A single cylinder hydraulic mechanism for precisely adjusting the supply of hydraulic oil

Abstract

The present application relates to the system with fluid action generally, more particularly to the hydraulic technology field, and disclose a kind of single-cylinder hydraulic mechanism of accurate adjustment hydraulic oil supply, including cylinder, the pressure regulating part is arranged in the cylinder, the buffer part is arranged on the pressure regulating part, the oil control part is connected on the buffer part, the oil inlet part is also connected on the pressure regulating part, the anti-vibration oil supplement part is installed on the cylinder, the pressure regulating part includes inner rod, the inner rod is arranged in cylinder, one end of the inner rod is fixedly connected with piston sheet, the inner rod is slidably connected in cylinder by piston sheet, oil port one is formed in the two sides of the piston sheet, the end of the cylinder is fixedly connected with sealing disc, the double buffering design of oil control part spring, buffer sheet, buffer part guide cover, sealing ring is adopted, vibration is reduced in cooperation with hydraulic damper, eliminate the impact and cavitation risk caused by oil flow rate mutation, protect sealing element and core component.

Description

Technical Field

[0001] This invention relates to systems generally operated by fluids, and more specifically to the field of hydraulic technology, specifically a single-cylinder hydraulic mechanism for precisely adjusting the supply of hydraulic oil. Background Technology

[0002] In the fields of industrial automation, precision equipment manufacturing, and special operation equipment, single-cylinder hydraulic mechanisms are widely used in linear drive, pressure control, and other scenarios due to their simple structure and stable power output. The operational stability and control accuracy of hydraulic mechanisms directly depend on the dynamic balance of hydraulic oil.

[0003] Traditional hydraulic oil replenishment schemes often employ fixed-value replenishment or pressure-triggered replenishment, relying solely on a single pressure sensor to detect system pressure. When the pressure falls below a threshold, the replenishment pump is activated to supply oil. However, in actual operating conditions, the demand for hydraulic oil is affected by multiple factors, including temperature, load fluctuations, and the frequency of actuator movement.

[0004] When a traditional replenishment system is started, there is a difference between the output pressure of the replenishment pump and the original pressure of the system. During the replenishment process, the oil flow rate changes suddenly, which can easily introduce air and cause cavitation, or trigger hydraulic shock, which can disrupt the original pressure balance of the system and cause instantaneous displacement deviation of the actuators.

[0005] For equipment operating under high loads, strong vibrations, and continuous crushing operations, the single-cylinder hydraulic mechanism must withstand instantaneous impact loads and system pressure fluctuations. The pressure response speed of traditional feed pumps is clearly insufficient to adapt to the load, and the vibration environment easily leads to sensor detection deviations, further amplifying feed interference problems and making it difficult to meet the requirements for stable operation. Therefore, a single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply is proposed to solve the aforementioned problems. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply. This solves the problems of traditional hydraulic oil supply schemes, which, due to their single pressure triggering, lack of pressure difference buffering design, and inability to adapt to high-load and strong vibration conditions, result in poor supply accuracy, cavitation and hydraulic shock, large sensor detection deviations, ultimately causing displacement deviations of actuators and unstable operation of the mechanism, thus failing to meet the operational requirements of precision equipment and high-load crushing equipment.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply, comprising a cylinder body, a pressure regulating part disposed within the cylinder body, a buffer part disposed on the pressure regulating part, an oil control part connected to the buffer part, an oil inlet part connected to the pressure regulating part, and an anti-vibration oil replenishment part installed on the cylinder body.

[0010] Preferably, the pressure regulating part includes an inner rod disposed in the cylinder body. One end of the inner rod is fixedly connected to a piston plate. The inner rod is slidably connected to the cylinder body through the piston plate. An oil port is provided on both sides of the piston plate. A sealing disc is fixedly connected to each end of the cylinder body. A pressure sensor is installed on the side of the sealing discs at the cylinder body ends that are close to each other. The other end of the inner rod slides through the sealing disc at the top of the cylinder body and extends to the outside of the cylinder body.

