Wave plate elastic support metal rubber and extrusion oil film combined damper

Abstract

The application relates to a wave-shaped disc elastic support metal rubber and extrusion oil film combined damper, and relates to a damper. In order to solve the nonlinear and other adverse characteristics of the conventional elastic support extrusion oil film damper, and the elastic problem that the metal rubber may not be completely restored in the loading process, the bearing sleeve is arranged on a rotor shaft, the side surface of the bearing is provided with a pressing nut arranged on the rotor shaft, a wave-shaped elastic support ring is arranged on the bearing, the left and right sides of the wave-shaped elastic support ring are connected through a left side axial limiting end cover and a right side axial limiting end cover, a support base is arranged on the wave-shaped elastic support ring and connected with the left side axial limiting end cover and the right side axial limiting end cover, a metal rubber assembly is arranged in the wave-shaped elastic support ring, and a sealing chuck is clamped on the annular opening side of the left side of the wave-shaped elastic support ring. The application is used for supporting the rotors of rotating machines such as gear shafts and turbine shafts.

Description

TECHNICAL FIELD

[0001] The present application relates to a damper, in particular to a wave-shaped disc elastic support metal rubber and extrusion oil film combined damper. It belongs to the field of rotating machinery such as gas turbines and gears. BACKGROUND

[0002] The rotor vibration problem of rotating machinery equipment such as gas turbines, steam turbines and gearboxes is related to the running stability and reliability of the whole machine. With the increase of speed and power, the damping vibration reduction technology of the rotor becomes more and more important. The elastic support structure with damper is often an important means for frequency adjustment and vibration reduction of rotating machinery rotors such as gas turbines.

[0003] The mass, stiffness and damping of the rotor system mainly affect the critical speed, unbalance response, transient response and other characteristics in the process of acceleration and deceleration. The effect of adjusting the critical speed and other rotor characteristics by adjusting the mass and stiffness of the rotor itself is limited, because the stiffness and strength of the shaft itself also need to be considered. Therefore, the stiffness and damping of the rotating support are often important design parameters in the design of rotor dynamics. For example, the elastic support extrusion oil film damper technology applied in the field of aero-engine is mainly to adjust two important parameters of the support stiffness and damping of the rotor: by adjusting the stiffness of the elastic support, the adjustment of the critical speed is realized, so as to meet the design criteria such as critical speed avoidance rate; by adjusting the damping of the damper, the vibration energy of the rotor-support system is absorbed, so as to realize certain damping effect.

[0004] At present, the common stiffness and damping adjustment measures for rotating machinery rotors such as gas turbines include: elastic support extrusion oil film damper, electromagnetic bearing, piezoelectric pull rod bearing, hydraulic servo force support bearing, etc. The last three systems need to be equipped with additional auxiliary control systems, which increases the complexity of the system and reduces the reliability of the system. The first kind of elastic support extrusion oil film damper is widely used, but if the unbalance of the rotor is too large, etc. causes the eccentricity to be too large, it is easy to cause adverse phenomena such as bistability. Therefore, in order to improve the nonlinear characteristics of the elastic support extrusion oil film damper, traditional domestic and foreign scholars have been committed to the research and development of various elastic support dampers. Metal rubber is a porous material made of metal wire winding, which has good elasticity and damping characteristics, and can be used in vibration reduction applications of rotating machinery. However, metal rubber itself has the phenomenon that it will not completely recover after deformation, and the damping effect of metal rubber is mainly due to the friction energy dissipation of the mutually wound metal wire support, which needs to be considered for good wear protection.

[0005] In summary, the existing traditional elastic support extrusion oil film damper has nonlinear and other adverse characteristics, and the metal rubber may not completely recover in the loading process. SUMMARY

[0006] The present application aims to solve the non-linear and other unfavorable characteristics of the conventional elastic support squeeze oil film damper, and the elastic problem that the metal rubber may not fully recover during loading. Furthermore, a wave-shaped disc elastic support metal rubber and squeeze oil film combined damper is provided.

