting portion along the axial direction, wherein the mounting hole is communicated with the placement space, A stepped hole is provided in the lower shell along the axial direction, the diameter of the large diameter section of the stepped hole is equal to the diameter of the connecting portion, and a partition plate is installed in the small diameter section of the stepped hole; The transmission assembly comprises a first transmission shaft, a first magnetic member, a second transmission shaft, and a second magnetic member, wherein the first transmission shaft is arranged in the mounting hole, one end of the first transmission shaft is connected to the output end of the following driving member, and the other end of the first transmission shaft extends into the small diameter section of the step hole and is located above the partition plate. The first magnetic member is disposed on the other end of the first transmission shaft and is disposed close to the partition plate. The second transmission shaft is arranged in the small diameter section of the step hole and is located below the partition plate, and the other end of the second transmission shaft extends out of the step hole. The second magnetic member is disposed on one end of the second transmission shaft and is disposed close to the partition plate; A detection blade is provided on the other end of the second transmission shaft; The driving assembly includes a driving member and a control switch member both arranged in the placement space, the driving member is used to drive the first transmission shaft to rotate, and the control switch member is used to control the driving member to run or stop.

2. The paddle-rotor material level sensor according to claim 1, characterized in that: in, The mounting portion is provided with a wire inlet for the drive component to be electrically connected to an external power source and a signal source.

3. The paddle-rotor material level sensor according to claim 1, characterized in that: in, A purge hole is provided on the lower shell body at a position corresponding to the second magnetic member, and the purge hole is communicated with the small diameter section of the step hole.

4. The paddle-rotation material level sensor according to claim 1, characterized in that: in, A dustproof oil seal is provided on the hole opening of the small diameter section of the step hole.

5. The paddle-rotor material level sensor according to claim 1, characterized in that: in, A first lubricating member for lubricating the first transmission shaft is provided inside the upper shell and on both sides of the mounting hole.

6. The paddle-rotor material level sensor according to claim 1, characterized in that: in, A second lubricating member for lubricating the second transmission shaft is provided in the small diameter section of the step hole and below the partition plate.

7. The paddle-rotor material level sensor according to claim 1, characterized in that: in, The outer wall of the connecting portion and the inner wall of the stepped hole large diameter section are respectively provided with meshing external threads and internal threads. A sealing member is provided between the external thread and the internal thread.

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