Hydraulic power unit convenient to maintain

Abstract

The utility model discloses a hydraulic power unit convenient to maintain, which belongs to the technical field of hydraulic power units and comprises a protective support, a motor and a hydraulic pump, the motor and the hydraulic pump are positioned on the protective support and combined with each other, the protective support comprises a bottom plate and a top plate, four struts are arranged between the bottom plate and the top plate, and each strut is fixedly welded with the bottom plate and the top plate. The motor is installed on the top wall of the top plate, the hydraulic pump is installed on the top wall of the bottom plate, top grooves are formed in the four corners of the top wall of the top plate, a sliding rod and two springs are arranged in each top groove, each sliding rod is in an inverted T shape, one side of each spring is connected to the corresponding sliding rod, and the other side of each spring is connected to the inner wall of the corresponding top groove. Mounting grooves are formed in the four sides of the top wall of the bottom plate correspondingly, rotating shafts are rotationally connected into the four mounting grooves correspondingly, and the four rotating shafts are horizontally arranged. According to the hydraulic power unit convenient to maintain, the hydraulic pump is very convenient to maintain, and a large number of parts do not need to be disassembled.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic power units, and particularly relates to a hydraulic power unit convenient for maintenance. Background Technique

[0002] A hydraulic power unit (HPU) is used as an oil supply device. It is connected to several hydraulic cylinders through an external pipeline system to control the actions of multiple groups of valves. The fuel tank, oil pump, and accumulator form an independent and sealed power oil source system. The oil station can be equipped with a PLC control system, which controls all internal hydraulic functions and generates signals to exchange with the control room (DCS). Control components such as hydraulic servo valves are directly installed on the hydraulic cylinders. Through this valve, high-pressure oil is pressed into the cylinder or high-pressure oil is released from it. Under normal conditions, the oil pump supplies oil to the system and automatically maintains the rated pressure of the system. Through the locking of the control valve, the valve position holding function of the valve in any position is realized; in the working state, the hydraulic actuator is controlled by the solenoid valve. The system command signal makes the solenoid valve act, controls the release of the oil pressure and the energy of the accumulator, and then controls the cylinder slide valve. Through the mechanical transmission mechanism, the valve is driven to implement rapid closing, normal opening and closing, and test control.

[0003] In the process of realizing the utility model, the inventor found that there are at least the following problems in this technology: At present, a protective shell structure is provided on the outside of some structures (such as hydraulic pumps) of some hydraulic power units for protection, but the subsequent maintenance work of such hydraulic power units with protective shell structures is very troublesome, and a large number of parts (such as bolts, screws, etc.) need to be disassembled by the staff before maintenance can be carried out.

[0004] Therefore, we propose a hydraulic power unit convenient for maintenance to solve the above problems. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a hydraulic power unit convenient for maintenance, which is very convenient for maintaining the hydraulic pump and does not require disassembling a large number of parts, and can effectively solve the problems in the background technique.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A hydraulic power unit convenient for maintenance includes a protective support, a motor and a hydraulic pump combined with each other on the protective support. The protective support includes a bottom plate and a top plate. Four columns are provided between the bottom plate and the top plate, and each column is welded and fixed to the bottom plate and the top plate;

[0008] The motor is installed on the top wall of the top plate, and the hydraulic pump is installed on the top wall of the bottom plate. Top grooves are formed at the four corners of the top wall of the top plate. A sliding rod and two springs are provided in each top groove. The sliding rod is in an inverted T shape. One side of each of the two springs is connected to the sliding rod, and the other side of each of the two springs is connected to the inner wall of the top groove;

[0009] Installation grooves are formed on the four sides of the top wall of the bottom plate. Rotating shafts are respectively rotatably connected in the four installation grooves. The four rotating shafts are all horizontally arranged. Maintenance plates are respectively fixedly sleeved on the four rotating shafts. Slots are formed on the sides of the four maintenance plates facing away from the rotating shafts. A positioning insertion rod is connected below each sliding rod. The positioning insertion rod slidably passes through the top plate and fits into the slot, thereby fixing the maintenance plate.

[0010] As a preferred implementation, the four support columns are distributed in a rectangular array, and the four support columns are all fixed at the corners of the top wall of the bottom plate; thus, the four support columns can support and fix the four corners of the top plate and the motor thereon, ensuring the structural stability of the motor.

[0011] As a preferred implementation, the two springs in the top groove are both vertically arranged and symmetric on both sides of the sliding rod; so that the two springs can jointly affect the sliding rod, enabling the sliding rod to maintain balance when telescoping.

