Material level measuring device

Abstract

The utility model discloses a material level measuring device which comprises a stand column arranged on the outer side of a stock bin, and a programmable logic controller (PLC) is arranged on the stand column. A reel is installed at the bottom of the stand column, a pull rope is wound on the reel, and a first pulley and a second pulley which are used for guiding the pull rope are horizontally arranged at the top end of the stand column side by side. The other end of the pull rope extends into the stock bin and is connected with the heavy hammer; a marker is mounted on the pull rope on the outer side of the stock bin; a displacement sensor for detecting the moving distance of the marker is arranged on the marker, and the output end of the displacement sensor is connected with the input end of the PLC; an in-place switch is arranged at the bottom of the heavy hammer, and the output end of the in-place switch is connected with the input end of the PLC; according to the utility model, the counter weight is connected with the pull rope, and the marker is arranged on the pull rope, so that the moving distance of the counter weight is effectively converted into the moving distance of the marker, the material level in the stock bin is quickly calculated, and the safety and the stability of operation are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring devices, and particularly relates to a material level measuring device. Background Art

[0002] Currently, during the measurement process, generally, people climb to the top of the silo manually and measure the material level in the silo with a measuring scale. However, this measurement method is time-consuming and laborious in the specific operation process. When measuring the position of materials in a relatively high silo, it cannot ensure the personal safety of the operators, with poor safety, and the measurement stability is affected by various factors, resulting in large errors. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a material level measuring device that can quickly and conveniently detect the material level in the silo and ensure the safety and stability during the measurement process.

[0004] To solve the above technical problem, the following technical solutions are adopted in the utility model.

[0005] A material level measuring device includes a column arranged outside the silo, and a PLC controller is arranged on the column; a wire reel is installed on the mounting frame at the bottom of the column, a pulling rope is wound around the wire reel, and a first pulley and a second pulley for guiding the pulling rope are arranged horizontally side by side at the top of the column; the other end of the pulling rope extends into the silo and is connected with a weight; a marker is installed on the pulling rope located outside the silo; a displacement sensor for detecting the moving distance of the marker is arranged on the marker, and the output end of the displacement sensor is connected with the input end of the PLC controller; a limit switch is arranged at the bottom of the weight, and the output end of the limit switch is connected with the input end of the PLC controller.

[0006] In the above material level measuring device, a clamping assembly for clamping the marker is slidably installed on the pulling rope.

[0007] In the above material level measuring device, the clamping assembly includes a base slidably installed on the pulling rope, lower clamping plates are symmetrically arranged on both sides of the base, and the lower clamping plates are connected with an upper clamping plate at the top through bolt assemblies; arc-shaped notches are respectively formed on the opposite sides of the upper clamping plate and the lower clamping plate, and a clamping hole position for clamping the marker is formed after the two notches are combined.

[0008] In the above material level measuring device, a handle for facilitating manual operation of the wire reel is arranged at one end of the wire reel.

[0009] In the above material level measuring device, scale lines are arranged on the pulling rope.

[0010] Due to the adoption of the above technical solutions, the following technical progress is achieved in the utility model.

[0011] The utility model provides a material level measuring device. By connecting a weight with a pull rope and arranging a marker on the pull rope, the moving distance of the weight is effectively converted into the moving distance of the marker, and the material level in the silo is quickly calculated, avoiding the need for manual climbing to high places for measurement, and effectively improving the safety and stability of operation. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the utility model;

[0013] Figure 2 It is a schematic sectional view of the utility model;

[0014] Figure 3 It is a schematic structural diagram of the clamping assembly of the utility model.

[0015] Wherein: 1. Silo, 2. Column, 3. Mounting frame, 4. Wire reel, 5. Pull rope, 6. Marker, 7. Clamping assembly, 71. Base, 72. Lower clamping plate, 73. Upper clamping plate, 74. Clamping hole position, 75. Bolt assembly, 8. First pulley, 9. Second pulley, 10. Handle, 11. Weight. Detailed Description of the Preferred Embodiment

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] A material level measuring device, as Figures 1 to 3 shown, includes a column 2 arranged outside the silo 1. A PLC controller is arranged on the column 2. A wire reel 4 is installed on a mounting frame 3 at the bottom of the column 2. A pull rope 5 is wound around the wire reel 4. The other end of the pull rope 5 extends into the interior of the silo 1 and is connected to a weight 11. A marker 6 is installed on the pull rope 5 located outside the silo 1.

