Energy accumulator for hydraulic spring operating mechanism of circuit breaker and working method thereof

Abstract

The invention discloses an energy accumulator for a hydraulic spring operating mechanism of a circuit breaker and a working method thereof, comprising a working cylinder and an energy storage piston cylinder; the working cylinder is provided with a working cylinder energy storage piston cylinder embedded cavity, a working cylinder low-pressure connecting oil passage, a working cylinder high-pressure oil cavity and a working cylinder low-pressure oil cavity, the working cylinder high-pressure and low-pressure oil cavity are connected, the working cylinder energy storage piston cylinder embedded cavity is connected with the working cylinder high-pressure oil cavity; the working cylinder low-pressure connecting oil passage is located at one side of the working cylinder energy storage piston cylinder embedded cavity, and the working cylinder low-pressure connecting oil passage is connected to one end of the working cylinder where the working cylinder low-pressure oil cavity is provided; the top of the energy storage piston cylinder is arranged inside the working cylinder energy storage piston cylinder embedded cavity, an energy storage piston is slidably connected inside the energy storage piston cylinder, the upper part of the energy storage piston is connected with the working cylinder energy storage piston cylinder embedded cavity, and an energy storage piston cylinder low-pressure connecting oil passage connected with the working cylinder low-pressure connecting oil passage is arranged on the energy storage piston cylinder; the bottom of the energy storage piston is connected with an energy storage disc spring assembly.

Description

Technical Field

[0001] The invention belongs to the field of circuit breakers and relates to an energy accumulator for a hydraulic spring operating mechanism of a circuit breaker and a working method thereof. Background Art

[0002] The energy storage module of the circuit breaker hydraulic spring operating mechanism is the energy storage component of the hydraulic spring operating mechanism, which is used to store the high-pressure oil required for the operation of the hydraulic spring operating mechanism. When the hydraulic spring operating mechanism is working, the high-pressure oil in the energy storage piston cylinder in the energy storage module is connected to the opening chamber or closing chamber of the working cylinder of the hydraulic operating mechanism, thereby realizing the opening and closing of the hydraulic spring operating mechanism.

[0003] The energy storage modules of existing hydraulic spring operating mechanisms are mostly energy storage springs that are directly pressed onto the working cylinder of the mechanism and become one with the working cylinder. The energy storage piston cylinder in the energy storage module is divided into multiple parts that are installed around the periphery of the working cylinder. This structure has high requirements on the strength and processing accuracy of the working cylinder, and there are many connections between the energy storage piston cylinder and the working cylinder, resulting in many risk points of oil leakage in the mechanism. In addition, if there is a problem with the energy storage spring and it needs to be replaced, all the peripheral modules of the mechanism need to be dismantled, which requires a lot of maintenance work. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an energy accumulator for a hydraulic spring operating mechanism of a circuit breaker and a working method thereof. On the one hand, the hydraulic spring operating mechanism can be made compact in structure, the number of energy storage piston cylinders of the hydraulic spring operating mechanism and the number of components such as the leakage connecting pipe connecting the energy storage piston cylinder and the working cylinder are reduced, the oil leakage points of the hydraulic spring operating mechanism are reduced, and the reliability of the hydraulic spring operating mechanism is improved. On the other hand, the energy storage module is assembled independently, which reduces the difficulty of processing the working cylinder and reduces the difficulty and cost of overhauling the hydraulic spring operating mechanism.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An energy accumulator for a hydraulic spring operating mechanism of a circuit breaker, comprising a working cylinder and an energy storage piston cylinder;

