Novel hydraulic station

Abstract

The utility model relates to a novel hydraulic station which has the characteristics of compact structure, stable performance and simplicity and convenience in operation. The hydraulic station is mainly composed of a totally-closed oil tank, an external motor, a liquid level meter, a variable vane pump, a stacked electromagnetic directional valve integrated in a valve block, a stacked pressure reducing valve, a stacked throttle valve, an air cooler, a hydraulic pressure gauge, an air filter and a pipe joint. The oil tank is designed to be totally closed, the motor is externally arranged, and stability and reliability of the hydraulic system are effectively improved. The integrated valve block simplifies the pipeline layout, and the reasonable configuration of the air cooler and the air filter further improves the system performance and prolongs the service life. The design of the hydraulic station aims at providing an efficient and safe working network, and the hydraulic station is suitable for various industrial occasions.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic systems for CNC lathes, and specifically to a new type of hydraulic station. Background Art

[0002] A hydraulic station is a hydraulic device composed of a drive motor, hydraulic pump, oil tank, throttle valve, relief valve, and other equipment. Its primary function is to convert mechanical energy into hydraulic energy and then provide various functions such as pressure, flow, and directional control according to system requirements. These functions generally power mechanical operation, enabling efficient, precise, and safe operation of mechanical equipment. Traditional hydraulic station designs require continuous and stable pressure, flow, and directional control to ensure the proper operation of mechanical equipment. However, existing hydraulic stations for CNC lathes may suffer from issues such as low heat removal efficiency and improper media management, resulting in reduced system efficiency and increased maintenance costs. Therefore, it is necessary to design a new hydraulic station that improves operational efficiency and stability. Utility Model Content

[0003] The purpose of this utility model is to provide a new hydraulic station with compact structure, stable performance and easy operation. This application provides the following technical solutions: a new hydraulic station, comprising:

[0004] A fuel tank, a motor, a liquid level gauge, a variable vane pump, a valve block, a superimposed electromagnetic reversing valve, a superimposed pressure reducing valve, a superimposed throttle valve, an air cooler, a hydraulic gauge, an air filter, and a pipe joint. The fuel tank is fully enclosed, the motor is arranged outside the fuel tank and is used to drive the variable vane pump to rotate, the liquid level gauge is arranged in the fuel tank and is used to monitor the liquid level of the hydraulic oil in the fuel tank, the oil passages of the superimposed electromagnetic reversing valve, the superimposed pressure reducing valve, and the superimposed throttle valve are all integrated in the valve block, the air cooler is installed on one side of the top of the fuel tank, the hydraulic gauge is installed on the oil passage leading to the superimposed pressure reducing valve, and the air filter is arranged on the upper cover of the fuel tank.

[0005] The pipe joint is connected to the valve block and is used to connect to the pipeline so that various components in the hydraulic station can be connected to form a complete working network.

[0006] Preferably, the present technical solution further comprises an oil suction filter hopper, which is arranged at the inlet of the oil suction pipe connected to the variable vane pump.

[0007] Preferably, the present technical solution further comprises an oil drain port, which is arranged at the lowest position of the side wall of the oil tank.

[0008] Preferably, the present technical solution further comprises an oil return baffle, which is arranged in the oil tank and located between the oil suction pipe and the oil return pipe.

[0009] Preferably, the present technical solution further comprises a magnet, which is arranged at the bottom of the oil tank.

[0010] Preferably, the interior of the oil tank is treated with anti-corrosion treatment, and the upper cover is sealed with a sealing strip.

[0011] Preferably, the pipe joint adopts a quick connector design to facilitate quick connection and disconnection.

