Compact sealing type hydraulic station

Abstract

The utility model discloses a compact sealing type hydraulic station, which relates to the technical field of sealing type hydraulic stations and comprises an oil tank, a mounting hole is arranged on the upper surface of the oil tank, an oil pump is mounted at an opening of the mounting hole, a servo motor is arranged at the upper end of the oil pump, and the servo motor is vertically mounted and perpendicular to the oil tank. An oil way assembly is arranged on one side of the oil pump, an oil filling port is formed in the upper surface of one corner of the oil tank, the oil way assembly comprises an oil way block, a first electromagnetic reversing valve is arranged at the upper end of the oil way block, and a second electromagnetic reversing valve is arranged on one side of the first electromagnetic reversing valve. According to the scheme, the problems that most of motors of an existing sealing type hydraulic station are transversely installed, the use space is large, the number of pipelines is large, the pipelines are prone to being damaged after being used for a long time, regular overhaul is needed, the number is large, and time and labor are wasted during overhaul are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of sealed hydraulic power units, specifically a compact sealed hydraulic power unit. Background Technology

[0002] A sealed hydraulic power unit is a hydraulic transmission system with a sealed oil tank. Unlike open hydraulic power units, the hydraulic oil in a sealed hydraulic power unit does not come into contact with air, thus avoiding oil oxidation and contamination, and improving the reliability and stability of the system.

[0003] For example, Chinese Patent CN209195869U (A High-Sealing Safety Hydraulic Station) includes an oil tank, an electrical signal box fixedly connected to the back of the oil tank, a motor mounted on the top left side of the oil tank, an oil pump fixedly connected to the front of the motor, an oil pipe body connected to the left side of the oil pump, a first connecting plate fixedly connected to the end of the oil pipe body away from the oil pump, and a sealing ring fixedly connected to the bottom of the first connecting plate. This invention, through the arrangement of the oil tank, electrical signal box, motor, oil pump, oil pipe body, first connecting plate, sealing ring, mounting bolts, second connecting plate, mounting groove, annular groove, and oil filling pipe, can ensure the sealing performance of the device's pipelines. It also solves the problem of poor sealing between oil pipes in traditional hydraulic stations, which not only easily leads to oil leakage but also affects the normal operation of the entire device. This high-sealing safety hydraulic station has the advantage of good sealing between oil pipes.

[0004] However, most existing sealed hydraulic power units have horizontally mounted motors, which require a large amount of space and have many pipelines. These pipelines are prone to damage after long-term use and require regular maintenance. The large number of pipelines makes maintenance time-consuming and labor-intensive. Therefore, they do not meet the current needs. To address this, we propose a compact sealed hydraulic power unit. Utility Model Content

[0005] The purpose of this utility model is to provide a compact sealed hydraulic station to solve the problems mentioned in the background art, such as the fact that most of the motors of existing sealed hydraulic stations are installed horizontally, which requires a large space and has many pipelines. These pipelines are prone to damage after long-term use and require regular maintenance. The large number of pipelines and the time-consuming and labor-intensive maintenance are also problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compact sealed hydraulic station, comprising: an oil tank, an installation hole provided on the upper surface of the oil tank, an oil pump installed at the opening of the installation hole, a servo motor provided at the upper end of the oil pump, the servo motor being installed vertically and perpendicular to the oil tank, an oil circuit assembly provided on one side of the oil pump, and an oil filling port provided on the upper surface of one corner of the oil tank.

[0007] Preferably, the oil circuit assembly includes an oil circuit block, with a first electromagnetic directional valve disposed at the upper end of the oil circuit block, and a second electromagnetic directional valve disposed on one side of the first electromagnetic directional valve, and the oil flow rate of the oil circuit block is controlled by the first electromagnetic directional valve and the second electromagnetic directional valve.

[0008] Preferably, the oil circuit assembly further includes a connector, which is mounted on one side surface of the oil circuit block, and has an oil inlet / outlet channel inside the connector.