[0011] Preferably, one side of the cylinder is connected to an oil inlet pipe 1 and an oil inlet pipe 2, and the other side of the cylinder is connected to an oil outlet pipe 1 and an oil outlet pipe 2. The oil inlet pipe 1, the oil inlet pipe 2, the oil outlet pipe 1, and the oil outlet pipe 2 each correspond to one of the oil ports 1.

[0012] Preferably, the buffer part includes a chassis, which is fixedly connected to the top of the cylinder body. The through end of the inner rod continues to slide through the chassis and extend upward. A guide cover is fixedly connected to the chassis. A mounting flange is fixedly connected to the end of the inner rod. An equipment groove is opened on the mounting flange. A sealing ring is fixedly sleeved between the mounting flange and the inner rod. The sealing ring is slidably connected to the inner wall of the guide cover.

[0013] Preferably, an oil inlet pipe three is connected to one side of the guide cover, and an oil outlet pipe three is connected to the other side of the guide cover. An electromagnetic flow meter one and an electrically controlled pressure relief valve one are installed on the oil outlet pipe three. An oil outlet pipe four is also connected to the guide cover, and an electromagnetic flow meter two and a one-way valve two are installed on the oil outlet pipe four.

[0014] Preferably, the oil control unit includes an oil cylinder, one end of which is connected to an oil inlet pipe A, and the other end of which is connected to an oil inlet pipe B. Two buffer plates are slidably connected to the inner wall of the oil cylinder, and each buffer plate has an oil port II. Each buffer plate is elastically connected to the inner wall of the oil cylinder by a spring. An oil outlet pipe A and an oil outlet pipe B are connected to one side of the oil cylinder, and the oil outlet pipe A and the oil outlet pipe B correspond to the oil ports II on the two buffer plates, respectively.

[0015] Preferably, a reversing valve two is provided on the oil outlet pipe A and the oil outlet pipe B. The two oil inlet ends of the reversing valve two are respectively connected to the oil outlet pipe A and the oil outlet pipe B. An oil filling pipe is connected to the oil outlet end of the reversing valve two. The oil filling pipe is connected to the oil inlet pipe three. The oil inlet pipe A is connected to the oil outlet pipe one. The oil inlet pipe B is connected to the oil outlet pipe two.

[0016] Preferably, the oil inlet includes a base, on which an oil tank is mounted. A return oil pipe is connected to the oil tank and is connected to an outlet oil pipe. A housing and an oil pump are also mounted on the base. A microprocessor is installed inside the housing. The oil inlet of the oil pump is connected to the oil tank, and the oil outlet of the oil pump is connected to an oil injection pipe. A reversing valve is installed at the end of the oil injection pipe and is connected to the oil inlet of the reversing valve. Both outlets of the reversing valve are connected to oil pipes. The two oil pipes are respectively connected to an inlet oil pipe and an inlet oil pipe. An electromagnetic flowmeter is installed on each of the two oil pipes.

[0017] Preferably, the anti-vibration oil replenishment part includes a vibration damping cover, which is fixedly sleeved on the outer wall of the cylinder body. A base is fixedly connected to the bottom of the cylinder body, and a mounting pad is fixedly connected to the outer wall of the vibration damping cover. The oil cylinder is installed on the inner wall of the mounting pad. A groove is opened at the bottom of the vibration damping cover, and a hydraulic damper is installed in the groove. An oil pipe is connected between every two oil ports of the hydraulic damper.

[0018] Preferably, one of the hydraulic dampers has an oil outlet pipe five connected to its oil port, and a one-way valve one is installed at the end of the oil outlet pipe five. The oil outlet pipe five is connected to the oil outlet pipe three. The other hydraulic damper has an oil outlet pipe six connected to its oil port. An electromagnetic flow meter four and an electrically controlled pressure relief valve two are installed on the oil outlet pipe six. An oil replenishment pipe is connected to the oil outlet pipe six. One end of the oil replenishment pipe is installed with a one-way valve three, and the other end of the oil replenishment pipe is integrally connected to the oil injection pipe. The damping end of each hydraulic damper abuts against the base.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply, which has the following beneficial effects:

[0021] 1. This single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply adopts a double buffer design with oil control spring and buffer plate, and buffer guide cover and sealing ring. Combined with hydraulic damper vibration reduction, it eliminates the impact and cavitation risk caused by sudden changes in oil flow rate, and protects the seals and core components.

