A three-ring speed reducer self-balancing suspension type flexible elastic support device

Abstract

This invention discloses a self-balancing suspension type flexible elastic support device for a three-ring reducer, belonging to the technical field of reducer support devices. It includes a suspension main beam, support plate, pendulum suspension rope, gravity pendulum, reference transfer disc, reference support column, hydrostatic support cylinder, hydrostatic piston, piston rod, pressure equalization oil tank, elastic sealing diaphragm, third spring, pressure equalization connecting pipe, and elastic buffer assembly. The gravity pendulum provides a real-time horizontal reference, and in conjunction with the hydraulic pressure equalization and diaphragm spring compensation mechanism, the load at the four support points is automatically redistributed. It can instantly respond to long-term operational drift such as foundation settlement, temperature deformation, and gear wear, dynamically maintaining the support plate level without stopping the machine, completely eliminating repeated manual intervention. Simultaneously, the elastic buffer assembly and side cylinder buffer structure effectively absorb vibration impacts, preventing anchor bolt loosening and shell cracking, significantly improving equipment operational stability, and extending the service life of bearings and gears.

Description

Technical Field

[0001] This invention relates to the field of speed reducer support device technology, and in particular to a self-balancing suspension type flexible elastic support device for a three-ring speed reducer. Background Technology

[0002] The three-ring reducer is based on the involute planetary transmission principle with small tooth difference, and has significant advantages such as small size, light weight, high load-bearing capacity, and high transmission efficiency. Therefore, it is widely used in transmission systems in industries such as metallurgy, mining, building materials, and petrochemicals. However, this reducer has extremely strict requirements for installation levelness, and horizontal deviation will directly affect the meshing accuracy of its internal gears and its operational stability.

[0003] Most existing technologies use counterweights to assist in leveling, and then lock the support plate simultaneously through four sets of leveling support structures to keep the support plate in a horizontal state. However, after static locking, the platform cannot respond to subsequent changes. As the three-ring reducer operates for a long time, factors such as foundation settlement, temperature changes, and gear wear will continuously disrupt the original horizontal state. The rigid support after locking cannot adjust adaptively and requires manual readjustment after stopping the machine. Therefore, there is an urgent need for improvement. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a self-balancing suspension flexible elastic support device for a three-ring reducer, which aims to solve the technical problem that the device cannot adapt to foundation settlement, temperature deformation and gear wear after static locking, and requires manual readjustment after shutdown.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A self-balancing suspension flexible elastic support device for a three-ring reducer includes a suspension main beam and a support plate, and further includes: The pendulum suspension rope is fixed at one end to the center of the main suspension beam. A gravity pendulum is fixedly mounted at the other end of the pendulum suspension rope; The reference transfer disk is located below the gravity pendulum and is spherically hinged to the bottom of the gravity pendulum. There are four reference supports, which are fixedly installed at the four corners of the reference transfer disk. There are four static pressure support cylinders, which are fixedly installed on the upper end face of the support plate. The static pressure piston is slidably disposed in the static pressure support cylinder, dividing the internal space of the static pressure support cylinder into an upper chamber and a lower chamber; The piston rod is fixed at one end to the upper end of the hydrostatic piston, and the other end is fixedly connected to the bottom end of the reference support. Two equalizing oil tanks are provided, and the two equalizing oil tanks are symmetrically fixed on the support plate; An elastic sealing membrane is fixedly installed on the inner wall of the pressure equalization oil storage tank at its edges, forming an oil storage cavity with the inner wall of the pressure equalization oil storage tank; The third spring is installed inside the pressure equalization oil tank, with one end fixedly connected to the center of the top of the pressure equalization oil tank and the other end fixedly connected to the center of the top of the elastic sealing membrane. The equalizing connecting pipe is installed between the static pressure support cylinder and the equalizing oil tank. It is used to connect the lower chambers of the four static pressure support cylinders to the oil storage chambers of the two equalizing oil tanks respectively, so that each lower chamber and the oil storage chamber form a closed liquid circuit that is interconnected. An elastic buffer assembly is installed between the suspension main beam and the support plate.

