Movable coal level sensor

Abstract

The utility model discloses a movable coal level sensor which comprises a coal level sensor body, a movable installation ring is fixedly installed on the top of the coal level sensor body, a front cover is fixed to the front face of the coal level sensor body in a threaded connection mode, and meanwhile a detection rod is movably installed at the bottom of the coal level sensor body. A movable rod is inserted into the detection rod, a stress seat is fixedly mounted at the bottom of the movable rod, a positioning seat is fixedly mounted on the outer side surface of the detection rod, and a stud is inserted into the positioning seat. According to the movable coal level sensor, the stud moves in the positioning seat, when the detection height of the stress seat is adjusted, adjustment can be performed according to different coal pile heights, the accuracy of a measurement result is improved, and the mounting height of the stress seat can be improved for a higher coal pile; and for a lower coal pile, the mounting height of the stress seat can be reduced, and the measurement precision and the applicability of the equipment in use can be improved.

Description

Technical Field

[0001] The utility model relates to the field of coal pile sensors, in particular to a movable coal level sensor. Background Art

[0002] The working principle of the coal pile sensor is as follows: the coal pile sensor appears to have two poles, namely the shell and the probe; under normal conditions, the shell and the probe are in an open circuit state; when the coal touches the probe of the coal pile sensor, since the coal can serve as a conductive medium, the shell and the probe form a loop through the coal conductor; once the above loop is formed, the normally open switch contact will close; when the control system that comes with it detects that the contact is closed, it will determine that a coal pile situation has occurred, thereby triggering corresponding protection actions, such as issuing an alarm signal, controlling the belt conveyor to stop running, etc., to prevent the further expansion of the coal pile accident and protect the safety of equipment and personnel; the coal pile sensor detects the contact of coal with its probe, uses the conductivity of coal to make the internal circuit of the sensor conductive, and then generates a change in the switch signal to achieve monitoring and protection of the coal pile situation;

[0003] Taking the GUJ30 coal pile sensor (coal level sensor) as an example, when the coal level sensor is actually used, the detection force-bearing end at its bottom cannot move vertically in its height direction. In actual applications, the height of the coal pile may change continuously due to factors such as production demand and loading and unloading processes. When the height of the sensor force-bearing end is fixed, it cannot be adjusted according to different coal pile heights, which may lead to inaccurate measurement results. Utility Model Content

[0004] The purpose of the present utility model is to provide a movable coal level sensor to solve the defect mentioned in the above background technology that when the height of the force-bearing end of the sensor is fixed, it cannot be adjusted according to different coal pile heights, which may lead to inaccurate measurement results.

[0005] In order to achieve the above-mentioned purpose, a movable coal level sensor is provided, including a coal level sensor body, a movable mounting ring is fixedly installed on the top of the coal level sensor body, and a front cover is screwed and fixed on the front of the coal level sensor body, and a detection rod is movably installed on the bottom of the coal level sensor body, and a moving rod is inserted into the inside of the detection rod, a force seat is fixedly installed on the bottom of the moving rod, a positioning seat is fixedly installed on the outer surface of the detection rod, and a stud is inserted into the inside of the positioning seat, and the end of the stud is fixedly arranged on the circumferential outside of the top of the moving rod.

[0006] Preferably, the surface of the positioning seat is arranged horizontally, and the stud is inserted into the interior of the positioning seat and is screwed and fixed by a nut.

[0007] Preferably, the detection rod is adapted to the size of the moving rod, and the moving rod is inserted into the interior of the detection rod, while a mounting column is welded and fixed to the bottom of the moving rod.

[0008] Preferably, the force-bearing seat includes a mounting column, and the circumferential outer wall of the mounting column evenly fixes six groups of force-bearing plates, and the force-bearing plates are arranged in a rectangular shape.

[0009] Preferably, the distances between two adjacent groups of stress-bearing plates are consistent, and the six groups of stress-bearing plates are centrally symmetrical structures about the mounting column.

[0010] Preferably, the six groups of stress-bearing plates are fixedly connected by two groups of reinforcement bars, and the two groups of reinforcement bars are arranged in parallel, and both groups of reinforcement bars are arranged in a circular ring shape.

[0011] Preferably, the coal level detection height of the force-bearing seat is adjusted by means of a stud, a nut and a positioning seat, and the positioning seat is arranged in a "U" shape, while the nut is screwed and fixed on the outside of the stud.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention uses a stud to move inside the positioning seat. Once the detection height of the force-bearing seat is adjusted, it can be adjusted according to the height of different coal piles to improve the accuracy of the measurement results. For higher coal piles, the installation height of the force-bearing seat can be increased; for lower coal piles, the installation height of the force-bearing seat can be lowered, thereby improving measurement accuracy and the applicability of the equipment during use.

