Hydraulic station with stable structure

Abstract

The utility model relates to the technical field of hydraulic stations, in particular to a hydraulic station with a stable structure, which comprises an oil tank and a support frame, a shell is arranged on the left side of the top end wall of the support frame, an auxiliary oil tank is arranged on the right side of the top end wall of the support frame, and an oil guide pipe is arranged between the auxiliary oil tank and the oil tank for communication; a water removal device is arranged at the bottom in the shell, a vacuum pump is arranged on the left side of the inner bottom wall of the shell, and an air inlet pipe is arranged between the air inlet end of the vacuum pump and the water removal device for communication. The device can work in combination with the change condition of the pressure value of the oil tank, can flexibly meet the requirement for removing water in the oil tank under different working conditions and operation environments, and is suitable for various hydraulic stations used in humid and water-containing environments, such as small industrial hydraulic equipment or large engineering hydraulic systems. The functions of water removal and stable operation can be effectively exerted, and the method has a wide application prospect and good universality.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic station technology, specifically to a hydraulic station with a stable structure. Background Technology

[0002] The main body of the hydraulic power unit is a hydraulic pump driven by an electric motor, providing flow power and working with an oil tank to form a hydraulic oil supply and return system. In this supply and return relationship, a relief valve and a throttle valve are connected to the supply and return oil lines to achieve constant pressure relief and speed regulation. One inlet of the directional valve is connected to the outlet of the hydraulic pump via a pipeline, while the other inlets are connected to the inlet and return ends of the hydraulically powered actuators. A hydraulic oil cooler is connected to the return oil line. One inlet of the cooler is connected to at least one inlet of the directional valve via a pipeline, and its outlet is connected to the return oil line connected to the oil tank. This configuration effectively cools the returned hydraulic oil. To further improve… In terms of overall power output quality, the outlet of the hydraulic oil cooler is connected to the branch inlet of the hydraulic pump via a pipeline, forming a hydraulic differential circuit. After speed adjustment by the overflow valve and throttle valve, when the extension speed requirement of the hydraulically powered actuator is high, the mechanism extension unit can extend faster. On the oil tank, an accumulator is installed when energy storage is required. In addition, a pressure relief valve is installed on one side of the oil tank for normal pressure relief due to various reasons. A slag discharge valve is installed on the lower side of the oil tank for flushing out residues at the bottom of the oil tank when changing the hydraulic oil. Under normal conditions, the pressure relief valve and the slag discharge valve need to be closed. In addition, a pressure gauge is installed on the oil tank to display the pressure value in the tank in real time.

[0003] However, during long-term use in humid and water-containing environments, the hydraulic power unit is affected by the sealing properties of the hydraulically powered actuators and the hydraulic power unit itself. Water of varying amounts can seep into the oil tank. When water mixes with the hydraulic oil, it emulsifies, increasing its compressibility and causing errors in the actuator's movement, resulting in creeping and vibration, affecting the stability of the hydraulic system. Secondly, water easily combines with air to form bubbles. These bubbles, when broken under high pressure, generate strong vibrations and noise, significantly reducing the responsiveness of the actuators, causing sluggish action and affecting control accuracy. Furthermore, water damages the oil film on the actuators, leading to abrasion on sliding surfaces, accelerating wear, and causing water erosion of hydraulic components, resulting in pitting corrosion wear on metal surfaces. Most importantly, a high water content in the hydraulic oil leads to a decrease in the volumetric efficiency of the hydraulic system, increased energy loss, and reduced transmission efficiency. All of these factors contribute to instability in operation after water enters the oil tank.

[0004] However, apart from the basic maintenance operations mentioned above, since water in the oil tank tends to accumulate gradually, it is almost impossible to completely prevent water from mixing into the oil tank. In order to remove water from the oil tank more efficiently when the oil supply is not in full return mode, it is necessary to set up a hydraulic station with a stable structure that can combine the oil tank pressure value changes to more effectively remove water from the oil tank. Utility Model Content

[0005] To address the aforementioned problems, this invention presents a hydraulic station with a stable structure.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] A hydraulic station with a stable structure includes an oil tank and a support frame. The top wall of the support frame has a housing on the left side and an auxiliary oil tank on the right side of the top wall of the support frame. An oil guide pipe connects the auxiliary oil tank and the oil tank.

[0008] A water removal device is provided at the bottom of the housing. A vacuum pump is provided on the left side of the bottom wall of the housing. The air inlet of the vacuum pump is connected to the water removal device by an air inlet pipe. An oil pump is provided on the right side of the bottom wall of the housing. An oil inlet pipe is connected to the oil tank by an oil inlet pipe. An oil outlet pipe is connected to the water removal device by an oil outlet pipe. An oil pump is provided on the rear inner wall of the housing. An oil pump is connected to the water removal device by a connecting pipe by an oil pump in the rear inner wall. An oil outlet pipe is connected to the auxiliary oil tank by an oil outlet pipe by an oil outlet pipe.