[0007] The working cylinder is provided with a working cylinder energy storage piston cylinder embedded cavity, a working cylinder low-pressure connecting oil passage, a working cylinder high-pressure oil chamber and a working cylinder low-pressure oil chamber. The working cylinder high-pressure oil chamber and the working cylinder low-pressure oil chamber are respectively located at two ends of the axial direction of the working cylinder. The working cylinder high-pressure oil chamber and the working cylinder low-pressure oil chamber are connected by a working cavity of a hydraulic operating mechanism. The working cylinder energy storage piston cylinder embedded cavity is connected with the working cylinder high-pressure oil chamber; the working cylinder low-pressure connecting oil passage is located on one side of the working cylinder energy storage piston cylinder embedded cavity, and the working cylinder low-pressure connecting oil passage is connected to one end of the working cylinder where the working cylinder low-pressure oil chamber is set;

[0008] The top of the energy storage piston cylinder is arranged inside the embedded cavity of the energy storage piston cylinder of the working cylinder, and an energy storage piston is slidably connected in the energy storage piston cylinder. The top of the energy storage piston is a T-shaped structure, and the upper part of the energy storage piston is connected to the embedded cavity of the energy storage piston cylinder of the working cylinder. A low-pressure connecting oil passage of the energy storage piston cylinder is arranged on the energy storage piston cylinder, and one end of the low-pressure connecting oil passage of the energy storage piston cylinder is connected to the bottom of the inner wall of the energy storage piston cylinder, and the other end is connected to the low-pressure connecting oil passage of the working cylinder;

[0009] The bottom of the energy storage piston is connected with an energy storage disc spring assembly.

[0010] Preferably, an annular groove is provided on the top outer wall of the energy storage piston cylinder, and an energy storage piston cylinder outer wall seal is provided in the annular groove.

[0011] Preferably, the energy storage piston cylinder low-pressure connecting oil passage is parallel to the energy storage piston, and an energy storage piston cylinder low-pressure inclined oil passage is provided between the energy storage piston cylinder low-pressure connecting oil passage and the bottom of the inner wall of the energy storage piston cylinder.

[0012] Preferably, the low-pressure connecting oil channel of the working cylinder is parallel to the working chamber of the hydraulic operating mechanism, the low-pressure connecting oil channel of the working cylinder is connected to the outside of the working cylinder, the low-pressure oil channel of the working cylinder is parallel to the embedded cavity of the energy storage piston cylinder of the working cylinder, and the low-pressure oil channel of the working cylinder and the low-pressure connecting oil channel of the energy storage piston cylinder are connected by a low-pressure oil channel connecting pipe.

[0013] Furthermore, a step hole is provided at the bottom of the low-pressure oil passage of the working cylinder and the top of the low-pressure connecting oil passage of the energy storage piston cylinder, and the inner diameter of the step hole is the same as the outer diameter of the low-pressure oil passage connecting pipe.

[0014] Preferably, the working cylinder energy storage piston cylinder embedded cavity is connected to the working cylinder high-pressure oil chamber through a working cylinder high-pressure oil channel, and the working cylinder high-pressure oil channel is parallel to the working chamber of the hydraulic operating mechanism.

[0015] Preferably, the top of the energy storage piston cylinder is circular.

[0016] Preferably, the energy storage disc spring assembly includes a connecting flange, an upper support plate, an energy storage disc spring and a lower support; the connecting flange is fixedly connected to the bottom of the energy storage piston cylinder, the upper support plate and the lower support are located below the connecting flange, the bottom of the energy storage piston is connected to the top of the upper support plate, and the two ends of the energy storage disc spring are respectively connected to the bottom of the upper support plate and the top of the lower support.

[0017] Preferably, a pull rod is provided between the upper support plate and the lower support, the top end of the pull rod is slidably connected to the upper support plate, the bottom end of the pull rod is fixedly connected to the lower support, and the energy storage disc spring is slidably nested on the pull rod.

