External structure of oil pump of hydraulic station

Abstract

The utility model discloses a hydraulic station oil pump external structure which comprises a frame body, an oil pumping assembly and an oil tank, the oil pumping assembly is installed on the frame body, the oil tank is installed on one side of the frame body, a transfer pipe is fixed to the bottom of the side wall of the oil tank, and the tail end of the transfer pipe is connected with one end of a bottom pipe. Outer filtering filler is arranged between the outer side of the inner barrel and the inner wall of the outer barrel, a partition plate is fixedly installed at the bottom of the inner wall of the outer barrel, the bottom of the outer wall of the inner barrel is fixedly connected with the middle of the partition plate, an extraction pipe is installed at the top of one side of the outer barrel in a penetrating mode, an extraction pump is installed on the extraction pipe, and the tail end of the extraction pump is connected with the tail end of a backflow pipe; the return pipe is mounted at the top of the side wall of the oil tank. According to the external structure of the oil pump of the hydraulic station, the novel structural design is adopted, hydraulic oil in the oil tank is efficiently subjected to impurity removal through the external oil filtering mechanism, meanwhile, the whole external oil filtering mechanism and the internal filtering mechanism can be conveniently disassembled and decomposed, and overhauling, maintaining, carrying and transferring are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulics, in particular to an external oil pump structure of a hydraulic station. Background Art

[0002] A hydraulic station is a transmission device that converts liquid pressure energy into mechanical energy or other forms of energy. It is widely used in various fields. The working principle of the hydraulic station is that the motor drives the oil pump to rotate. The pump draws oil from the oil tank and then pumps oil, converting mechanical energy into the pressure energy of hydraulic oil. Subsequently, the hydraulic oil is adjusted in direction, pressure, and flow by the hydraulic valve through an integrated block or valve combination, and is transmitted to the oil cylinder or oil motor of the hydraulic machinery through an external pipeline, thereby controlling the change of direction, force, and speed of the hydraulic motor, and driving various hydraulic machinery to do work.

[0003] Existing external hydraulic station pump structures, such as those described in Chinese Utility Model Patent Publication No. CN208935072U, titled "An External Hydraulic Station Pump Structure," place the oil tank outside the pump for easier maintenance. However, the tank lacks an oil filter, preventing the removal of impurities that may enter the hydraulic fluid during transportation through the hydraulic mechanism and pipelines, impacting the proper operation of the hydraulic mechanism and pipelines. To address these issues, an innovative design based on the existing external hydraulic station pump structure is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide an external oil pump structure for a hydraulic station to solve the problem in the above background technology that the existing external oil pump structure of the hydraulic station does not have an oil filter mechanism on the oil tank, and is unable to filter out impurities mixed into the hydraulic oil during the hydraulic mechanism and pipeline transportation process, thereby affecting the normal operation of the hydraulic mechanism and the normal transportation of the pipeline.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an external structure of an oil pump in a hydraulic station, comprising a frame, an oil pumping assembly and an oil tank, an oil pumping assembly being mounted on the frame, an oil tank being mounted on one side of the frame, a transfer pipe being fixed to the bottom of the side wall of the oil tank, the end of the transfer pipe being connected to one end of a bottom pipe, a suction pump being mounted on the bottom pipe, the bottom pipe passing through the bottom of one side of an outer cylinder, the other end of the bottom pipe being connected through the bottom end of an inner cylinder, the top end of the inner cylinder being connected and fixed to the top of the inner wall of the outer cylinder, and an oil overflow opening being provided on the top of the side wall of the inner cylinder A mesh tube is installed through the hole opened at the connection between the top of the inner tube and the top of the outer tube, the outer wall of the mesh tube is fitted with the inner wall of the inner tube, an inner filter filler is arranged in the mesh tube, an outer filter filler is arranged between the outer side of the inner tube and the inner wall of the outer tube, a partition is fixedly installed on the bottom of the inner wall of the outer tube, the bottom of the outer wall of the inner tube is connected and fixed to the middle of the partition, an extraction pipe is installed through the top of one side of the outer tube, an extraction pump is installed on the extraction pipe, the end of the extraction pump is connected to the end of the return pipe, and the return pipe is installed on the top of the side wall of the oil tank.

[0006] Preferably, the bottom tube has an L-shape when viewed from the front, and the center of the vertical portion of the bottom tube, the center of the inner tube and the center of the outer tube are on the same horizontal plane.

[0007] Preferably, the oil overflow windows are distributed at equal angles with respect to the center of the inner cylinder, and the diameter of the inner cylinder is not less than 1 / 3 of the inner diameter of the outer cylinder.

[0008] Preferably, the columnar structure at the bottom of the mesh cylinder is made of fine stainless steel wire mesh, and the diameter of the disc structure at the top of the mesh cylinder is larger than the diameter of the hole opened at the connection between the top of the inner cylinder and the top of the outer cylinder.

[0009] Preferably, the overall height of the inner filter filler and the outer filter filler is greater than half the overall height of the outer cylinder, and the packing density of the outer filter filler is not less than the packing density of the inner filter filler.