[0012] Preferably, the oil drain port is provided with a quick release valve to facilitate the rapid discharge of the hydraulic oil.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This hydraulic station utilizes a fully enclosed oil tank, effectively preventing direct contact between the hydraulic oil and the outside world, improving the stability and reliability of the hydraulic system. Placing the motor outside the tank not only reduces internal tank space but also reduces the impact of motor heat on the hydraulic oil, helping to maintain a stable hydraulic oil temperature. The presence of a level gauge makes hydraulic oil level monitoring intuitive and convenient. By integrating the oil passages for the modular solenoid directional valve, modular pressure reducing valve, and modular throttle valve into the valve block, the hydraulic station's piping layout is simplified, making the entire hydraulic system more compact. The strategically positioned air cooler ensures timely cooling of the hydraulic oil, effectively preventing overheating that could affect system performance. The hydraulic gauge is also strategically positioned for real-time monitoring of oil line pressure, ensuring the system operates at a safe operating pressure. The installation of an air filter further enhances hydraulic oil cleanliness, reduces system failures caused by oil contamination, and extends the life of the hydraulic system. Pipe fittings connect the various components of the hydraulic station into a complete working network, improving overall system coordination and efficiency. In summary, this new hydraulic station improves the stability and reliability of the hydraulic system, reduces the failure rate, simplifies the pipeline layout, and improves the working efficiency and safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A side view of a novel hydraulic station proposed in an embodiment of the present application;

[0016] Figure 2 This is a front view of a new hydraulic station proposed in an embodiment of the present application;

[0017] Figure 3 This is a top view of a new hydraulic station proposed in an embodiment of the present application;

[0018] In the figure: 1. Fuel tank; 2. Motor; 3. Liquid level gauge; 4. Variable displacement vane pump; 5. Valve block; 6. Superimposed electromagnetic reversing valve; 7. Superimposed pressure reducing valve; 8. Superimposed throttle valve; 9. Air cooler; 10. Hydraulic gauge; 11. Air filter; 12. Pipe joint; 13. Oil suction filter; 14. Oil drain port; 15. Oil return baffle; 16. Magnet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] It should be noted that, in the description of this application, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on this application.

[0021] Furthermore, it should be understood that for ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0022] It should be noted that like numbers and letters represent similar items in the following figures, so once an item is defined or described in one figure, it will not need to be further discussed and described in detail in the description of the subsequent figures.

[0023] In order to solve the technical problems in the background technology, such as Figure 1-3 As shown, the present application provides a technical solution: a new hydraulic station, which has the following characteristics:

[0024] The oil tank 1 is made of durable materials such as carbon steel or stainless steel to ensure it is fully enclosed and pressure-resistant. The interior of the oil tank 1 undergoes special anti-corrosion treatment to prevent rust and corrosion, extending its service life. A sealing strip is installed on the top cover of the oil tank 1 to ensure a tight seal, preventing hydraulic oil leakage and the intrusion of external contaminants. The motor 2 is mounted outside the oil tank 1 and directly connected to the variable displacement vane pump 4 via a coupling to drive the pump. The power, voltage, and frequency of the motor 2 are 1.5 kW, 380 V, and 50 Hz, respectively, ensuring sufficient power. A level gauge 3 is mounted on the side of the oil tank 1 to visually monitor the hydraulic oil level within the tank 1. The level gauge is clearly marked with the high and low filling points. The design of the level gauge 3 ensures that it issues a warning when the hydraulic oil level is too low to prevent the pump from draining. The variable displacement vane pump 4 is selected according to the system requirements and connected to the motor 2 via a coupling to achieve variable displacement to accommodate varying operating pressures and flow rates. Driven by motor 2, variable displacement vane pump 4 provides a stable flow of hydraulic oil. Valve block 5 is an integrated assembly that houses multiple hydraulic control valves, including a stacked solenoid directional control valve 6, a stacked pressure reducing valve 7, and a stacked throttle valve 8. The oil passages for these valves are all integrated into valve block 5. This integrated design simplifies the hydraulic station's structure, reduces piping connections, and improves system reliability and ease of maintenance. The stacked solenoid directional control valve 6 controls the flow of oil, achieving forward and reverse switching in the hydraulic system. The stacked pressure reducing valve 7 regulates pressure in the hydraulic system to ensure stable operation. The stacked throttle valve 8 adjusts the hydraulic oil flow to meet varying operating conditions. An air cooler 9 is installed on one side of the top of the oil tank 1 to cool the hydraulic oil, maintaining the oil temperature within the appropriate operating range and improving the efficiency and stability of the hydraulic system. A hydraulic pressure gauge 10 is installed in the oil passage leading to the stacked pressure reducing valve 7 for real-time monitoring of system pressure, ensuring the system operates within a safe pressure range. An air filter 11 is installed on the top cover of the oil tank 1 to filter impurities from the air entering the tank 1, maintaining the purity of the hydraulic oil. The pipe joint 12 is connected to the valve block 5 for connecting to an external pipeline so that the various components in the hydraulic station can be connected into a complete working network. The design of the pipe joint 12 should ensure sealing and vibration resistance to prevent leakage.

