Ship lock gate stroke control device based on azimuth angle sensor

Abstract

The utility model discloses a ship lock gate stroke control device based on an azimuth angle sensor, which comprises a gate, one end of the gate is provided with a gate top pivot rotating shaft, the top of the gate top pivot rotating shaft is provided with a top pivot rotating platform, the top pivot rotating platform is provided with the azimuth angle sensor and a PLC (Programmable Logic Controller), and the outer ring of the top pivot rotating platform is provided with a rotating limiting collision block. The gate top pivot rotating shaft is provided with a top pivot stabilizing mechanism, the top pivot stabilizing mechanism is provided with a limiting switch assembly, and the azimuth angle sensor is connected with the PLC. The device has the advantages that the problem that the ship lock cannot stably, safely and efficiently run due to the fact that an existing ship lock gate stroke control device is rusted, blocked, bent, inaccurate in positioning control and the like is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of river gates, in particular to a lock gate stroke control device based on an azimuth sensor. Background Technique

[0002] A lock refers to a "navigation structure" that helps ships overcome the water level drop of a river and sail safely and smoothly, and is widely used in the field of water transportation. A lock mainly includes a gate chamber structure of a lock head and two opposite gates. The two opposite gates are both rotatably connected to the gate chamber structure of the lock head, and both gates are driven by a hydraulic system. The existing lock gate stroke control generally adopts installing a guide rod and a guide rail outside the cylinder of the gate opening and closing machine. One end of the guide rod is fixed at the connecting head of the cylinder piston rod. The guide rod runs with the telescopic movement of the cylinder piston rod. A collision block is arranged on the guide rod. During the opening and closing process of the gate, the collision block on the guide rod collides with the limit switch on the guide rail, so that the gate reaches the designated position of opening and closing.

[0003] This type of stroke control structure has defects of "thin rod, long fulcrum, and deflection". With the increase in the number of gate opening and closing times and the operation time, metal fatigue occurs between the guide rod and the guide rail. When the guide rod is fully extended, it sags severely. At the same time, the guide rod is exposed outdoors with the opening and closing of the gate, and foreign matters are easy to accumulate. In addition, the rod freezes in rainy, snowy and extremely cold weather, and problems such as rust, jamming, and bending are likely to occur, resulting in the failure of the gate stroke control. For the lock to operate safely, efficiently and stably, it is extremely crucial to accurately control the stroke of the gate. Therefore, the lock gate stroke control device urgently needs to solve the problems that the lock cannot operate smoothly, safely and efficiently due to reasons such as rust, jamming, bending, and inaccurate positioning control. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lock gate stroke control device based on an azimuth sensor to solve the problems that the existing lock gate stroke control device causes the lock to be unable to operate smoothly, safely and efficiently due to reasons such as rust, jamming, bending, and inaccurate positioning control.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A lock gate stroke control device based on an azimuth sensor includes a gate. One end of the gate is provided with a gate top pivot rotating shaft. A top pivot rotating platform is arranged at the top of the gate top pivot rotating shaft. An azimuth sensor and a PLC are arranged on the top pivot rotating platform. A rotating limit collision block is arranged on the outer circle of the top pivot rotating platform. A top pivot stabilizing mechanism is arranged on the gate top pivot rotating shaft. A limit switch assembly is arranged on the top pivot stabilizing mechanism. The azimuth sensor is connected to the PLC.

[0007] Furthermore, the top pivot stabilizing mechanism includes a first base and a second base at a certain angle. The first base is provided with a first pull rod, and the end of the first pull rod is provided with a first bushing. The second base is provided with a second pull rod, and the end of the second pull rod is provided with a second bushing. The first bushing and the second bushing are rotatably connected to the top pivot rotating shaft of the gate.

[0008] Furthermore, the limit switch assembly includes a first limit switch and a second limit switch. The first limit switch is installed on the first bushing, and the second limit switch is installed on the second bushing.

[0009] Furthermore, the first limit switch includes a first bracket. A first micro limit switch and a second micro limit switch are slidably connected to the first bracket. The first micro limit switch and the second micro limit switch are arranged parallel to each other vertically and offset from each other front and back.

[0010] Furthermore, the second limit switch includes a second bracket. A third micro limit switch and a fourth micro limit switch are slidably connected to the second bracket. The third micro limit switch and the fourth micro limit switch are arranged parallel to each other vertically and offset from each other front and back.

[0011] Furthermore, the first bracket and the second bracket form an angle of 68.5° with the center of the top pivot rotating platform as the origin. When the angle is from 0° to 68.5°, it corresponds to the state of the gate from fully open to fully closed.