[0012] As a preferred implementation, the top of the sliding rod slides out of the top groove and extends above the top plate, and the sliding rod fits with the inner wall of the top groove; so that the sliding rod can only telescope along the vertical direction without shaking.

[0013] As a preferred implementation, a soft cushion cap is fixedly sleeved on the top of the sliding rod; the soft cushion cap can be made of rubber, for example, making it more comfortable when a human hand presses on the soft cushion cap.

[0014] As a preferred implementation, there are four soft cushion caps and they are distributed on the four sides of the top of the top plate; thus, the four sliding rods and the four positioning insertion rods can respectively fix the four maintenance plates.

[0015] As a preferred implementation, the positioning insertion rod fits with the inner wall of the slot; so that the positioning insertion rod will not shake after being inserted into the slot, further ensuring that the maintenance plate can remain stable. At this time, the maintenance plate is in a vertical state, thereby closing the space between the bottom plate and the top plate and providing better protection for the hydraulic pump.

[0016] In summary, the technical effects and advantages of the present utility model:

[0017] The hydraulically powered unit that is convenient for maintenance has a protective support designed with an openable structure on all four sides. When it is necessary to maintain the hydraulic pump inside the protective support, the four maintenance plates can be rotated along the rotating shaft, and the inside of the protective support (the area between the bottom plate and the top plate) can be completely opened, and the hydraulic pump is also directly exposed, eliminating the need to disassemble a large number of parts, thus facilitating the maintenance work of the hydraulic pump;

[0018] For the hydraulically powered unit that is convenient for maintenance, hold the four soft pad caps and lift them upward. When the four positioning insertion rods are completely disengaged from the four slots, the four maintenance plates return to a free state. At this time, gently toggle the maintenance plates, and the four maintenance plates can be rotated and flipped outward to the outside, opening the openings on the four sides of the protective support, thus facilitating the maintenance of the hydraulic pump inside the protective support. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a top view of the present utility model;

[0021] Figure 3 is a vertical sectional view on one side of the present utility model;

[0022] Figure 4 is of the present utility model Figure 3 is an enlarged view of the structure at A in the present utility model;

[0023] Figure 5 is a vertical sectional view on the other side of the present utility model;

[0024] Figure 6 is of the present utility model Figure 5 is an enlarged view of the structure at B in the present utility model.

[0025] In the figure: 1. Protective support; 2. Bottom plate; 3. Support pillar; 4. Top plate; 5. Motor; 6. Hydraulic pump; 7. Installation groove; 8. Rotating shaft; 9. Maintenance plate; 10. Top groove; 11. Slide bar; 12. Spring; 13. Soft pad cap; 14. Positioning insertion rod; 15. Slot. Detailed Description of the Preferred Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Refer to Figures 1 - 6, a hydropower unit convenient for maintenance, comprising a protective support 1, a motor 5 and a hydraulic pump 6 which are combined with each other on the protective support 1. The protective support 1 includes a bottom plate 2 and a top plate 4. Four columns 3 are arranged between the bottom plate 2 and the top plate 4. Each column 3 is fixedly welded to the bottom plate 2 and the top plate 4. The motor 5 is installed on the top wall of the top plate 4, and the hydraulic pump 6 is installed on the top wall of the bottom plate 2. The four columns 3 are distributed in a rectangular array, and the four columns 3 are fixed at the corners of the top wall of the bottom plate 2, so that the four columns 3 can support and fix the four corners of the top plate 4 and the motor 5 thereon, ensuring the structural stability of the motor 5;

[0028] At the four corners of the top wall of the top plate 4, top grooves 10 are formed. In each top groove 10, a sliding rod 11 and two springs 12 are arranged. The sliding rod 11 is in an inverted T shape. One side of each of the two springs 12 is connected to the sliding rod 11, and the other side of each of the two springs 12 is connected to the inner wall of the top groove 10. The two springs 12 in the top groove 10 are arranged vertically and are symmetric on both sides of the sliding rod 11, so that the two springs 12 can jointly affect the sliding rod 11, enabling the sliding rod 11 to maintain balance when telescoping. The top of the sliding rod 11 slides out of the top groove 10 and extends above the top plate 4, and the sliding rod 11 fits with the inner wall of the top groove 10, so that the sliding rod 11 can only telescope along the vertical direction without shaking. In addition, a soft pad cap 13 is fixedly sleeved on the top of the sliding rod 11. The soft pad cap 13 can be made of rubber, making it more comfortable when a human hand presses on the soft pad cap 13;

