Double-loop hydraulic power station

Abstract

The invention discloses a double-loop hydraulic power station, relates to the technical field of hydraulic power stations, and aims to solve the problem that when all backflow hydraulic oil is introduced from a bottom layer, the backflow hydraulic oil greatly impacts the hydraulic oil on the bottom layer and affects impurity precipitation in a precipitation area. In the filtering process when the backflow cooled hydraulic oil enters the oil tank, a large amount of hydraulic oil is led out from the filtering holes of the conical filtering pipe and led into the upper layer area of the oil tank through the empty groove, and a small amount of hydraulic oil containing impurities is led out from the bottom end of the conical filtering pipe and led into the bottom layer area of the oil tank through the inclined guide plate. The backflow hydraulic oil is shunted, so that the hydraulic oil without impurities can directly enter the upper layer area of the hydraulic oil in the oil tank, the shunted hydraulic oil has small impact force on the hydraulic oil at the bottom layer, and blockage and abrasion caused by the fact that the impurities at the bottom layer are driven to precipitate and fluctuate and enter an oil way during oil absorption are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic power stations, in particular to a dual-circuit hydraulic power station. Background Art

[0002] At present, the hydraulic power station is a device that uses the hydraulic principle to convert mechanical energy into hydraulic energy and provide power for various hydraulic equipment. The hydraulic power station drives the hydraulic pump through a prime mover such as a motor or an engine. The hydraulic pump sucks the hydraulic oil in the oil tank and pressurizes it, so that the hydraulic oil obtains a certain pressure energy, and then transports the pressurized hydraulic oil to various hydraulic actuators (such as hydraulic cylinders, hydraulic motors, etc.) through hydraulic pipelines such as oil pipes. The hydraulic actuators then convert the hydraulic energy into mechanical energy, thereby driving the external equipment to complete the corresponding actions, such as extending and retracting the piston rod of the hydraulic cylinder to lift heavy objects, or allowing the hydraulic motor to drive the rotating equipment to rotate, etc.; In the existing hydraulic power station oil tank, the hydraulic oil after return cooling is usually passed into the bottom layer of the oil tank to precipitate impurities. However, when all the hydraulic oil is passed from the bottom layer, it causes a greater impact on the hydraulic oil at the bottom layer, affecting the precipitation of impurities in the precipitation area. Summary of the invention

[0003] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dual-circuit hydraulic power station, comprising: An oil tank, a liquid level gauge is installed on the outside of the oil tank, and an oil circuit assembly and a motor are fixedly installed on the top of the oil tank; A cooling assembly, which cools the return hydraulic oil and is installed on the top of the oil tank. The oil inlet of the cooling assembly is a double joint, and the cooling assembly is connected to the double return oil pipeline through a double interface; A suction filter mechanism, which is used to filter the derived hydraulic oil, and the suction filter mechanism is installed inside the oil tank; A flow dividing mechanism, which is used to filter and guide the hydraulic oil after the return cooling; Wherein, the diversion mechanism comprises an oil return filter box, the top of the outer side of the oil return filter box is evenly provided with empty grooves, and an outer cover plate is fixedly installed on the outer side of the oil return filter box, and the outer cover plate cooperates with the empty groove. When the hydraulic oil without impurities is discharged, the hydraulic oil is conducted from bottom to top through the blocking of the outer cover plate, and it is avoided that the hydraulic oil is diverted to the surroundings or downwards, causing the fluctuation of the bottom impurity precipitation area to increase, and at the same time, it is avoided that the hydraulic oil that has just returned reaches the oil suction position again after the impact to the surroundings, so that the hydraulic oil in the oil tank flows evenly to the oil pipeline, and the outer cover plate is located on the outer side of the empty groove and there is a gap with the outer side of the oil return filter box, the interior of the oil return filter box is symmetrically provided with pipe grooves, and the top of the pipe grooves are fixedly installed with fixed covers, and the top of the fixed covers is fixedly installed with return oil conduits, and the bottom of the fixed covers is fixedly installed with conical filter tubes, and the conical filter tubes cooperate with the empty grooves and the inclined grooves, so that the hydraulic oil after the return cooling is filtered when entering the oil tank, so that a large amount of hydraulic oil The hydraulic oil is guided outward from the filter holes of the conical filter tube and introduced into the upper area of ​​the oil tank through the empty groove, while a small amount of hydraulic oil containing impurities is guided out from the bottom end of the conical filter tube and introduced into the bottom area of ​​the oil tank through the inclined guide plate. While completing the filtration, the refluxed hydraulic oil is diverted so that the hydraulic oil without impurities can directly enter the upper area of ​​the hydraulic oil in the oil tank. Compared with directly introducing the return oil hydraulic oil into the bottom layer of the oil tank, the impurities are quickly precipitated at the bottom. The hydraulic oil after diversion has a smaller impact on the bottom hydraulic oil, avoiding the precipitation fluctuation of the impurities at the bottom layer, causing the impurities to enter the oil path during oil absorption and cause blockage and wear. The inner diameter and outer diameter of the conical filter tube are uniformly reduced from top to bottom, and the outer side of the conical filter tube is uniformly provided with filter holes, the bottom of the return oil filter box is provided with an inclined groove, and an inclined guide plate is fixedly installed at the inclined groove of the return oil filter box, and the top of the inclined guide plate is uniformly provided with grooves, and the top of the return oil conduit is connected to the oil outlet of the cooling component. Preferably, the oil circuit assembly includes a hydraulic pump group and a hydraulic valve group, the hydraulic valve group is fixedly installed on the top of the oil tank, the hydraulic pump group is composed of two hydraulic pumps and is connected to the output end of the motor through a shaft rod, the oil inlet of the hydraulic pump group is fixedly installed with an oil suction pipe, the end of the oil suction pipe away from the hydraulic pump group passes through the oil tank and extends to the inside thereof, the oil outlet of the hydraulic pump group is fixedly installed with an oil outlet pipe, the hydraulic pump group is connected to the oil inlet of the hydraulic valve group through the oil outlet pipe, and the oil outlet of the hydraulic valve group is installed with an oil inlet interface.