[0014] 2. When the utility model is in use, the force-bearing seat needs to frequently come into contact with the coal pile. The circumferential outer wall of the mounting column on the force-bearing seat is evenly fixed with six groups of force-bearing plates. The setting of the six groups of force-bearing plates can increase the contact area between the top of the coal pile and the force-bearing seat when the coal pile is raised, so that the coal level sensor body can quickly sense and transmit signals in the first time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a bottom view of the structure of the utility model;

[0017] Figure 3 It is a top view of the structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the force bearing seat of the utility model.

[0019] Numbers in the figure: 1. Coal level sensor body; 11. Movable mounting ring; 2. Front cover; 3. Detection rod; 4. Stud; 5. Nut; 6. Positioning seat; 7. Moving rod; 8. Force seat; 81. Mounting column; 82. Force plate; 83. Reinforcement strip. DETAILED DESCRIPTION

[0020] See also Figure 1-4 The utility model provides a movable coal level sensor, including a coal level sensor body 1, a movable mounting ring 11 is fixedly installed on the top of the coal level sensor body 1, and a front cover 2 is screwed and fixed on the front of the coal level sensor body 1, and a detection rod 3 is movably installed on the bottom of the coal level sensor body 1, and a moving rod 7 is inserted into the interior of the detection rod 3, a force-bearing seat 8 is fixedly installed on the bottom of the moving rod 7, a positioning seat 6 is fixedly installed on the outer surface of the detection rod 3, and a stud 4 is inserted into the interior of the positioning seat 6, and the end of the stud 4 is fixedly arranged on the circumferential outer side of the top of the moving rod 7.

[0021] As can be seen from the above, when it is necessary to adjust the force height of the force seat 8 at the bottom of the coal level sensor body 1, the force seat 8 is held by hand, and the moving rod 7 on the force seat 8 is inserted into the inside of the detection rod 3. By changing the insertion depth of the moving rod 7 inside the detection rod 3, the purpose of adjusting the force height of the force seat 8 is achieved. The specific method is: when the moving rod 7 is inserted into the inside of the detection rod 3, the stud 4 moves inside the positioning seat 6. When the detection height of the force seat 8 is adjusted, the nut 5 is tightened and fixed on the stud 4 to ensure the stability of the force seat 8 during work. In actual application, the height of the coal pile It will constantly change due to factors such as production demand and loading and unloading process; it can be adjusted according to different coal pile heights to improve the accuracy of measurement results. For higher coal piles, the installation height of the force-bearing seat 8 can be increased; and for lower coal piles, the installation height of the force-bearing seat 8 can be reduced to improve measurement accuracy and the applicability of the equipment when in use; when in use, the force-bearing seat 8 needs to frequently come into contact with the coal pile. The circumferential outer wall of the mounting column 81 on the force-bearing seat 8 is evenly fixed with six groups of force-bearing plates 82. The arrangement of the six groups of force-bearing plates 82 can increase the contact area between the top of the coal pile and the force-bearing seat 8 when the coal pile is raised, so that the coal level sensor body 1 can quickly sense and transmit signals in the first time;

[0022] As a preferred embodiment, the surface of the positioning seat 6 is arranged horizontally, and the stud 4 is inserted into the interior of the positioning seat 6 and is screwed and fixed by the nut 5.

[0023] As a preferred embodiment, the size of the detection rod 3 is adapted to that of the moving rod 7 , and the moving rod 7 is inserted into the interior of the detection rod 3 , while a mounting column 81 is welded and fixed to the bottom of the moving rod 7 .

[0024] As a preferred embodiment, the force-bearing seat 8 includes a mounting column 81 , and six groups of force-bearing plates 82 are evenly fixed on the circumferential outer wall of the mounting column 81 , and the force-bearing plates 82 are rectangular in shape.

[0025] As a preferred embodiment, the distance between two adjacent groups of stress-bearing plates 82 is consistent, and the six groups of stress-bearing plates 82 are centrally symmetrical structures about the mounting column 81 .

[0026] As a preferred embodiment, the six groups of stress-bearing plates 82 are fixedly connected by two groups of reinforcement bars 83 , and the two groups of reinforcement bars 83 are arranged in parallel, and both groups of reinforcement bars 83 are arranged in a circular ring shape.

[0027] As can be seen from the above, when in use, the force-bearing seat 8 is a detachable structure as a whole. When the force-bearing seat 8 is worn, damaged or has performance degradation, the part can be removed and replaced separately without replacing the entire sensor; this can greatly extend the service life of the sensor and reduce the overall maintenance cost of the equipment; the force-bearing seat 8 adopts a detachable and replaceable design, making the maintenance process simpler and faster; when a problem occurs with the force-bearing seat 8, maintenance personnel can quickly remove it and replace it with a new force-bearing end without the need for complicated maintenance operations on the entire sensor; this can greatly reduce maintenance time and cost and improve the availability and reliability of the equipment.