[0006] Preferably, the elastic buffer assembly includes: There are four upper rotating support rods. The top of the four upper rotating support rods are spherically hinged at the four corners of the suspension main beam, and the bottom of the upper rotating support rods is provided with a limit groove. There are four lower rotating support rods. The bottom ends of the four lower rotating support rods are spherically hinged at the four corners of the support plate and are slidably connected to the upper rotating support rods. The first spring is set in the limiting groove, with one end fixedly connected to the top of the limiting groove in the upper rotating support rod and the other end fixedly connected to the lower rotating support rod.

[0007] Preferably, a pendulum limiting cover is provided at the lower center of the main suspension beam. The pendulum limiting cover is a cylindrical structure with an open lower end. An elastic buffer layer is provided on the inner wall of the pendulum limiting cover to limit the maximum swing offset of the gravity pendulum in the horizontal direction.

[0008] Preferably, the internal space of the pressure equalization oil tank is divided into an oil storage chamber and an air compensation chamber by an elastic sealing membrane. A third spring is disposed in the air compensation chamber and is in a compressed state, applying a preload force to the elastic sealing membrane in the direction of the oil storage chamber.

[0009] Preferably, there are six equalizing connecting pipes, of which four equalizing connecting pipes connect the lower chambers of the four static pressure support cylinders to the oil storage chambers of the nearest equalizing oil storage tank, and the other two equalizing connecting pipes connect the lower chambers of the two static pressure support cylinders to each other, forming a fully connected equalizing network.

[0010] Preferably, a second spring is provided at the bottom end of the reference support column. One end of the second spring is fixedly connected to the bottom end of the reference support column, and the other end is fixedly connected to the hydrostatic support cylinder. There are four second springs, each corresponding to one of the four reference supports.

[0011] Preferably, the top of the hydrostatic support cylinder is provided with an isolation and protection slide cover, which is slidably connected to the reference support column to isolate and protect the second spring.

[0012] Preferably, the support plate is provided with side cylinders, four side cylinders are provided and fixedly installed on the support plate, and a lifting piston and a fourth spring are provided inside the side cylinders. One end of the fourth spring is fixedly connected to the bottom of the side cylinder and the other end is fixedly connected to the bottom of the lifting piston. A connecting pipe is provided on the upper chamber of the static pressure support cylinder. One end of the connecting pipe is connected to the inside of the side cylinder and the other end is connected to the upper chamber of the static pressure support cylinder.

[0013] Preferably, the limiting slide groove has a circular cross-section and an enlarged diameter section at the upper end. The lower rotating support rod is correspondingly arranged with the limiting slide groove, and the sliding end of the lower rotating support rod is provided with a limiting part that is adapted to the enlarged diameter section. The limiting part is embedded in the enlarged diameter section to limit the extreme position of the lower rotating support rod's axial reciprocating movement along the limiting slide groove.

[0014] Preferably, the hydrostatic support cylinder is provided with a sealing ring, and the sealing ring is located between the piston rod and the hydrostatic support cylinder.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: A constant horizontal reference is provided by a gravity pendulum and a reference transfer plate. The closed hydraulic circuit consisting of a hydrostatic support cylinder, a pressure equalization oil tank, and a third spring enables automatic redistribution of loads at each support point. At the same time, the expansion and contraction damping of the upper and lower rotating support rods and the first spring in the elastic buffer assembly absorbs multi-directional vibrations. The lifting piston in the side cylinder and the fourth spring buffer pressure changes in the buffer circuit. The whole system can achieve real-time dynamic leveling without stopping the machine, adaptive compensation for foundation settlement and temperature deformation, and effective isolation of vibration impacts. This significantly improves the stability of equipment operation and extends the service life of bearings and gears. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a self-balancing suspension flexible elastic support device for a three-ring reducer is shown. Figure 2 It shows Figure 1 Side view sectional view; Figure 3 It shows Figure 1 A frontal sectional view; Figure 4 It shows Figure 3 A magnified view of a section at point A in the middle; Figure 5 It shows Figure 1 Side view sectional view; Figure 6 It shows Figure 5 Explosion diagram of a local three-dimensional structure; Figure 7 It shows Figure 1 A partial three-dimensional structural diagram.

