阅读说明：本技术 一种船闸用智能伺服启闭机系统 (Intelligent servo hoist system for ship lock ) 是由 王希强 奚宪章 张殿余 丁仁民 牛恩斌 王杭州 许明 于 2021-05-12 设计创作，主要内容包括：本发明公开了一种船闸用智能伺服启闭机系统。它包括闸门液压阀组、阀门液压阀组以及主油泵伺服电机组,主油泵伺服电机组的一端分别与闸门液压阀组和阀门液压阀组连接,所述主油泵伺服电机组的另外一端通过液压管路连接有油箱,闸门液压阀组通过液压管路连接有用于控制闸门开闭的闸门油缸,阀门液压阀组通过液压管路连接有控制阀门开闭的阀门油缸。优点是：解决了困扰船闸多年的闸门油缸漂移、阀门油缸自坠等问题,油缸锁定性优良,其结构简单,操作也十分方便,实现了闭环控制,实现了闸、阀门运行过程精准对中及良好的同步性；实现了故障不停机、检修不停航的通航要求；提高了船闸的运行效率。(The invention discloses an intelligent servo hoist system for a ship lock. It includes gate hydraulic pressure valves, valve hydraulic pressure valves and main oil pump servo motor group, and the one end of main oil pump servo motor group is connected with gate hydraulic pressure valves and valve hydraulic pressure valves respectively, the other one end of main oil pump servo motor group is connected with the oil tank through hydraulic line, and gate hydraulic pressure valves is connected with the gate hydro-cylinder that is used for controlling the gate switching through hydraulic line, and valve hydraulic pressure valves is connected with the valve hydro-cylinder of control flap switching through hydraulic line. The advantages are that: the problems of drift of a gate oil cylinder, self-falling of a valve oil cylinder and the like which plague the ship lock for many years are solved, the locking performance of the oil cylinder is excellent, the structure is simple, the operation is very convenient, the closed-loop control is realized, and the accurate centering and good synchronism in the operation process of the lock and the valve are realized; the navigation requirements of no shutdown in fault and no shutdown in maintenance are realized; the operating efficiency of the ship lock is improved.)

1. The utility model provides a ship lock is with servo headstock gear system of intelligence which characterized in that: including gate hydraulic valve group (1), valve hydraulic valve group (2) and main oil pump servo motor group (3), the one end of main oil pump servo motor group (3) is connected with gate hydraulic valve group (1) and valve hydraulic valve group (2) respectively, the other one end of main oil pump servo motor group (3) is connected with oil tank (5) through hydraulic line, gate hydraulic valve group (1) is connected with gate cylinder (6) that are used for controlling the gate switching through hydraulic line, valve hydraulic valve group (2) are connected with valve cylinder (7) of control flap switching through hydraulic line.

2. The intelligent servo hoist system for the ship lock according to claim 1, characterized in that: gate hydraulic pressure valves (1) include with gate maintenance valves (8) that main oil pump servo motor group (3) are connected, with gate hydro-cylinder (6) with gate electromagnetism ball valve (9) and gate choke valve that gate maintenance valves (8) are connected.

3. The intelligent servo hoist system for the ship lock according to claim 2, characterized in that: the gate overhaul valve group (8) comprises a gate overhaul valve (13), a gate electromagnetic directional valve (14) with position detection and a gate hydraulic control one-way valve (15).

4. The intelligent servo hoist system for the ship lock according to claim 1, 2 or 3, characterized in that: the valve hydraulic valve group (2) comprises a valve maintenance valve group (10) connected with the main oil pump servo motor group (3), a valve electromagnetic ball valve (11) connected with the valve oil cylinder (7) and the valve maintenance valve group (10), a valve throttle valve (12) and a valve overflow valve.

5. The intelligent servo hoist system for the ship lock of claim 4, characterized in that: the valve overhauling valve group (10) comprises a valve overhauling valve (16), a valve electromagnetic reversing valve (17) with position detection and a valve hydraulic control one-way valve (18).

