Waterproof absolute opening online monitoring device for miter gate of ship lock

Abstract

The invention discloses a ship lock miter gate waterproof absolute opening online monitoring device, and relates to the technical field of gate absolute opening monitoring. The ship lock miter gate waterproof type absolute opening online monitoring device comprises a movable ruler, a static magnetic pointer and a miter gate, the movable ruler comprises an arc-shaped groove, a magnetic guiding plate and a PCB array, the PCB array is arranged in the arc-shaped groove, the magnetic guiding plate is arranged on the lower surface of the arc-shaped groove, the PCB array comprises a PCB, the outer surface of the PCB is provided with a Hall device array and a controller, and the Hall device array is connected with the static magnetic pointer. The static magnetic pointer comprises a support, corner connectors and a permanent magnet, the corner connectors are symmetrically arranged on the two sides of the permanent magnet, a non-contact means is adopted, the sensor is installed on the gate, and absolute opening information of the gate is obtained through a direct monitoring method.

Description

Technical Field

[0001] The present invention relates to the technical field of gate absolute opening monitoring, and specifically to a waterproof absolute opening on-line monitoring device for miter gates of a ship lock. Background Art

[0002] The miter gates of a ship lock are important navigation facilities. The miter gates are opened and closed by a horizontal hoist through a gate push-pull seat. The opening monitoring of the miter gates is related to the safe operation of the gates every time. At present, the opening of the miter gates is calculated by reading the stroke of the hoist, which is an indirect monitoring method. When the gate push-pull seat is loose or detached from the hoist hanging head, the opening information of the gate cannot be obtained. At the same time, due to the influence of water flow, the gate has a certain deformation, and the piston rod of the hoist also deflects downward when fully opened. Therefore, there are certain operation safety risks in monitoring the gate opening only from the stroke of the hoist. Summary of the Invention

[0003] In view of the deficiencies of the prior art, the present invention provides a waterproof absolute opening on-line monitoring device for miter gates of a ship lock to solve the problems presented in the above background art.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A waterproof absolute opening on-line monitoring device for miter gates of a ship lock, including a moving scale, a static magnetic pointer, and a miter gate. The moving scale includes an arc-shaped groove, a magnetic attracting plate, and a PCB array. The PCB array is arranged inside the arc-shaped groove, the magnetic attracting plate is arranged on the lower surface of the arc-shaped groove, the PCB array includes a PCB board, and a Hall device array and a controller are arranged on the outer surface of the PCB board. The static magnetic pointer includes a support, an angle code, and a permanent magnet, and the angle codes are symmetrically arranged on both sides of the permanent magnet.

[0005] Preferably, the Hall device array is arranged in the inner cavity at the top of the arc-shaped groove, and an outer shell wire outlet hole is arranged on the outer surface of the arc-shaped groove.

[0006] Preferably, the Hall device array adopts a three-ring circumferential array, the interval between the Hall devices in each ring circumferential array is 0.3°, and the adjacent circumferential arrays differ by 0.1°.

[0007] Preferably, a first mounting hole is arranged at the top of the support, a second mounting hole is arranged on the outer surface of the angle code, and the angle code is bolted to the support through the first mounting hole and the second mounting hole.

[0008] Preferably, a first top pivot tie rod and a second top pivot tie rod are arranged at the side of the outer surface of the miter gate.

[0009] Preferably, the bottom of the moving scale is mounted on the upper surface of the miter gate, and the bottom of the static magnetic pointer is mounted on the upper surface of the first top pivot tie rod or the second top pivot tie rod.

[0010] Beneficial Effects

[0011] The present invention provides a waterproof absolute opening online monitoring device for a ship lock miter gate. It has the following beneficial effects:

[0012] (1) The waterproof absolute opening online monitoring device for the miter gate of the ship lock realizes direct monitoring of the gate opening by directly installing a moving ruler and a static magnetic pointer on the miter gate. Compared with the traditional method of indirectly calculating the gate opening by reading the stroke of the gate hoist, the device greatly improves the monitoring accuracy. The Hall device array on the moving ruler can accurately sense the magnetic field changes of the permanent magnet on the static magnetic pointer, thereby accurately reflecting the gate opening information. This direct monitoring method avoids the risk of not being able to obtain the gate opening information when the gate push-pull seat and the gate hoist hanging head are loose or detached, thereby ensuring the safety and reliability of the gate operation. In addition, the high-precision sensing capability of the Hall device array also enables the device to maintain accurate monitoring results when the gate opening changes slightly.