[0025] Furthermore, the oil suction filter 13 is a key component newly added, located at the inlet of the oil suction pipe connected to the variable vane pump 4. This location ensures that the oil is pre-filtered by the oil suction filter 13 before being drawn into the pump, removing any larger impurities. The oil suction filter 13 is designed as a cylindrical structure with a filter screen at the bottom or side to capture impurities in the oil. The pore size of the filter screen is determined by the size of the impurities to be removed, and is generally fine enough to intercept most solid particles without affecting the flow of the oil. The oil suction filter 13 is fixed to the oil suction pipe via a flange or direct welding. This ensures a tight seal at the connection to prevent oil leakage. To ensure the continued effectiveness of the oil suction filter 13, a structure is designed that is easy to disassemble and clean. Operators can regularly remove the filter screen for cleaning or replacement to prevent oil suction difficulties caused by filter clogging. Considering that the hydraulic station may be used in different working environments, the design of the oil suction filter 13 also takes into account corrosion resistance and temperature resistance to adapt to different oil characteristics and environmental conditions.

[0026] It should be noted that the oil drain port 14 is a crucial auxiliary component of the hydraulic station. It is located at the lowest point on the sidewall of the fuel tank 1. This design allows for more complete draining of the hydraulic oil within the tank 1, reducing residual oil. The oil drain port 14 is secured to the sidewall of the fuel tank 1 by welding or threading. Ensure high-quality welding to prevent leakage. Threaded connections require the use of appropriate sealing materials, such as PTFE tape or sealant, to ensure a tight seal.

[0027] It is worth noting that the return oil baffle 15 is installed within the fuel tank 1, between the suction and return lines. Its primary function is to separate the suction and return areas, optimizing fluid circulation and promoting the separation and sedimentation of bubbles and impurities in the oil flow. The height of the return oil baffle 15 is designed to be no less than three-quarters of the oil level to ensure that the oil level on the suction side of the fuel tank 1 does not drop excessively during pumping, thereby preventing the hydraulic pump from absorbing air. The thickness of the return oil baffle 15 should be equal to or slightly greater than the thickness of the sidewalls to ensure structural strength and durability.

[0028] It should be noted that the magnet 16 is arranged at the bottom of the oil tank 1, and its main function is to adsorb metal impurities in the oil to prevent these impurities from flowing with the oil and causing wear or damage to hydraulic components such as pumps and valves. The magnet 16 should be made of permanent magnetic material with high magnetic strength to ensure that it can effectively adsorb metal particles in the hydraulic oil environment. The shape and size of the magnet 16 should be designed according to the volume of the oil tank 1 and the circulation characteristics of the oil to achieve the best adsorption effect. The magnet 16 can be fixed to the bottom of the oil tank 1 by a fixing clamp or bracket to ensure its stability in the oil and prevent it from moving or flipping due to the flow of oil. The surface of the magnet 16 should be treated with anti-corrosion to adapt to the chemical properties of the oil and extend its service life.

[0029] It should be noted that the inner wall of the fuel tank 1 requires anti-corrosion treatment to prevent direct contact between the oil and the metal surface, thereby avoiding metal corrosion and oil contamination. This anti-corrosion treatment utilizes an electrostatic spray coating process, which offers excellent adhesion and corrosion resistance, and is more environmentally friendly and durable than traditional paint and brittle paint. Before electrostatic spray coating, the welded areas on the inner wall of the fuel tank 1 must be thoroughly polished and pickled. This step is critical to ensuring the quality of electrostatic spray coating: polishing removes welding slag, burrs, and oxide layers from the welded areas, ensuring a smooth and clean surface and enhancing the adhesion of the spray coating. Pickling uses an acidic solution to remove rust and oxide films from the metal surface, further cleaning the metal surface and providing a good base for electrostatic spray coating. After pretreatment, the inner wall of the fuel tank 1 is electrostatically sprayed. The electrostatic spray coating process utilizes an electrostatic field to uniformly adsorb plastic powder particles onto the tank surface. High-temperature baking then melts, levels, and solidifies the powder, forming a uniform, dense coating. The selected plastic powder should possess excellent oil resistance, corrosion resistance, and mechanical strength to ensure the long-term stability and protective properties of the coating. The seal at the upper cover of fuel tank 1 is designed to prevent oil leakage and the ingress of external contaminants. A sealing strip is installed at the junction of the upper cover and the main body of fuel tank 1. This strip is typically made of oil-resistant rubber, which has excellent elasticity and oil resistance, ensuring a good seal.