6. The intelligent servo hoist system for the ship lock according to claim 1, 2, 3 or 5, characterized in that: the main oil pump servo motor set (3) is connected with the gate hydraulic valve set (1) and the valve hydraulic valve set (2) respectively after passing through a system overflow valve, and the main oil pump servo motor set (3) is connected with the gate hydraulic valve set (1) and the valve hydraulic valve set (2) respectively after passing through an oil inlet oil filter (18) and a flowmeter (19).

7. The intelligent servo hoist system for the ship lock of claim 6, characterized in that: and a system electromagnetic directional valve is connected to the system overflow valve (4).

8. The intelligent servo hoist system for the ship lock of claim 1, 2, 3, 5 or 7, wherein: and a standby oil pump servo motor set (19) is arranged between the front ends of the gate hydraulic valve set (1) and the valve hydraulic valve set (2) and the oil tank (5).

9. The intelligent servo hoist system for the ship lock of claim 8, characterized in that: two gate maintenance valve groups are arranged between the main oil pump servo motor group (3) and the gate oil cylinder (6).

10. The intelligent servo hoist system for the ship lock of claim 9, characterized in that: two sets of valve maintenance valve groups are arranged between the main oil pump servo motor group (3) and the valve oil cylinder (7); the method is characterized in that: the oil tank (1) is provided with a pressure gauge, a liquid level liquid thermometer and an HMI.

Technical Field

The invention relates to a control system of a hydraulic hoist for a ship lock, in particular to an intelligent servo hoist system for the ship lock.

Background

The lock headstock gear is the unblocked important assurance of canal on the canal, and the lock headstock gear must have high reliability, easily adjusts moreover, in case break down, is convenient for in time investigate and solve the processing, for the safe operation of ship lock protects and drives the ship, among the prior art, the hydraulic headstock gear mainly adopts the hydraulic power unit who is the main two-way cartridge valve that is used for the big canal of jing hangzhong northwest section ship lock, and its main problem that exists has:

1. the cartridge valve has large drift diameter, complex form, more leakage points, inconvenient disassembly and assembly, large influence on maintenance by experience and difficult troubleshooting.

2. The oil pump flow control is inaccurate, manual flow regulation is inconvenient, time and labor are wasted, and the regulation range is limited.

3. The drift phenomenon after the gate is closed due to the leakage problem in the valve member cannot be completely eradicated.

4. The operation of the gates at the two sides can not be completely synchronous, has errors and can not be eliminated.

5. The operating speed of the gate valve cannot be remotely monitored and adjusted.

6. The on-off state of the oil circuit of the pump station and the running state of the main control valve cannot simulate running in real time, and the pump station is difficult to remove after a fault occurs, so that navigation is influenced.

7. The information display of oil level, oil temperature, oil pressure, flow, oil cylinder running speed and position, gate valve running speed, time and position and the like is incomplete, historical data cannot be inquired, and data cannot be gathered.

Disclosure of Invention

Aiming at the problems, the invention provides an intelligent servo hoist system for a ship lock, which replaces the existing hydraulic pump station mainly comprising a two-way cartridge valve, and has the advantages of simple structure, convenient assembly and disassembly and very high precision and dynamic response performance.

In order to solve the technical problem, the intelligent servo hoist system for the ship lock comprises a gate hydraulic valve group, a valve hydraulic valve group and a main oil pump servo motor group, wherein one end of the main oil pump servo motor group is respectively connected with the gate hydraulic valve group and the valve hydraulic valve group, the other end of the main oil pump servo motor group is connected with an oil tank through a hydraulic pipeline, the gate hydraulic valve group is connected with a gate oil cylinder for controlling the opening and closing of a gate through the hydraulic pipeline, and the valve hydraulic valve group is connected with a valve oil cylinder for controlling the opening and closing of the valve through the hydraulic pipeline.

The gate hydraulic valve group comprises a gate maintenance valve group connected with the main oil pump servo motor group, a gate electromagnetic ball valve connected with the gate oil cylinder and the gate maintenance valve group, and a gate throttle valve.