[0022] 2. This single-cylinder hydraulic mechanism for precise adjustment of hydraulic oil supply uses a vibration damper and a hydraulic damper to weaken vibration transmission, and the anti-vibration oil supply branch dynamically replenishes the oil loss caused by vibration, making it suitable for the continuous operation needs of high-load and strong-vibration equipment such as single-cylinder cone crushers.

[0023] 3. The single-cylinder hydraulic mechanism that precisely adjusts the hydraulic oil supply adopts multiple pressure relief valves and check valves to form a protective closed loop. In case of overpressure or leakage under abnormal working conditions, it can automatically alarm and shut down to avoid system damage; the oil circulation and cleaning design extends the service life of the equipment.

[0024] 4. This single-cylinder hydraulic mechanism, which precisely adjusts the hydraulic oil supply, uses a microprocessor to optimize and control parameters in real time to adapt to different load requirements; its modular structure layout allows for flexible application in various scenarios such as precision equipment and mining machinery, and it is easy to install and maintain.

[0025] 5. This single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply adopts a combination of multi-dimensional sensing detection and intelligent control to accurately match changes in working conditions such as temperature, load, and vibration, significantly reducing oil replenishment errors and ensuring the displacement accuracy of the actuator. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0028] Figure 3 This is a cross-sectional view of the cylinder body and guide shield of the present invention;

[0029] Figure 4 This is a schematic diagram of the external structure of the guide cover of the present invention;

[0030] Figure 5 This is a schematic diagram of the pressure sensor structure of the present invention. Figure 1 ;

[0031] Figure 6 This is a schematic diagram of the pressure sensor structure of the present invention. Figure 2 ;

[0032] Figure 7 This is a schematic diagram of the oil control part of the present invention;

[0033] Figure 8 This is a schematic diagram of the structure of the vibration damping cover of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the anti-vibration oil replenishment part of the present invention;

[0035] Figure 10 This is a schematic diagram of the oil inlet section of the present invention.

[0036] In the diagram: 1. Cylinder body; 2. Pressure regulating section; 21. Inner rod; 22. Piston plate; 23. Oil port one; 24. Sealing plate; 25. Pressure sensor; 26. Oil inlet pipe one; 27. Oil inlet pipe two; 28. Oil outlet pipe one; 29. ​​Oil outlet pipe two; 3. Buffer section; 31. Chassis; 32. Guide cover; 33. Mounting flange; 34. Equipment tank; 35. Sealing ring; 36. Oil inlet pipe three; 37. Oil outlet pipe three; 38. Electromagnetic flowmeter one; 39. Electrically controlled pressure relief valve one; 310. Oil outlet pipe four; 311. Electromagnetic flowmeter two; 312. One-way valve two; 4. Oil control section; 41. Oil cylinder; 42. Oil inlet pipe A; 43. Oil inlet pipe B; 44. Buffer section 45. Oil port 2; 46. Spring; 47. Oil outlet pipe A; 48. Oil outlet pipe B; 49. Reversing valve 2; 410. Filling pipe; 5. Oil inlet; 51. Machine base; 52. Oil tank; 53. Oil return pipe; 54. Machine casing; 55. Oil pump; 56. Oil injection pipe; 57. Reversing valve 1; 58. Oil circuit pipe; 59. Electromagnetic flowmeter 3; 6. Vibration-resistant oil replenishment part; 61. Vibration damping cover; 62. Base; 63. Mounting pad; 64. Hydraulic damper; 65. Oil passage pipe; 66. Oil outlet pipe 5; 67. Check valve 1; 68. Oil outlet pipe 6; 69. Electromagnetic flowmeter 4; 610. Electrically controlled pressure relief valve 2; 611. Oil replenishment pipe; 612. Check valve 3. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figure 1 - Figure 10 The present invention provides a single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply, including a cylinder body 1, a pressure regulating part 2 is provided inside the cylinder body 1, a buffer part 3 is provided on the pressure regulating part 2, an oil control part 4 is connected to the buffer part 3, an oil inlet part 5 is also connected to the pressure regulating part 2, and an anti-vibration oil replenishment part 6 is installed on the cylinder body 1.

