Miter gate closing synchronous control system

Abstract

A gate closing synchronous control system of a miter gate comprises two hydraulic hoists, two gate leaves and a master control system, the two hydraulic hoists are installed on a concrete structure, a top pivot and a bottom pivot are installed on the concrete structure respectively, and a gate shaft of each gate leaf is rotationally installed on the top pivot and the bottom pivot respectively; in conclusion, compared with a miter gate synchronously opened and closed in the prior art, the miter gate capable of being opened and closed synchronously can be directly installed on a miter gate which is operated, the existing miter gate is improved, and the miter gate capable of being opened and closed synchronously mainly comprises the shaft body, the flange ring, the monitoring box, the gear and the rotary encoder which are all existing conventional components, thereby being low in purchase cost, convenient to install and high in practicability. And large-scale construction is not needed, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of miter gates, and in particular relates to a miter gate closing synchronous control system. Background Art

[0002] The miter gate is a gate whose left and right door leaves rotate around the vertical door axis in the side wall of the waterway respectively. When the waterway is closed, it forms a "human" shape when viewed from above. When the miter gate is working, it is driven to rotate by the hydraulic opening and closing parts, and the two door leaves form a three-hinged arch to withstand the water pressure; when the waterway is open, the two door leaves are located in the door niche of the side wall, do not withstand the water pressure, and are in a non-working state; in the process of closing, the two door leaves will encounter the problem of not being able to close synchronously and get into place about 10 cm before reaching the fully closed position, that is, the door leaf with a faster running speed on one side has been closed, while the door leaf on the other side is still on the way to closing; because the door leaf that has not been closed in place cannot stop running automatically, it will collide and squeeze with the door leaf that closes quickly, which may cause damage to the miter gate and the concrete structure; the invention patent with patent announcement number CN113026684B discloses A self-locking synchronous opening and closing miter gate, although the problem of difficulty in closing between the first door body and the second door body is solved by setting up an opening and closing device, this technical solution provides a new opening and closing device with a complex structure, which is completely different from the existing hydraulic opening and closing machine, and cannot solve the problem that the manual gates that have been implemented cannot be closed synchronously. In addition, the opening and closing device is mainly installed on the concrete structure on both sides of the miter gate and spans the top of the miter gate, which is difficult to construct. The miter gate is blocked during operation, and personnel cannot directly view the operation of the gate. In addition, the opening and closing device includes multiple sets of motors, hydraulic cylinders and other components, and the construction cost is high, so there is no feasibility. Utility Model Content

[0003] The utility model aims to provide a miter gate closing synchronous control system to solve the technical problem that the existing open patent technical solutions cannot solve the already implemented manual gates that cannot be closed synchronously and have no feasibility.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A miter gate closing synchronous control system comprises two sets of hydraulic hoists, two door leaves and a general control system, wherein the two sets of hydraulic hoists are installed on a concrete structure, a top pivot and a bottom pivot are respectively installed on the concrete structure, and a door shaft of each door leaf is rotatably installed on the top pivot and the bottom pivot respectively, and the general control system controls the two sets of hydraulic hoists to push and pull the two door leaves, and also comprises two sets of synchronous monitoring devices, which are respectively used to monitor the opening of the two door leaves;

[0006] Each set of synchronous monitoring devices includes a monitoring box, a first shaft and a second shaft. The first shaft is installed at the top of the door shaft, and the first shaft coincides with the axis of the door shaft. The first shaft is installed with a first gear. The monitoring box is installed on the concrete structure on one side of the door leaf. The second shaft is installed in the monitoring box by rotation. A rotary encoder and a second gear are provided at the end of the second shaft. One side of the monitoring box is open, and the second gear is meshed with the first gear. The rotary encoder is connected to the overall control system, and the overall control system controls the hydraulic system of the hydraulic gate opener according to the information monitored by the rotary encoder.

[0007] Furthermore, a protective cover is installed on the side of the monitoring box, and the protective cover is arranged above the first gear.

[0008] Furthermore, an upper flange ring is installed at the lower end of the first shaft body, a lower flange ring is welded to the upper end of the door shaft, and the upper flange ring and the lower flange ring are connected by a plurality of bolts.

