Hydraulic system

Abstract

The utility model discloses a hydraulic system which comprises an oil tank and a control piece, a partition plate is arranged in the oil tank and divides the oil tank into two parts to form an oil return cavity and an oil suction cavity, a channel is reserved between the bottom end of the partition plate and the bottom face in the oil tank, a filter plate is arranged at the position of the channel, a plurality of oil return holes are formed in the top of the oil return cavity, and an inclined plate is arranged below the oil return holes. The control piece comprises a plurality of high-pressure valves and a submersible pump, on one hand, through the arrangement of an inclined plate, the buffering force of hydraulic oil from the oil return hole can be reduced, and then the number of generated bubbles is reduced; on the other hand, through the arrangement of the partition plate, bubbles can be blocked by the partition plate; and thirdly, the filter plate can pierce the bubbles, so that the three aspects are progressive layer by layer, hydraulic oil mingled with the bubbles is effectively prevented from entering the submersible pump, and the service life of each component is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic systems, in particular to a hydraulic system. Background Art

[0002] In mechanical manufacturing, a large number of various hydraulic systems are used. Among them, oil presses have been widely used because hydraulic oil has a relatively suitable viscosity, good sealing effect, and lubricating effect. For example, the authorization announcement number CN208330879U is a utility model patent for a hydraulic system, which includes an oil tank, a main motor submersible pump group, an auxiliary motor submersible pump group, a high-pressure valve block 1, a high-pressure valve block 2, a booster and a hydraulic oil cooling system. Hydraulic oil is provided in the oil tank; the high-pressure valve block 1, the high-pressure valve block 2, and the booster are respectively connected to the external hydraulic cylinder. On the one hand, the high-pressure valve block 1 and the high-pressure valve block 2 adopt an integrated structure to facilitate fault detection and maintenance; on the other hand, the hydraulic oil cooling is equipped with a hydraulic oil cooling system, and the oil temperature can be controlled at the required temperature.

[0003] However, the hydraulic oil circulates continuously during operation. When the hydraulic oil returns to the oil tank, a large number of bubbles will be generated. The hydraulic oil mixed with bubbles will be directly sucked away by the submersible pump group, which will cause unstable operation of components such as pipelines, high-pressure valve blocks or submersible pump groups (such as increased noise, etc.), thereby reducing the service life of various components. Utility Model Content

[0004] The purpose of the utility model is to overcome the above technical deficiencies and propose a hydraulic system to solve the technical problem in the prior art that hydraulic oil mixed with bubbles will reduce the service life of various components.

[0005] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a hydraulic system, comprising:

[0007] An oil tank, wherein a partition is provided in the oil tank so as to divide the oil tank into two parts to form an oil return chamber and an oil suction chamber, a channel is left between the bottom end of the partition and the bottom surface of the oil tank, a filter plate is provided in the channel, a plurality of oil return holes are opened at the top of the oil return chamber, and an inclined plate is provided below the oil return holes; and

[0008] The control component includes a plurality of high-pressure valves and a submersible pump. The submersible pump is located in the oil suction chamber and is connected to the oil inlet end of each high-pressure valve. The oil outlet end of each high-pressure valve is connected to each oil return hole one by one.

[0009] In some embodiments, the control component further includes a plurality of electric actuators, each of the electric actuators being electrically connected to each of the high-pressure valves.

[0010] In some embodiments, the partition is provided with a vent hole, and the vent hole is close to the top of the partition.

[0011] In some embodiments, the filter plate is located in the oil suction cavity and is mounted on the bottom end of the partition.

[0012] In some embodiments, a mounting hole is provided on the top of the oil suction chamber, and the motor end of the submersible pump is fixedly connected to the mounting hole.

[0013] In some embodiments, the oil tank is in the shape of an inverted trapezoid.

[0014] In some embodiments, an oil filling port is provided on the top of the oil tank.

[0015] In some embodiments, the inner bottom surface of the oil tank is inclined.

[0016] In some embodiments, an oil drain port is provided at the bottom of one side of the oil tank.

[0017] In some embodiments, a base is mounted on the bottom of the fuel tank.

[0018] Compared with the prior art, the hydraulic system provided by the present invention, on the one hand, can reduce the buffering force of the hydraulic oil coming out of the oil return hole through the setting of the inclined plate, thereby reducing the number of bubbles generated; on the second hand, through the setting of the partition, the bubbles can be blocked by the partition and cannot enter the oil suction chamber; on the third hand, the filter plate can puncture the bubbles, further preventing the bubbles from entering the oil suction chamber. Thus, the above three aspects are progressive, effectively preventing hydraulic oil mixed with bubbles from entering the submersible pump, thereby increasing the service life of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a hydraulic system provided by an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure of the fuel tank;

[0021] Figure 3 yes Figure 2 A top view of

[0022] Figure 4 yes Figure 3 Middle AA section view.