[0010] Preferably, the partition is arranged at an angle, and the bottom end of the top surface of the partition is in contact with the bottom end of the extraction tube.

[0011] Compared with the existing technology, the beneficial effects of the present invention are as follows: the external structure of the hydraulic station oil pump adopts a new structural design, and the hydraulic oil in the oil tank is efficiently removed by the external oil filter mechanism. At the same time, the external oil filter mechanism as a whole and the internal filter mechanism can be easily disassembled and disassembled, which is convenient for inspection, maintenance and transportation;

[0012] 1. The hydraulic oil in the oil tank is transferred to the bottom of the inner cylinder through the transfer pipe, bottom pipe and suction pump. The hydraulic oil gathers and moves upward through the inner filter filler in the mesh cylinder, and is discharged from the oil overflow window at the top of the inner cylinder. Then it flows downward through the outer filter filler and is finally returned to the oil tank through the extraction pipe, extraction pump and return pipe. During the whole process, the hydraulic oil is in contact with the filter filler for a long time and over a large area, ensuring the filtration effect of impurities in the hydraulic oil.

[0013] 2. The transfer pipe and bottom pipe, the extraction pipe and return pipe, as well as the mesh tube and the outer tube and inner tube can be easily disassembled and connected, which is convenient for the separation of the external oil filter mechanism as a whole and the cleaning of the internal filter filler and the external filter filler, ensuring that the external oil filter mechanism as a whole is easy to inspect, maintain and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the outer cylinder, inner cylinder and mesh cylinder of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the oil overflow window of the utility model from a top view;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the bottom tube and inner tube of the utility model from a top view.

[0018] In the figure: 1. Frame; 2. Oil extraction assembly; 3. Oil tank; 4. Transfer pipe; 5. Bottom pipe; 6. Suction pump; 7. Outer cylinder; 8. Inner cylinder; 9. Oil overflow window; 10. Mesh cylinder; 11. Inner filter packing; 12. Outer filter packing; 13. Partition; 14. Extraction pipe; 15. Extraction pump; 16. Reflux pipe. DETAILED DESCRIPTION

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

[0020] See also Figure 1-4, The utility model provides a technical solution: an external oil pump structure of a hydraulic station, including a frame 1, an oil pumping assembly 2, an oil tank 3, a transfer pipe 4, a bottom pipe 5, a suction pump 6, an outer cylinder 7, an inner cylinder 8, an oil overflow window 9, a mesh cylinder 10, an inner filter filler 11, an outer filter filler 12, a partition 13, an extraction pipe 14, an extraction pump 15 and a return pipe 16. The oil pumping assembly 2 is installed on the frame 1, and the oil tank 3 is installed on one side of the frame 1. The transfer pipe 4 is fixed to the bottom of the side wall of the oil tank 3. The end of the transfer pipe 4 is connected to one end of the bottom pipe 5. The suction pump 6 is installed on the bottom pipe 5. The bottom pipe 5 passes through the bottom of one side of the outer cylinder 7, and the other end of the bottom pipe 5 is connected to the bottom end of the inner cylinder 8. The top of the inner cylinder 8 It is connected and fixed to the top of the inner wall of the outer cylinder 7, an oil overflow window 9 is opened on the top of the side wall of the inner cylinder 8, a mesh cylinder 10 is installed through the hole opened at the connection between the top of the inner cylinder 8 and the top of the outer cylinder 7, the outer wall of the mesh cylinder 10 is fitted with the inner wall of the inner cylinder 8, an inner filter filler 11 is provided in the mesh cylinder 10, an outer filter filler 12 is provided between the outer side of the inner cylinder 8 and the inner wall of the outer cylinder 7, a partition 13 is fixedly installed on the bottom of the inner wall of the outer cylinder 7, the bottom of the outer wall of the inner cylinder 8 is connected and fixed to the middle of the partition 13, an extraction pipe 14 is installed through the top of one side of the outer cylinder 7, an extraction pump 15 is installed on the extraction pipe 14, the end of the extraction pump 15 is connected to the end of the return pipe 16, and the return pipe 16 is installed on the top of the side wall of the oil tank 3.

[0021] The bottom tube 5 of this example has an L-shape when viewed from the front. The center of the vertical portion of the bottom tube 5, the center of the inner tube 8, and the center of the outer tube 7 are on the same horizontal plane. This structural design enables the bottom tube 5 to centrally deliver hydraulic oil into the inner tube 8 and ensures that the hydraulic oil can flow evenly and smoothly inside the inner tube 8 and between the outer side of the inner tube 8 and the inner wall of the outer tube 7.

[0022] The oil overflow windows 9 are distributed at equal angles about the center of the inner cylinder 8. The diameter of the inner cylinder 8 is not less than 1 / 3 of the inner diameter of the outer cylinder 7. The above structural design ensures that the hydraulic oil can be discharged smoothly from the inner cylinder 8 from bottom to top, and ensures that the volume of the inner filter filler 11 in the inner cylinder 8 is sufficient.