The gate maintenance valve group comprises a gate maintenance valve, a gate electromagnetic reversing valve with position detection and a gate hydraulic control one-way valve.

The valve hydraulic valve group comprises a valve maintenance valve group connected with the main oil pump servo motor group, a valve electromagnetic ball valve connected with the valve oil cylinder and the valve maintenance valve group, a valve throttle valve and a valve overflow valve.

The valve overhauling valve group comprises a valve overhauling valve, a valve electromagnetic reversing valve with position detection and a valve hydraulic control one-way valve.

The main oil pump servo motor set is respectively connected with the gate hydraulic valve set and the valve hydraulic valve set after passing through a system overflow valve, and is also respectively connected with the gate hydraulic valve set and the valve hydraulic valve set after passing through an oil inlet filter and a flowmeter.

And a system electromagnetic directional valve is connected to the system overflow valve.

And a standby oil pump servo motor set is arranged between the front ends of the gate hydraulic valve set and the valve hydraulic valve set and the oil tank.

Two gate maintenance valve sets are arranged between the main oil pump servo motor set and the gate oil cylinder.

Two sets of valve maintenance valve groups are arranged between the main oil pump servo motor group and the valve oil cylinder.

And the oil tank is provided with a pressure gauge, a liquid level liquid thermometer and an HMI.

The invention has the advantages that:

1. the oil pump servo motor set is adopted to be respectively combined with the three-position four-way reversing valve with the position detection function in the gate hydraulic valve set and the valve hydraulic valve set, and the gate hydraulic control one-way valve and the valve hydraulic control one-way valve are matched, so that the problems of gate oil cylinder drifting, valve oil cylinder self-falling and the like which are puzzled in a ship lock for many years are solved, the oil cylinder locking performance is excellent, the structure is simple, and the operation is also very convenient

2. The gate oil cylinder realizes automatic control in operation, the oil cylinder inlet and outlet flow control is more accurate, online flow regulation is realized, closed-loop control is realized by matching with an oil cylinder displacement sensor, and accurate centering and good synchronism in the operation process of the gate and the valve are realized.

3. According to the scheme, the main hydraulic oil circuit control system and the auxiliary hydraulic oil circuit control system are integrated, the main hydraulic oil circuit control system can be switched to the standby hydraulic oil circuit control system in time after a fault occurs, and the navigation requirements of no shutdown and no shutdown during maintenance are met.

4. The slow-fast-slow running of the opening and closing speed of the gate is realized by controlling the rotating speed of the motor, and the speed can be adjusted in multiple stages in a fast running stage; the operation speed of the valve can be adjusted on line according to the water level change and the operation state by lifting, so that the operation efficiency of the ship lock is improved;

5. various display instruments such as a pressure gauge, a liquid level liquid thermometer and the like and an HMI (human machine interface) are integrated above the oil tank at the same time, so that remote monitoring and control are realized, online monitoring of oil level, oil temperature and oil pressure can be realized on an operation platform, the on-off state of a brake and a valve oil way and the running state of a main control valve can be dynamically displayed on a configuration interface in real time, and the running state of a pump station is monitored, recorded and changed on site and remotely.

Drawings

Fig. 1 is a schematic diagram of an intelligent servo hoist system for a ship lock according to the present invention.

Detailed Description

The intelligent servo hoist system for the ship lock of the invention is further described in detail with reference to the accompanying drawings and the detailed description.