[0012] Furthermore, a hydraulic cylinder is provided on one side of the gate. The piston rod of the hydraulic cylinder is connected to the gate, and the hydraulic cylinder is installed on a fixed cylinder support.

[0013] Furthermore, both the first limit switch and the second limit switch are electrically connected to the hydraulic cylinder, and the hydraulic cylinder is electrically connected to the PLC.

[0014] Advantageous effects: The present utility model has the following advantageous effects:

[0015] 1. The azimuth angle sensor is used to obtain the angle change during the operation of the gate, and it is monitored and fed back to the PLC in real time for precise control of the opening and closing of the gate.

[0016] 2. The first bracket and the second bracket form an angle of 68.5° with the center of the top pivot rotating platform as the origin. When the angle is from 0° to 68.5°, it corresponds to the state of the gate from fully open to fully closed.

[0017] 3. The installation method of the first micro limit switch, the second micro limit switch, the third micro limit switch and the fourth micro limit switch, which are parallel up and down and offset front and back, provides multiple limit protections for the end position of the gate operation or in case of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the present invention;

[0019] Figure 2 is a schematic structural view of another perspective of the present invention;

[0020] Figure 3 is a schematic structural view of the hydraulic cylinder and the fixed cylinder support of the present invention;

[0021] Figure 4 is a schematic structural view of the first limit switch of the present invention;

[0022] Figure 5 is a schematic structural view of the second limit switch of the present invention.

[0023] In the figure: 10 - gate, 20 - top pivot rotating shaft of the gate, 30 - top pivot rotating platform, 40 - azimuth sensor, 50 - rotating limit bumper, 60 - top pivot stabilizing mechanism, 70 - limit switch assembly, 80 - hydraulic cylinder, 90 - fixed cylinder support;

[0024] 601 - first base, 602 - second base, 603 - first pull rod, 604 - first bushing, 605 - second pull rod, 606 - second bushing, 701 - first limit switch, 702 - second limit switch;

[0025] 7011 - first bracket, 7012 - first micro limit switch, 7013 - second micro limit switch, 7021 - second bracket, 7022 - third micro limit switch, 7023 - fourth micro limit switch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] 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 of the embodiments.

[0027] In conjunction with Figures 1 to 5A lock gate stroke control device based on an azimuth sensor is shown, including a lock gate 10. One end of the lock gate 10 is provided with a top pivot rotating shaft 20 of the lock gate. The top of the top pivot rotating shaft 20 of the lock gate is provided with a top pivot rotating platform 30, which is located directly above the top pivot rotating shaft 20 of the lock gate to ensure concentric rotation with the top pivot rotating shaft 20 of the lock gate. An azimuth sensor 40 and a PLC are arranged on the top pivot rotating platform 30. A rotating limit bumper 50 is arranged on the outer ring of the top pivot rotating platform 30. A top pivot stabilizing mechanism 60 is arranged on the top pivot rotating shaft 20 of the lock gate. A limit switch assembly 70 is arranged on the top pivot stabilizing mechanism 60. The azimuth sensor 40 is connected to the PLC. The azimuth sensor 40 outputs the angular velocity and rotation speed of the lock gate 10 during opening and closing in real time and feeds them back to the PLC to issue corresponding instructions.

[0028] The top pivot stabilizing mechanism 60 includes a first base 601 and a second base 602 at a certain angle. The first base 601 is provided with a first pull rod 603. The end of the first pull rod 603 is provided with a first bushing 604. The second base 602 is provided with a second pull rod 605. The end of the second pull rod 605 is provided with a second bushing 606. The first bushing 604 and the second bushing 606 are rotatably connected to the top pivot rotating shaft 20 of the lock gate.

[0029] The limit switch assembly 70 includes a first limit switch 701 and a second limit switch 702. The first limit switch 701 is installed on the first bushing 604. The second limit switch 702 is installed on the second bushing 606.

[0030] The first limit switch 701 includes a first bracket 7011. A first micro limit switch 7012 and a second micro limit switch 7013 are slidably connected to the first bracket 7011. The first micro limit switch 7012 and the second micro limit switch 7013 are arranged parallel to each other up and down and are offset from each other front and back. When the first micro limit switch 7012 fails, the rotating limit bumper 50 collides with the second micro limit switch 7013 to force the hydraulic cylinder 80 to stop operating to close the lock gate 10, avoiding the opposite impact of the two sides of the lock gate 10 and the overextension of the piston rod of the hydraulic cylinder 80, resulting in deformation and bending and affecting the closing effect of the lock gate.