[0007] The technical scheme of the present application is: a wave-shaped disc elastic support metal rubber and squeeze oil film combined damper comprises a support seat, a wave-shaped elastic support ring, a left side axial limiting end cover, a right side axial limiting end cover, a bearing outer ring pressing nut, a metal rubber assembly and a sealing chuck; the bearing is sleeved on the rotor shaft, and the side surface of the bearing is provided with the pressing nut located on the rotor shaft, the wave-shaped elastic support ring is sleeved on the bearing, the left and right sides of the wave-shaped elastic support ring are connected through the left side axial limiting end cover and the right side axial limiting end cover respectively, the support seat is installed on the wave-shaped elastic support ring and connected with the left side axial limiting end cover and the right side axial limiting end cover, the metal rubber assembly is installed in the wave-shaped elastic support ring, and the sealing chuck is clamped on the left side annular opening side of the wave-shaped elastic support ring.

[0008] Further, a damping oil discharge interface is formed in the support seat and communicates with the wave-shaped elastic support ring.

[0009] Further, an oil passage hole is processed on the wave-shaped elastic support ring along the radial direction thereof, the oil passage hole communicates with the damping oil discharge interface, an annular clamping groove is processed on the upper left side of the wave-shaped elastic support ring, and the sealing chuck is clamped in the annular clamping groove.

[0010] Further, a plurality of pre-tightening bolt mounting holes are processed on the right side end surface of the wave-shaped elastic support ring.

[0011] Further, the sealing chuck is a drum-shaped protruding ring disc structure.

[0012] Further, a sealing screw is installed on the right side axial limiting end cover, the right side axial limiting end cover is connected with the support seat through the mounting bolt, a convex ring is arranged in the middle part of the right side axial limiting end cover, the convex ring is inserted into the annular groove on the right side of the wave-shaped elastic support ring, a gap is left between the convex ring and the annular groove, a plurality of squeeze oil film sealing rings are installed in the gap, an oil inlet hole of the squeeze oil film is processed in the convex ring, and the oil inlet hole of the squeeze oil film communicates with the gap.

[0013] Further, an axial limiting sealing ring is installed on the lower part of the right side axial limiting end cover.

[0014] Further, the metal rubber assembly comprises an annular metal rubber, a locking pull rod and a limiting ring, the annular metal rubber is installed in the annular groove on the left side of the wave-shaped elastic support ring, one end of the locking pull rod is connected with the annular groove wall, the other end of the locking pull rod passes through the annular metal rubber and is connected with the limiting ring to limit the annular metal rubber.

[0015] Further, the lower part of the left axial limiting end cover is provided with a left limiting sealing ring.

[0016] Further, the cross section shape of the bearing outer ring pressing nut is a "∟" shape.

[0017] Compared with the prior art, the present application has the following effects:

[0018] The present application focuses on the composite damping of metal rubber and extruded oil film, combines the respective advantages of extruded oil film damping and metal rubber damping, and proposes a wave-shaped disc elastic support metal rubber and extruded oil film combined damper to realize the adjustment of the support stiffness and damping of the rotating machinery rotor, thereby realizing the adjustment of the critical speed and further absorbing vibration energy, meeting the rotor system design criteria, making the rotor adapt to higher speed, and having higher running stability and reliability.