[0017] Legend: 1. Suspension beam; 2. Support plate; 3. Pendulum suspension rope; 4. Gravity pendulum; 5. Reference transfer plate; 6. Reference support column; 7. Static pressure support cylinder; 8. Static pressure piston; 81. Piston rod; 9. Upper chamber; 10. Lower chamber; 11. Pressure equalizing oil tank; 12. Elastic sealing membrane; 13. Oil storage chamber; 14. Third spring; 15. Pressure equalizing connecting pipe; 16. Upper rotating support rod; 17. Limiting slide groove; 18. Lower rotating support rod; 19. First spring; 20. Pendulum limiting cover; 21. Elastic buffer layer; 22. Air compensation chamber; 23. Second spring; 24. Isolation protection slide cover; 25. Side cylinder; 26. Lifting piston; 27. Fourth spring; 28. Connecting pipe; 29. ​​Sealing ring. Detailed Implementation

[0018] Reference Figures 1 to 7 The present invention provides a further description of an embodiment of a self-balancing suspension flexible elastic support device for a three-ring reducer.

[0019] A self-balancing suspension flexible elastic support device for a three-ring reducer includes a suspension main beam 1 and a support plate 2, and further includes: Reference Figure 1 , Figure 5 and Figure 7 As a preferred embodiment, one end of the pendulum suspension rope 3 is fixedly set at the center of the suspension main beam 1. The gravity pendulum 4 is fixedly installed at the other end of the pendulum suspension rope 3; The reference transfer disk 5 is located below the gravity pendulum 4 and is connected to the bottom of the gravity pendulum 4 by a spherical hinge. It should be noted that the gravity pendulum 4 utilizes its own mass to naturally hang in the gravitational field, thus forming an absolute horizontal attitude sensor. When the support plate 2 or the suspension main beam 1 tilts, the pendulum lags behind the structural motion due to inertia, maintaining its spatial orientation. The spherical hinge structure at its bottom transmits this "non-rotating" vertical reference to the reference transfer disk 5, providing the entire dynamic leveling system with a rigid spatial reference system that is not affected by mechanical vibration and foundation deformation, fundamentally replacing the traditional method that relies on manual visual inspection or external sensors.

[0020] Reference Figure 5In a preferred embodiment, a pendulum limiting cover 20 is provided at the lower center of the main suspension beam 1. The pendulum limiting cover 20 is a cylindrical structure with an open lower end, and an elastic buffer layer 21 is provided on the inner wall of the pendulum limiting cover 20 to limit the maximum swing offset of the gravity pendulum 4 in the horizontal direction. It should be noted that the pendulum limiting cover 20 is not a rigid constraint; the elastic buffer layer 21 attached to its inner wall has a specific gap reserved in the horizontal direction. When a sudden impact or violent swing causes the pendulum to swing too large an angle, the buffer layer will contact the pendulum, absorb the impact energy through elastic deformation, and limit the maximum offset. This ensures the free vertical direction of the pendulum under normal working conditions and prevents rigid impact damage caused by the pendulum hitting the cover under extreme working conditions, thus playing a dual role of mechanical limiting and safety protection.