[0018] A working method of an energy accumulator for a hydraulic spring operating mechanism of a circuit breaker based on any one of the above, comprising the following process:

[0019] When the hydraulic spring operating mechanism needs to store energy, the high-pressure oil in the cavity above the energy storage piston pushes the energy storage piston downward, thereby compressing the energy storage disc spring assembly to store energy. When the hydraulic spring mechanism needs the accumulator to release energy, the energy storage disc spring assembly releases energy, pushing the energy storage piston upward, and the high-pressure oil in the cavity above the energy storage piston enters the working cylinder to provide the energy required for the hydraulic spring mechanism to work.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention utilizes space effectively and increases the compactness of the hydraulic operating mechanism through the embedded assembly of the energy storage piston cylinder and the working cylinder in the energy storage module; the energy storage piston cylinder is embedded in the energy storage cavity of the working cylinder, and the output of the high-pressure oil of the energy storage cylinder is realized through the oil channel directly processed in the energy storage cavity of the working cylinder, without the need to connect pipelines, thus reducing the connection parts and oil leakage points and improving the reliability of the hydraulic operating mechanism; the energy storage module is assembled independently, which reduces the maintenance difficulty and maintenance cost of the hydraulic spring operating mechanism; compared with the same type of mechanism, the energy storage piston cylinder and the working cylinder are separated, which reduces the machining difficulty and machining cycle of the working cylinder, improves the processability of the mechanism working cylinder machining, and makes the hydraulic spring operating mechanism easier to realize batch and automatic production. At the same time, when any one of the mechanism working cylinder or the energy storage piston cylinder has a problem, they can be repaired separately, thus reducing the maintenance cost.

[0022] Furthermore, the energy storage piston cylinder has a cylindrical shape and the cavity in the center of which the energy storage piston is installed is a through hole. It is easier to process than the energy storage piston cylinder in other hydraulic spring operating mechanisms that has a square shape and a blind hole cavity for installing the energy storage piston. High-precision grinding of the cavity of the energy storage piston cylinder is easier to achieve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of assembling the mechanism energy storage module and the working cylinder of the present invention;

[0024] Figure 2 It is a schematic diagram of assembling the energy storage piston cylinder assembly of the present invention;

[0025] Figure 3 It is a schematic diagram of assembling the energy storage disc spring assembly of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal structure of the working cylinder of the present invention;

[0027] Figure 5 It is a schematic diagram of the overall assembly of the present invention.

[0028] Among them: 1. working cylinder; 2. energy storage piston cylinder; 3. energy storage piston cover; 30. energy storage piston cylinder assembly; 31. energy storage disc spring assembly; 4. energy storage piston; 5. connecting flange; 6. upper support plate; 7. energy storage disc spring; 8. pull rod; 9. lower support; 10. mechanism energy storage high-pressure oil chamber; 11. mechanism energy storage module low-pressure return oil chamber; 12. energy storage piston cylinder low-pressure inclined oil channel; 13. energy storage piston cylinder low-pressure connecting oil channel; 14. low-pressure oil channel connecting pipe; 15. working cylinder low-pressure connecting oil channel; 16. working cylinder high-pressure oil channel; 17. working cylinder high-pressure oil chamber; 18. hydraulic spring operating mechanism low-pressure oil chamber; 19. energy storage piston cylinder outer wall seal 20. energy storage piston cylinder assembly high-pressure chamber; 21. Working cylinder energy storage piston cylinder embedded in the cavity; 22. Working cylinder low-pressure oil chamber; 23. Nut; 24. Hydraulic operating mechanism working chamber; 25. Working cylinder low-pressure oil channel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker of the present invention comprises a working cylinder 1 and a mechanism energy storage module.

[0033] like Figure 1 , Figure 2 , Figure 3 As shown, the mechanism energy storage module is composed of an energy storage piston cylinder assembly 30 and an energy storage disc spring assembly 31 which are independently assembled.