[0028] As a preferred embodiment, the coal level detection height of the force-bearing seat 8 is adjusted by the stud 4, the nut 5 and the positioning seat 6, and the positioning seat 6 is set in a "U" shape, and the nut 5 is screwed and fixed on the outside of the stud 4.

[0029] Working principle: During use, when it is necessary to adjust the force height of the force seat 8 at the bottom of the coal level sensor body 1, the force seat 8 is held in hand and the moving rod 7 on the force seat 8 is inserted into the inside of the detection rod 3. By changing the insertion depth of the moving rod 7 inside the detection rod 3, the purpose of adjusting the force height of the force seat 8 is achieved. The specific method is: when the moving rod 7 is inserted into the inside of the detection rod 3, the stud 4 moves inside the positioning seat 6. When the detection height of the force seat 8 is adjusted, the nut 5 is tightened and the nut 5 is fixed on the stud 4 to ensure the stability of the force seat 8 during work. In actual application, the height of the coal pile will change continuously due to production requirements, loading and unloading processes and other factors; it can be adjusted according to different coal pile heights to improve the accuracy of the measurement results. For higher coal piles, the installation height of the force seat 8 can be increased; and for lower coal piles, the installation height of the force seat 8 can be lowered to improve the measurement accuracy. Accuracy and applicability of the equipment when in use; when the force-bearing seat 8 is in use, it needs to frequently come into contact with the coal pile. The circumferential outer wall of the mounting column 81 on the force-bearing seat 8 evenly fixes six groups of force-bearing plates 82. The setting of the six groups of force-bearing plates 82 can increase the contact area between the top of the coal pile and the force-bearing seat 8 when the coal pile is rising, so that the coal level sensor body 1 can quickly sense and transmit signals in the first time. At the same time, the force-bearing seat 8 as a whole is a detachable structure. When the force-bearing seat 8 is worn, damaged or its performance degrades, the part can be removed and replaced separately without replacing the entire sensor; the service life of the sensor can be greatly extended and the overall maintenance cost of the equipment can be reduced; the force-bearing seat 8 adopts a detachable and replaceable design, which makes the maintenance process simpler and faster; when there is a problem with the force-bearing seat 8, the maintenance personnel can quickly remove it and replace it with a new force-bearing end without the need to perform complicated maintenance operations on the entire sensor; the maintenance time and cost can be greatly reduced, and the availability and reliability of the equipment can be improved.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A movable coal level sensor, comprising a coal level sensor body (1), characterized in that: A movable mounting ring (11) is fixedly mounted on the top of the coal level sensor body (1), and a front cover (2) is screwed and fixed on the front of the coal level sensor body (1). At the same time, a detection rod (3) is movably mounted on the bottom of the coal level sensor body (1), and a moving rod (7) is inserted into the interior of the detection rod (3). A force bearing seat (8) is fixedly mounted on the bottom of the moving rod (7). A positioning seat (6) is fixedly mounted on the outer surface of the detection rod (3), and a stud (4) is inserted into the interior of the positioning seat (6), and the end of the stud (4) is fixedly arranged on the outer side of the circumference of the top of the moving rod (7).

2. The movable coal level sensor according to claim 1, characterized in that: The surface of the positioning seat (6) is arranged horizontally, and the stud (4) is inserted into the interior of the positioning seat (6) and is screwed and fixed by a nut (5).

3. The movable coal level sensor according to claim 1, characterized in that: The detection rod (3) is adapted to the size of the moving rod (7), and the moving rod (7) is inserted into the interior of the detection rod (3), while a mounting column (81) is welded and fixed to the bottom of the moving rod (7).

4. The movable coal level sensor according to claim 1, characterized in that: The force bearing seat (8) comprises a mounting column (81), and the circumferential outer wall of the mounting column (81) is evenly fixed with six groups of force bearing pieces (82), and the force bearing pieces (82) are arranged in a rectangular shape.

5. The movable coal level sensor according to claim 4, characterized in that: The distances between two adjacent groups of stress-bearing plates (82) are consistent, and the six groups of stress-bearing plates (82) are centrally symmetrical structures about the mounting column (81).

6. The movable coal level sensor according to claim 5, characterized in that: The six groups of stress-bearing plates (82) are fixedly connected by two groups of reinforcement bars (83), and the two groups of reinforcement bars (83) are arranged in parallel. At the same time, the two groups of reinforcement bars (83) are both arranged in a circular ring shape.

7. The movable coal level sensor according to claim 1, characterized in that: The coal level detection height of the force bearing seat (8) is adjusted by means of a stud (4), a nut (5) and a positioning seat (6), and the positioning seat (6) is arranged in a "U" shape, while the nut (5) is screwed and fixed on the outside of the stud (4).

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