Continuous casting billet sawing machine centralized hydraulic system

Abstract

The utility model discloses a continuous casting billet saw cutting machine tool centralized hydraulic system, including power unit, conveying unit, use unit and valve group unit, the use unit is continuous casting billet saw cutting machine tool, and it contains multiple executive hydraulic elements, power unit is used to provide power oil and control oil for use unit, conveying unit is used to communicate power unit, valve group unit and each executive hydraulic element of use unit, valve group unit is used for controlling the movement of each executive hydraulic element of use unit, the utility model discloses a continuous casting billet saw cutting machine tool centralized hydraulic system, and the layout is simpler, and the energy consumption is lower in the actual use in the industrial production field, realizes that one power unit provides power source for multiple unit operation simultaneously, reduces the quantity of multiple unit operation power unit, reduces the leakage point, overcomes the malpractice of multiple unit operation needing to set up multiple power units.

Description

Technical Field

[0001] This utility model belongs to the technical field of centralized hydraulic stations, specifically relating to a centralized hydraulic system for a continuous casting billet sawing machine. Background Technology

[0002] To meet the production rhythm requirements of the next process, continuous casting billet sawing machines are usually operated by multiple units. The hydraulic stations of these units are built with independent hydraulic systems. This approach results in a messy distribution of hydraulic systems on site, high energy consumption, inconsistent models, and difficulties in inspection and maintenance. It is necessary to carry out technical transformation and optimization of the hydraulic system, introduce new technologies to reduce equipment energy consumption and improve equipment operation stability, and conduct in-depth research on the centralized hydraulic system of continuous casting billet sawing machines.

[0003] The centralized hydraulic station system for sawing machines can fully utilize the characteristics of strong load-bearing capacity and strong oil supply capacity of hydraulic stations. It can solve the problems of leakage caused by the large variety of spare parts and oil pipe interfaces in scattered hydraulic stations. At the same time, it can reduce the energy consumption of hydraulic systems by controlling the flow and pressure through the speed of servo motors.

[0004] Chinese patent application number 202111336011.3 discloses a mechanical device for intelligent constant pressure centralized oil supply and its usage method. Its main problem is that the internal filtration equipment of the centralized oil supply system has a complex structure and is not easy to clean, but it cannot solve the problems of messy distribution and high energy consumption of the hydraulic system.

[0005] Chinese patent application number 201810416244.6 discloses a method and system for energy-saving optimization of centralized hydraulic stations. It mainly solves the problem of energy saving of centralized hydraulic station oil supply by establishing an oil supply control scheme based on the internal state parameters and oil supply demand of the centralized hydraulic station. However, it cannot solve the problem of disordered distribution and high energy consumption of multi-unit hydraulic systems.

[0006] A centralized hydraulic system for a continuous casting billet sawing machine is provided, with particular emphasis on how to simplify the layout and reduce energy consumption. Utility Model Content

[0007] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a centralized hydraulic system for a continuous casting billet sawing machine, with the purpose of simplifying the layout and reducing energy consumption.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a centralized hydraulic system for a continuous casting billet sawing machine, comprising a power unit, a conveying unit, a usage unit, and a valve group unit; the usage unit is a continuous casting billet sawing machine, which includes multiple hydraulic actuators; the power unit is used to provide power oil and control oil to the usage unit; the conveying unit is used to connect the power unit, the valve group unit, and the hydraulic actuators of the usage unit; and the valve group unit is used to control the movement of the hydraulic actuators of the usage unit.

[0009] The conveying unit is a pipeline.

[0010] The power unit includes a hydraulic oil tank, a servo motor, and a pressure pump. The pressure pump is driven by the servo motor and is mounted on the upper surface of the hydraulic oil tank.

[0011] The power unit is equipped with a first accumulator on its main output oil line, which is used to store and release energy and absorb hydraulic shocks and vibrations.

[0012] A pressure sensor and a flow sensor are installed at the oil outlet of the power unit.

[0013] The valve unit includes a servo proportional valve, an overflow valve, and a second accumulator.

[0014] The outlet end of the valve unit is equipped with a pressure sensor, a flow sensor, and a temperature and vibration sensor.

