Oil pressure stabilizing structure of hydraulic engine

Abstract

The utility model discloses an oil pressure stabilizing structure of a hydraulic engine, and relates to the technical field of oil pressure stabilizing equipment. The hydraulic engine comprises a base, one side of the top of the base is fixedly connected with a hydraulic engine body, the other side of the top of the base is fixedly connected with a hydraulic oil driver, and one side of the hydraulic oil driver is provided with a pressure stabilizing box; a pressure reducing assembly is arranged in an inner cavity of the pressure stabilizing box and comprises a first piston barrel fixedly connected to the inner cavity of the pressure stabilizing box, a first piston plate arranged in an inner cavity of the first piston barrel and a first pipeline communicated with the first piston barrel. The pressure reduction assembly is arranged, the double-layer partition plate is arranged in the energy storage box to form the high-pressure cavity, the medium-pressure cavity and the low-pressure cavity, pressure gradient release is achieved in cooperation with stepped displacement of the sealing block, and when oil pressure is excessively high instantaneously, the first piston plate pushes the sealing block to sequentially break through the high-pressure cavity and the medium-pressure cavity and finally enters the low-pressure cavity to complete multi-stage pressure release. And pressure peak impact is avoided.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic pressure stabilization equipment, and in particular relates to a hydraulic engine hydraulic pressure stabilization structure. Background Technology

[0002] As a key power source for modern industrial equipment, the operational stability of hydraulic engines directly affects production safety and efficiency. As a core power device in fields such as engineering machinery and ships, constant pressure control of the hydraulic system is one of the core technologies to ensure the efficient operation of hydraulic engines.

[0003] Existing hydraulic engine oil pressure stabilization structures mostly rely on electronically controlled valve assemblies. However, under conditions of high vibration, high pollution, or extreme temperatures, they suffer from problems such as slow response and high failure rates. Especially during sudden load changes, the oil pressure fluctuates greatly, causing actuator vibration or even failure. To address these issues, we provide a hydraulic engine oil pressure stabilization structure to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a hydraulic engine oil pressure stabilization structure. By combining the pressure reducing component and the pressure boosting component, it solves the problems of severe pressure fluctuation, slow response and high energy consumption in the existing hydraulic engine oil pressure stabilization structures.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to a hydraulic engine oil pressure stabilization structure, comprising a base, a hydraulic engine body fixedly connected to one side of the top of the base, and a hydraulic oil drive motor fixedly connected to the other side of the top of the base. A pressure stabilizing box is provided on one side of the hydraulic oil drive motor. A pressure reducing assembly is provided in the inner cavity of the pressure stabilizing box, the pressure reducing assembly including a first piston cylinder fixedly connected to the inner cavity of the pressure stabilizing box, a first piston plate disposed in the inner cavity of the first piston cylinder, a first pipe communicating with the first piston cylinder, an energy storage tank communicating with the other end of the first pipe, and a second pipe communicating with the bottom of the energy storage tank. A pressure boosting assembly is also provided in the inner cavity of the pressure stabilizing box, the pressure boosting assembly including a second piston cylinder fixedly connected to the inner cavity of the pressure stabilizing box, a second piston plate disposed in the inner cavity of the second piston cylinder, a third pipe communicating with one side of the second piston cylinder, and a fourth pipe communicating with the surface of the second piston cylinder.

[0007] The present invention is further configured such that a first piston rod is fixedly connected to one side of the first piston plate, and the other end of the first piston rod extends through to the outside of the first piston cylinder and is fixedly connected to a drive wheel. A first spring is sleeved on the surface of the first piston rod, one end of the first spring is fixedly connected to one side of the first piston plate, and the other end of the first spring is fixedly connected to the inner cavity of the first piston cylinder. By designing the first spring, the action of the first spring on the first piston plate ensures that the first piston plate is reset.

[0008] The present invention is further configured such that a second piston rod is fixedly connected to one side of the second piston cylinder, and the other end of the second piston rod extends through to the outside of the second piston cylinder and is fixedly connected to a driving block. A second spring is sleeved on the surface of the second piston rod. One end of the second spring is fixedly connected to one side of the second piston plate, and the other end of the second spring is fixedly connected to the inner cavity of the second piston cylinder. Through the cooperation of the driving wheel and the driving block, when the oil pressure in the inner cavity of the first piston cylinder is lower than the set value, the first piston plate will move downward through the first piston rod under the action of the first spring. The driving wheel will drive the second piston rod to move through the driving block. The second piston rod will input the oil in the inner cavity of the second piston cylinder into the third pipe through the second piston plate, and then enter the inner cavity of the first piston cylinder, thereby achieving a real-time mechanical pressure stabilization effect.