[0039] In this invention, the pressure regulating unit 2 performs pressure regulation and linear drive functions, including an inner rod 21, which is disposed inside the cylinder body 1. One end of the inner rod 21 is fixedly connected to a piston plate 22, and the inner rod 21 is slidably connected to the cylinder body 1 through the piston plate 22. Oil ports 23 are provided on both sides of the piston plate 22. Sealing discs 24 are fixedly connected to the ends of the cylinder body 1. Pressure sensors 25 (model PT124B-218, range 0-40MPa, accuracy 0.2 grade) are installed on the adjacent sides of the sealing discs 24 at the ends of the cylinder body 1. (Protection level IP67) The other end of the inner rod 21 slides through the sealing disc 24 at the top of the cylinder body 1 and extends to the outside of the cylinder body 1. One side of the cylinder body 1 is connected to and installed with oil inlet pipe 1 26 and oil inlet pipe 27, and the other side of the cylinder body 1 is connected to and installed with oil outlet pipe 1 28 and oil outlet pipe 29. Oil inlet pipe 1 26, oil inlet pipe 27, oil outlet pipe 1 28 and oil outlet pipe 29 correspond to one of the oil ports 1 23 respectively. The piston plate 22 and the inner rod 21 are driven to move by the pressure change of the hydraulic oil, and the displacement accuracy is controlled in conjunction with the sensor.

[0040] Furthermore, the buffer unit 3 includes a chassis 31, which is fixedly connected to the top of the cylinder body 1. The through end of the inner rod 21 continues to slide through the chassis 31 and extend upward. A guide cover 32 is fixedly connected to the chassis 31. A mounting flange 33 is fixedly connected to the end of the inner rod 21. An equipment groove 34 is provided on the mounting flange 33. A sealing ring 35 is fixedly fitted between the mounting flange 33 and the inner rod 21 to ensure the guiding accuracy of the movement of the inner rod 21 and to achieve sealing inside the guide cover 32 to prevent leakage of buffer oil. The sealing ring 35 is slidably connected to the inner wall of the guide cover 32. One side of the guide cover 32 is connected to... An oil inlet pipe 36 is installed on one side of the guide cover 32, and an oil outlet pipe 37 is installed on the other side of the guide cover 32. An electromagnetic flow meter 38 (model MF-6-31.5, diameter 6mm, range 0-50L / min, accuracy ±0.5%) and an electrically controlled pressure relief valve 39 (model DBW10B-1-50 / 31.5CG24N9Z5L, electromagnetic relief valve) are installed on the oil outlet pipe 37. An oil outlet pipe 4 310 is also installed on the guide cover 32, and an electromagnetic flow meter 311 (same as MF-6-31.5) and a check valve 312 are installed on the oil outlet pipe 4 310.

[0041] In this embodiment, the oil control unit 4 and the buffer unit 3 form a double buffering mechanism, including an oil cylinder 41. One end of the oil cylinder 41 is connected to an oil inlet pipe A42, and the other end of the oil cylinder 41 is connected to an oil inlet pipe B43. Two buffer plates 44 are slidably connected to the inner wall of the oil cylinder 41. Each buffer plate 44 has an oil port 45. Each buffer plate 44 is elastically connected to the inner wall of the oil cylinder 41 by a spring 46 (model GB / T2089-2009, material 60Si2Mn). An oil outlet pipe A47 and an oil outlet pipe B48 are connected to one side of the oil cylinder 41. Oil outlet pipes A47 and B48 correspond to oil ports 45 on the two buffer plates 44 respectively. A reversing valve 49 (model DSG-01-3C2-D24, solenoid two-position three-way valve) is installed on oil outlet pipes A47 and B48. The two oil inlet ends of the reversing valve 49 are connected to oil outlet pipes A47 and B48 respectively. An oil filling pipe 410 is installed at the oil outlet end of the reversing valve 49. The oil filling pipe 410 is connected to the oil inlet pipe 36. The oil inlet pipe A42 is connected to the oil outlet pipe 28. The oil inlet pipe B43 is connected to the oil outlet pipe 29.