[0004] Preferably, the oil tank includes a box body, a cover plate is fixedly installed on the top of the box body, a partition plate is fixedly installed on the inner wall of the box body, the suction filter mechanism and the diverter mechanism are located at the diagonal inside of the box body, and the suction filter mechanism is located above the partition plate, the side of the partition plate close to the return oil filter box is fixedly connected to the outer side of the return oil filter box, and the partition plate is located between the empty groove and the inclined groove of the return oil filter box, and an arc-shaped partition plate is fixedly installed on the top of the partition plate, and the diverter mechanism and the suction filter mechanism are separated into two areas by the arc-shaped partition plate, so as to reduce the influence between the oil suction flow and the oil return flow, and avoid that when the hydraulic oil in the oil tank circulates, the hydraulic oil that has just returned is not sucked into the oil circuit again, resulting in that the hydraulic oil that has just returned has no time to transfer heat to the oil tank The hydraulic oil is transferred, resulting in the hydraulic oil temperature being too high and entering the oil pipeline, causing damage to the oil pipeline. The arc-shaped partition is located between the suction and filtering mechanism and the diversion mechanism, and both ends of the outer side of the arc-shaped partition are provided with grooves, and an arc guide plate is fixedly installed on the bottom of the partition plate. A through hole is provided on the top of the partition plate. The sedimentation area and the oil suction area are separated by the partition plate, and the two areas are connected by the through hole at the same time, ensuring that the hydraulic oil circulates and flows into the oil pipeline, while reducing the impact on the sedimentation area during oil suction, reducing the fluctuation of the sedimentation area due to oil suction, and avoiding impurities in the sedimentation area from approaching the oil suction position. The through hole is located on the side of the arc-shaped partition plate close to the suction and filtering mechanism, and the through hole is located on the side of the arc guide plate close to the diversion mechanism.

[0005] Preferably, the suction filter mechanism includes an oil suction bin, the top of the outer side of the oil suction bin is evenly provided with through grooves, and a connecting plate is fixedly installed on the top of the oil suction bin, a connecting pipe is fixedly installed on the inner wall of the connecting plate, the top of the connecting pipe is connected to the oil suction pipe, and an inclined baffle is fixedly installed on the bottom of the inner wall of the oil suction bin close to the through groove, the inclined baffle is inclined from bottom to top toward the center position of the oil suction bin, and the inclined baffle is made of elastic material, and an inclined slot plate is fixedly installed on the top of the inner wall of the oil suction bin, and the inclined slot plate cooperates with the inclined baffle to screen out impurities through the screen when sucking oil, and the screened impurities impact the inclined baffle upward under the flow of hydraulic oil, so that the inclined baffle is deformed by force to open the gap between the inclined slot plate and the inclined slot plate. , and the impurities are discharged. At the same time, after the impact disappears, the deformation rebounds and closes the gap again to prevent impurities from entering the screen position again, ensuring the smoothness of oil absorption and preventing impurities from accumulating in the screen area and causing blockage. The inclined slot plate is inclined from top to bottom to the side away from the inclined baffle plate, and the bottom end of the connecting pipe is fixedly connected to the inner wall of the inclined slot plate, and a frame groove is provided at the bottom of the outer side of the inclined slot plate, and a screen is fixedly installed at the frame groove of the inclined slot plate, and a hole tube is fixedly installed at the bottom of the oil suction bin, and the hole tube is symmetrically installed along the center position of the axis of the oil suction bin, and an inner retaining ring is fixedly installed at the bottom of the inner wall of the hole tube, and there is a gap between the inner retaining ring and the inner wall around the hole tube, and oil suction holes are evenly provided on the outside of the hole tube.