[0023] Explanation of the accompanying reference numerals: 1. Oil tank; 11. Partition; 111. Air vent; 12. Oil return chamber; 121. Oil return hole; 13. Oil suction chamber; 131. Mounting hole; 14. Channel; 15. Filter plate; 16. Inclined plate; 17. Oil filling port; 18. Oil drain port; 19. Base; 2. Control component; 21. High-pressure valve; 22. Submersible pump; 23. Electric actuator. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] In order to solve the technical problem that hydraulic oil mixed with bubbles will reduce the service life of various components, the utility model provides a hydraulic system that can prevent hydraulic oil mixed with bubbles from entering a submersible pump.

[0026] It should be noted that the hydraulic system described in the present invention is used for but not limited to mechanical manufacturing, etc. For the sake of convenience, in the present invention, only a hydraulic system applied to mechanical manufacturing is used as an example for explanation. The principle of applying a hydraulic system to other types of equipment is essentially the same as that applied to mechanical manufacturing, and will not be described in detail here.

[0027] See also Figure 1 - Figure 4 ,in Figure 1 This is a structural schematic diagram of a hydraulic system in an embodiment of the present invention. A hydraulic system includes an oil tank 1 and a control component 2. A partition 11 is provided in the oil tank 1, dividing the oil tank 1 into two parts to form an oil return chamber 12 and an oil suction chamber 13. A channel 14 is left between the bottom end of the partition 11 and the bottom surface of the oil tank 1. A filter plate 15 is provided at the channel 14. A plurality of oil return holes 121 are opened at the top of the oil return chamber 12, and an inclined plate 16 is provided below the oil return hole 121. The control component 2 includes a plurality of high-pressure valves 21 and a submersible pump 22. The submersible pump 22 is located in the oil suction chamber 13 and is connected to the oil inlet end of each high-pressure valve 21. The oil outlet end of each high-pressure valve 21 is connected one by one to each oil return hole 121.

[0028] In this embodiment, on the one hand, the arrangement of the inclined plate 16 can reduce the buffering force of the hydraulic oil coming out of the oil return hole 121, thereby reducing the number of bubbles generated; on the other hand, the arrangement of the partition 11 can block the bubbles from entering the oil suction chamber 13; on the third hand, the filter plate 15 can puncture the bubbles, further preventing them from entering the oil suction chamber 13. Thus, the above three aspects are progressive, effectively preventing the hydraulic oil mixed with bubbles from entering the submersible pump 22, thereby increasing the service life of each component.

[0029] Furthermore, the provision of the submersible pump 22 effectively reduces oil leakage in the system.

[0030] Furthermore, the provision of multiple sets of high-pressure valves 21, on the one hand, enables the system to act on multiple terminal components simultaneously; on the other hand, when a high-pressure valve 21 in the system fails, any other high-pressure valve 21 can continue to operate the system as a backup without waiting for another hydraulic system to be transported to the site, thereby effectively improving the on-site construction efficiency.

[0031] In one embodiment, see Figure 1 The control component 2 further includes a plurality of electric actuators 23 , each electric actuator 23 being electrically connected to each high-pressure valve 21 .

[0032] In this embodiment, the setting of the electric actuator 23 makes it convenient for the staff to control the high-pressure valve 21 from a distance through the PLC computer control terminal. On the one hand, there is no need for the staff to manually operate the high-pressure valve 21. On the other hand, there is no need for the staff to be in a high-pressure environment, thereby avoiding safety accidents.

[0033] In one embodiment, see Figure 2 - Figure 4 The partition 11 is provided with a vent hole 111 , and the vent hole 111 is close to the top of the partition 11 .

[0034] In this embodiment, the function of the vent hole 111 is to balance the air pressure in the oil return chamber 12 and the oil suction chamber 13 .

[0035] In one embodiment, see Figure 2 - Figure 4 The filter plate 15 is located in the oil suction chamber 13 and is installed at the bottom end of the partition plate 11.

[0036] In this embodiment, the filter plate 15 can effectively prevent impurities in the oil return chamber 12 from entering the submersible pump 22. At the same time, the filter plate 15 is suspended in the oil suction chamber 13 and has no contact with the bottom surface of the oil tank 1, making it convenient for staff to clean the bottom surface of the oil tank 1.

[0037] In one embodiment, see Figure 1 - Figure 4 A mounting hole 131 is provided at the top of the oil suction chamber 13 , and the motor end of the submersible pump 22 is fixedly connected to the mounting hole 131 .

[0038] In this embodiment, the submersible end of the submersible pump 22 is submerged in the hydraulic oil, and the motor end of the submersible pump 22 is mounted on the outer wall of the oil tank 1 through the mounting hole 131 to facilitate connection with the outside world.