[0009] Furthermore, the dewatering device includes a cylinder, the top of which is secured with a top cover by flange bolts. A motor is installed in the middle of the top wall of the top cover. A rotating rod is rotatably connected to the inner top wall of the top cover via a bearing, and the top of the rotating rod is fixedly connected to the output end of the motor via a coupling. Multiple blades are provided on the outer wall of the rotating rod, and a moisture detection sensor and a pressure sensor are provided on the inner wall of the cylinder.

[0010] Furthermore, the outer ring of the bearing is fixedly connected to the inner wall of the upper cover through the bearing seat, and the inner ring of the bearing is interference-fitted with the outer wall of the rotating rod.

[0011] Furthermore, the inner wall of the cylinder is wound with a resistance wire, and a temperature sensor is provided on the inner wall.

[0012] Furthermore, the air inlet pipe and oil outlet pipe are located at the top of the outer wall of the water removal device, and the connecting pipe is located at the bottom of the outer wall of the water removal device.

[0013] The beneficial effects of this utility model are:

[0014] By using a vacuum pump to evacuate the cylinder, the boiling point of water is effectively reduced, which promotes the rapid evaporation and extraction of water in the hydraulic oil. This greatly improves the efficiency of water removal from the oil tank and solves a series of problems such as hydraulic oil emulsification and increased compressibility caused by the accumulation of water. It ensures the stability and accuracy of the hydraulic system, avoids adverse phenomena such as action errors, creep, vibration and reduced responsiveness of actuators, and improves the overall control accuracy of the system.

[0015] The motor-driven rotating rod drives the blades to rotate and stir the hydraulic oil, which significantly accelerates the evaporation rate of water, further shortens the time cycle of water removal, improves the overall working efficiency of the equipment, enables the hydraulic station to return to the ideal working state more quickly, reduces downtime maintenance time caused by water problems, and enhances the operational reliability and continuity of the hydraulic station.

[0016] Effectively removing water from hydraulic oil can prevent water erosion of hydraulic components, as well as scratches and accelerated wear on sliding surfaces. This extends the service life of key hydraulic components and actuators such as hydraulic pumps, directional valves, relief valves, and throttle valves, and reduces equipment maintenance costs and replacement frequency. In the long run, it helps to improve the overall economic benefits and return on investment of hydraulic stations.

[0017] This device can operate in accordance with changes in oil tank pressure, flexibly responding to the need for removing moisture from the oil tank under different working conditions and operating environments. It is suitable for various hydraulic stations used in humid and water-containing environments. Whether it is a small industrial hydraulic equipment or a large engineering hydraulic system, it can effectively perform its functions of water removal and stable operation, and has broad application prospects and good versatility. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the shell structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the water removal device of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Oil tank, 2. Support frame, 3. Shell, 4. Auxiliary oil tank, 5. Water removal device, 6. Vacuum pump, 7. Air inlet pipe, 8. Oil pump one, 9. Oil inlet pipe, 10. Oil outlet pipe, 11. Oil pump two, 12. Connecting pipe, 13. Oil drain pipe, 14. Oil guide pipe, 15. Cylinder, 16. Top cover, 17. Motor, 18. Rotating rod, 19. Blade. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] See Figure 1-3 As shown, a hydraulic station with a stable structure includes an oil tank 1 and a support frame 2. The top wall of the support frame 2 has a housing 3 on the left side and an auxiliary oil tank 4 on the right side of the top wall of the support frame 2. An oil guide pipe 14 is provided between the auxiliary oil tank 4 and the oil tank 1 for communication.

[0026] A water removal device 5 is provided at the bottom of the inner shell 3. A vacuum pump 6 is provided on the left side of the bottom wall of the inner shell 3. An air inlet pipe 7 is provided between the air inlet end of the vacuum pump 6 and the water removal device 5. An oil pump 8 is provided on the right side of the bottom wall of the inner shell 3. An oil inlet pipe 9 is provided between the input end of the oil pump 8 and the oil tank 1. An oil outlet pipe 10 is provided between the output end of the oil pump 8 and the water removal device 5. An oil pump 11 is provided on the rear inner wall of the shell 3. A connecting pipe 12 is provided between the input end of the oil pump 11 and the water removal device 5. An oil drain pipe 13 is provided between the output end of the oil pump 11 and the auxiliary oil tank 4.

[0027] Furthermore, the dewatering device 5 includes a cylinder 15, with a top cover 16 fastened to the top of the cylinder 15 by flange bolts. A motor 17 is provided in the middle of the top wall of the top cover 16. A rotating rod 18 is rotatably connected to the inner top wall of the top cover 16 by bearings, and the top of the rotating rod 18 is fixedly connected to the output end of the motor 17 by a coupling. Multiple blades 19 are provided on the outer wall of the rotating rod 18, and a moisture detection sensor and a pressure sensor are provided on the inner wall of the cylinder 15.