[0006] The present invention provides a dual-circuit hydraulic power station. It has the following beneficial effects: 1. The dual-circuit hydraulic power station uses a conical filter tube in conjunction with an empty slot and an inclined slot, so that during the filtering process of the hydraulic oil after the return cooling enters the oil tank, a large amount of hydraulic oil is discharged outward from the filter holes of the conical filter tube and introduced into the upper area of ​​the oil tank through the empty slot, while a small amount of hydraulic oil containing impurities is discharged from the bottom end of the conical filter tube and introduced into the bottom area of ​​the oil tank through the inclined guide plate. While completing the filtration, the return hydraulic oil is diverted so that the hydraulic oil without impurities can directly enter the upper area of ​​the hydraulic oil in the oil tank. Compared with directly introducing the return hydraulic oil into the bottom of the oil tank, the impurities are quickly precipitated at the bottom. The hydraulic oil after diversion has less impact on the bottom hydraulic oil, avoiding the precipitation and fluctuation of the impurities at the bottom, causing the impurities to enter the oil circuit during oil absorption and cause blockage and wear.

[0007] Second, the dual-circuit hydraulic power station cooperates with the empty slot through the outer cover plate. When the hydraulic oil without impurities is discharged, the hydraulic oil is conducted from bottom to top through the blocking of the outer cover plate, avoiding diversion to the surroundings or downwards, causing greater fluctuations in the bottom impurity precipitation area, and at the same time avoiding the hydraulic oil that has just returned after impacting the surroundings to reach the oil suction position again, so that the hydraulic oil in the oil tank flows evenly to the oil pipeline.

[0008] 3. The dual-circuit hydraulic power station separates the diversion mechanism and the suction and filtration mechanism into two areas through an arc-shaped partition, thereby reducing the impact between the suction flow and the return flow, and preventing the hydraulic oil that has just returned from the oil tank from being sucked into the oil circuit again when the hydraulic oil circulates in the oil tank, resulting in the hydraulic oil that has just returned having no time to transfer heat to the hydraulic oil in the oil tank, causing the hydraulic oil to enter the oil pipeline at an excessively high temperature, thereby causing damage to the oil pipeline.

[0009] Fourth, the dual-circuit hydraulic power station separates the sedimentation area from the oil suction area through a partition plate, and the two areas are connected through a through hole to ensure that the hydraulic oil circulates into the oil pipeline while reducing the impact of oil suction on the sedimentation area, reducing the fluctuation of the sedimentation area caused by oil suction, and avoiding impurities in the sedimentation area from approaching the oil suction position.

[0010] 5. The dual-circuit hydraulic power station, through the cooperation of the inclined slot plate and the inclined baffle, can screen out impurities through the screen when absorbing oil. The impurities after screening will impact the inclined baffle upward under the flow of hydraulic oil, so that the inclined baffle will be deformed by force, open the gap between it and the inclined slot plate, and export the impurities. At the same time, after the impact disappears, the deformation rebounds and closes the gap again, preventing impurities from entering the screen position again, ensuring the smoothness of oil absorption, and preventing impurities from accumulating in the screen area and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the external structure of a dual-circuit hydraulic power station of the present invention; Figure 2 This is a side view of the structure of a dual-circuit hydraulic power station of the present invention; Figure 3 This is a structural dissection diagram of a dual-circuit hydraulic power station of the present invention; Figure 4 It is a schematic diagram of the structure of the diversion mechanism of the present invention; Figure 5 It is a partial structural anatomical diagram of the diversion mechanism of the present invention; Figure 6 This is a dissected diagram of the oil tank structure of the present invention; Figure 7 It is a bottom view of the partial structure of the oil tank of the present invention; Figure 8 It is a schematic diagram of the structure of the suction filtration mechanism of the present invention; Fig. 9 It is a structural dissection diagram of the suction filtration mechanism of the present invention.