[0018] A displacement sensor for detecting the moving distance of the marker 6 is arranged on the marker 6. The output end of the displacement sensor is connected to the input end of the PLC controller.

[0019] A position switch is arranged at the bottom of the weight 11. The output end of the position switch is connected to the input end of the PLC controller.

[0020] A clamping assembly 7 for clamping the marker 6 is slidably installed on the pull rope 5. As Figure 3 shown, the clamping assembly 7 includes a base 71 slidably installed on the pull rope 5. Lower clamping plates 72 are symmetrically arranged on both sides of the base 1. The lower clamping plates are connected to an upper clamping plate 73 at the top through bolt assemblies 75.

[0021] Arc-shaped notches are respectively formed on the opposite sides of the upper clamping plate 73 and the lower clamping plate 72, and the two notches are combined to form a clamping hole position 74 for clamping the marker.

[0022] At the top end of the column 2, a first pulley 8 and a second pulley 9 for guiding the pulling rope 5 are arranged horizontally in parallel.

[0023] One end of the winding shaft 4 is provided with a handle 10 which is convenient to hold, and the winding shaft 4 can be manually operated.

[0024] Scale lines are arranged on the pulling rope 5, which is convenient for reading the moving distance of the marker at a low position and calculating the material level.

[0025] During use, the position of the marker 6 when the plumb bob 11 is flush with the top end of the silo 1 is taken as the initial position. When it is necessary to detect the material level, the winding shaft 4 is controlled to rotate so that the pulling rope drives the plumb bob 11 to move downward. At this time, the marker will also move, and the displacement sensor on it will detect the displacement of the marker 6 and transmit the signal to the PLC controller.

[0026] When the plumb bob 11 contacts the material in the silo, the in-place switch sends a signal to the PLC controller to control the winding shaft to stop moving. At this time, the displacement of the marker 6 is the moving distance of the plumb bob 11 in the silo, and the material height in the silo can be calculated according to the overall height of the silo.

[0027] The utility model provides a material level measuring device. By connecting the plumb bob with the pulling rope and arranging a marker on the pulling rope, the moving distance of the plumb bob is effectively converted into the moving distance of the marker, and the material level in the silo is quickly calculated, effectively improving the safety and stability of the operation.

Claims

1. A material level measuring device, characterized in that: It includes a column (2) arranged outside the silo (1), and a PLC controller is arranged on the column (2); a wire reel (4) is installed on the bottom mounting frame (3) of the column (2), a pull rope (5) is wound on the wire reel (4), and a first pulley (8) and a second pulley (9) for guiding the pull rope (5) are horizontally arranged side by side at the top of the column (2); the other end of the pull rope (5) extends into the silo (1) and is connected to a weight (11); a marker (6) is installed on the pull rope (5) located outside the silo (1); a displacement sensor for detecting the moving distance of the marker (6) is arranged on the marker (6), and the output end of the displacement sensor is connected to the input end of the PLC controller; a limit switch is arranged at the bottom of the weight (11), and the output end of the limit switch is connected to the input end of the PLC controller.

2. The level measurement device according to claim 1, wherein: A clamping assembly (7) for clamping the marker (6) is slidably installed on the pull rope (5).

3. The level measuring device according to claim 2, wherein: The clamping assembly (7) includes a base (71) slidably installed on the pull rope (5), lower clamping plates (72) are symmetrically arranged on both sides of the base (71), and the lower clamping plates are connected to the upper clamping plate (73) at the top through bolt assemblies (75); arc-shaped notches are respectively formed on the opposite sides of the upper clamping plate (73) and the lower clamping plates (72), and a clamping hole position (74) for clamping the marker is formed after the two notches are combined.

4. A material level measuring device according to claim 1, characterized in that: A handle (10) for facilitating manual operation of the wire reel (4) is arranged at one end of the wire reel (4).

5. A material level measuring device according to claim 1, characterized in that: Scale lines are arranged on the pull rope (5).

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