Oil cleaning and filtering integrated device for hydraulic system of coal mining equipment

Abstract

The oil cleaning and filtering integrated device of the hydraulic system of the coal mining equipment comprises a barrel body, a first bushing plate is fixedly connected to the position, close to the bottom, in the barrel body, a second bushing plate is arranged at the bottom of the first bushing plate, and the second bushing plate is rotationally connected with the first bushing plate through a bearing. An oil inlet pipe and a feeding pipe are fixedly connected to the top of the barrel body, a filter screen is arranged below the oil inlet pipe, an oil outlet pipe is fixedly connected to the bottom of the barrel body, a filter screen is arranged on the oil outlet pipe, and a valve is arranged on the outer side of the oil outlet pipe. According to the hydraulic oil filter, hydraulic oil used for a long time can be cleaned and filtered, so that the hydraulic oil can be reused, and resources are saved.

Description

Technical Field

[0001] This utility model relates to the field of oil cleaning technology, and in particular to an integrated oil cleaning and filtration device for hydraulic systems of coal mining equipment. Background Technology

[0002] The hydraulic system of coal mine equipment is a system that uses oil as the working medium to transmit energy and control mechanical movements through oil pressure. It realizes the automatic movement and adjustment of the tail equipment through hydraulic transmission and automatic control technology.

[0003] When hydraulic equipment is damaged, such as by coolant leakage, oil seal damage, wear, or condensation of air moisture, water can enter the hydraulic oil, and particulate matter may also enter the hydraulic oil, making it dirty and easily causing malfunctions in the hydraulic system.

[0004] For faulty equipment, it cannot be discarded directly and needs to be repaired. During repair, the hydraulic oil inside needs to be separated and filtered. Existing technologies have some separation devices. In order to better separate impurities in hydraulic oil and improve the technical level of industry development, this application proposes a new cleaning and filtration structure that is different from the existing technology. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an integrated oil cleaning and filtration device for hydraulic systems in coal mine equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hydraulic system oil cleaning and filtration integrated device for coal mining equipment includes a barrel body. A first strainer plate is fixedly connected to the bottom of the barrel body. A second strainer plate is provided at the bottom of the first strainer plate and is rotatably connected to the first strainer plate via a bearing. An oil inlet pipe and a feeding pipe are fixedly connected to the top of the barrel body. A filter screen is provided below the oil inlet pipe. An oil outlet pipe is fixedly connected to the bottom of the barrel body. A filter screen is provided on the oil outlet pipe. A valve is provided on the outside of the oil outlet pipe. A stirring assembly for agitating the oil is provided above the first strainer plate in the barrel body. A first bevel gear is fixedly connected to the bottom of the second strainer plate. A rotating hole is opened on one side of the barrel body below the second strainer plate. A rotating shaft is rotatably connected in the rotating hole. A second bevel gear is keyed to one end of the rotating shaft inside the barrel body, and the second bevel gear meshes with the first bevel gear. A handwheel is fixedly connected to the other end of the rotating shaft outside the barrel body. A locking assembly is provided on one side of the handwheel to fix the rotating shaft.

[0008] As a further embodiment of this utility model, the stirring assembly includes a motor, which is fixedly connected to the top outside of the barrel. One end of the motor output shaft passes through the barrel and is connected to a connecting shaft via a coupling. A stirring frame is fixedly connected to the outside of the connecting shaft.

[0009] As a further embodiment of this utility model, a scraper that fits into the inside of the barrel and the second strainer is fixedly connected to the outside of the connecting shaft.

[0010] As a further embodiment of this utility model, the locking assembly includes a threaded hole, which is located on one side of the handwheel, and a threaded rod for locking the handwheel is threadedly connected to the threaded hole.

[0011] As a further improvement of this utility model, one side of the handwheel is provided with angle markings distributed in a ring.

[0012] As a further embodiment of this invention, a pointer for indicating angle markings is fixedly connected to the outer side of the barrel, directly above the handwheel.

[0013] As a further improvement of this utility model, a support frame is fixedly connected to the outer side of the barrel near the bottom.