As shown in the figure, the intelligent servo hoist system for the ship lock comprises a gate hydraulic valve group 1, a valve hydraulic valve group 2 and a main oil pump servo motor group 3, wherein the main oil pump servo motor group 3 can adopt a servo motor and gear pump combination, the accurate control of the motor rotating speed is realized by adjusting the magnitude of an input electric signal on line so as to control the output oil quantity and realize the closed-loop control of position, speed and moment, one end of the main oil pump servo motor group 3 is respectively connected with the gate hydraulic valve group 1 and the valve hydraulic valve group 2, the other end of the main oil pump servo motor group 3 is connected with an oil tank 5 through a hydraulic pipeline, the gate hydraulic valve group 1 is connected with a gate oil cylinder 6 for controlling the opening and closing of a gate through a hydraulic pipeline, the gate oil cylinder 6 is connected with an oil tank through a gate check valve 23, the valve hydraulic valve group 2 is connected with a valve oil cylinder 7 for controlling the opening and closing of a valve through a hydraulic pipeline, the valve oil cylinder 7 is connected with a valve 21, and the valve oil cylinder 7 is connected with an oil tank through a valve check valve 22; the gate hydraulic valve group 1 comprises a gate maintenance valve group 8, a gate electromagnetic ball valve 9 and a gate overflow valve, wherein the gate maintenance valve group 8 comprises a gate maintenance valve 13, a gate electromagnetic directional valve 14 with a position detection function and a gate hydraulic control one-way valve 15, the gate electromagnetic directional valve 14 with the position detection function is a three-position four-way directional valve, the main oil pump servo motor group 3 is connected with the gate maintenance valve group 8 through a system overflow valve 4, the system overflow valve 4 is connected with the system electromagnetic directional valve, the main oil pump servo motor group 3 is also connected with the gate maintenance valve group 8 through an oil inlet filter 18 and a flowmeter 19, and the gate maintenance valve group 8 is also connected with an oil tank through an oil return filter 20; the valve hydraulic valve group 2 comprises a valve maintenance valve group 10, a valve electromagnetic ball valve 11, a valve throttle valve 12 and a valve overflow valve, wherein the valve electromagnetic ball valve 11 is connected with a valve oil cylinder 7 and the valve maintenance valve group 10, the valve maintenance valve group 10 comprises a valve maintenance valve 16, a valve electromagnetic reversing valve 17 with position detection and a valve hydraulic control one-way valve 18, as can be seen from the figure, the valve electromagnetic ball valve 11 and the valve throttle valve 12 are connected between a rod cavity and a rodless cavity of the valve oil cylinder 7, the valve electromagnetic reversing valve 17 with position detection is also a three-position four-way reversing valve, a main oil pump servo motor group 3 is also connected with the valve maintenance valve group 10 through a system oil filter 4, the main oil pump servo motor group 3 is also connected with the valve maintenance valve group 10 through an oil inlet 18 and a flow meter 19, and the valve maintenance valve group 10 is also connected with an oil filter 20.

In addition, two sets of gate maintenance valve groups with the same structure can be arranged between the main oil pump servo motor group 3 and the gate oil cylinder 6, two sets of valve maintenance valve groups with the same structure can be arranged between the main oil pump servo motor group 3 and the valve oil cylinder 7, and meanwhile, various display instruments such as a pressure gauge, a liquid level liquid thermometer and the like and an HMI (human machine interface) can be arranged on the oil tank 1, so that remote monitoring and control are realized.

Further, a backup oil pump servo motor set 19 may be provided between the front ends of the gate hydraulic valve set 1 and the valve hydraulic valve set 2 and the oil tank 5.

The specific working principle of the invention is as follows:

opening a gate: the main oil pump servo motor set 3 is started in an idle state, the overflow valve 4 of the system works normally for 3-5 seconds to maintain the set pressure of the system, oil enters a rod cavity of the gate oil cylinder 6 through the main oil pump servo motor set 3, the oil inlet filter 18, the flowmeter 19 and the gate maintenance valve set 8 (the gate electromagnetic directional valve 14 with position detection is electrified left), oil in a rodless cavity of the gate oil cylinder 6 flows back to an oil tank through the hydraulic gate maintenance valve set 8 and the oil return filter 20, and the gate is opened.

The running speed of the gate oil cylinder 6 is controlled by the rotating speed of the servo motor, and the gate hydraulic control one-way valve 15 of the gate overhaul valve group 8 can effectively lock the oil cylinder to move after the gate oil cylinder 6 stops running, so that the gate is prevented from drifting; and displacement sensors are additionally arranged on the left side and the right side of the gate oil cylinder 6, and the operation speed of the oil cylinder is adjusted in real time along with the displacement sensors, so that the operation synchronism of the gates on the two sides is ensured.