[0015] The centralized hydraulic system of the continuous casting billet sawing machine of this utility model has a simpler layout and lower energy consumption in actual use in industrial production sites. It enables one power unit to provide power for multiple units at the same time, reduces the number of power units for multiple units, reduces leakage points, and overcomes the disadvantage of needing to set up multiple power units separately for multiple units. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following: Figure 1 This is a layout diagram of the centralized hydraulic system of the continuous casting billet sawing machine tool of this utility model; Figure 2 This is a layout diagram of the power unit; Figure 3 This is a layout diagram of the valve assembly unit; The diagram is marked as follows: 1. Power unit; 101. Hydraulic oil tank; 102. Servo motor; 103. Pressure pump; 104. Pressure sensor; 105. Flow sensor; 106. Level gauge; 107. First accumulator; 108. Solenoid relief valve; 109. Filter; 110. Cooling circulation assembly; 2. Conveying unit; 3. Valve assembly unit; 301. Servo proportional valve; 302. Relief valve; 303. Check valve; 304. Safety valve; 305. Second accumulator; 4. User unit; 5. Electrical control unit. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0018] It should be noted that in the following embodiments, the terms "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0019] like Figures 1 to 3 As shown, this utility model provides a centralized hydraulic system for a continuous casting billet sawing machine, including a power unit 1, a conveying unit 2, a usage unit 4, and a valve group unit 3; the usage unit 4 is a continuous casting billet sawing machine, which includes multiple hydraulic actuators; one power unit 1 is provided, which is used to provide power oil and control oil to the usage unit 4; the conveying unit 2 is used to connect the power unit 1, the valve group unit 3, and the hydraulic actuators of the usage unit 4; the valve group unit 3 is used to control the movement of the hydraulic actuators of the usage unit 4.

[0020] Specifically, the present invention provides a centralized hydraulic system for a continuous casting billet sawing machine, which is driven by a servo motor 102. It integrates multiple hydraulic systems into a single hydraulic station, and uses the servo motor 102 to precisely control the rotation of the oil pump for flow and pressure control. The pump can reach a low speed of 5-10 rpm and can achieve stepless speed regulation within the range of 0-2000 rpm. It features fast response, low noise, modular design, smaller size and weight, and convenient replacement of spare parts. It solves the problems of disorganized hydraulic system distribution, high energy consumption, and inconsistent design.

[0021] like Figure 2 As shown, the power unit 1 includes a hydraulic oil tank 101, a servo motor 102, and a pressure pump 103, which are used to provide power oil and control oil to each sawing machine. The pressure pump 103 is connected to the servo motor 102 and is mounted on the upper surface of the hydraulic oil tank 101. The oil inlet of the pressure pump 103 is connected to the oil outlet of the hydraulic oil tank 101. The pressure pump 103 is driven by the servo motor 102. The servo motor 102 precisely controls the rotation of the pressure pump 103 to control the flow and pressure. Under no-load or low-load conditions, energy saving and consumption reduction are significant.

[0022] like Figure 2As shown, the power unit 1 also includes a filter 109 and a cooling circulation assembly. The filter 109 and the cooling circulation assembly are installed on the hydraulic oil tank 101. The filter 109 filters the hydraulic oil to ensure the quality of the working oil and control oil. The cooling circulation assembly is located on the return oil line to cool the hydraulic system.

[0023] The filter 109 includes an oil outlet filter unit and an oil return filter unit. The oil outlet of the pressure pump 103 is connected to the oil inlet of the oil outlet filter unit via a solenoid relief valve 108. The oil outlet of the oil outlet filter unit is connected to the oil inlet of each valve group unit via an oil outlet pipeline. The oil return filter unit is connected to the oil inlet of the hydraulic oil tank 101. The filtered oil enters the hydraulic oil tank 101. The use of oil return filtration ensures that the oil quality in the tank is guaranteed, thereby ensuring that the cleanliness level of the entire system oil meets the requirements.

[0024] like Figure 2 As shown, a pressure sensor 104 and a flow sensor 105 are installed at the oil outlet of the power unit 1 to achieve real-time monitoring of pressure and flow. A level gauge 106 is installed on the side of the hydraulic oil tank 101, and the upper and lower ends of the level gauge 106 are connected to the hydraulic oil tank 101 to monitor the level of the hydraulic oil tank in real time.

[0025] like Figure 2 As shown, a first accumulator 107 is installed on the main output oil line of power unit 1. The first accumulator 107 is mounted on the hydraulic oil tank 101 and is used to store and release energy and absorb hydraulic shock and vibration. The first accumulator 107 is connected to the outlet of pressure pump 103 through a pipeline. The branch pipelines are set according to the number of continuous casting billet sawing machines. Each machine has an independent pressure oil line and control oil line. The electromagnetic relief valve 302108 is located at the outlet of pressure pump 103 to regulate the system pressure. The filter 109 is connected to the electromagnetic relief valve 302 to filter the system hydraulic oil and ensure the cleanliness of the oil.