[0030] It should be noted that the pipe joint 12 adopts a quick connector design, which allows the pipes to be quickly connected and disconnected without the use of tools, greatly improving the maintenance and operation efficiency of the hydraulic station. The quick connector can be a spiral type, a snap-on type or a push-pull type, etc. The appropriate type is selected according to the specific needs and operating environment of the hydraulic station. The quick connector usually consists of two parts: a plug and a socket. One end of the plug is connected to the pipe, and one end of the socket is fixed to the valve block 5 or other components. The design of the quick connector should ensure high sealing in the connected state, and can completely close the end of the pipe in the disconnected state to prevent oil leakage. The material of the quick connector should have good pressure resistance and corrosion resistance. Commonly used materials include stainless steel, aluminum alloy or engineering plastics. The sealing part of the joint is usually made of oil-resistant rubber or polytetrafluoroethylene material to ensure good sealing performance.

[0031] It is worth noting that to facilitate rapid draining, the oil drain port 14 is equipped with a quick-release valve. This design allows the operator to quickly open and close the valve, enabling rapid draining of the hydraulic oil. Quick-release valves can be manual or automatic, with the appropriate type selected based on the specific needs of the hydraulic station and the operating environment. A quick-release valve typically consists of a valve body, valve core, seals, and an operating handle. The operating handle should be designed to ensure easy operation and provide clear feedback during operation, indicating whether the valve is open or closed.

[0032] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A new type of hydraulic station, characterized in that: include: An oil tank (1), a motor (2), a liquid level gauge (3), a variable vane pump (4), a valve block (5), a superimposed electromagnetic reversing valve (6), a superimposed pressure reducing valve (7), a superimposed throttle valve (8), an air cooler (9), a hydraulic gauge (10), an air filter (11), and a pipe joint (12), wherein the oil tank (1) is fully enclosed, the motor (2) is arranged outside the oil tank (1) and is used to drive the variable vane pump (4) to rotate, and the liquid level gauge (3) is arranged in the oil tank (1) and is used to monitor the liquid level of the hydraulic oil in the oil tank (1). The oil passages of the superimposed electromagnetic reversing valve (6), the superimposed pressure reducing valve (7) and the superimposed throttle valve (8) are all integrated in the valve block (5); the air cooler (9) is installed on one side of the top of the oil tank (1); the hydraulic gauge (10) is installed on the oil passage leading to the superimposed pressure reducing valve (7); the air filter (11) is arranged on the upper cover of the oil tank (1); the pipe joint (12) is connected to the valve block (5) and is used to connect with the pipeline so that the various components in the hydraulic station can be connected into a complete working network.

2. The novel hydraulic station according to claim 1 is characterized in that: It also includes an oil suction filter (13), which is arranged at the inlet of the oil suction pipeline connected to the variable vane pump (4).

3. The novel hydraulic station according to claim 2 is characterized in that: It also includes an oil drain port (14), which is arranged at the lowest position of the side wall of the oil tank (1).

4. The novel hydraulic station according to claim 1, characterized in that: It also includes an oil return baffle (15), which is arranged in the oil tank (1) and located between the oil suction pipe and the oil return pipe.

5. The novel hydraulic station according to claim 1 is characterized in that: It also includes a magnet (16), which is arranged at the bottom of the oil tank (1).

6. The novel hydraulic station according to any one of claims 1 to 5, characterized in that: The interior of the oil tank (1) is treated with anti-corrosion treatment, and the upper cover is sealed with a sealing strip.

7. The novel hydraulic station according to claim 1, characterized in that: The pipe joint (12) adopts a quick joint design, which is convenient for quick connection and disconnection.

8. The novel hydraulic station according to claim 3 is characterized in that: The oil drain port (14) is provided with a quick release valve to facilitate the rapid discharge of hydraulic oil.

Images