[0021] Reference Figure 2 and Figure 4 In a preferred embodiment, four reference pillars 6 are provided, and the four reference pillars 6 are fixedly installed at the four corners of the reference transfer disk 5. A second spring 23 is provided at the bottom end of the reference support 6. One end of the second spring 23 is fixedly connected to the bottom end of the reference support 6, and the other end is fixedly connected to the hydrostatic support cylinder 7. There are four second springs 23, which are respectively set for the four reference supports 6. There are four static pressure support cylinders 7, which are fixedly installed on the upper end face of the support plate 2. The static pressure piston 8 is slidably disposed in the static pressure support cylinder 7, dividing the internal space of the static pressure support cylinder 7 into an upper chamber 9 and a lower chamber 10. The piston rod 81 is fixedly mounted on the upper end of the hydrostatic piston 8 at one end, and fixedly connected to the bottom end of the reference support 6 at the other end. The static pressure support cylinder 7 is provided with a sealing ring 29, and the sealing ring 29 is located between the piston rod 81 and the static pressure support cylinder 7; The top of the hydrostatic support cylinder 7 is provided with an isolation protective cover 24, which is slidably connected to the reference support column 6 to isolate and protect the second spring 23. It should be noted that the cover is sleeved on the outside of the reference support column 6 and slides up and down with the column, but always covers the second spring 23. This effectively isolates external impurities and moisture from corroding the surface of the second spring 23 and the piston rod 81 under harsh dusty or humid working conditions, ensuring the long-term stability of the elastic coefficient of the second spring 23, while preventing the moving parts from jamming and ensuring the sensitivity and reliability of the leveling action.

[0022] Reference Figure 1 , Figure 3 and Figure 4In a preferred embodiment, the support plate 2 is provided with four side cylinders 25, which are fixedly mounted on the support plate 2. Each side cylinder 25 contains a lifting piston 26 and a fourth spring 27. One end of the fourth spring 27 is fixedly connected to the bottom of the side cylinder 25, and the other end is fixedly connected to the bottom of the lifting piston 26. The upper chamber 9 of the static pressure support cylinder 7 is provided with a connecting pipe 28, one end of which communicates with the inside of the side cylinder 25, and the other end of which communicates with the upper chamber 9 of the static pressure support cylinder 7. It should be noted that the side cylinders 25 are connected to the upper chamber 9 of the static pressure support cylinder 7 via the connecting pipe 28. When the pressure in the upper chamber 9 increases sharply due to the piston's upward movement, the high-pressure oil will push the lifting piston 26 inside the side cylinder 25 downward and compress the fourth spring 27. The effect achieved is as follows: on the one hand, this provides an additional buffer expansion space for the upper chamber 9, preventing the pressure of the upper chamber 9 from exploding due to instantaneous impact; on the other hand, the compression and energy storage process of the fourth spring 27 will consume the impact energy and play an auxiliary role in absorbing vibration, while its reset process can help the upper chamber 9 quickly establish a stable back pressure and enhance the system rigidity of the entire hydraulic circuit.

[0023] Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 As a preferred embodiment, there are two equal pressure oil storage tanks 11, which are symmetrically fixed on the support plate 2. The elastic sealing membrane 12 is fixedly disposed on the inner wall of the pressure equalization oil tank 11. The internal space of the pressure equalization oil tank 11 is divided into an oil storage chamber 13 and an air compensation chamber 22 by the elastic sealing membrane 12. The third spring 14 is disposed in the air compensation chamber 22 and is in a compressed state, applying a preload force to the elastic sealing membrane 12 in the direction of the oil storage chamber 13.