Closing the gate: the main oil pump servo motor set 3 is started in no-load mode, the overflow valve 4 of the system works normally for 3-5 seconds to maintain the set pressure of the system, oil simultaneously enters a rod cavity and a rodless cavity of the gate oil cylinder 6 through the main oil pump servo motor set 3, an oil inlet filter 18, a flowmeter 19 and a gate maintenance valve set 8 (the right position of a gate electromagnetic directional valve 14 with position detection is electrified), and the gate is closed by utilizing the differential action of the oil cylinder; the running speed of the gate oil cylinder 6 is controlled by the rotating speed of the servo motor, and the gate hydraulic control one-way valve 15 can effectively lock the oil cylinder to move after the gate oil cylinder 6 stops running, so that the gate is prevented from drifting.

Opening a valve: the main oil pump servo motor set 3 is started in no-load mode, the overflow valve 4 of the system works normally for 3-5 seconds to maintain the set pressure of the system, oil enters a rod cavity of the valve oil cylinder 7 through the main oil pump servo motor set 3, the oil inlet filter 18, the flowmeter 19 and the valve maintenance valve set 10 (the valve electromagnetic reversing valve 17 with position detection is electrified on the left), oil in a rodless cavity of the valve oil cylinder 7 flows back to an oil tank through the hydraulic valve maintenance valve set 10 and the oil return filter 20, and the valve is opened.

The speed of the valve oil cylinder 7 is controlled by the rotating speed of the servo motor, and the valve hydraulic control one-way valve 18 can effectively lock the oil cylinder to move after the valve oil cylinder 7 stops operating, so that the valve is prevented from self-falling. And displacement sensors are additionally arranged on the left side and the right side of the valve oil cylinder 7, and the running speed of the oil cylinder is adjusted in real time along with the displacement sensors, so that the running synchronism of the valves on the two sides is ensured.

Forced falling of the valve: the main oil pump servo motor set 3 is started in no-load mode, the overflow valve 4 of the system works normally for 3-5 seconds to maintain the set pressure of the system, oil simultaneously enters a rod cavity and a rodless cavity of the valve oil cylinder 7 through the main oil pump servo motor set 3, an oil inlet filter 18, a flowmeter 19 and a valve maintenance valve set 10 (a valve electromagnetic reversing valve 17 with position detection is electrified on the right), and the valve is closed by utilizing the differential action of the oil cylinder; the operation speed of the valve oil cylinder 7 is controlled by the rotating speed of the servo motor, and the valve hydraulic control one-way valve 18 can effectively lock the oil cylinder to move after the valve oil cylinder 7 stops operating, so that the valve is prevented from self-falling, and the forced falling function is applied to emergency.

A self-falling valve: the valve electromagnetic ball valve 11 is switched by electricity, the self-falling function is realized by the piston rod of the valve oil cylinder 7 and the valve 21 by the self-gravity, the self-falling speed is adjusted by the valve throttle valve 12, the oil liquid in the rod cavity of the valve oil cylinder 7 flows into the rodless cavity through the valve throttle valve 12 and the valve electromagnetic ball valve 11, and meanwhile, the hydraulic oil in the oil tank supplements the oil for the rodless cavity of the valve oil cylinder 7 through the valve one-way valve 22, so that the energy-saving effect is good when the valve electromagnetic ball valve is used for the conventional valve falling action.

The main oil pump servo motor set 3 and the standby oil pump servo motor set 19 are mutually standby, and can be switched at any time when a fault occurs, so that the normal operation of the ship lock is ensured.

Two sets of gate maintenance valve banks and two sets of valve maintenance valve banks are respectively provided with two sets of independent main hydraulic oil circuit systems, one set of main hydraulic oil circuit system and one set of standby hydraulic oil circuit system are used, and switching can be performed on a configuration interface after a fault occurs, so that the fault is prevented from stopping and the fault is prevented from stopping.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.