[0009] Preferably, an oil level and temperature gauge is provided on one side of the front surface of the oil tank, and a discharge port is provided on the other side of the front surface near the bottom. The discharge port is connected to the inside of the oil tank and is sealed by an external sealing element.

[0010] Preferably, mounting plates are provided on both bottom surfaces of the oil tank, and the mounting plates are welded and fixed to the oil tank. Fixing holes are provided on both ends of the mounting plates.

[0011] Preferably, an oil pressure gauge is provided on one side of the oil pump, and an oil filler cap is provided at the opening of the oil filler port.

[0012] Preferably, the filler cap is made of stainless steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model sets mounting holes and filling ports on the upper surface of the oil tank, installs the servo motor vertically, perpendicular to the oil tank, and connects the oil circuit block to the oil pump through the connecting seat. The oil flow rate of the oil circuit block is controlled by the first electromagnetic reversing valve and the second electromagnetic reversing valve, which concentrates the oil inlet and return, improves the original oil circuit circulation mode, reduces the use of pipelines, and leaves only mounting holes and filling ports on the upper surface of the oil tank, reducing the usable space and achieving the effect of a compact sealed hydraulic station. It solves the problem that most of the motors of the existing sealed hydraulic stations are installed horizontally, which requires a large usable space and many pipelines. The pipelines are prone to damage after long-term use and need to be regularly inspected. The number of pipelines is large and the inspection is time-consuming and labor-intensive.

[0015] (2) The oil filler is sealed by the oil filler cap to prevent oil leakage. The oil filler cap is made of stainless steel, which improves the corrosion resistance of the oil filler cap, makes it less prone to damage, and improves the sealing performance and service life. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall right-side view of the present invention;

[0018] Figure 3 This is a schematic diagram of the oil circuit assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fuel tank structure of this utility model;

[0020] In the diagram: 1. Oil tank; 2. Oil circuit assembly; 3. Servo motor; 4. Oil pump; 5. Filler cap; 6. Oil level and temperature gauge; 7. Discharge port; 8. Mounting plate; 9. First solenoid directional valve; 10. Second solenoid directional valve; 11. Oil circuit block; 12. Mounting hole; 13. Filler port; 14. Fixing hole; 15. Connecting seat; 16. Oil pressure gauge. Detailed Implementation

[0021] 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 The present invention provides an embodiment of a compact sealed hydraulic station, comprising: an oil tank 1, an installation hole 12 on the upper surface of the oil tank 1, an oil pump 4 installed at the opening of the installation hole 12, a servo motor 3 installed at the upper end of the oil pump 4, the servo motor 3 being vertically installed perpendicular to the oil tank 1, an oil circuit assembly 2 on one side of the oil pump 4, an oil filling port 13 on the upper surface of a corner of the oil tank 1, an oil filling port sealing cover 5 at the opening of the oil filling port 13, the oil filling port sealing cover 5 being made of stainless steel, the oil filling port 13 being sealed by the oil filling port sealing cover 5 to prevent oil leakage, the stainless steel oil filling port sealing cover 5 improving corrosion resistance, not being easily damaged, and improving service life;

[0023] The oil circuit assembly 2 includes an oil circuit block 11. A first solenoid directional valve 9 is installed at the upper end of the oil circuit block 11, and a second solenoid directional valve 10 is installed on one side of the first solenoid directional valve 9. The oil flow rate of the oil circuit block 11 is controlled by the first solenoid directional valve 9 and the second solenoid directional valve 10. The oil circuit assembly 2 also includes a connecting seat 15, which is installed on one side surface of the oil circuit block 11 and has an inlet and outlet oil passage inside. An oil level and temperature gauge 6 is installed on the front surface of one side of the oil tank 1, and an oil pressure gauge 1 is installed on one side of the oil pump 4. 6. Install the oil pump 4 and servo motor 3 on the mounting hole 12 to fix them to the oil tank 1. The servo motor 3 is installed vertically, perpendicular to the oil tank 1. The oil circuit block 11 is connected to the oil pump 4 through the connecting seat 15. The oil flow rate of the oil circuit block 11 is controlled by the first electromagnetic reversing valve 9 and the second electromagnetic reversing valve 10. The oil inlet and return are concentrated, improving the original oil circuit circulation method, reducing the use of pipelines, and leaving only the mounting hole 12 and the oil filling port 13 on the upper surface of the oil tank 1, reducing the space required and achieving the effect of a compact and sealed hydraulic station.