[0042] It is worth noting that the oil inlet 5, as the main oil supply unit of the mechanism, is responsible for providing stable and precise hydraulic oil to the cylinder 1. This includes a base 51, on which an oil tank 52 is mounted. A return oil pipe 53 is connected to the oil tank 52 and is connected to the oil outlet pipe 310. The base 51 also houses a housing 54 and an oil pump 55 (model CB-B10, gear pump, rated pressure 31.5MPa, flow rate 10L / min, speed 1450r / min). The housing 54 contains a microprocessor (model STM32H743VIT6, industrial-grade 32-bit MCU, 480MHz, supporting parallel processing of multi-sensor data). The oil inlet of the oil pump 55 is connected to the oil tank 52. The oil outlet of valve 55 is connected to an oil injection pipe 56. The end of the oil injection pipe 56 is equipped with a reversing valve 57 (model 24EI3-H6B-T electromagnetic two-position three-way reversing valve, 6mm diameter, rated pressure 31.5MPa, DC24V power supply) and is connected to the oil inlet of the reversing valve 57. Both oil outlets of the reversing valve 57 are connected to oil pipes 58 (same as MF-6-31.5 model). The two oil pipes 58 are connected to the oil inlet pipe 26 and the oil inlet pipe 27 respectively. Electromagnetic flow meters 59 are installed on both oil pipes 58. The microprocessor collects the detection data of all sensors in real time and continuously optimizes the control parameters through the built-in multivariate coupling algorithm (fusion of pressure, temperature, flow, vibration and other parameters).

[0043] It is worth noting that the vibration damping and oil replenishment unit 6 is specifically designed for high-load and strong vibration scenarios. Through the synergy of mechanical damping and dynamic oil replenishment, it offsets the impact of vibration on system stability. This includes a vibration damping cover 61 (material Q235, thickness 8mm, built-in rubber damping layer, Shore A50 hardness). The vibration damping cover 61 is fixedly fitted onto the outer wall of the cylinder body 1. A base 62 is fixedly connected to the bottom of the cylinder body 1. A mounting pad 63 is fixedly connected to the outer wall of the vibration damping cover 61. The hydraulic cylinder 41 is installed on the inner wall of the mounting pad 63. A groove is opened at the bottom of the vibration damping cover 61, and a hydraulic damper 64 (model YDN-10 / 31.5, rated pressure 31.5MPa, damping coefficient 0.8N・s / m) is installed in the groove. An oil pipe 65 is installed between the oil ports of every two hydraulic dampers 64. The oil outlet of the damper 64 is connected to an oil outlet pipe 5 66, and a one-way valve 1 67 (model S10P1-06) is installed at the end of the oil outlet pipe 5 66. The oil outlet pipe 5 66 is connected to the oil outlet pipe 3 37. The oil outlet of another hydraulic damper 64 is connected to an oil outlet pipe 68 (same as MF-6-31.5 model). An electromagnetic flow meter 4 69 and an electrically controlled pressure relief valve 2 610 (same as DBW10B-1-50 / 31.5CG24N9Z5L model) are installed on the oil outlet pipe 68. A replenishment pipe 611 is connected to the oil outlet pipe 68. A one-way valve 3 612 (same as S10P1-06 model) is installed at one end of the replenishment pipe 611. The other end of the replenishment pipe 611 is integrally connected to the oil injection pipe 56. The damping end of each hydraulic damper 64 abuts against the base 62.