[0031] The second limit switch 702 includes a second bracket 7021. A third micro limit switch 7022 and a fourth micro limit switch 7023 are slidably connected to the second bracket 7021. The third micro limit switch 7022 and the fourth micro limit switch 7023 are arranged parallel to each other up and down and are offset from each other front and back. When the third micro limit switch 7022 fails, the rotating limit bumper 50 collides with the fourth micro limit switch 7023 to force the hydraulic cylinder 80 to stop operating to close the lock gate 10, avoiding the extrusion of the two sides of the lock gate 10 and the door reservoir, resulting in the retraction of the piston rod of the hydraulic cylinder 80 and affecting the opening effect of the lock gate.

[0032] The first bracket 7011 and the second bracket 7021 form an included angle of 68.5° with the center of the top pivot rotating platform 30 as the origin. When the included angle is from 0° to 68.5°, the corresponding gate 10 has a state from fully open to fully closed.

[0033] A hydraulic cylinder 80 is arranged on one side of the gate 10. The piston rod of the hydraulic cylinder 80 is connected to the gate 10, and the hydraulic cylinder 80 is installed on the fixed cylinder support 90.

[0034] Both the first limit switch 701 and the second limit switch 702 are electrically connected to the hydraulic cylinder 80. The hydraulic cylinder 80 is electrically connected to the PLC. The PLC issues corresponding instructions to the hydraulic cylinder 80 according to the angle change of the gate 10 feedback by the azimuth sensor 40 received in real time, so as to accurately control the opening and closing of the gate 10 and avoid damaging the piston rod of the hydraulic cylinder 80 due to the change of the opening and closing angle of the gate 10.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A ship lock gate travel control device based on an azimuth sensor, characterized in that: The invention comprises a gate (10), wherein a gate top pivot rotation shaft (20) is arranged at one end of the gate (10), a top pivot rotation platform (30) is arranged at the top of the gate top pivot rotation shaft (20), an azimuth angle sensor (40) and a PLC are arranged on the top pivot rotation platform (30), a rotation limit collision block (50) is arranged on the outer ring of the top pivot rotation platform (30), a top pivot stabilizing mechanism (60) is arranged on the gate top pivot rotation shaft (20), a limit switch assembly (70) is arranged on the top pivot stabilizing mechanism (60), and the azimuth angle sensor (40) is connected to the PLC.

2. A ship lock gate stroke control device based on an azimuth sensor according to claim 1, characterized in that: The top pivot stabilizing mechanism (60) comprises a first base (601) and a second base (602) at a certain angle, wherein the first base (601) is provided with a first pull rod (603), and a first shaft sleeve (604) is provided at the end of the first pull rod (603); the second base (602) is provided with a second pull rod (605), and a second shaft sleeve (606) is provided at the end of the second pull rod (605); the first shaft sleeve (604) and the second shaft sleeve (606) are rotatably connected to the gate top pivot rotating shaft (20).

3. A ship lock gate stroke control device based on an azimuth sensor according to claim 2, characterized in that: The limit switch assembly (70) comprises a first limit switch (701) and a second limit switch (702); the first limit switch (701) is mounted on the first shaft sleeve (604), and the second limit switch (702) is mounted on the second shaft sleeve (606).

4. A ship lock gate stroke control device based on an azimuth sensor according to claim 3, characterized in that: The first limit switch (701) comprises a first bracket (7011), to which a first micro-motion limit switch (7012) and a second micro-motion limit switch (7013) are slidably connected, and the first micro-motion limit switch (7012) and the second micro-motion limit switch (7013) are arranged in parallel up and down and staggered front to back.

5. A ship lock gate stroke control device based on an azimuth sensor according to claim 4, characterized in that: The second limit switch (702) comprises a second bracket (7021), and a third micro-motion limit switch (7022) and a fourth micro-motion limit switch (7023) are slidably connected to the second bracket (7021), and the third micro-motion limit switch (7022) and the fourth micro-motion limit switch (7023) are arranged in parallel up and down and staggered front and back.

6. A ship lock gate stroke control device based on an azimuth sensor according to claim 5, characterized in that: The first bracket (7011) and the second bracket (7021) form an angle of 68.5° with the center of the top pivot rotating platform (30) as the origin. When the angle is 0° to 68.5°, the gate (10) has a state from being fully opened to being fully closed.

7. A ship lock gate stroke control device based on an azimuth sensor according to claim 6, characterized in that: A hydraulic cylinder (80) is provided on one side of the gate (10); a piston rod of the hydraulic cylinder (80) is connected to the gate (10); and the hydraulic cylinder (80) is mounted on a fixed cylinder support (90).

8. The ship lock gate stroke control device based on an azimuth sensor according to claim 7, characterized in that: The first limit switch (701) and the second limit switch (702) are both electrically connected to the hydraulic cylinder (80), and the hydraulic cylinder (80) is electrically connected to the PLC.

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