[0009] The present invention is further configured such that a partition is provided in the inner cavity of the energy storage tank, a third spring is fixedly connected to one side of the partition, a sealing block is fixedly connected to one end of the third spring, and a through groove is opened on one side of the partition. Through the action of the third spring and the sealing block, when the oil pressure suddenly rises, the high-pressure chamber compresses and stores part of the oil. If the oil pressure continues to rise and exceeds the bearing capacity of the high-pressure chamber, it pushes the sealing block to move outward, exposing the through groove, and the excess oil enters the medium-pressure chamber, and similarly enters the low-pressure chamber.

[0010] The present invention is further configured such that there are two partitions, and the inner cavity of the energy storage tank is provided with three guide plates. The two partitions divide the energy storage tank into a high-pressure chamber, a medium-pressure chamber and a low-pressure chamber.

[0011] The present invention is further configured such that one end of the second pipe is connected to the surface of the fourth pipe through a three-way interface, the third pipe is connected to the surface of the first piston cylinder, and both the surface of the third pipe and the fourth pipe are connected to a one-way valve. By setting the one-way valve, oil backflow is prevented, and the stability of the entire device is ensured.

[0012] The present invention is further configured such that an oil inlet pipe is connected to the surface of the first piston cylinder, and an oil outlet pipe is connected to the bottom of the first piston cylinder.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model sets up a pressure reducing component, and sets up a double-layer partition in the energy storage tank to form a high-pressure chamber, a medium-pressure chamber and a low-pressure chamber. With the step displacement of the sealing block, the pressure gradient is released. When the oil pressure is too high instantaneously, the first piston plate pushes the sealing block to break through the high-pressure chamber and the medium-pressure chamber in sequence, and finally enters the low-pressure chamber to complete multi-stage pressure relief, avoiding pressure peak impact.

[0015] 2. This utility model, by setting up a pressurization component, connects the first piston cylinder with the second piston cylinder through the drive wheel and the drive block. When the oil pressure drops, the first piston plate moves down, causing the drive wheel to press down. The drive block pulls the second piston plate to inject the energy storage oil into the second piston cylinder through the one-way valve and into the inner cavity of the first piston cylinder through the third pipe, forming an active pressurization cycle. The first spring and the second spring alternately store energy during the depressurization or pressurization process, reducing the external energy input requirement.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional diagram of a hydraulic engine oil pressure stabilization structure.

[0019] Figure 2 This is a diagram showing the internal structure of a pressure stabilizing box in a hydraulic engine oil pressure stabilization structure.

[0020] Figure 3 This is a cross-sectional view of the first and second piston cylinders in a hydraulic engine oil pressure stabilization structure.

[0021] Figure 4 This is a cross-sectional view of an energy storage tank in a hydraulic engine oil pressure stabilization structure.

[0022] Figure 5 This is an exploded view of the partition and sealing block in a hydraulic engine oil pressure stabilization structure.

[0023] In the attached diagram: 1. Base; 2. Hydraulic engine body; 3. Hydraulic oil drive motor; 4. Pressure stabilizing box; 5. First piston cylinder; 6. First piston plate; 7. First pipe; 8. Energy storage tank; 9. Second pipe; 10. Second piston cylinder; 11. Second piston plate; 12. Third pipe; 13. Fourth pipe; 14. First piston rod; 15. Drive wheel; 16. First spring; 17. Second piston rod; 18. Drive block; 19. Second spring; 20. Partition plate; 21. Third spring; 22. Sealing block; 23. Guide plate; 24. One-way valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figures 1-5 This utility model is a hydraulic engine oil pressure stabilization structure, including a base 1, a hydraulic engine body 2 fixedly connected to one side of the top of the base 1, a hydraulic oil drive 3 fixedly connected to the other side of the top of the base 1, and a pressure stabilizing box 4 disposed on one side of the hydraulic oil drive 3; a pressure reducing component is disposed in the inner cavity of the pressure stabilizing box 4, the pressure reducing component includes a first piston cylinder 5 fixedly connected to the inner cavity of the pressure stabilizing box 4, a first piston plate 6 disposed in the inner cavity of the first piston cylinder 5, a first pipe 7 communicating with the first piston cylinder 5, an energy storage box 8 communicating with the other end of the first pipe 7, and a second pipe 9 communicating with the bottom of the energy storage box 8; a pressure boosting component is also disposed in the inner cavity of the pressure stabilizing box 4, the pressure boosting component includes a second piston cylinder 10 fixedly connected to the inner cavity of the pressure stabilizing box 4, a second piston plate 11 disposed in the inner cavity of the second piston cylinder 10, a third pipe 12 communicating with one side of the second piston cylinder 10, and a fourth pipe 13 communicating with the surface of the second piston cylinder 10.