[0012] In the figure: 1. oil tank; 2. suction filter mechanism; 3. diversion mechanism; 4. oil circuit assembly; 5. cooling assembly; 6. motor; 7. liquid level gauge; 11. box body; 12. cover plate; 13. arc partition plate; 14. groove; 15. partition plate; 16. arc guide plate; 17. through hole; 21. oil suction bin; 22. connecting plate; 23. hole tube; 24. inner retaining ring; 25. oblique baffle plate; 26. oblique groove plate; 27. connecting pipe; 28. screen; 31. return oil filter box; 32. outer cover plate; 33. return oil duct; 34. fixed cover; 35. empty groove; 36. conical filter tube; 37. oblique guide plate; 41. hydraulic pump group; 42. oil suction pipe; 43. oil outlet pipe; 44. hydraulic valve group; 45. oil inlet interface. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0014] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: a dual-circuit hydraulic power station, comprising: An oil tank 1, a liquid level gauge 7 is installed on the outside of the oil tank 1, and an oil circuit assembly 4 and a motor 6 are fixedly installed on the top of the oil tank 1; The cooling assembly 5 cools the return hydraulic oil and is installed on the top of the oil tank 1. The oil inlet of the cooling assembly 5 is a double joint, and the cooling assembly 5 is connected to the double return oil pipeline through the double interface; A suction filter mechanism 2, which is used to filter the derived hydraulic oil, and the suction filter mechanism 2 is installed inside the oil tank 1; A flow dividing mechanism 3, which is used to filter and guide the hydraulic oil after the return cooling; The diversion mechanism 3 includes a return oil filter box 31, and the top of the outer side of the return oil filter box 31 is evenly provided with empty grooves 35, and the outer side of the return oil filter box 31 is fixedly installed with an outer cover plate 32, the outer cover plate 32 is located on the outer side of the empty grooves 35 and has a gap with the outer side of the return oil filter box 31, the inner side of the return oil filter box 31 is symmetrically provided with pipe grooves, and the top of the pipe grooves is fixedly installed with a fixed cover 34, the hydraulic oil of the double circuit is connected to the oil inlet position of the cooling component 5 through the return oil pipeline, so that the hydraulic oil after the work is completed enters the cooling component 5 for cooling, and the temperature of the hydraulic oil is reduced, and then the hydraulic oil is introduced into the return oil conduit 33 from the oil outlet of the cooling component 5, and the hydraulic oil enters the fixed cover 34 through the guidance of the return oil conduit 33, and under the action of pressure and gravity, the hydraulic oil impacts downward into the conical filter tube 36, the top of the fixed cover 34 is fixedly installed with the return oil conduit 33, and the bottom of the fixed cover 34 is fixedly installed with the conical filter tube. 36, the inner diameter and outer diameter of the conical filter tube 36 decrease evenly from top to bottom, and the outer side of the conical filter tube 36 is evenly provided with filter holes, the bottom of the return oil filter box 31 is provided with an inclined groove, and an inclined guide plate 37 is fixedly installed at the inclined groove of the return oil filter box 31. In the process of the hydraulic oil impacting downward, a large amount of hydraulic oil passes through the filter holes on the surface of the conical filter tube 36 to reach the circular groove of the return oil filter box 31, so that a large amount of hydraulic oil is guided out of the return oil filter box 31 through the empty groove 35, and in the process of guiding out, the outer cover plate 32 cooperates with the empty groove, so that the hydraulic oil without impurities is guided out from the upper position inside the oil tank 1, and a small amount of hydraulic oil containing impurities and debris is guided out from the bottom end of the conical filter tube 36, impacting the inclined guide plate 37, and a small amount of hydraulic oil and impurities are guided out from the bottom layer of the oil tank 1 through the inclined surface of the inclined guide plate 37 and the groove at the top. The top of the inclined guide plate 37 is evenly provided with grooves, and the top of the return oil conduit 33 is connected with the oil outlet of the cooling component 5. The oil circuit assembly 4 includes a hydraulic pump group 41 and a hydraulic valve group 44. The hydraulic valve group 44 is fixedly installed on the top of the oil tank 1. The hydraulic pump group 41 is composed of two hydraulic pumps and is connected to the output end of the motor 6 through a shaft. The oil inlet of the hydraulic pump group 41 is fixedly installed with an oil suction pipe 42. The output end of the motor 6 drives the hydraulic pump group 41 to operate, so that the hydraulic pump group 41 is connected to the suction filter mechanism 2 through the oil suction pipe 42 to extract the hydraulic oil in the oil tank 1, and the mechanical energy of the motor is converted into the pressure energy of the hydraulic oil, so that the pressurized hydraulic oil passes through the oil outlet pipe 43 enters the hydraulic valve group 44, the end of the oil suction pipe 42 away from the hydraulic pump group 41 passes through the oil tank 1 and extends to the inside thereof, the oil outlet of the hydraulic pump group 41 is fixedly installed with an oil outlet pipe 43, the hydraulic pump group 41 is connected to the oil inlet of the hydraulic valve group 44 through the oil outlet pipe 43, the flow of the hydraulic oil is controlled by the hydraulic valve group 44, the pressurized hydraulic oil is introduced into the oil inlet pipeline of the hydraulic equipment to be driven connected to the oil inlet interface 45, so as to drive the hydraulic equipment to be driven to run, and the oil outlet of the hydraulic valve group 44 is installed with an oil inlet interface 45.