[0044] Working principle:

[0045] The microprocessor built into chassis 54 is the control center of the entire mechanism. It collects comprehensive operating data through high-precision sensors distributed in various modules, providing real-time basis for precise control. The specific detection logic is as follows:

[0046] Pressure detection system: Pressure sensors 25 installed inside the sealing discs 24 at both ends of cylinder 1 monitor the hydraulic pressure of the chambers on both sides of piston plate 22 in real time. The sampling frequency reaches 100Hz, which can accurately capture the pressure fluctuation gradient and transmit the 4-20mA analog signal to the microprocessor, providing core data for pressure regulation and oil replenishment triggering.

[0047] The oil tank 52 installed on the base 51 stores hydraulic oil. The oil pump 55 draws oil from the oil tank 52 and delivers it to the reversing valve 57 via the oil injection pipe 56. The microprocessor switches the oil circuit according to the detection data of the pressure sensor 25. When the bottom chamber of the piston plate 22 needs oil supply, the reversing valve 57 switches to the oil inlet pipe 26; when the top chamber needs oil supply, it switches to the oil inlet pipe 27, ensuring that the oil is accurately delivered to the target chamber.

[0048] The electromagnetic flowmeter 59 on the oil line 58 provides real-time feedback on the main oil inlet flow rate. The microprocessor compares the detected value with the preset flow threshold (dynamically adjusted according to load requirements, ranging from 1-8 L / min), and adjusts the drive motor speed of the oil pump 55 through the PWM signal to achieve dynamic calibration of the oil inlet volume, avoiding pressure shock caused by excessive oil supply or power attenuation caused by insufficient oil supply.

[0049] Hydraulic oil supplied through inlet pipe 26 or inlet pipe 27 enters the corresponding chamber of cylinder 1 through port 23 on piston plate 22. The oil pressure acts on piston plate 22, generating axial thrust, which drives piston plate 22 to drive inner rod 21 to make linear motion. The through end of inner rod 21 is connected to an external actuator (such as a cone crusher discharge port adjustment mechanism) through mounting flange 33 to realize power output.

[0050] Pressure sensors 25 at both ends of cylinder 1 monitor the pressure difference on both sides of piston plate 22 in real time. The microprocessor adjusts the oil intake according to the preset pressure threshold (e.g., 10-31.5MPa, to suit the load requirements of the cone crusher).

[0051] Oil inside cylinder 1 flows into oil inlet pipe A42 and oil inlet pipe B43 of oil control section 4 through oil outlet pipe 1 28 and oil outlet pipe 29 respectively, and enters oil cylinder 41. The oil pushes the buffer plate 44 on the inner wall of oil cylinder 41 to compress spring 46. The elastic force of spring 46 counteracts the impact force of sudden change in oil flow rate, realizing the steady flow pretreatment of oil. At the same time, the oil is diverted to oil outlet pipe A47 or oil outlet pipe B48 through oil port 2 45 on buffer plate 44 to ensure smooth oil delivery.

[0052] The reversing valve 49 on oil outlet pipe A47 and oil outlet pipe B48 is controlled by a microprocessor to switch and deliver the stabilized oil through oil filling pipe 410 and oil inlet pipe 36 to guide cover 32. This provides auxiliary buffer oil for the movement of inner rod 21, fills the gap between guide cover 32 and sealing ring 35, absorbs the end impact of inner rod 21 during movement, and avoids mechanical wear and pressure fluctuations.

[0053] An electrically controlled pressure relief valve 39 is installed on the oil outlet pipe 37 on the other side of the guide cover 32. When the internal pressure of the guide cover 32 exceeds the preset threshold (such as 25MPa), the microprocessor controls the electrically controlled pressure relief valve 39 to open, quickly relieve excess pressure, and avoid excessive pressure of the buffer oil affecting the movement accuracy of the inner rod 21. At the same time, the electromagnetic flow meter 38 monitors the pressure relief flow in real time and provides feedback on the pressure regulation effect.