[0023] The columnar structure at the bottom of the mesh tube 10 is made of fine stainless steel wire mesh, and the diameter of the disc structure at the top of the mesh tube 10 is larger than the diameter of the hole opened at the connection between the top of the inner tube 8 and the top of the outer tube 7. The above structural design ensures that the oil entering the inner tube 8 can stably pass through the mesh tube 10 and contact the inner filter filler 11, and enables the mesh tube 10 as a whole to be stably sealed and installed and conveniently disassembled.

[0024] The overall height of the inner filter packing 11 and the outer filter packing 12 is greater than half of the overall height of the outer cylinder 7, and the filling density of the outer filter packing 12 is not less than the filling density of the inner filter packing 11. The above structural design ensures that the hydraulic oil can be in contact with the inner filter packing 11 and the outer filter packing 12 for a long time and over a large area.

[0025] The partition 13 is tilted, and the bottom end of the top surface of the partition 13 is in contact with the bottom end of the extraction pipe 14 . The above structural design ensures that the hydraulic oil can be extracted and transferred by the extraction pipe 14 .

[0026] Working principle: When the outer cylinder 7 is used to filter the hydraulic oil in the oil tank 3, Figure 2 As shown, the transfer pipe 4 is connected to the bottom pipe 5, and the extraction pipe 14 is connected to the return pipe 16. The valves on the transfer pipe 4 and the return pipe 16 are opened, and the suction pump 6 is started to pump the hydraulic oil in the oil tank 3 into the bottom pipe 5 and into the inner tube 8 from the top of the bottom pipe 5. Under the action of the suction pump 6, the hydraulic oil gathers in the inner tube 8, and the oil level moves up through the bottom end of the mesh tube 10 and contacts the inner filter filler 11. The oil level continues to move upward until it reaches the oil overflow window 9, is discharged from the oil overflow window 9, flows downward through the outer filter filler 12, and gathers in the outer tube 7 above the partition 13. At this time, the extraction pump 15 is started to extract the filtered hydraulic oil and send it back to the oil tank 3 through the return pipe 16. In this way, continuous hydraulic oil circulation, filtration and impurity removal are carried out. This is the working principle of the external oil pump structure of the hydraulic station.

[0027] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic station oil pump external structure, comprising a frame (1), an oil pumping assembly (2) and an oil tank (3), characterized in that: An oil pumping assembly (2) is installed on the frame (1), an oil tank (3) is installed on one side of the frame (1), a transfer pipe (4) is fixed to the bottom of the side wall of the oil tank (3), the end of the transfer pipe (4) is connected to one end of the bottom pipe (5), a suction pump (6) is installed on the bottom pipe (5), the bottom pipe (5) passes through the bottom of one side of the outer cylinder (7), the other end of the bottom pipe (5) is connected to the bottom end of the inner cylinder (8), the top of the inner cylinder (8) is connected and fixed to the top of the inner wall of the outer cylinder (7), an oil overflow window (9) is opened on the top of the side wall of the inner cylinder (8), and a mesh cylinder (10) is installed through the hole opened at the connection between the top of the inner cylinder (8) and the top of the outer cylinder (7). 10), the outer wall of the mesh cylinder (10) is fitted with the inner wall of the inner cylinder (8), an inner filter filler (11) is provided in the mesh cylinder (10), an outer filter filler (12) is provided between the outer side of the inner cylinder (8) and the inner wall of the outer cylinder (7), a partition (13) is fixedly installed at the bottom of the inner wall of the outer cylinder (7), the bottom of the outer wall of the inner cylinder (8) is connected and fixed to the middle of the partition (13), an extraction pipe (14) is installed through the top of one side of the outer cylinder (7), an extraction pump (15) is installed on the extraction pipe (14), the end of the extraction pump (15) is connected to the end of the return pipe (16), and the return pipe (16) is installed on the top of the side wall of the oil tank (3).

2. The external oil pump structure of a hydraulic station according to claim 1, characterized in that: The bottom tube (5) is in an "L" shape when viewed from the front, and the center of the vertical portion of the bottom tube (5), the center of the inner tube (8), and the center of the outer tube (7) are located on the same horizontal plane.

3. The external oil pump structure of a hydraulic station according to claim 1, characterized in that: The oil overflow windows (9) are distributed at equal angles with respect to the center of the inner cylinder (8), and the diameter of the inner cylinder (8) is not less than 1 / 3 of the inner diameter of the outer cylinder (7).

4. The external oil pump structure of a hydraulic station according to claim 1, characterized in that: The columnar structure at the bottom of the mesh cylinder (10) is made of fine stainless steel wire mesh, and the diameter of the disc structure at the top of the mesh cylinder (10) is larger than the diameter of the hole opened at the connection between the top of the inner cylinder (8) and the top of the outer cylinder (7).

5. The external oil pump structure of a hydraulic station according to claim 1, characterized in that: The overall height of the inner filter filler (11) and the outer filter filler (12) is greater than half the overall height of the outer cylinder (7), and the packing density of the outer filter filler (12) is not less than the packing density of the inner filter filler (11).

6. The external oil pump structure of a hydraulic station according to claim 1, characterized in that: The partition (13) is arranged to be inclined, and the bottom end of the top surface of the partition (13) is in contact with the bottom end of the extraction tube (14).

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