[0015] The second embodiment is based on the first embodiment. Figure 6 to Figure 7 As shown, the oil tank 1 includes a box body 11, a cover plate 12 is fixedly installed on the top of the box body 11, a partition plate 15 is fixedly installed on the inner wall of the box body 11, the suction filter mechanism 2 and the diverter mechanism 3 are located at the diagonal positions inside the box body 11, and the empty slot 35 of the return oil filter box 31 and the material discharged from the chute are separated into an upper and lower area by the partition plate 15, the hydraulic oil without impurities discharged from the empty slot 35 is introduced into the upper area of ​​the partition plate 15, and the hydraulic oil containing impurities discharged from the chute position by the inclined guide plate 37 is introduced into the lower area of ​​the partition plate 15, so that the impurities are concentrated at the bottom of the partition plate 15, and the suction filter mechanism 2 is located above the partition plate 15, and the side of the partition plate 15 close to the return oil filter box 31 is fixedly connected to the outer side of the return oil filter box 31, and the partition plate 15 is located between the empty slot 35 and the chute of the return oil filter box 31, and an arc partition is fixedly installed on the top of the partition plate 15. Plate 13, the arc partition 13 is located between the suction filter mechanism 2 and the diversion mechanism 3, and both ends of the outer side of the arc partition 13 are provided with grooves 14, and the bottom of the partition plate 15 is fixedly installed with an arc guide plate 16, and the hydraulic oil above the partition plate 15 is divided into two areas by the arc partition 13, so that the suction filter mechanism 2 and the diversion mechanism 3 are in different areas, and at the same time, the hydraulic oil in the two areas is connected through the grooves 14 on both sides of the arc partition 13, and the hydraulic oil containing impurities below the partition plate 15 moves along the arc guide plate 16 toward the through hole 17 under the impact pressure derived, so that the impurities accumulate at the bottom of the partition plate 15, and the hydraulic oil can be introduced into the top of the partition plate 15 along the through hole 17, and the top of the partition plate 15 is provided with a through hole 17, and the through hole 17 is located on the side of the arc partition 13 close to the suction filter mechanism 2, and the through hole 17 is located on the side of the arc guide plate 16 close to the diversion mechanism 3.

[0016] The third embodiment is based on the first and second embodiments. Figures 8 to 9 As shown, the suction filter mechanism 2 includes an oil suction bin 21, the top of the outer side of the oil suction bin 21 is evenly provided with through grooves, and a connecting plate 22 is fixedly installed on the top of the oil suction bin 21, and a connecting pipe 27 is fixedly installed on the inner wall of the connecting plate 22. The top of the connecting pipe 27 is connected to the oil suction pipe 42, and an inclined baffle 25 is fixedly installed on the bottom of the inner wall of the oil suction bin 21 near the through groove. The inclined baffle 25 is inclined from bottom to top toward the center of the oil suction bin 21, and is connected to the oil suction pipe 42 through the connecting pipe 27, so that the suction force of the oil suction pipe 42 is transmitted through the connecting pipe 27. To the inside of the oil suction bin 21, suction occurs in the frame groove area of ​​the inclined groove plate 26 inside the oil suction bin 21, so that the hydraulic oil in the frame groove area is driven by the suction, passes through the screen 28 into the connecting pipe 27, the area between the oil suction bin 21 and the inclined groove plate 26, and flows upward into the connecting pipe 27 and is introduced into the oil suction pipe 42. The inclined baffle plate 25 is made of elastic material, and the inclined groove plate 26 is fixedly installed on the top of the inner wall of the oil suction bin 21. The inclined groove plate 26 is inclined from top to bottom toward the side away from the inclined baffle plate 25, and the bottom end of the connecting pipe 27 is fixedly connected to the inner wall of the inclined groove plate 26.