[0024] The third spring 14 is installed inside the pressure equalization oil tank 11, with one end fixedly connected to the top center of the pressure equalization oil tank 11 and the other end fixedly connected to the top center of the elastic sealing membrane 12. A pressure equalization connecting pipe 15 is installed between the static pressure support cylinder 7 and the pressure equalization oil reservoir 11. There are six pressure equalization connecting pipes 15. Four of these pipes connect the lower chambers 10 of the four static pressure support cylinders 7 to the nearest oil reservoir 13 of the pressure equalization oil reservoir 11, respectively. The other two pipes connect the lower chambers 10 of the two static pressure support cylinders 7 to each other, thus forming a closed hydraulic circuit between each lower chamber 10 and the oil reservoir 13. It should be noted that the elastic sealing membrane 12 inside the pressure equalization oil reservoir 11 separates the oil reservoir 13 from the air compensation chamber 22, and the third spring 14 is always compressed, applying a constant preload force towards the oil reservoir 13 to the elastic sealing membrane 12. This structure essentially acts as a hydraulic accumulator and pressure balancer. When the piston of one of the hydrostatic support cylinders 7 rises, the oil in the lower chamber 10 at that point is pressurized and forced into the oil storage chamber 13 through the pressure equalization connecting pipe 15. This pushes the elastic sealing diaphragm 12 to deform towards the air compensation chamber 22. The pressure is then transmitted to all other lower chambers 10 through the connecting fluid circuit, driving the other pistons to rise synchronously to share the load. By utilizing the principle of communicating vessels and the compliant compensation characteristics of the diaphragm-spring, the instantaneous automatic redistribution of the load at the four support points is achieved, effectively offsetting the height difference caused by foundation settlement or temperature deformation, without the need for manual intervention or machine shutdown.

[0025] Reference Figure 2 and Figure 6 In a preferred embodiment, an elastic buffer assembly is disposed between the suspension main beam 1 and the support plate 2, and the elastic buffer assembly includes: There are four upper rotating support rods 16. The top ends of the four upper rotating support rods 16 are spherically hinged at the four corners of the suspension main beam 1, and the bottom ends of the upper rotating support rods 16 are provided with limit grooves 17. The limiting slide 17 has a circular cross-section and an enlarged diameter section at the upper end. The lower rotating support rod 18 is correspondingly arranged with the limiting slide 17, and the sliding end of the lower rotating support rod 18 is provided with a limiting part that is adapted to the enlarged diameter section. The limiting part is embedded in the enlarged diameter section and is used to limit the extreme position of the lower rotating support rod 18 reciprocating along the axial direction of the limiting slide 17.

[0026] There are four lower rotating support rods 18. The bottom ends of the four lower rotating support rods 18 are spherically hinged at the four corners of the support plate 2 and are slidably connected to the upper rotating support rods 16. The first spring 19 is disposed within the limiting groove 17, with one end fixedly connected to the top of the limiting groove 17 in the upper rotating support rod 16, and the other end fixedly connected to the lower rotating support rod 18. It should be noted that this assembly is the main structural component responsible for bearing the main load and absorbing vertical and yaw vibrations. The upper rotating support rod 16 and the lower rotating support rod 18 are connected to the main beam and the support plate 2 respectively via a spherical hinge, allowing for multi-degree-of-freedom relative rotation between them. The limiting part of the lower rotating support rod 18 is embedded within the expanded diameter section of the upper rotating support rod 16, forming a pre-tensioned telescopic damping unit in conjunction with the built-in first spring 19. When vibration is transmitted, the first spring 19 absorbs the impact kinetic energy through compression and rebound; the cooperation between the expanded diameter section and the limiting part limits the maximum stroke of the telescopic movement, preventing spring overload or structural detachment.