[0014] As a further embodiment of this utility model, a sealing gasket that fits against the first leak plate is fixedly connected to the upper surface of the second leak plate, and a through hole corresponding to the leak hole of the second leak plate is integrally formed on the upper surface of the sealing gasket.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Hydraulic oil is added to the tank through the combined use of the first and second perforating plates. Then, an adsorption pack is added to the tank. The adsorption pack adsorbs impurities and moisture in the hydraulic oil. After adsorption is completed, the second perforating plate is rotated so that the holes on the second perforating plate are aligned with the holes on the first perforating plate. At this time, the treated hydraulic oil will flow downward through the holes on the first and second perforating plates, thereby cleaning and filtering the hydraulic oil after long-term use, allowing the hydraulic oil to be reused and saving resources.

[0017] 2. By setting up the stirring component, the hydraulic oil and adsorption pack in the tank can be stirred, thereby causing the oil and water to separate into layers, which improves the cleaning and adsorption effect of the adsorption pack on the hydraulic oil.

[0018] 3. By setting up the scraper, the scraper can scrape off and clean the hydraulic oil adhering to the barrel, thereby avoiding the waste of hydraulic oil. At the same time, the scraper can scrape and move the impurities on the first drain plate, preventing impurities and adsorption packs from clogging the holes on the first drain plate, thus improving the effectiveness of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment proposed in this utility model;

[0020] Figure 2 This is a cross-sectional structural schematic diagram of an integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment proposed in this utility model;

[0021] Figure 3 This is an enlarged structural diagram of part A of the integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment proposed in this utility model;

[0022] Figure 4 This is a partial cross-sectional view of an integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment proposed in this utility model.

[0023] In the diagram: 1. Barrel body; 2. Support frame; 3. Oil outlet pipe; 4. Motor; 5. Oil inlet pipe; 6. Feeding pipe; 7. Connecting shaft; 8. Scraper frame; 9. Stirring frame; 10. First strainer plate; 11. Sealing gasket; 12. Second strainer plate; 13. Rotating shaft; 14. First bevel gear; 15. Handwheel; 16. Threaded rod; 17. Threaded hole; 18. Angle mark; 19. Pointer; 20. Second bevel gear. 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 of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-4 A hydraulic system oil cleaning and filtration integrated device for coal mining equipment includes a barrel 1. A first drain plate 10 is fixed to the bottom of the barrel 1 by bolts. A second drain plate 12 is provided at the bottom of the first drain plate 10. The second drain plate 12 is rotatably connected to the first drain plate 10 by bearings. The drain holes of the first drain plate 10 and the drain holes of the second drain plate 12 can be completely aligned when rotated.

[0026] The top of the barrel 1 is fixedly connected to an oil inlet pipe 5 and a feeding pipe 6. A filter screen is installed below the oil inlet pipe 5 to filter particulate impurities in the hydraulic oil. The bottom of the barrel 1 is connected to an oil outlet pipe 3, which is equipped with a filter screen. A valve is provided on the outside of the oil outlet pipe 3 for easy addition and discharge. The oil inlet pipe 5 and the oil outlet pipe 3 are detachable for easy cleaning of the filter screen.

[0027] Hydraulic oil is added into the barrel 1 through the oil inlet pipe 5. At this time, because the leakage holes of the first leakage plate 10 and the second leakage plate 12 are misaligned and completely sealed, the first leakage plate 10 will block the hydraulic oil.

[0028] Inside the barrel 1, above the first strainer 10, there is a stirring assembly for agitating the oil. The stirring assembly includes a motor 4, which is fixed to the outside of the top of the barrel 1 by bolts. One end of the output shaft of the motor 4 passes through the barrel 1 and is connected to a connecting shaft 7 by a coupling. A stirring frame 9 is welded to the outside of the connecting shaft 7.

[0029] At this time, the adsorption pack is added into the barrel 1 through the feeding pipe 6, so that the adsorption pack enters the hydraulic oil, thereby adsorbing the impurities and moisture in the hydraulic oil. In this embodiment, the adsorption pack can be a nano-coated napkin pack, a bamboo fiber non-stick oil cloth pack, or other items that can absorb water and adsorb impurities but not oil.