[0017] A frame groove is provided at the bottom of the outer side of the chute plate 26, and a screen 28 is fixedly installed at the frame groove of the chute plate 26. A hole tube 23 is fixedly installed at the bottom of the oil suction bin 21. During the oil suction process in the screen area, since the top of the inclined baffle plate 25 is in contact with the outer side of the chute plate 26, the hydraulic oil enters the oil suction bin 21 through the oil suction hole, and the hydraulic oil is filtered through the screen 28. During the oil suction process, impurities that cannot pass through the screen 28 are driven by the flowing hydraulic oil to continue to surge upward and impact the inclined baffle plate 25, and the elastic deformation of the inclined baffle plate 25 under the impact , so that a gap appears between the inclined baffle plate 25 and the inclined slot plate 26, so that impurities are guided out from the gap position through the through slot. At the same time, when the hydraulic oil is guided at the oil suction hole of the orifice tube 23, the inner baffle ring 24 cooperates with the orifice tube 23 to limit the distance of the hydraulic oil's inward impact during oil suction, and conduct the entering hydraulic oil upward. The orifice tube 23 is symmetrically installed along the center position of the axis of the oil suction bin 21, and the inner baffle ring 24 is fixedly installed at the bottom of the inner wall of the orifice tube 23. There is a gap between the inner baffle ring 24 and the inner wall around the orifice tube 23, and the outer side of the orifice tube 23 is evenly provided with oil suction holes.

[0018] When in use, the oil inlet pipeline of the hydraulic equipment to be driven is connected to the oil circuit component 4, and the oil return pipeline is connected to the oil inlet of the cooling component 5. By starting the motor 6, the motor 6 drives the oil circuit component 4 to run, and the hydraulic oil in the oil tank 1 passes through the oil circuit component 4 driven by the motor 6, and is extracted from the oil tank 1 by the suction filter mechanism 2, and the driving force of the motor 6 is converted into the pressure of the hydraulic oil, which is introduced into the hydraulic equipment to be driven through the oil inlet pipeline to make the hydraulic equipment move. At the same time, the hydraulic oil after completing the driving work is introduced into the cooling component 5 through the oil return pipeline to cool the hydraulic oil after work. The cooled hydraulic oil is introduced into the oil tank 1 through the diversion mechanism 3 to circulate.

[0019] When the hydraulic oil is extracted through the oil circuit assembly 4, the hydraulic pump group 41 is driven to operate through the output end of the motor 6, so that the hydraulic pump group 41 is connected to the suction filter mechanism 2 through the oil suction pipe 42, the hydraulic oil in the oil tank 1 is extracted, and the mechanical energy of the motor is converted into the pressure energy of the hydraulic oil, so that the pressurized hydraulic oil enters the hydraulic valve group 44 through the oil outlet pipe 43, and the flow of the hydraulic oil is controlled by the hydraulic valve group 44, so that the pressurized hydraulic oil is introduced into the oil inlet pipeline of the hydraulic equipment to be driven connected to the oil inlet interface 45, so as to drive the hydraulic equipment to be driven to operate.

[0020] When the sucked hydraulic oil is filtered by the suction filter mechanism 2, the connecting pipe 27 is connected to the oil suction pipe 42, so that the suction force of the oil suction pipe 42 is transmitted to the inside of the oil suction bin 21 through the connecting pipe 27, so that suction occurs in the frame groove area of ​​the chute plate 26 inside the oil suction bin 21, so that the hydraulic oil in the frame groove area is driven by the suction force, passes through the screen 28 into the connecting pipe 27, the area between the oil suction bin 21 and the chute plate 26, and flows upward into the connecting pipe 27 and is introduced into the oil suction pipe 42. In the process of oil suction in the screen area, since the top of the inclined baffle 25 is in contact with the outer side of the chute plate 26, The hydraulic oil enters the oil suction bin 21 from the oil suction hole and is filtered through the screen 28. During the oil suction process, impurities that cannot pass through the screen 28 are driven by the flowing hydraulic oil to continue to surge upward and impact the inclined baffle 25. The elastic deformation of the inclined baffle 25 under the impact causes a gap to appear between the inclined baffle 25 and the inclined slot plate 26, so that the impurities are guided out from the gap position through the through groove. At the same time, when the hydraulic oil is guided at the oil suction hole of the orifice tube 23, the inner retaining ring 24 cooperates with the orifice tube 23 to limit the inward impact distance of the hydraulic oil during oil suction, and conduct the entering hydraulic oil upward.