[0039] In one embodiment, see Figure 1, the fuel tank 1 is in an inverted trapezoidal shape.

[0040] In this embodiment, the fuel tank 1 is in an inverted trapezoidal shape, which effectively increases the storage capacity of the fuel tank 1.

[0041] In one embodiment, see Figure 1 - Figure 2 An oil filling port 17 is provided on the top of the oil tank 1 .

[0042] In this embodiment, the function of the oil filling port 17 is to inject new hydraulic oil, and the oil filling port 17 is installed with a protective cover. When there is no need to replace the hydraulic oil, the protective cover blocks the oil filling port 17 to prevent impurities outside the oil tank 1 from entering the oil tank 1 through the oil filling port 17.

[0043] In one embodiment, see Figure 4 , the inner bottom surface of the fuel tank 1 is in an inclined state.

[0044] In one embodiment, see Figure 1 - Figure 4 An oil drain port 18 is provided at the bottom of one side of the oil tank 1 .

[0045] In this embodiment, the oil drain port 18 is located on the lower side of the bottom of the oil tank 1. The inclined bottom surface of the oil tank 1 facilitates automatic discharge of the hydraulic oil from the oil drain port 18 when the hydraulic oil is replaced, and the oil drain port 18 is installed with a sealing cover. When the hydraulic oil does not need to be replaced, the sealing cover blocks the oil drain port 18 to prevent the hydraulic oil from leaking from the oil drain port 18.

[0046] In one embodiment, see Figure 1 A base 19 is installed at the bottom of the fuel tank 1.

[0047] In this embodiment, the base 19 serves to raise the height of the oil drain port 18 so that when the hydraulic oil needs to be replaced, the recovery box can be placed below the oil drain port 18 to receive the hydraulic oil.

[0048] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0049] The submersible pump 22 is started, and any electric actuator 23 controls its corresponding high-pressure valve 21. The hydraulic oil operates normally and continuously flows in and out of the oil tank 1. When the hydraulic oil returns to the oil tank 1, it passes through the return oil hole 121, flushes onto the inclined plate 16, and then flows into the return oil chamber 12, and then passes through the channel 14 and the filter plate 15 and enters the oil suction chamber 13, so that the submersible pump 22 can repeatedly absorb. Through the setting of the inclined plate 16, the buffering force of the hydraulic oil coming out of the return oil hole 121 can be reduced, thereby reducing the number of bubbles generated; through the setting of the partition 11, the bubbles can be blocked by the partition 11 and cannot enter the oil suction chamber 13; the filter plate 15 can puncture the bubbles, further preventing the bubbles from entering the oil suction chamber 13. In summary, the hydraulic system effectively prevents the hydraulic oil mixed with bubbles from entering the submersible pump 22 through the above three aspects, thereby improving the service life of each component.

[0050] The above specific implementation methods of the utility model do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A hydraulic system, characterized in that: include: An oil tank, wherein a partition is provided in the oil tank so as to divide the oil tank into two parts to form an oil return chamber and an oil suction chamber, a channel is left between the bottom end of the partition and the bottom surface of the oil tank, a filter plate is provided in the channel, a plurality of oil return holes are opened at the top of the oil return chamber, and an inclined plate is provided below the oil return holes; and The control component includes a plurality of high-pressure valves and a submersible pump. The submersible pump is located in the oil suction chamber and is connected to the oil inlet end of each high-pressure valve. The oil outlet end of each high-pressure valve is connected to each oil return hole one by one.

2. A hydraulic system according to claim 1, characterized in that: The control component further includes a plurality of electric actuators, each of which is electrically connected to each of the high-pressure valves.

3. A hydraulic system according to claim 1, characterized in that: The partition is provided with a vent hole, and the vent hole is close to the top end of the partition.

4. A hydraulic system according to claim 1, characterized in that: The filter plate is located in the oil suction cavity and is installed at the bottom end of the partition plate.

5. A hydraulic system according to claim 1, characterized in that: A mounting hole is provided on the top of the oil suction chamber, and the motor end of the submersible pump is fixedly connected to the mounting hole.

6. A hydraulic system according to claim 1, characterized in that: The oil tank is in an inverted trapezoidal shape.

7. A hydraulic system according to claim 1, characterized in that: An oil filling port is provided on the top of the oil tank.

8. A hydraulic system according to claim 1, characterized in that: The inner bottom surface of the oil tank is in an inclined state.

9. A hydraulic system according to claim 1, characterized in that: An oil drain port is provided at the bottom of one side of the oil tank.

10. A hydraulic system according to claim 1, characterized in that: A base is installed at the bottom of the oil tank.

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