[0034] like Figure 2As shown, the energy storage piston cylinder assembly 30 includes an energy storage piston cylinder 2, an energy storage piston 4, an energy storage piston cover 3 and a seal 19, which can be packaged independently. The energy storage piston cylinder 2 has a T-shaped stepped cylinder shape, the top diameter of the energy storage piston cylinder 2 is smaller than its bottom diameter, the center of the energy storage piston cylinder 2 is a through hole, the energy storage piston 4 is slidably installed in the through hole, and a high-pressure chamber 20 of the energy storage piston cylinder assembly is formed above the energy storage piston 4 in the through hole. The stepped end face with a large outer diameter of the energy storage piston cylinder 2 is equipped with an energy storage piston cover 3, the energy storage piston 4 passes through the energy storage piston cover 3, the top of the energy storage piston 4 is a T-shaped structure, and a low-pressure oil return chamber 11 of the mechanism energy storage module is formed between the large head end of the energy storage piston 4 and the energy storage piston cover 3.

[0035] Two rectangular grooves are processed on the stepped outer wall with a small outer diameter of the energy storage piston cylinder 2, and the energy storage piston cylinder outer wall seals 19 are installed in the grooves.

[0036] A low-pressure inclined oil passage 12 of the energy storage piston cylinder is provided on the inner wall of the bottom of the energy storage piston cylinder 2. The low-pressure inclined oil passage 12 of the energy storage piston cylinder is connected to a low-pressure connecting oil passage 13 vertically processed in the outer wall of the energy storage piston cylinder 2 where the diameter is larger. When the energy storage piston cylinder 2 is working, the energy storage piston 4 reciprocates in the inner hole of the energy storage piston cylinder 2.

[0037] like Figure 3 As shown, the energy storage module energy storage disc spring assembly 31 is assembled by a connecting flange 5, an upper support plate 6, a pull rod 8, an energy storage disc spring 7, and a lower support 9. The connecting flange 5 is fixedly connected to the bottom of the energy storage piston cover 3, the upper support plate 6 and the lower support 9 are located below the connecting flange 5, the bottom of the energy storage piston 4 is connected to the top of the upper support plate 6, the two ends of the energy storage disc spring 7 are respectively connected to the bottom of the upper support plate 6 and the top of the lower support 9, a number of pull rods 8 pass through the upper support plate 6, the energy storage disc spring 7 and the lower support 9 and are locked by nuts 23, the top of the pull rod 8 is slidably connected to the upper support plate 6, and the energy storage disc spring 7 is slidably nested on the pull rod 8.

[0038] like Figure 4As shown, the hydraulic spring operating mechanism working cylinder 1 of the present invention is a rectangular parallelepiped, and a working cylinder high-pressure oil chamber 17, a hydraulic operating mechanism working chamber 24 and a working cylinder low-pressure oil chamber 22 are processed along the axis direction of the rectangular parallelepiped. A working cylinder energy storage piston cylinder embedded cavity 21 is processed perpendicular to the hydraulic operating mechanism working chamber 24 on one of the radial surfaces of the working cylinder 1, and a working cylinder high-pressure oil channel 16 is processed at the bottom of the working cylinder energy storage piston cylinder embedded cavity 21 in parallel with the direction of the hydraulic operating mechanism working chamber 24. The working cylinder high-pressure oil channel 16 is processed in the working cylinder high-pressure oil channel 16. 6 connects the working cylinder energy storage piston cylinder embedded cavity 21 and the working cylinder high-pressure oil cavity 17, and a working cylinder low-pressure oil passage 25 is processed on the outside of the working cylinder energy storage piston cylinder embedded cavity 21 parallel to the direction of the working cylinder energy storage piston cylinder embedded cavity 21, and a working cylinder low-pressure connecting oil passage 15 is processed on the outside of the working cylinder energy storage piston cylinder embedded cavity 21 perpendicular to the direction of the working cylinder energy storage piston cylinder embedded cavity 21, one end of the working cylinder low-pressure connecting oil passage 15 is connected to the working cylinder low-pressure oil cavity 22, and the other end is vertically connected to the working cylinder low-pressure oil passage 25.