[0030] Then, start motor 4, which will drive the connecting shaft 7 to rotate. The connecting shaft 7 will drive the stirring frame 9 to rotate. The stirring frame 9 will agitate the hydraulic oil and the adsorption pack, thereby producing a centrifugal effect, so that the water is distributed in the upper layer, allowing the adsorption pack to better adsorb the water in the hydraulic oil.

[0031] In this embodiment, the bottom of the second leak plate 12 is fixed with a first bevel gear 14 by bolts. A rotating hole is opened on one side of the barrel 1 below the second leak plate 12. A rotating shaft 13 is rotatably connected in the rotating hole. A second bevel gear 20 is keyed to one end of the rotating shaft 13 inside the barrel 1, and the second bevel gear 20 meshes with the first bevel gear 14.

[0032] A handwheel 15 is fixed to one end of the rotating shaft 13 outside the barrel body 1 by bolts. A locking component is provided on one side of the handwheel 15 to fix the rotating shaft 13.

[0033] After adsorption is complete, the handwheel 15 rotates the shaft 13, which in turn drives the second bevel gear 20 to rotate. The second bevel gear 20, through meshing with the first bevel gear 14, drives the first bevel gear 14 to rotate. The first bevel gear 14 then drives the second drain plate 12 to rotate. Once the second drain plate 12 is rotated until its own drain hole is aligned with the drain hole on the first drain plate 10, the hydraulic oil will flow through the drain holes on the first drain plate 10 and the second drain plate 12 to the bottom of the barrel 1, allowing the hydraulic oil to enter the bottom and be discharged through the oil outlet pipe 3. This allows the hydraulic oil to be reused, saving resources.

[0034] In this utility model, a scraper 8 that fits against the inside of the barrel 1 and the second leak plate 12 is fixed to the outside of the connecting shaft 7 by bolts. When the connecting shaft 7 rotates, it will drive the scraper 8 to rotate. The scraper 8 can scrape off and clean the hydraulic oil adhering to the barrel 1, thereby avoiding the waste of hydraulic oil. At the same time, the scraper 8 can scrape off the impurities on the first leak plate 10, preventing the small amount of impurities that pass through the filter screen from clogging the holes on the first leak plate 10, thus improving the effectiveness of the device.

[0035] In this solution, the locking assembly includes a threaded hole 17, which is located on one side of the handwheel 15. The threaded hole 17 is internally threaded with a threaded rod 16 for locking the handwheel 15, and the threaded rod 16 can contact the barrel 1. After the second drain plate 12 has rotated, the threaded rod 16 is tightened so that the threaded rod 16 makes close contact with the barrel 1 to lock and fix the handwheel 15, thereby preventing the rotating shaft 13 from rotating and preventing the second drain plate 12 from rotating.

[0036] It should be noted that one side of the handwheel 15 is provided with angle markings 18 arranged in a ring. On the outside of one side of the barrel 1, a pointer 19 for indicating the angle markings 18 is welded directly above the handwheel 15. During the rotation of the handwheel 15, the pointer 19 and the angle markings 18 can be used to rotate the handwheel 15 at an accurate angle, thereby enabling the second leak plate 12 to rotate precisely. When some marks on the pointer 19 and the angle markings 18 are aligned, it means that the leak hole of the first leak plate 10 is aligned with the leak hole of the second leak plate 12. Other marks are completely sealed, thus facilitating operation.

[0037] A support frame 2 is fixed to the outer side of the barrel 1 near the bottom by bolts. A sealing gasket 11 that fits against the first leak plate 10 is bonded to the upper surface of the second leak plate 12. The upper surface of the sealing gasket 11 has an integrally formed through hole corresponding to the leakage hole of the second leak plate 12. The sealing gasket 11 can seal the gap between the first leak plate 10 and the second leak plate 12, thereby preventing hydraulic oil from leaking from the gap between the first leak plate 10 and the second leak plate 12.