[0021] In the diversion mechanism 3, the hydraulic oil of the double circuit is connected to the oil inlet position of the cooling component 5 through the oil return pipe, so that the hydraulic oil after the work is completed enters the cooling component 5 for cooling and lowering the temperature of the hydraulic oil. Then, the hydraulic oil is introduced into the oil return conduit 33 from the oil outlet of the cooling component 5. Through the guidance of the oil return conduit 33, the hydraulic oil enters the fixed cover 34. Under the action of pressure and gravity, the hydraulic oil impacts downward into the conical filter tube 36. In the process of the hydraulic oil impacting downward, a large amount of hydraulic oil passes through the filter holes on the surface of the conical filter tube 36 to reach the circular groove of the return oil filter box 31, so that a large amount of hydraulic oil is guided out of the return oil filter box 31 through the empty groove 35. In the process of guiding out, the outer cover plate 32 cooperates with the empty groove, so that the hydraulic oil without impurities is guided out from the upper position inside the oil tank 1, and a small amount of hydraulic oil containing impurities and debris is guided out from the bottom end of the conical filter tube 36, impacting the inclined guide plate 37. The inclined surface of the inclined guide plate 37 cooperates with the groove at the top, so that a small amount of hydraulic oil and impurities are guided out from the bottom of the oil tank 1.

[0022] In the oil tank 1, the empty slot 35 of the return oil filter box 31 and the material discharged from the inclined slot are separated into an upper and lower area by the partition plate 15. The hydraulic oil without impurities discharged from the empty slot 35 is introduced into the upper area of ​​the partition plate 15, and the hydraulic oil containing impurities discharged from the inclined slot position by the inclined guide plate 37 is introduced into the lower area of ​​the partition plate 15, so that the impurities are concentrated at the bottom of the partition plate 15. The hydraulic oil above the partition plate 15 is divided into two areas by the arc partition plate 13, so that the suction filter mechanism 2 and the diversion mechanism 3 are in different areas. At the same time, the hydraulic oil in the two areas is connected through the grooves 14 on both sides of the arc partition plate 13. The hydraulic oil containing impurities below the partition plate 15 moves along the arc guide plate 16 toward the through hole 17 under the impact pressure discharged, so that the impurities are accumulated at the bottom of the partition plate 15, and the hydraulic oil can be introduced into the upper part of the partition plate 15 along the through hole 17.

[0023] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A dual-circuit hydraulic power station, characterized in that: include: An oil tank (1), wherein a liquid level meter (7) is installed on the outside of the oil tank (1), and an oil circuit assembly (4) and a motor (6) are fixedly installed on the top of the oil tank (1); A cooling assembly (5), the cooling assembly (5) cools the return hydraulic oil, and the cooling assembly (5) is installed on the top of the oil tank (1), the oil inlet position of the cooling assembly (5) is a double joint, and the cooling assembly (5) is connected to the double return oil pipeline through the double interface; A suction filter mechanism (2), the suction filter mechanism (2) being used to filter the discharged hydraulic oil, and the suction filter mechanism (2) being installed inside the oil tank (1); A flow dividing mechanism (3), the flow dividing mechanism (3) being used to filter and guide the hydraulic oil after the return cooling; The diversion mechanism (3) comprises an oil return filter box (31), the top of the outer side of the oil return filter box (31) is evenly provided with hollow grooves (35), and an outer cover plate (32) is fixedly mounted on the outer side of the oil return filter box (31), the outer cover plate (32) is located on the outer side of the hollow grooves (35) and has a gap with the outer side of the oil return filter box (31), the inside of the oil return filter box (31) is symmetrically provided with pipe grooves, and the tops of the pipe grooves are all fixedly mounted with fixed covers (34), the tops of the fixed covers (34) are fixedly mounted with oil return conduits (33), and the bottoms of the fixed covers (34) are all fixedly mounted with conical filter tubes (36), the inner diameter and outer diameter of the conical filter tubes (36) are evenly reduced from top to bottom, and filter holes are evenly mounted on the outer side of the conical filter tubes (36).