[0027] Further details: There are two pressure stabilizing boxes 4, which stabilize the pressure of the inlet and outlet oil pipes respectively. The oil outlet of the hydraulic oil drive motor 3 is connected to the oil inlet pipe inside the pressure stabilizing box 4 through a pipe, and the oil outlet pipe is connected to the oil inlet of the hydraulic engine body 2 through a pipe. The oil outlet of the hydraulic engine body 2 is connected to the oil inlet pipe inside the other pressure stabilizing box 4 through a pipe, and the oil outlet pipe is connected to the oil return port of the hydraulic engine body 2 through a pipe. The piston plate and the corresponding piston cylinder are all slidably connected, and each sliding part is equipped with a sealing ring to ensure airtightness.

[0028] Example 2

[0029] Please see Figures 1-5Based on Embodiment 1, a first piston rod 14 is fixedly connected to one side of the first piston plate 6. The other end of the first piston rod 14 extends through to the outside of the first piston cylinder 5 and is fixedly connected to a drive wheel 15. A first spring 16 is sleeved on the surface of the first piston rod 14. One end of the first spring 16 is fixedly connected to one side of the first piston plate 6, and the other end of the first spring 16 is fixedly connected to the inner cavity of the first piston cylinder 5. A second piston rod 17 is fixedly connected to one side of the second piston cylinder 10. The other end of the second piston rod 17 extends through to the outside of the second piston cylinder 10 and is fixedly connected to a drive block 18. A second spring 19 is sleeved on the surface of the second piston rod 17. One end of the second spring 19 is fixedly connected to one side of the second piston plate 11. The second spring 19 is fixedly connected to the inner cavity of the second piston cylinder 10. The inner cavity of the energy storage tank 8 is provided with a partition 20. A third spring 21 is fixedly connected to one side of the partition 20. A sealing block 22 is fixedly connected to one end of the third spring 21. A through groove is opened on one side of the partition 20. There are two partitions 20. The inner cavity of the energy storage tank 8 is provided with a guide plate 23. There are three guide plates 23. One end of the second pipe 9 is connected to the surface of the fourth pipe 13 through a three-way interface. The third pipe 12 is connected to the surface of the first piston cylinder 5. Both the surface of the third pipe 12 and the surface of the fourth pipe 13 are connected with a one-way valve 24. The surface of the first piston cylinder 5 is connected with an oil inlet pipe. The bottom of the first piston cylinder 5 is connected with an oil outlet pipe.

[0030] Further details: By designing a first spring 16, the action of the first spring 16 on the first piston plate 6 ensures that the first piston plate 6 returns to its original position. Through the cooperation of the drive wheel 15 and the drive block 18, when the oil pressure inside the first piston cylinder 5 is lower than the set value, the first piston plate 6, under the action of the first spring 16, drives the drive wheel 15 downward through the first piston rod 14. The drive wheel 15 then drives the second piston rod 17 to move through the drive block 18. The second piston rod 17, through the second piston plate 11, inputs the oil inside the second piston cylinder 10 into the third pipe 12. Then, it enters the inner cavity of the first piston cylinder 5 to achieve real-time mechanical pressure stabilization. Two partitions 20 divide the energy storage tank 8 into a high-pressure chamber, a medium-pressure chamber, and a low-pressure chamber. Through the action of the third spring 21 and the sealing block 22, when the oil pressure suddenly rises, the high-pressure chamber compresses and stores some of the oil. If the oil pressure continues to rise beyond the bearing capacity of the high-pressure chamber, it pushes the sealing block 22 to move outward, exposing the through groove. The excess oil enters the medium-pressure chamber, and similarly enters the low-pressure chamber. By setting a one-way valve 24, oil backflow is prevented, ensuring the stability of the entire device.

[0031] The working principle of this utility model is as follows: the oil outlet of the hydraulic oil drive motor 3 enters the inner cavity of the first piston cylinder 5 through the pipeline and the oil inlet pipe. When the oil pressure is normal, the oil enters the oil inlet of the hydraulic engine body 2 through the oil outlet pipe and the pipeline.

[0032] When the oil pressure increases, it pushes the first piston plate 6 upward. During the upward movement of the first piston plate 6, the first pipe 7 is exposed. Under pressure, the oil enters the inner cavity of the energy storage tank 8. The high-pressure chamber compresses and stores some of the oil. If the oil pressure continues to rise and exceeds the bearing capacity of the high-pressure chamber, it pushes the sealing block 22 to move outward, exposing the through groove. The excess oil enters the medium-pressure chamber, and similarly enters the low-pressure chamber. After the oil pressure decreases, the first piston plate 6 returns to its original position under the action of the first spring 16, sealing the first pipe 7.