[0027] Working principle: By installing the three-ring reducer onto the support plate 2 and the suspension main beam 1 onto the external fixed bracket, the gravity pendulum 4 is suspended from the center of the suspension main beam 1 by the flexible pendulum suspension rope 3. Under the action of gravity, it always maintains an absolutely vertical downward posture and is not affected by the tilt of the suspension main beam 1. The bottom of the gravity pendulum 4 is connected to the reference transmission disk 5 through a spherical hinge, so that the reference transmission disk 5 is always horizontal, and the bottom ends of the four reference pillars 6 fixed at its four corners are always on the same horizontal plane; when the support plate 2 tilts, the corresponding side of the base Under the reference action of the gravity pendulum 4, the quasi-support 6 displaces relative to the support plate 2, causing the piston rod 81 and the static pressure piston 8 to slide, changing the volume of the lower chamber 10 of the static pressure support cylinder 7. The closed liquid circuit automatically compensates for the pressure through the pressure equalization connecting pipe 15 and the oil storage chamber 13 of the pressure equalization oil tank 11. At the same time, the pre-compressed third spring 14 in the air compensation chamber 22 applies a pre-tightening force to the elastic sealing diaphragm 12 to maintain the stability of the system pressure, pushing the support plate 2 on this side to rise until it returns to the horizontal position. The lifting piston 26 and the fourth spring 27 in the side cylinder 25 suddenly exert pressure on the liquid circuit. The variable pressure support cylinder 7 provides buffering, and the sealing ring 29 on the hydrostatic support cylinder 7 ensures the fluid circuit is sealed. The isolation protection cover 24 protects the second spring 23 from contamination, achieving dynamic self-balancing without stopping the machine. At the same time, when the inertial force imbalance generated by the operation of the three-ring reducer causes severe vibration, the vibration energy is transmitted to the elastic buffer assembly through the support plate 2. This assembly is formed by four sets of upper rotating support rods 16 and lower rotating support rods 18 slidingly connected. The top of the upper rotating support rod 16 is spherically hinged to the four corners of the suspension main beam 1, and the bottom of the lower rotating support rod 18 is spherically hinged to the four corners of the support plate 2. The limiting slide groove 17 is equipped with a first spring 19. Vibration causes the lower rotating support rod 18 to slide along the axial direction of the upper rotating support rod 16 and compress or extend the first spring 19, converting mechanical vibration energy into elastic potential energy and dissipating it. The spherical hinge adapts to multi-directional vibration. The expanded diameter section of the limiting slide groove 17 cooperates with the limiting part of the lower rotating support rod 18 to limit the maximum sliding stroke to prevent spring overload, thereby effectively absorbing and isolating vibration impact, avoiding vibration transmission to the installation foundation, which may cause the anchor bolts to loosen and the shell to crack, and significantly improving the equipment's operational stability and the service life of bearings and gears.

Claims

1. A self-balancing suspension type flexible elastic support device for a three-ring reducer, comprising a suspension main beam (1) and a support plate (2), characterized in that, Also includes: The pendulum suspension rope (3) is fixed at one end to the center of the main suspension beam (1); A gravity pendulum (4) is fixedly mounted at the other end of the pendulum suspension rope (3); The reference transfer disk (5) is located below the gravity pendulum (4) and is spherically hinged to the bottom of the gravity pendulum (4); There are four reference pillars (6), which are fixedly installed at the four corners of the reference transfer disk (5); There are four static pressure support cylinders (7), which are fixedly installed on the upper end face of the support plate (2); The static pressure piston (8) is slidably disposed in the static pressure support cylinder (7), dividing the internal space of the static pressure support cylinder (7) into an upper chamber (9) and a lower chamber (10). The piston rod (81) is fixedly mounted at one end on the upper end of the hydrostatic piston (8), and the other end is fixedly connected to the bottom end of the reference support (6); Two equalizing oil storage tanks (11) are provided, and the two equalizing oil storage tanks (11) are symmetrically fixed on the support plate (2); An elastic sealing membrane (12) is fixedly disposed on the inner wall of the pressure equalization oil storage tank (11) at its edge, forming an oil storage cavity (13) with the inner wall of the pressure equalization oil storage tank (11). The third spring (14) is installed inside the pressure equalization oil tank (11), with one end fixedly connected to the top center of the pressure equalization oil tank (11) and the other end fixedly connected to the top center of the elastic sealing membrane (12). The equalizing connecting pipe (15) is set between the static pressure support cylinder (7) and the equalizing oil tank (11) to connect the lower chambers (10) of the four static pressure support cylinders (7) to the oil storage chambers (13) of the two equalizing oil tanks (11) respectively, so that each lower chamber (10) and the oil storage chamber (13) form a closed liquid circuit that is interconnected. An elastic buffer assembly is disposed between the suspension main beam (1) and the support plate (2).