2. A dual-circuit hydraulic power station according to claim 1, characterized in that: The bottom of the oil return filter box (31) is provided with an inclined groove, and an inclined guide plate (37) is fixedly installed at the inclined groove of the oil return filter box (31), and grooves are evenly formed on the top of the inclined guide plate (37). The top end of the oil return conduit (33) is connected to the oil outlet of the cooling assembly (5).

3. A dual-circuit hydraulic power station according to claim 1, characterized in that: The oil circuit assembly (4) comprises a hydraulic pump group (41) and a hydraulic valve group (44); the hydraulic valve group (44) is fixedly mounted on the top of the oil tank (1); the hydraulic pump group (41) is composed of two hydraulic pumps and is connected to the output end of the motor (6) via a shaft.

4. A dual-circuit hydraulic power station according to claim 3, characterized in that: The oil inlet of the hydraulic pump group (41) is fixedly mounted with an oil suction pipe (42), one end of the oil suction pipe (42) away from the hydraulic pump group (41) passes through the oil tank (1) and extends into the interior thereof, the oil outlet of the hydraulic pump group (41) is fixedly mounted with an oil outlet pipe (43), the hydraulic pump group (41) is connected to the oil inlet of the hydraulic valve group (44) via the oil outlet pipe (43), and the oil outlet of the hydraulic valve group (44) is mounted with an oil inlet interface (45).

5. A dual-circuit hydraulic power station according to claim 1, characterized in that: The oil tank (1) comprises a box body (11), a cover plate (12) is fixedly mounted on the top of the box body (11), a partition plate (15) is fixedly mounted on the inner wall of the box body (11), the suction filter mechanism (2) and the flow diverter mechanism (3) are located at opposite corners inside the box body (11), and the suction filter mechanism (2) is located above the partition plate (15).

6. A dual-circuit hydraulic power station according to claim 5, characterized in that: The side of the partition plate (15) close to the return oil filter box (31) is fixedly connected to the outer side of the return oil filter box (31), and the partition plate (15) is located between the empty slot (35) and the inclined slot of the return oil filter box (31). An arc-shaped partition plate (13) is fixedly mounted on the top of the partition plate (15), and the arc-shaped partition plate (13) is located between the suction filter mechanism (2) and the diversion mechanism (3), and both ends of the outer side of the arc-shaped partition plate (13) are provided with grooves (14).

7. A dual-circuit hydraulic power station according to claim 6, characterized in that: An arc guide plate (16) is fixedly mounted on the bottom of the partition plate (15), and a through hole (17) is provided on the top of the partition plate (15). The through hole (17) is located on a side of the arc partition plate (13) close to the suction filter mechanism (2), and the through hole (17) is located on a side of the arc guide plate (16) close to the diversion mechanism (3).

8. A dual-circuit hydraulic power station according to claim 1, characterized in that: The suction filter mechanism (2) comprises an oil suction bin (21), the top of the outer side of the oil suction bin (21) being evenly provided with through grooves, a connecting plate (22) being fixedly mounted on the top of the oil suction bin (21), a connecting pipe (27) being fixedly mounted on the inner wall of the connecting plate (22), and the top end of the connecting pipe (27) being connected to the oil suction pipe (42).

9. A dual-circuit hydraulic power station according to claim 8, characterized in that: An inclined baffle (25) is fixedly mounted on the bottom of the inner wall of the oil suction bin (21) close to the through groove, the inclined baffle (25) is inclined from bottom to top toward the center of the oil suction bin (21), and the inclined baffle (25) is made of elastic material. An inclined slot plate (26) is fixedly mounted on the top of the inner wall of the oil suction bin (21), the inclined slot plate (26) is inclined from top to bottom toward a side away from the inclined baffle (25), and the bottom end of the connecting pipe (27) is fixedly connected to the inner wall of the inclined slot plate (26).

10. A dual-circuit hydraulic power station according to claim 9, characterized in that: A frame groove is formed at the bottom of the outer side of the inclined groove plate (26), and a screen (28) is fixedly installed at the frame groove of the inclined groove plate (26). A hole tube (23) is fixedly installed at the bottom of the oil suction bin (21). The hole tube (23) is symmetrically installed along the center position of the axis of the oil suction bin (21), and an inner retaining ring (24) is fixedly installed at the bottom of the inner wall of the hole tube (23). There is a gap between the inner retaining ring (24) and the inner wall around the hole tube (23), and oil suction holes are evenly formed on the outer side of the hole tube (23).

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