[0054] The vibration damping cover 61, which is fixedly fitted on the outer wall of the cylinder body 1, can reduce the transmission of external vibrations (such as 5-50Hz high-frequency vibrations during cone crusher operation) to the inside of the cylinder body 1, thus protecting the core components. Multiple (no fewer than four) hydraulic dampers 64 are installed in the groove at the bottom of the vibration damping cover 61. Their damping ends abut against the base 62. The vibration energy is absorbed by the viscous damping of the oil inside the damper, further reducing the vibration amplitude of the system and ensuring the detection accuracy of the sensor and the stability of the oil delivery.

[0055] Oil discharged due to overpressure in outlet pipe 37 is supplied to hydraulic damper 64 via outlet pipe 5 66. Check valve 1 67 on outlet pipe 5 66 prevents oil backflow. Pressure coordination of multiple dampers is achieved through oil supply pipe 65. When the vibration intensity of the system increases, the oil pressure inside hydraulic damper 64 fluctuates (exceeding 30MPa). Another hydraulic damper 64 automatically opens to release pressure through the electrically controlled pressure relief valve 2 610 on outlet pipe 68. Oil is supplied to oil injection pipe 56 via outlet pipe 68 and oil supply pipe 611. Check valve 3 612 on oil supply pipe 611 prevents backflow of main oil inlet, strengthens the oil supply of the main oil inlet system, and counteracts oil disturbance and pressure fluctuation caused by vibration.

[0056] The electromagnetic flowmeter 4 69 on the oil outlet pipe 68 monitors the anti-vibration oil replenishment flow in real time. The microprocessor dynamically adjusts the oil replenishment rate according to the vibration intensity (indirectly judged by the pressure change of the hydraulic damper 64) to ensure that the oil replenishment can not only offset the vibration effect, but also not interfere with the pressure balance of the main system due to excessive oil replenishment. The oil replenishment flow rate adjustment range is 0.5-3L / min.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply, comprising a cylinder body (1), characterized in that: The cylinder body (1) is provided with a pressure regulating part (2) for hydraulic pressure regulation. The pressure regulating part (2) is provided with a buffer part (3) for buffering hydraulic pressure impact and cavitation. The buffer part (3) includes a chassis (31). The chassis (31) is fixedly connected to the top of the cylinder body (1). A guide cover (32) is fixedly connected to the chassis (31). An oil inlet pipe (36) is connected to one side of the guide cover (32), and an oil outlet pipe (37) is connected to the other side of the guide cover (32). The buffer section (3) is connected to an oil control section (4) for precise replenishment of buffer oil. The oil control section (4) includes an oil cylinder (41). One end of the oil cylinder (41) is connected to an oil inlet pipe A (42), and the other end of the oil cylinder (41) is connected to an oil inlet pipe B (43). Two buffer plates (44) are slidably connected to the inner wall of the oil cylinder (41). Each of the two buffer plates (44) is provided with an oil port II (45). Each buffer plate (44) is elastically connected to the inner wall of the oil cylinder (41) with a spring (46). An oil outlet pipe A (47) and an oil outlet pipe B (48) are connected to one side of the oil cylinder (41). A reversing valve II (49) is provided on the oil outlet pipe A (47) and the oil outlet pipe B (48). An oil filling pipe (410) is connected to the oil outlet end of the reversing valve II (49). The oil filling pipe (410) is connected to the oil inlet pipe III (36). The pressure regulating unit (2) is also connected to an oil inlet unit (5) for precise control of oil inlet volume. The cylinder body (1) is equipped with an anti-vibration oil replenishing unit (6) for vibration damping and dynamic oil replenishment. The anti-vibration oil replenishing unit (6) includes a vibration damping cover (61). The vibration damping cover (61) is fixedly sleeved on the outer wall of the cylinder body (1). The bottom of the cylinder body (1) is fixedly connected to a base (62). The outer wall of the vibration damping cover (61) is fixedly connected to a mounting pad (63). The oil cylinder (41) is installed on the inner wall of the mounting pad (63). The bottom of the vibration damping cover (61) is provided with a groove. A hydraulic damper (64) is installed in the groove. An oil pipe (65) is connected between the oil ports of each pair of hydraulic dampers (64). An oil outlet pipe five (66) is connected to the oil port of one of the hydraulic dampers (64). The oil outlet pipe five (66) is connected to the oil outlet pipe three (37). The pressure regulating part (2) includes an inner rod (21), which is disposed inside the cylinder (1). One end of the inner rod (21) is fixedly connected to a piston plate (22). The inner rod (21) is slidably connected to the cylinder (1) through the piston plate (22). Oil ports (23) are provided on both sides of the piston plate (22). Sealing discs (24) are fixedly connected to the ends of the cylinder (1). Pressure sensors (25) are installed on the side of the sealing discs (24) at the ends of the cylinder (1) that are close to each other. The other end of the inner rod (21) slides through the sealing disc (24) at the top of the cylinder (1) and extends to the outside of the cylinder (1). One side of the cylinder body (1) is connected to an oil inlet pipe 1 (26) and an oil inlet pipe 2 (27), and the other side of the cylinder body (1) is connected to an oil outlet pipe 1 (28) and an oil outlet pipe 2 (29). The oil inlet pipe 1 (26), the oil inlet pipe 2 (27), the oil outlet pipe 1 (28) and the oil outlet pipe 2 (29) correspond to one of the oil ports 1 (23). The two inlet ends of the reversing valve 2 (49) are connected to the outlet pipe A (47) and the outlet pipe B (48) respectively. The inlet pipe A (42) is connected to the outlet pipe 1 (28), and the inlet pipe B (43) is connected to the outlet pipe 2 (29).