[0013] (2) The waterproof absolute opening online monitoring device for the miter gate of the ship lock can enhance the waterproof performance of the device by filling the inside of the arc groove with glue, so that it can work stably for a long time underwater. In addition, a hydrophobic coating is provided on the outer surface of the arc groove of the movable ruler to effectively prevent the formation of water film, ensuring that the magnetic field can penetrate smoothly without being affected by the external environment. In addition, the hydrophobic coating can also effectively prevent the adhesion of dirt, reduce the monitoring error caused by the accumulation of dirt, and improve the durability and stability of the device. This design enables the device to adapt to various harsh working environments and ensure the accuracy and reliability of the monitoring results.

[0014] (3) The waterproof absolute opening online monitoring device for the miter gate of the ship lock can gather the magnetic field of the permanent magnet through the magnetic attraction plate. The magnetic flux lines start from the permanent magnet, pass through the Hall device and then to the magnetic attraction plate. This can not only strengthen the magnetic field and increase the sensing distance, but also prevent the magnetic field from spreading, thereby increasing the monitoring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the split structure of the movable ruler of the present invention;

[0017] Figure 3 It is a structural schematic diagram of a PCB board of the present invention;

[0018] Figure 4 It is a structural schematic diagram of a static magnetic pointer of the present invention;

[0019] Figure 5 This is the structural schematic diagram of the bearing of the present invention;

[0020] Figure 6 This is the structural schematic diagram of the angle code of the present invention;

[0021] Figure 7 This is the structural schematic diagram of the permanent magnet of the present invention;

[0022] Figure 8 This is the structural schematic diagram of the movable scale and the static magnetic pointer of the present invention installed on the miter gate.

[0023] In the figure: 1. Movable scale; 101. Arc groove; 102. Magnetic induction plate; 103. PCB array; 1031. PCB board; 1032. Hall device array; 1033. Controller; 104. Outer shell wire outlet hole; 2. Static magnetic pointer; 201. Bearing; 202. Angle code; 203. Permanent magnet; 204. First mounting hole; 205. Second mounting hole; 3. Miter gate; 4. First top pivot pull rod; 5. Second top pivot pull rod. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Embodiment 1:

[0026] As Figure 1-8 shown, the present invention provides a waterproof absolute opening online monitoring device for the miter gate of a ship lock, including a movable scale 1, a static magnetic pointer 2 and a miter gate 3. The movable scale 1 includes an arc groove 101, a magnetic induction plate 102 and a PCB array 103. The PCB array 103 is arranged inside the arc groove 101, the magnetic induction plate 102 is arranged on the lower surface of the arc groove 101, the PCB array 103 includes a PCB board 1031, and a Hall device array 1032 and a controller 1033 are arranged on the outer surface of the PCB board 1031. The static magnetic pointer 2 includes a bearing 201, an angle code 202 and a permanent magnet 203, and the angle codes 202 are symmetrically arranged on both sides of the permanent magnet 203.

[0027] Specifically, the Hall device array 1032 is arranged in the top inner cavity of the arc groove 101, and an outer shell wire outlet hole 104 is arranged on the outer surface of the arc groove 101.

[0028] Specifically, the Hall device array 1032 adopts a three-ring circumferential array, the interval between the Hall devices in each ring circumferential array is 0.3°, and the adjacent circumferential arrays differ by 0.1°.

[0029] Specifically, a first mounting hole 204 is provided at the top of the support 201, and a second mounting hole 205 is provided on the outer surface of the angle code 202. The angle code 202 is bolted to the support 201 through the first mounting hole 204 and the second mounting hole 205.

[0030] Specifically, a first top pivot tie rod 4 and a second top pivot tie rod 5 are provided at the side of the outer surface of the miter gate 3.

[0031] Specifically, the bottom of the moving scale 1 is mounted on the upper surface of the miter gate 3, and the bottom of the static magnetic pointer 2 is mounted on the upper surface of the first top pivot tie rod 4 or the second top pivot tie rod 5.

[0032] The working principle and beneficial effects of the above embodiments.