[0029] Installation grooves 7 are formed on the four sides of the top wall of the bottom plate 2. Rotating shafts 8 are respectively rotatably connected in the four installation grooves 7. The four rotating shafts 8 are arranged horizontally. Maintenance plates 9 are respectively fixedly sleeved on the four rotating shafts 8. Slots 15 are formed on the sides of the four maintenance plates 9 facing away from the rotating shafts 8. A positioning insertion rod 14 is connected below each sliding rod 11. There are four soft pad caps 13, which are distributed on the four sides of the top of the top plate 4, so that the four sliding rods 11 and the four positioning insertion rods 14 can respectively fix the four maintenance plates 9. The positioning insertion rod 14 slides through the top plate 4 and fits into the slot 15 to fix the maintenance plate 9. The positioning insertion rod 14 fits with the inner wall of the slot 15, so that the positioning insertion rod 14 will not shake after being inserted into the slot 15, thus ensuring that the maintenance plate 9 can be stable and immovable. At this time, the maintenance plate 9 is in a vertical state, so as to enclose the space between the bottom plate 2 and the top plate 4 and better protect the hydraulic pump 6.

[0030] The hydraulic power unit is easy to maintain: during its use, if the motor 5 and the hydraulic pump 6 need maintenance due to long-term use, the openings on the four sides of the protective support 1 can be opened. The specific operation method is: the staff holds the four soft cushion caps 13 respectively and lifts them upward, so that the four soft cushion caps 13 drive the four sliding rods 11 and the four positioning rods 14 to slide up (the springs 12 connected to the four sliding rods 11 are compressed). When the four positioning rods 14 are completely disengaged from the four slots 15, the four maintenance plates 9 are restored to a free state. At this time, the staff only needs to gently move the maintenance plates 9 to make the four maintenance plates 9 rotate with the four rotating shafts 8 and flip over to the outside, open the openings on the four sides of the protective support 1, and the staff can also easily maintain the hydraulic pump 6 in the protective support 1.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic power unit that is convenient for maintenance, characterized in that It includes a protective support (1), a motor (5) and a hydraulic pump (6) which are combined with each other on the protective support (1). The protective support (1) includes a bottom plate (2) and a top plate (4). Four struts (3) are provided between the bottom plate (2) and the top plate (4), and each strut (3) is fixedly welded to the bottom plate (2) and the top plate (4). The motor (5) is installed on the top wall of the top plate (4), and the hydraulic pump (6) is installed on the top wall of the bottom plate (2). Top grooves (10) are formed at the four corners of the top wall of the top plate (4). A sliding rod (11) and two springs (12) are provided in each top groove (10). The sliding rod (11) is in an inverted T shape. One side of each of the two springs (12) is connected to the sliding rod (11), and the other side of each of the two springs (12) is connected to the inner wall of the top groove (10). Installation grooves (7) are formed on the four sides of the top wall of the bottom plate (2). Rotating shafts (8) are respectively rotatably connected in the four installation grooves (7). The four rotating shafts (8) are all horizontally arranged. Maintenance plates (9) are respectively fixedly sleeved on the four rotating shafts (8). Slots (15) are formed on the sides of the four maintenance plates (9) facing away from the rotating shafts (8). A positioning insertion rod (14) is connected below each sliding rod (11). The positioning insertion rod (14) slides through the top plate (4) and fits into the slot (15).

2. The hydraulic power unit convenient for maintenance according to claim 1, wherein, The four struts (3) are distributed in a rectangular array, and the four struts (3) are all fixed at the corners of the top wall of the bottom plate (2).

3. A hydraulic power unit convenient for maintenance according to claim 1, characterized in that, The two springs (12) in the top groove (10) are both vertically arranged, and the two springs (12) are symmetric on both sides of the sliding rod (11).

4. A hydraulic power unit that is convenient for maintenance according to claim 3, characterized in that, The top of the sliding rod (11) slides out of the top groove (10) and extends above the top plate (4), and the sliding rod (11) is in contact with the inner wall of the top groove (10).

5. A hydraulic power unit convenient for maintenance according to claim 4, characterized in that, A soft pad cap (13) is fixedly sleeved on the top of the sliding rod (11).

6. A hydraulic power unit convenient for maintenance according to claim 5, characterized in that, There are four soft pad caps (13) in total and they are distributed on the four sides of the top of the top plate (4).

7. A hydraulic power unit convenient for maintenance according to claim 1, characterized in that, The positioning insertion rod (14) is in contact with the inner wall of the slot (15).

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