[0039] like Figure 5 , Figure 4 As shown, when the energy storage piston cylinder assembly 30 and the working cylinder 1 are assembled, the step with a small outer diameter of the energy storage piston cylinder 2 is directly embedded in the energy storage piston cylinder embedding cavity 21 of the working cylinder, and the energy storage piston cylinder embedding cavity 21 of the working cylinder is connected with the high-pressure cavity 20 of the energy storage piston cylinder assembly to form a mechanism energy storage high-pressure oil cavity 10, and the high-pressure oil in the mechanism energy storage high-pressure oil cavity 10 can directly enter the working cylinder high-pressure oil cavity 17 through the working cylinder high-pressure oil passage 16, and the energy storage piston cylinder low-pressure connecting oil passage 13 and the working cylinder low-pressure oil passage 25 are connected through the low-pressure oil passage connecting pipe 14, and when the hydraulic spring operating mechanism energy storage module stores energy, the low-pressure oil in the low-pressure return oil cavity 11 of the mechanism energy storage module flows back to the hydraulic spring operating mechanism low-pressure oil cavity 18 through the energy storage piston cylinder low-pressure inclined oil passage 12, the energy storage piston cylinder low-pressure connecting oil passage 13, the low-pressure oil passage connecting pipe 14, the working cylinder low-pressure oil passage 25, and the working cylinder low-pressure connecting oil passage 15 in turn.

[0040] The bottom of the working cylinder low-pressure oil passage 25 and the top of the energy storage piston cylinder low-pressure connecting oil passage 13 are both provided with step holes, and the inner diameter of the step hole is the same as the outer diameter of the low-pressure oil passage connecting pipe 14.

[0041] like Figure 1 , Figure 5 As shown, when the energy storage module of the hydraulic spring operating mechanism stores energy, the high-pressure oil in the energy storage high-pressure oil chamber 10 of the mechanism pushes the energy storage piston 4 to move downward, and the energy storage piston 4 pushes the upper support plate 6 to move downward, thereby compressing the energy storage disc spring 7 to store energy. When the hydraulic spring mechanism needs the energy accumulator to release energy, the energy storage disc spring 7 releases energy, pushing the upper support plate 6 and the energy storage piston 4 to move upward, and the high-pressure oil in the energy storage high-pressure oil chamber 10 of the mechanism enters the working cylinder 1 to provide the energy required for the hydraulic spring mechanism to work.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but rather with reference to the foregoing claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended to be a waiver of such subject matter, nor should it be considered that the applicant has not considered such subject matter to be part of the disclosed inventive subject matter.

Claims

1. An energy accumulator for a hydraulic spring operating mechanism of a circuit breaker, characterized in that: It comprises a working cylinder (1) and an energy storage piston cylinder (2); The working cylinder (1) is provided with a working cylinder energy storage piston cylinder embedded cavity (21), a working cylinder low-pressure connecting oil passage (15), a working cylinder high-pressure oil chamber (17) and a working cylinder low-pressure oil chamber (22); the working cylinder high-pressure oil chamber (17) and the working cylinder low-pressure oil chamber (22) are respectively located at two axial ends of the working cylinder (1); the working cylinder high-pressure oil chamber (17) and the working cylinder low-pressure oil chamber (22) are connected by a hydraulic operating mechanism working chamber (24); the working cylinder energy storage piston cylinder embedded cavity (21) is connected to the working cylinder high-pressure oil chamber (17); the working cylinder low-pressure connecting oil passage (15) is located on one side of the working cylinder energy storage piston cylinder embedded cavity (21); the working cylinder low-pressure connecting oil passage (15) is connected to one end of the working cylinder (1) where the working cylinder low-pressure oil chamber (22) is provided; The top of the energy storage piston cylinder (2) is arranged inside the working cylinder energy storage piston cylinder embedded cavity (21), the energy storage piston (4) is slidably connected inside the energy storage piston cylinder (2), the top of the energy storage piston (4) is a T-shaped structure, the upper part of the energy storage piston (4) is connected to the working cylinder energy storage piston cylinder embedded cavity (21), and the energy storage piston cylinder low-pressure connecting oil passage (13) is arranged on the energy storage piston cylinder (2), one end of the energy storage piston cylinder low-pressure connecting oil passage (13) is connected to the bottom of the inner wall of the energy storage piston cylinder (2), and the other end is connected to the working cylinder low-pressure connecting oil passage (15); The bottom of the energy storage piston (4) is connected to an energy storage disc spring assembly (31).

2. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: The top outer wall of the energy storage piston cylinder (2) is provided with an annular groove, and an energy storage piston cylinder outer wall sealing member (19) is provided in the annular groove.

3. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: The energy storage piston cylinder low-pressure connecting oil passage (13) is parallel to the energy storage piston (4), and an energy storage piston cylinder low-pressure inclined oil passage (12) is provided between the energy storage piston cylinder low-pressure connecting oil passage (13) and the bottom of the inner wall of the energy storage piston cylinder (2).

4. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: The working cylinder low-pressure connecting oil passage (15) is parallel to the working chamber (24) of the hydraulic operating mechanism, the working cylinder low-pressure connecting oil passage (15) is connected to the outside of the working cylinder (1), the working cylinder low-pressure connecting oil passage (25) is parallel to the working cylinder energy storage piston cylinder embedded chamber (21), and the working cylinder low-pressure connecting oil passage (25) is connected to the energy storage piston cylinder low-pressure connecting oil passage (13) by a low-pressure oil passage connecting pipe (14).

5. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 4, characterized in that: The bottom of the working cylinder low-pressure oil passage (25) and the top of the energy storage piston cylinder low-pressure connecting oil passage (13) are both provided with step holes, and the inner diameter of the step holes is the same as the outer diameter of the low-pressure oil passage connecting pipe (14).

6. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: The working cylinder energy storage piston cylinder embedded cavity (21) is communicated with the working cylinder high pressure oil chamber (17) through the working cylinder high pressure oil passage (16), and the working cylinder high pressure oil passage (16) is parallel to the hydraulic operating mechanism working chamber (24).

7. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: The top of the energy storage piston cylinder (2) is round.

8. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: The energy storage disc spring assembly (31) comprises a connecting flange (5), an upper support plate (6), an energy storage disc spring (7) and a lower support (9); the connecting flange (5) is fixedly connected to the bottom of the energy storage piston cylinder (2), the upper support plate (6) and the lower support (9) are located below the connecting flange (5), the bottom of the energy storage piston (4) is connected to the top of the upper support plate (6), and the two ends of the energy storage disc spring (7) are respectively connected to the bottom of the upper support plate (6) and the top of the lower support (9).

9. The energy accumulator for the hydraulic spring operating mechanism of a circuit breaker according to claim 1, characterized in that: A pull rod (8) is provided between the upper support plate (6) and the lower support (9); the top end of the pull rod (8) is slidably connected to the upper support plate (6), the bottom end of the pull rod (8) is fixedly connected to the lower support (9), and the energy storage disc spring (7) is slidably nested on the pull rod (8).

10. A working method of an energy accumulator for a circuit breaker hydraulic spring operating mechanism according to any one of claims 1 to 9, characterized in that: The process includes: When the hydraulic spring operating mechanism needs to store energy, the high-pressure oil in the cavity above the energy storage piston (4) pushes the energy storage piston (4) to move downward, thereby compressing the energy storage disc spring assembly (31) to store energy. When the hydraulic spring mechanism needs the energy accumulator to release energy, the energy storage disc spring assembly (31) releases energy, pushing the energy storage piston (4) to move upward, and the high-pressure oil in the cavity above the energy storage piston (4) enters the working cylinder (1) to provide the energy required for the hydraulic spring mechanism to work.

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