[0033] During use, when manufacturing the moving scale 1, determine the radius of curvature of the moving scale 1 according to the dimensions of the miter gate 3, manufacture the PCB board 1031 of the same specification according to the fixed radius of curvature, manufacture the arc-shaped groove 101 according to the fixed radius of curvature, and apply a hydrophobic coating on the arc-shaped groove 101. Install a certain number of PCB boards 1031 on the top of the inner cavity of the arc-shaped groove 101 to form the PCB array 103. After electrical connection, lead out the lead wire through the housing outlet hole 104, fill the inner cavity of the arc-shaped groove 101 with glue for waterproofing, and bond the magnetic induction plate 102 to the bottom of the arc-shaped groove 101 to complete the manufacture of the moving scale 1. When manufacturing the static magnetic pointer 2, install two angle codes 202 on the support 201 through bolts, and then bond the permanent magnet 203 in the gap between the two angle codes 202 to complete the manufacture of the static magnetic pointer 2. This on-line monitoring device is composed of the moving scale 1 and the static magnetic pointer 2. When using this device, install the moving scale 1 on the miter gate 3, adjust the center of curvature of the moving scale 1 to overlap with the rotation center of the miter gate 3, and bond the moving scale 1 to the miter gate 3 through the bottom of the moving scale 1, that is, one side of the magnetic induction plate 102. Then bond or magnetically attract the static magnetic pointer 2 to the first top pivot pull rod 4 or the second top pivot pull rod 5, and adjust the height through the gasket so that the distance between the permanent magnet 203 of the static magnetic pointer 2 and the induction surface of the moving scale 1 is within 5 mm, and ensure that the static magnetic pointer 2 and the moving scale 1 do not separate from the magnetic field induction during the full-open and full-closed rotation of the miter gate 3. The Hall device array 1032 adopts a three-ring circumferential array, which is divided into an outer ring, a middle ring and an inner ring. The interval between the Hall devices in each ring of the circumferential array is 0.3°, the deviation of the Hall devices in the middle ring from the outer ring is 0.1°, and the deviation of the Hall devices in the inner ring from the middle ring is 0.1°. Thus, the three-ring circumferential array will sense the magnetic field change of the static magnetic pointer 2 within any range of 0.1°. Since the permanent magnet 203 on the static magnetic pointer 2 has a certain width, the magnetic field will cause multiple adjacent sensors in the three-ring circumferential array to sense the magnetic field. When multiple Hall devices on the three-ring circumferential array sense the magnetic field, the angular position information between the static magnetic pointer 2 and the moving scale 1 can be judged according to the position of the Hall device on the array. When the number of Hall devices sensing the magnetic field is odd, take the position information of the middle Hall device; when it is even, take the middle value of the position information of the two middle Hall devices. Therefore, the minimum resolution of this device can reach 0.05°, by filling glue in the arc-shaped groove 101 and coating a hydrophobic coating on the outer surface of the arc-shaped groove 101, the device can work underwater and is not affected by dirt, water flow, etc. The hydrophobic coating can prevent the water film from affecting the magnetic field penetration, further improving the durability of the device. By setting the magnetic attracting plate 102, the magnetic field of the permanent magnet 203 can be concentrated. The magnetic induction lines start from the permanent magnet 203, pass through the Hall device and then reach the magnetic attracting plate 102. In this way, not only can the magnetic field be strengthened, the induction distance be increased, but also the magnetic field can be prevented from spreading, increasing the monitoring accuracy. By arranging the Hall device array 1032 on the PCB array 103 in the top inner cavity of the arc-shaped groove 101 and making the arc-shaped groove 101 in an inverted state during operation, the Hall device array 1032 can be made as close as possible to the permanent magnet 203.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation. An element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Waterproof absolute opening online monitoring device for miter gate of ship lock, comprising a moving scale (1), a static magnetic pointer (2) and a miter gate (3), characterized in that: The moving scale (1) includes an arc-shaped groove (101), a magnetic attracting plate (102), and a PCB array (103). The PCB array (103) is arranged inside the arc-shaped groove (101). The magnetic attracting plate (102) is arranged on the lower surface of the arc-shaped groove (101). The PCB array (103) includes a PCB board (1031). A Hall device array (1032) and a controller (1033) are arranged on the outer surface of the PCB board (1031). The static magnetic pointer (2) includes a support (201), corner codes (202), and a permanent magnet (203). The corner codes (202) are symmetrically arranged on both sides of the permanent magnet (203).

2. The waterproof absolute opening online monitoring device for miter gates of a ship lock according to claim 1, characterized in that: The Hall device array (1032) is arranged in the top inner cavity of the arc-shaped groove (101). An outer shell wire outlet hole (104) is arranged on the outer surface of the arc-shaped groove (101).

3. The waterproof absolute opening online monitoring device for miter gates of a ship lock according to claim 1, characterized in that: The Hall device array (1032) adopts a three-ring circumferential array. The interval between the Hall devices in each ring circumferential array is 0.3°, and the adjacent circumferential arrays differ by 0.1°.

4. The waterproof absolute opening online monitoring device for miter gates of a ship lock according to claim 1, characterized in that: A first mounting hole (204) is arranged at the top of the support (201). A second mounting hole (205) is arranged on the outer surface of the corner code (202). The corner code (202) is bolted to the support (201) through the first mounting hole (204) and the second mounting hole (205).

5. The waterproof absolute opening online monitoring device for miter gates of a ship lock according to claim 1, characterized in that: A first top pivot pull rod (4) and a second top pivot pull rod (5) are arranged at the side of the outer surface of the miter gate (3).

6. The waterproof absolute opening online monitoring device for miter gates of a ship lock according to claim 4, characterized in that: The bottom of the moving scale (1) is mounted on the upper surface of the miter gate (3). The bottom of the static magnetic pointer (2) is mounted on the upper surface of the first top pivot pull rod (4) or the second top pivot pull rod (5).

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