[0033] When the oil pressure decreases, the first piston plate 6 moves downward under the action of the first spring 16. The first piston plate 6 drives the drive wheel 15 to move downward through the first piston rod 14. The drive wheel 15 drives the second piston rod 17 to move through the drive block 18. The second piston rod 17 inputs the oil in the inner cavity of the second piston cylinder 10 into the third pipe 12 through the second piston plate 11, and then enters the inner cavity of the first piston cylinder 5, realizing a real-time mechanical pressure stabilization effect. The energy storage tank 8 enters the inner cavity of the second piston cylinder 10 through the second pipe 9 and the fourth pipe 13 to replenish the inner cavity of the second piston cylinder 10. The one-way valve 24 prevents oil backflow. Through the mechanical mechanism, bidirectional oil pressure compensation is realized, which improves the functionality and response speed of the oil pressure stabilization device and can better adapt to the complex working conditions of the hydraulic engine.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hydraulic engine oil pressure stabilizing structure comprising a base (1), characterized in that: The bottom (1) top side is fixedly connected with hydraulic engine body (2), the bottom (1) top side is fixedly connected with hydraulic oil drive machine (3), one side of the hydraulic oil drive machine (3) is provided with pressure stabilizing box (4); The inner cavity of the pressure stabilizing box (4) is provided with a pressure reducing assembly, which comprises a first piston cylinder (5) fixedly connected in the inner cavity of the pressure stabilizing box (4), a first piston plate (6) arranged in the inner cavity of the first piston cylinder (5), a first pipeline (7) communicated with the first piston cylinder (5), an energy storage tank (8) communicated with the other end of the first pipeline (7), a second pipeline (9) communicated with the bottom of the energy storage tank (8), and a mechanical pressure reducing effect of oil pressure is realized through the pressure reducing assembly; The inner cavity of the pressure stabilizing box (4) is also provided with a pressure increasing assembly, which comprises a second piston cylinder (10) fixedly connected in the inner cavity of the pressure stabilizing box (4), a second piston plate (11) arranged in the inner cavity of the second piston cylinder (10), a third pipeline (12) communicated with one side of the second piston cylinder (10), and a fourth pipeline (13) communicated with the surface of the second piston cylinder (10), and a mechanical pressure increasing effect of oil pressure is realized through the pressure increasing assembly.

2. The hydraulic engine oil pressure stabilizing structure according to claim 1, characterized by: One side of the first piston plate (6) is fixedly connected with a first piston rod (14), the other end of the first piston rod (14) penetrates to the outside of the first piston cylinder (5) and is fixedly connected with a driving wheel (15), a first spring (16) is sleeved on the surface of the first piston rod (14), one end of the first spring (16) is fixedly connected with one side of the first piston plate (6), and the other end of the first spring (16) is fixedly connected with the inner cavity of the first piston cylinder (5).

3. The hydraulic engine oil pressure stabilizing structure according to claim 1, characterized by: One side of the second piston cylinder (10) is fixedly connected with a second piston rod (17), the other end of the second piston rod (17) penetrates to the outside of the second piston cylinder (10) and is fixedly connected with a driving block (18), a second spring (19) is sleeved on the surface of the second piston rod (17), one end of the second spring (19) is fixedly connected with one side of the second piston plate (11), and the other end of the second spring (19) is fixedly connected with the inner cavity of the second piston cylinder (10).

4. The hydraulic engine oil pressure stabilizing structure according to claim 1, characterized by: The inner cavity of the energy storage tank (8) is provided with a partition plate (20), one side of the partition plate (20) is fixedly connected with a third spring (21), one end of the third spring (21) is fixedly connected with a sealing block (22), and a through groove is formed in one side of the partition plate (20).

5. The hydraulic engine oil pressure stabilizing structure according to claim 4, characterized by: The number of the partition plates (20) is two, the inner cavity of the energy storage tank (8) is provided with a guide plate (23), and the number of the guide plates (23) is three.

6. The hydraulic engine oil pressure stabilizing structure according to claim 1, characterized by: One end of the second pipeline (9) is communicated with the surface of the fourth pipeline (13) through a three-way interface, the third pipeline (12) is communicated with the surface of the first piston cylinder (5), and the surfaces of the third pipeline (12) and the fourth pipeline (13) are both communicated with a check valve (24).

7. The hydraulic engine oil pressure stabilizing structure according to claim 1, characterized by: The surface of the first piston cylinder (5) is communicated with an oil inlet pipe, and the bottom of the first piston cylinder (5) is communicated with an oil outlet pipe.

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