[0028] Furthermore, the outer ring of the bearing is fixedly connected to the inner wall of the upper cover 16 through the bearing housing, and the inner ring of the bearing is interference-fitted to the outer wall of the rotating rod 18.

[0029] Furthermore, the inner wall of the cylinder 15 is wound with resistance wire, and a temperature sensor is provided on the inner wall.

[0030] Furthermore, the air inlet pipe 7 and the oil outlet pipe 10 are located at the top of the outer wall of the water removal device 5, and the connecting pipe 12 is located at the bottom of the outer wall of the water removal device 5.

[0031] For those skilled in the art, all electrical components and parts in this case are general standard parts or parts known to those skilled in the art. Their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods. All models are compatible with this solution and can operate normally. All electrical components in this case are connected to their compatible power supplies through wires. According to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the working principle below, and the electrical connection is completed by the sequential operation of each electrical component. The detailed connection method is a well-known technology in the art, and the electrical control will not be described further.

[0032] One specific application of this embodiment is:

[0033] In use, hydraulic oil is injected into the auxiliary oil tank 4. After the oil pump 8 is started, the hydraulic oil in the oil tank 1 is transported into the cylinder 15 through the oil inlet pipe 9 and the oil outlet pipe 10. The hydraulic oil in the auxiliary oil tank 4 is replenished into the oil tank 1 to balance the oil pressure in the oil tank 1. After the vacuum pump 6 is started, the cylinder 15 is evacuated to lower the boiling point of water and make the water in the hydraulic oil evaporate. The water is extracted by the vacuum pump 6. The motor 17 drives the rotating rod 18 to drive the blades 19 to rotate. The rotation of the blades 19 stirs the hydraulic oil to accelerate the evaporation of water. After the hydraulic oil is dehydrated, it is transported into the auxiliary oil tank 4 through the connecting pipe 12 and the drain pipe 13 after the oil pump 11 is started.

[0034] Of course, the above description is not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, alterations, additions or substitutions made by those skilled in the art within the scope of the present utility model should be protected by the present utility model.

Claims

1. A hydraulic station with a stabilizing structure, characterized in that: Including oil tank (1) and support frame (2), The left side of the top end wall of the support frame (2) is provided with a shell (3), and the right side of the top end wall of the support frame (2) is provided with a sub-oil tank (4), and a oil guide pipe (14) is arranged between the sub-oil tank (4) and the oil tank (1) to communicate. The inner bottom wall of the shell (3) is provided with a water removal device (5), the left side of the inner bottom wall of the shell (3) is provided with a vacuum pump (6), the air inlet end of the vacuum pump (6) and the water removal device (5) are connected through an air inlet pipe (7), the right side of the inner bottom wall of the shell (3) is provided with an oil pump one (8), the input end of the oil pump one (8) and the oil tank (1) are connected through an oil inlet pipe (9), the output end of the oil pump one (8) and the water removal device (5) are connected through an oil outlet pipe (10), the rear inner wall of the shell (3) is provided with an oil pump two (11), the input end of the oil pump two (11) and the water removal device (5) are connected through a connecting pipe (12), the output end of the oil pump two (11) and the sub-oil tank (4) are connected through an oil discharge pipe (13).

2. A hydraulic station with a stabilizing structure according to claim 1, characterized in that: The water removal device (5) comprises a cylinder (15), the top end of the cylinder (15) is provided with an upper cover (16) through flange bolt clamping, the middle of the top end wall of the upper cover (16) is provided with a motor (17), the inner top wall of the upper cover (16) is rotatably connected with a rotating rod (18) through a bearing, and the top end of the rotating rod (18) is fixedly connected with the output end of the motor (17) through a shaft coupling, a plurality of blades (19) are arranged on the outer wall of the rotating rod (18), and a moisture detection sensor and a pressure sensor are arranged on the inner wall of the cylinder (15).

3. A hydraulic station with a stabilizing structure according to claim 2, characterized in that: The outer ring of the bearing is fixedly connected with the inner wall of the upper cover (16) through a bearing seat, and the inner ring of the bearing is connected with the outer wall of the rotating rod (18) in interference fit.

4. A hydraulic station with a stabilizing structure according to claim 2, characterized in that: The inner wall of the cylinder (15) is wound with a resistance wire, and a temperature sensor is arranged on the inner wall.

5. The hydraulic station with a stabilizing structure according to claim 1, characterized in that: The air inlet pipe (7) and the oil outlet pipe (10) are arranged on the top of the outer wall of the water removal device (5), and the connecting pipe (12) is arranged on the bottom of the outer wall of the water removal device (5).

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