[0009] Furthermore, a hidden groove is provided on the top side of one of the door leaves, and a mechanical position monitoring component is installed in the hidden groove;

[0010] The mechanical in-place monitoring component includes a spring, a top pressure plate and a pressure floating plate. A floating groove is arranged at the bottom of the hidden groove, and a pressure sensor is arranged at the bottom of the floating groove. The pressure floating plate is located in the floating groove, and the pressure floating plate can move in the floating groove. With the water flow direction as the front, the front end of the top pressure plate is hingedly installed in the hidden groove through a pin shaft. The spring is connected between the pressure floating plate and the top pressure plate. Under the elastic force of the spring, the pressure floating plate contacts the pressure sensor; the pressure sensor is connected to the overall control system.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model installs a synchronous monitoring device on the miter gate, monitors the door leaf opening speed in real time through the synchronous monitoring device, and controls the electromagnetic speed regulating valve of the hydraulic system through the total control system to adjust the hydraulic cylinder extension and retraction speed of the two sets of hydraulic opening and closing machines, thereby finally realizing the synchronous opening of the two door leaves. Compared with the synchronous opening and closing miter gate of the existing patent, the utility model can be directly installed on the miter gate that has been in operation, thereby improving the existing miter gate. The device mainly includes a shaft body, a flange ring, a monitoring box, a gear and a rotary encoder, which are all existing conventional components with low procurement cost and easy installation, without large-scale construction and strong feasibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1This is a structural schematic diagram of a miter gate closing synchronous control system of the utility model;

[0014] Figure 2 This is a schematic diagram of the installation of the synchronous monitoring device;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The present invention is further described in detail below in conjunction with the embodiments.

[0018] like Figure 1 and Figure 2 As shown, a specific embodiment 1 of a miter gate closing synchronous control system provided by the utility model:

[0019] A miter gate closing synchronous control system comprises two sets of hydraulic hoists 1, two door leaves 2 and a general control system, wherein the two sets of hydraulic hoists 1 are installed on a concrete structure 3, a top pivot 4 and a bottom pivot are respectively installed on the concrete structure 3, a door shaft 5 of each door leaf 2 is rotatably installed on the top pivot 4 and the bottom pivot respectively, the general control system controls the two sets of hydraulic hoists 1 to push and pull the two door leaves 2, and also comprises two sets of synchronous monitoring devices 100, the two sets of synchronous monitoring devices 100 are respectively used to monitor the opening of the two door leaves 2;

[0020] Each set of synchronous monitoring devices 100 includes a monitoring box 6, a first shaft body 7 and a second shaft body 8. The first shaft body 7 is installed at the top of the door shaft 5, and the axis of the first shaft body 7 coincides with the axis of the door shaft 5. In order to facilitate the installation of the first shaft body 7 at the top of the door shaft 5 of the existing herringbone door shaft 5 system, a lower flange ring 9 can be welded at the top of the door shaft 5, and an upper flange ring 10 can be welded at the lower end of the first shaft body 7. The upper flange ring 10 is connected to the lower flange ring 9 and fixed with bolts.

[0021] A first gear 12 is installed on the first shaft 7, and the monitoring box 6 is installed on the concrete structure 3 on one side of the door leaf 2. The first shaft 7 and the first gear 12 are exposed to the outside. In order to prevent them from being damaged by factors such as light and rain erosion for a long time, a protective cover 13 can be installed on the side of the monitoring box 6. The protective cover 13 is arranged above the first gear 12, and the protective cover 13 protects the first gear 12 and the first shaft 7; the second shaft 8 is installed in the monitoring box 6 in a rotating manner, and a rotary encoder 14 and a second gear 15 are provided at the end of the second shaft 8. One side of the monitoring box 6 is open, and the second gear 15 is meshed with the first gear 12; the rotary encoder 14 is connected to the overall control system, and the overall control system controls the hydraulic system of the hydraulic gate hoist 1 according to the information monitored by the rotary encoder 14, specifically the electromagnetic speed regulating valve in the hydraulic system, and the electromagnetic speed regulating valve controls the movement speed of the hydraulic cylinder of the hydraulic gate hoist 1.

[0022] The synchronous control working principle of a miter gate closing synchronous control system in the present embodiment is: the overall control system controls two groups of hydraulic gate hoists 1 to push the two door leaves 2 to rotate around the axis of the door shaft 5. The first shaft 7 is fixedly connected to the door shaft 5. The first shaft 7 rotates with the door shaft 5. The first shaft 7 drives the second shaft 8 to rotate through the meshing transmission of the first gear 12 and the second gear 15. The rotary encoder 14 on the second shaft 8 can monitor the angle and speed of rotation of the second shaft 8 and transmit the information to the overall control system. The overall control system controls the electromagnetic speed regulating valve of the hydraulic system according to the monitored information of the rotation of the second shaft 8, and finally changes the movement speed of the hydraulic cylinder of the hydraulic gate hoist 1. The hydraulic cylinders of the two groups of hydraulic gate hoists 1 extend synchronously to achieve synchronous closing of the door leaves 2, avoiding uneven structural stress caused by asynchrony.