[0019] A wave-shaped disc elastic support metal rubber and extruded oil film combined damper is proposed, which focuses on the composite damping of metal rubber and extruded oil film, combines the respective advantages of extruded oil film damping and metal rubber damping, improves the non-linear characteristics of the damper, and integrates the above two damping structures compactly in combination with the wave-shaped disc elastic support structure. The present application realizes the adjustment of the support stiffness and damping of the rotating machinery rotor, thereby realizing the adjustment of the critical speed and further absorbing vibration energy, meeting the rotor system design criteria, and expanding the application range and structure form of the elastic support damper. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a wave-shaped disc elastic support metal rubber and extruded oil film combined damper principle diagram of the present application, which shows the system composition and mutual relationship of the present application;

[0021] Figure 2 is an isometric side stepped sectional view of the wave-shaped disc and sealing chuck assembly, which shows the assembly relationship of the wave-shaped disc and the elastic sealing chuck and the features such as the wave-shaped disc inner cavity and oil supply and return holes. DETAILED DESCRIPTION

[0022] Specific implementation method one: in combination with Figure 1 and Figure 2This embodiment describes a waveform disc elastic support metal rubber and extrusion oil film combined damper, comprising a support base 10, a waveform elastic support ring 20, a left axial limiting end cap 60, a right axial limiting end cap 40, a bearing outer ring clamping nut 70, a metal rubber assembly 50, and a sealing chuck 30. A bearing 80 is mounted on a rotor shaft 90, and a clamping nut 91 located on the rotor shaft 90 is installed on the side of the bearing 80. The waveform elastic support ring 20 is mounted on the bearing 80, and the left and right sides of the waveform elastic support ring 20 are connected via the left axial limiting end cap 60 and the right axial limiting end cap 40, respectively. The support base 10 is mounted on the waveform elastic support ring 20 and connected to the left axial limiting end cap 60 and the right axial limiting end cap 40. The metal rubber assembly 50 is installed inside the waveform elastic support ring 20, and the sealing chuck 30 is clamped onto the annular opening side on the left side of the waveform elastic support ring 20.

[0023] The present invention provides support stiffness through a wave-shaped elastic support ring 20, and provides support damping through a metal rubber component 50 and an extruded oil film. It can be applied to the support of rotors of rotating machinery such as gear shafts and turbine shafts.

[0024] This invention relates to a combined damper of corrugated disc elastic support and metal rubber and extrusion oil film. Specifically, the corrugated disc provides the support stiffness, while the metal rubber and extrusion oil film together provide the support damping. It can be applied to the support of rotors in rotating machinery such as gear shafts and turbine shafts. This invention improves upon the nonlinear and other unfavorable characteristics of traditional elastic support extrusion oil film dampers and overcomes the elasticity characteristic of metal rubber that may not fully recover during loading. It focuses on utilizing the composite damping of metal rubber and extrusion oil film, combining the advantages of both extrusion oil film damping and metal rubber damping, to propose a combined damper of corrugated disc elastic support and metal rubber and extrusion oil film.

[0025] The application is composed of a bearing seat, a wave-shaped elastic support disc, a sealing chuck, a right side extruded oil film outer ring sealing end cover, a metal rubber assembly, a left side axial limiting end cover, a bearing outer ring pressing nut, a bearing and a rotor shaft. The right side extruded oil film outer ring sealing end cover and the ring cavity of the wave-shaped elastic support disc form an extruded oil film. Compared with a fixed outer ring in a traditional elastic support extruded oil film damper area, the right side extruded oil film outer ring sealing end cover is a cantilever structure, the extruded oil film outer ring has a certain deformation under the action of the extruded oil film force, the deformation amount can be adjusted through the specific design of the right side extruded oil film outer ring sealing end cover, the distribution of the extruded oil film force will change, especially when the eccentricity is too large due to the excessive imbalance of the rotor, the deformation of the cantilever structure of the right side extruded oil film outer ring sealing end cover will reduce the extrusion amount of the oil film, thereby improving the nonlinear characteristics of the damper. The damping oil inlet interface on the bearing seat can provide a certain pressure of lubricating oil to the wave-shaped disc metal rubber damper, the metal rubber assembly is soaked in the lubricating oil, and when the wave-shaped elastic support disc is deformed elastically due to the vibration of the rotor shaft, the annular cavity is deformed, causing the flow of the lubricating oil in the annular cavity. The lubricating oil passes through the porous structure of the annular metal rubber, and under the action of the capillary effect of the metal rubber itself, the throttling damping effect is brought. When the wave-shaped elastic support disc is deformed elastically due to the vibration of the rotor shaft, the annular cavity is deformed, causing the deformation of the metal rubber assembly. When the metal rubber assembly is deformed, the damping effect is generated through the energy dissipation mechanism such as friction between the metal wires. The metal rubber assembly is deformed, the damping effect is generated through the energy dissipation mechanism such as friction between the metal wires. The good damping characteristics of the metal rubber also help to improve the nonlinear characteristics of the damper when the eccentricity is too large due to the excessive imbalance of the rotor.