[0038] Working principle: The holes of the first leak plate 10 and the second leak plate 12 are misaligned beforehand, and the threaded rod 16 is locked. Then, hydraulic oil is added into the barrel 1 through the oil inlet pipe 5. At this time, the filter screen performs preliminary impurity filtration, and the hydraulic oil stops above the first leak plate 10. Then, the adsorption pack is added into the barrel 1 through the feeding pipe 6, so that the adsorption pack enters the hydraulic oil and adsorbs the impurities and water in the hydraulic oil. At the same time, the motor 4 is started, and the motor 4 will drive the stirring frame 9 to rotate, so that the oil and water are separated into layers, with water rising to the upper layer, which makes it easier for the adsorption pack to float on the oil and adsorb the water.

[0039] After adsorption is complete, screw the threaded rod 16 and rotate the shaft 13 by handwheel 15. Rotate the second filter plate 12 until its own leakage hole is aligned with the leakage hole on the first filter plate 10. Then tighten the threaded rod 16 so that the shaft 13 cannot rotate. At this time, since the leakage holes of the first filter plate 10 and the second filter plate 12 are aligned, the hydraulic oil will flow through the leakage holes on the first filter plate 10 and the second filter plate 12 to the bottom of the barrel 1. After the impurities are filtered for the second time by the filter screen, the hydraulic oil can be discharged through the oil outlet pipe 3, so that the hydraulic oil can be reused and resources are saved.

[0040] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic system oil cleaning and filtration integrated device for coal mine equipment, comprising a tank (1), characterized in that, A first drain plate (10) is fixedly connected to the bottom of the barrel (1). A second drain plate (12) is provided at the bottom of the first drain plate (10), and the second drain plate (12) is rotatably connected to the first drain plate (10) through a bearing. An oil inlet pipe (5) and a feeding pipe (6) are fixedly connected to the top of the barrel (1). A filter screen is provided below the oil inlet pipe (5). An oil outlet pipe (3) is fixedly connected to the bottom of the barrel (1). A filter screen is provided on the oil outlet pipe (3). A valve is provided on the outside of the oil outlet pipe (3). An oil leveling device is provided inside the barrel (1) above the first drain plate (10). The stirring assembly for agitating the liquid has a first bevel gear (14) fixedly connected to the bottom of the second sluice plate (12). A rotating hole is provided on one side of the barrel (1) below the second sluice plate (12). A rotating shaft (13) is rotatably connected in the rotating hole. A second bevel gear (20) is keyed to one end of the rotating shaft (13) inside the barrel (1), and the second bevel gear (20) meshes with the first bevel gear (14). A handwheel (15) is fixedly connected to one end of the rotating shaft (13) outside the barrel (1). A locking assembly is provided on one side of the handwheel (15) to fix the rotating shaft (13).

2. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 1, characterized in that, The stirring assembly includes a motor (4), which is fixedly connected to the top outside of the barrel (1). One end of the output shaft of the motor (4) passes through the barrel (1) and is connected to a connecting shaft (7) via a coupling. A stirring rack (9) is fixedly connected to the outside of the connecting shaft (7).

3. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 2, characterized in that, The outer side of the connecting shaft (7) is fixedly connected to a scraper (8) that fits against the inside of the barrel (1) and the second drain plate (12).

4. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 1, characterized in that, The locking assembly includes a threaded hole (17) which is located on one side of the handwheel (15). A threaded rod (16) for locking the handwheel (15) is threadedly connected to the threaded hole (17).

5. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 4, characterized in that, The handwheel (15) has angle markings (18) arranged in a ring on one side.

6. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 5, characterized in that, A pointer (19) for indicating angle markings (18) is fixedly connected to the outside of one side of the barrel (1) directly above the handwheel (15).

7. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 1, characterized in that, A support frame (2) is fixedly connected to the outer side of the barrel (1) near the bottom.

8. The integrated oil cleaning and filtration device for a hydraulic system of coal mine equipment according to claim 1, characterized in that, The upper surface of the second leak plate (12) is fixedly connected with a sealing gasket (11) that fits against the first leak plate (10). The upper surface of the sealing gasket (11) is integrally formed with a through hole corresponding to the leak hole of the second leak plate (12).

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