2. The single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply according to claim 1, characterized in that: The inner rod (21) continues to slide through the chassis (31) and extend upward. The end of the inner rod (21) is fixedly connected to a mounting flange (33). The mounting flange (33) has an equipment groove (34). A sealing ring (35) is fixedly sleeved between the mounting flange (33) and the inner rod (21). The sealing ring (35) is slidably connected to the inner wall of the guide cover (32).

3. The single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply according to claim 1, characterized in that: The oil outlet pipe three (37) is equipped with an electromagnetic flow meter one (38) and an electrically controlled pressure relief valve one (39). The guide cover (32) is also connected to an oil outlet pipe four (310). The oil outlet pipe four (310) is equipped with an electromagnetic flow meter two (311) and a one-way valve two (312).

4. The single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply according to claim 1, characterized in that: The oil outlet pipe A (47) and oil outlet pipe B (48) correspond to the oil port two (45) on the two buffer plates (44), respectively.

5. A single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply according to claim 3, characterized in that: The oil inlet section (5) includes a base (51), on which an oil tank (52) is mounted. A return oil pipe (53) is connected to the oil tank (52), and the return oil pipe (53) is connected to the oil outlet pipe (310). A housing (54) and an oil pump (55) are also mounted on the base (51). A microprocessor is installed inside the housing (54). The oil inlet end of the oil pump (55) is connected to the oil tank (52). (55) has an oil outlet end connected to an oil injection pipe (56). The end of the oil injection pipe (56) is provided with a reversing valve (57) and is connected to the oil inlet end of the reversing valve (57). Both oil outlet ends of the reversing valve (57) are connected to oil pipes (58). The two oil pipes (58) are respectively connected to the oil inlet pipe (26) and the oil inlet pipe (27). Both oil pipes (58) are equipped with electromagnetic flow meters (59).

6. A single-cylinder hydraulic mechanism for precisely adjusting hydraulic oil supply according to claim 5, characterized in that: One-way valve 1 (67) is installed at the end of the oil outlet pipe 5 (66). The oil port of another hydraulic damper (64) is connected to an oil outlet pipe 6 (68). An electromagnetic flow meter 4 (69) and an electrically controlled pressure relief valve 2 (610) are installed on the oil outlet pipe 6 (68). A replenishment pipe (611) is connected to the oil outlet pipe 6 (68). One-way valve 3 (612) is installed at one end of the replenishment pipe (611). The other end of the replenishment pipe (611) is integrally connected to the oil injection pipe (56). The damping end of each hydraulic damper (64) abuts against the base (62).

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