[0024] When in use, oil is added through the oil filler port 13, and the oil temperature and oil level are detected by the oil level and temperature gauge 6. The oil flow rate, oil inlet and oil return are controlled by the first solenoid directional valve 9 and the second solenoid directional valve 10. The sealed hydraulic station is operated in coordination with the oil pressure gauge 16, oil pump 4, servo motor 3 and oil circuit block 11. This is the current way of using a sealed hydraulic station and is the existing technology.

[0025] Please see Figure 1 On the other side of the oil tank 1, near the bottom, there is a discharge port 7 on the front surface. The discharge port 7 is connected to the inside of the oil tank 1 and is sealed by an external sealing element. The discharge port 7 facilitates the discharge of residual oil inside the oil tank 1 and also facilitates internal cleaning.

[0026] Please see Figure 1 Mounting plates 8 are provided on both bottom surfaces of the oil tank 1, and the mounting plates 8 are welded and fixed to the oil tank 1. Fixing holes 14 are provided on both ends of the mounting plates 8, and fasteners are connected through the fixing holes 14 to facilitate the fixing of the oil tank 1.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A compact, sealed hydraulic power unit, comprising an oil tank (1), characterized in that: The upper surface of the oil tank (1) is provided with a mounting hole (12), and an oil pump (4) is installed at the opening of the mounting hole (12). A servo motor (3) is provided at the upper end of the oil pump (4), and the servo motor (3) is installed vertically and perpendicular to the oil tank (1). An oil circuit assembly (2) is provided on one side of the oil pump (4), and an oil filling port (13) is provided on the upper surface of one corner of the oil tank (1).

2. The compact sealed hydraulic power unit according to claim 1, characterized in that: The oil circuit assembly (2) includes an oil circuit block (11), with a first electromagnetic reversing valve (9) provided at the upper end of the oil circuit block (11) and a second electromagnetic reversing valve (10) provided on one side of the first electromagnetic reversing valve (9). The oil flow rate of the oil circuit block (11) is controlled by the first electromagnetic reversing valve (9) and the second electromagnetic reversing valve (10).

3. A compact sealed hydraulic power unit according to claim 2, characterized in that: The oil circuit assembly (2) also includes a connector (15), which is mounted on one side surface of the oil circuit block (11) and has an oil inlet / outlet channel inside.

4. A compact sealed hydraulic power unit according to claim 1, characterized in that: An oil level and temperature gauge (6) is provided on one side of the front surface of the oil tank (1), and a discharge port (7) is provided on the other side of the front surface near the bottom. The discharge port (7) is connected to the inside of the oil tank (1), and the discharge port (7) is sealed by an external sealing element.

5. A compact sealed hydraulic power unit according to claim 1, characterized in that: Mounting plates (8) are provided on both bottom surfaces of the oil tank (1), and the mounting plates (8) are welded and fixed to the oil tank (1). Fixing holes (14) are provided on both ends of the mounting plates (8).

6. A compact sealed hydraulic power unit according to claim 1, characterized in that: An oil pressure gauge (16) is provided on one side of the oil pump (4), and an oil filling port sealing cap (5) is provided at the opening of the oil filling port (13).

7. A compact sealed hydraulic power unit according to claim 6, characterized in that: The oil filler cap (5) is made of stainless steel.

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