2. The self-balancing suspension flexible elastic support device for a three-ring reducer according to claim 1, characterized in that, The elastic buffer component includes: There are four upper rotating support rods (16), and the top ends of the four upper rotating support rods (16) are spherically hinged at the four corners of the suspension main beam (1), and the bottom end of the upper rotating support rods (16) is provided with a limit groove (17). There are four lower rotating support rods (18), and the bottom ends of the four lower rotating support rods (18) are spherically hinged at the four corners of the support plate (2) and are slidably connected to the upper rotating support rods (16); The first spring (19) is set in the limiting groove (17), and one end is fixedly connected to the top of the limiting groove (17) in the upper rotating support rod (16), and the other end is fixedly connected to the lower rotating support rod (18).

3. The self-balancing suspension flexible elastic support device for a three-ring reducer according to claim 2, characterized in that, The lower center of the suspended main beam (1) is provided with a pendulum limiting cover (20), which is a cylindrical structure with an open lower end. The inner wall of the pendulum limiting cover (20) is provided with an elastic buffer layer (21) to limit the maximum swing offset of the gravity pendulum (4) in the horizontal direction.

4. The self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 3, characterized in that, The internal space of the equalizing oil tank (11) is divided into the oil storage chamber (13) and the air compensation chamber (22) by the elastic sealing membrane (12). The third spring (14) is disposed in the air compensation chamber (22) and is in a compressed state, applying a preload force to the elastic sealing membrane (12) in the direction of the oil storage chamber (13).

5. The self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 4, characterized in that, The pressure equalization connecting pipe (15) is provided with six pipes. Four of the pipes connect the lower chambers (10) of the four static pressure support cylinders (7) to the oil storage chambers (13) of the nearest pressure equalization oil tank (11) respectively. The other two pipes connect the lower chambers (10) of the two static pressure support cylinders (7) to each other, forming a fully connected pressure equalization network.

6. The self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 5, characterized in that, The base support (6) is provided with a second spring (23) at its bottom end. One end of the second spring (23) is fixedly connected to the bottom end of the base support (6), and the other end is fixedly connected to the hydrostatic support cylinder (7). There are four second springs (23) and they are respectively set for the four base supports (6).

7. The self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 6, characterized in that, The top of the hydrostatic support cylinder (7) is provided with an isolation and protection slide cover (24), which is slidably connected to the reference support column (6) to isolate and protect the second spring (23).

8. A self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 7, characterized in that, The support plate (2) is provided with a side cylinder (25), and there are four side cylinders (25) fixedly installed on the support plate (2). Inside the side cylinder (25) is a lifting piston (26) and a fourth spring (27). One end of the fourth spring (27) is fixedly connected to the bottom of the side cylinder (25), and the other end is fixedly connected to the bottom of the lifting piston (26). The upper chamber (9) of the static pressure support cylinder (7) is provided with a connecting pipe (28). One end of the connecting pipe (28) is connected to the inside of the side cylinder (25), and the other end is connected to the upper chamber (9) of the static pressure support cylinder (7).

9. A self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 8, characterized in that, The limiting slide groove (17) has a circular cross-section and an enlarged diameter section at the upper end. The lower rotating support rod (18) is correspondingly arranged with the limiting slide groove (17), and the sliding end of the lower rotating support rod (18) is provided with a limiting part that is adapted to the enlarged diameter section. The limiting part is embedded in the enlarged diameter section and is used to limit the extreme position of the lower rotating support rod (18) reciprocating along the axial direction of the limiting slide groove (17).

10. A self-balancing suspension type flexible elastic support device for a three-ring reducer according to claim 9, characterized in that, The static pressure support cylinder (7) is provided with a sealing ring (29), and the sealing ring (29) is located between the piston rod (81) and the static pressure support cylinder (7).

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