[0026] like Figure 3 As shown, valve group unit 3 includes a servo proportional valve 301, an overflow valve 302, a check valve 303, a safety valve 304, and a second accumulator 305.

[0027] Valve group unit 3 uses servo proportional valve 301 to achieve precise control of the hydraulic system, with a high response frequency, and realize closed-loop control of the system. Relief valve 302 adjusts the outlet pressure of valve group unit 3. Check valve 303 ensures that the hydraulic oil of valve group unit 3 flows in the set direction. Safety valve 304 controls the maximum outlet pressure of valve group unit 3. Each valve is connected to the pump outlet in sequence through pipelines.

[0028] like Figure 3As shown, the second accumulator 305 is located at the outlet end of the valve group unit 3. It is used to absorb the hydraulic shocks and vibrations generated when the hydraulic components of the user unit 4 are working. As an emergency power source, it provides temporary pressure oil in case of pump failure or power outage, ensuring that the hydraulic components can complete the necessary actions. The second accumulator 305 is connected to the hydraulic components of the user unit 4 through pipelines.

[0029] like Figure 3 As shown, the outlet end of valve group unit 3 is connected to user unit 4. The outlet end of valve group unit 3 is equipped with pressure sensor, flow sensor and temperature and vibration sensor to collect hydraulic oil pressure, flow rate, temperature and vibration spectrum data in real time. At the same time, the data is transmitted to the electronic control unit 55 to realize real-time monitoring and dynamic adjustment of hydraulic parameters of each hydraulic component of user unit 4.

[0030] In this embodiment, the conveying unit 2 consists of various pipes used to connect the power unit 1, valve group unit 3, and the hydraulic actuators of the user unit 4.

[0031] In this embodiment, the unit 4 is a continuous casting billet sawing machine. Each hydraulic component of the unit 4 includes a clamping cylinder, a drive cylinder, and a trolley travel hydraulic motor used when sawing the continuous casting billet. The cylinder is equipped with a displacement sensor to monitor the displacement change of the cylinder piston in real time and achieve precise position control. The hydraulic motor is equipped with a rotary encoder to monitor the speed, position and operating status in real time and achieve precise control through feedback signals.

[0032] During operation, after receiving information from the power unit 1 and the user unit 4, the electronic control unit 5 analyzes data such as pressure, flow rate, vibration, and temperature, and calculates the required hydraulic oil flow rate and pressure for each unit by combining the preset working parameters of each unit. The information is then transmitted to the valve group unit 3 of each unit in the user unit 4. The valve group unit 3 activates the relevant valves, providing a power source for each actuator in the user unit 4, driving each actuator to move to the preset position. After the operation is completed, each actuator in the user unit 4 receives the instruction, reverses its action, and returns to the original zero position.

[0033] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A centralized hydraulic system for a continuous casting billet sawing machine, characterized in that, It includes a power unit, a conveying unit, a usage unit, and a valve assembly unit; The operating unit is a continuous casting billet sawing machine, which includes multiple hydraulic actuators; the power unit is used to provide power oil and control oil to the operating unit; the conveying unit is used to connect the power unit, the valve group unit and the hydraulic actuators of the operating unit; and the valve group unit is used to control the movement of the hydraulic actuators of the operating unit.

2. The centralized hydraulic system for the continuous casting billet sawing machine according to claim 1, characterized in that, The conveying unit is a pipeline.

3. The centralized hydraulic system for the continuous casting billet sawing machine according to claim 1, characterized in that, The power unit includes a hydraulic oil tank, a servo motor, and a pressure pump. The pressure pump is driven by the servo motor and is mounted on the upper surface of the hydraulic oil tank.

4. The centralized hydraulic system for the continuous casting billet sawing machine according to claim 3, characterized in that, The power unit is equipped with a first accumulator on its main output oil line, which is used to store and release energy and absorb hydraulic shocks and vibrations.

5. The centralized hydraulic system for the continuous casting billet sawing machine according to claim 3, characterized in that, A pressure sensor and a flow sensor are installed at the oil outlet of the power unit.

6. The centralized hydraulic system for a continuous casting billet sawing machine according to any one of claims 1 to 5, characterized in that, The valve unit includes a servo proportional valve, an overflow valve, and a second accumulator.

7. The centralized hydraulic system for a continuous casting billet sawing machine according to claim 6, characterized in that, The outlet end of the valve unit is equipped with a pressure sensor, a flow sensor, and a temperature and vibration sensor.

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