[0023] As another embodiment of the utility model, a mechanical in-place monitoring component is installed on the door leaf 2. The mechanical in-place monitoring component monitors the in-place status of the two door leaves 2 through a mechanical structure, so that the two door leaves fit tightly, and then feeds back the information to the overall control system and the hydraulic system. Specifically, Figure 3 As shown, a hidden groove 16 is provided on the top side of the left door leaf 2, and a mechanical in-place monitoring component is installed in the hidden groove 16;

[0024] The mechanical in-place monitoring component includes a spring 17, a top pressure plate 18 and a pressure floating plate 19. A floating groove is arranged at the bottom of the hidden groove 16. A pressure sensor 20 is arranged at the bottom of the floating groove. The pressure floating plate 19 is located in the floating groove, and the pressure floating plate 19 can move in the floating groove. With the water flow direction as the front, the front end of the top pressure plate 18 is hingedly installed in the hidden groove 16 through a pin shaft 21. The spring 17 is connected between the pressure floating plate 19 and the top pressure plate 18. Under the elastic force of the spring 17, the pressure floating plate 19 contacts the pressure sensor 20; the pressure sensor 20 is connected to the overall control system.

[0025] When the door leaf 2 is opened, the top pressure plate 18 is acted upon by the elastic force of the spring 17, and the rear part of the top pressure plate 18 protrudes from the hidden groove 16. When the miter gate is closed synchronously, the top pressure plate 18 is acted upon by the other door leaf 2, and the rear part of the top pressure plate 18 is pressed into the hidden groove 16. The spring 17 is compressed, and the compression force is transmitted to the pressure floating plate 19. The pressure floating plate 19 transmits the compression force evenly to the pressure sensor 20. The pressure sensor 20 monitors the pressure value and transmits it to the main control system. If the pressure value reaches the predetermined pressure value, it means that the two door leaves 2 have completed the synchronous closing operation. The main control system controls the hydraulic system, and the hydraulic cylinder of the hydraulic opening and closing machine 1 stops working.

[0026] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A miter gate closing synchronous control system, comprising two sets of hydraulic hoists, two door leaves and a general control system, wherein the two sets of hydraulic hoists are installed on a concrete structure, and a top pivot and a bottom pivot are respectively installed on the concrete structure, and the door shaft of each door leaf is rotatably installed on the top pivot and the bottom pivot respectively, and the general control system controls the two sets of hydraulic hoists to push and pull the two door leaves, and is characterized in that: It also includes two sets of synchronous monitoring devices, which are used to monitor the opening of two door leaves respectively; Each set of synchronous monitoring devices includes a monitoring box, a first shaft and a second shaft. The first shaft is installed at the top of the door shaft, and the first shaft coincides with the axis of the door shaft. The first shaft is installed with a first gear. The monitoring box is installed on the concrete structure on one side of the door leaf. The second shaft is installed in the monitoring box by rotation. A rotary encoder and a second gear are provided at the end of the second shaft. One side of the monitoring box is open, and the second gear is meshed with the first gear. The rotary encoder is connected to the overall control system, and the overall control system controls the hydraulic system of the hydraulic gate opener according to the information monitored by the rotary encoder.

2. A miter gate closing synchronous control system according to claim 1, characterized in that: A protective cover is installed on the side of the monitoring box, and the protective cover is arranged above the first gear.

3. A miter gate closing synchronous control system according to claim 1, characterized in that: An upper flange ring is installed at the lower end of the first shaft body, a lower flange ring is welded at the upper end of the door shaft, and the upper flange ring and the lower flange ring are connected by a plurality of bolts.

4. A miter gate closing synchronous control system according to claim 3, characterized in that: A hidden groove is provided on the top side of one of the door leaves, and a mechanical position monitoring component is installed in the hidden groove; The mechanical in-place monitoring component includes a spring, a top pressure plate and a pressure floating plate. A floating groove is arranged at the bottom of the hidden groove, and a pressure sensor is arranged at the bottom of the floating groove. The pressure floating plate is located in the floating groove, and the pressure floating plate can move in the floating groove. With the water flow direction as the front, the front end of the top pressure plate is hingedly installed in the hidden groove through a pin shaft. The spring is connected between the pressure floating plate and the top pressure plate. Under the elastic force of the spring, the pressure floating plate contacts the pressure sensor; the pressure sensor is connected to the overall control system.

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