[0026] In summary, the wave-shaped disc elastic support metal rubber and extruded oil film combined damper focuses on the composite damping of the metal rubber and the extruded oil film, combines the respective advantages of the extruded oil film damping and the metal rubber damping, improves the nonlinear characteristics of the damper, combines the wave-shaped disc elastic support structure, and compactly integrates the above two damping structures. The entire damper structure is compact, the damping vibration reduction effect is obvious, and the installation and adjustment are simple and convenient.

[0027] Specific implementation method two: combination Figure 1 In this implementation method, the damping oil discharge interface 11 is provided on the support seat 10, and the damping oil discharge interface 11 is in communication with the wave-shaped elastic support ring 20. The bearing seat is a part for providing fixed rigid support, and is generally a housing of a mechanical rotating device; the other components and connection relationships are the same as those in the specific implementation method one.

[0028] The damping oil inlet interface on the bearing seat in this embodiment can provide a certain pressure of lubricating oil to the metal rubber damper of the wave-shaped disc, the metal rubber assembly is immersed in the lubricating oil, and when the wave-shaped elastic support disc vibrates on the rotor shaft, elastic deformation occurs, the annular cavity is deformed, the lubricating oil in the annular cavity flows, the lubricating oil passes through the porous structure of the annular metal rubber, and the throttling damping effect is brought about under the action of the capillary effect of the metal rubber itself. When the wave-shaped elastic support disc vibrates on the rotor shaft, elastic deformation occurs, the annular cavity is deformed, and the metal rubber assembly is deformed, and the damping effect is generated between the metal wires through friction and other energy dissipation mechanisms when the metal rubber assembly is deformed, and the damping effect is generated together with the throttling damping of the lubricating oil passing through the capillary hole of the metal rubber assembly.

[0029] Specific embodiment three: in combination Figure 1 and Figure 2 This embodiment is described, the wave-shaped elastic support ring 20 in this embodiment is provided with an oil passage hole 21 in the radial direction thereof, the oil passage hole 21 is in communication with the damping oil discharge interface 11, and the left upper portion of the wave-shaped elastic support ring 20 is provided with an annular clamping groove 22, and the sealing chuck 30 is clamped in the annular clamping groove 22. In this way, the wave-shaped elastic support disc is a part that provides main elastic support stiffness; other components and connection relationships are the same as those in specific embodiments one or two.

[0030] Specific embodiment four: in combination Figure 1 and Figure 2 This embodiment is described, the wave-shaped elastic support ring 20 in this embodiment is provided with a plurality of pre-tightening bolt mounting holes 23 on the right side end face. In this way, the connection function is facilitated. Other components and connection relationships are the same as those in specific embodiments one, two or three.

[0031] Specific embodiment five: in combination Figure 1 This embodiment is described, the sealing chuck 30 in this embodiment is a drum-shaped protruding ring disc structure. In this way, it has good elasticity and is a sealing member of the ring cavity of the wave-shaped elastic support disc 20. Other components and connection relationships are the same as those in specific embodiments one, two, three or four.

[0032] Specific embodiment six: in combination Figure 1 This embodiment is described, the right side axial limiting end cover 40 in this embodiment is provided with a sealing screw 42, the right side axial limiting end cover 40 is connected with the support seat 10 through the mounting bolt 41, the middle part of the right side axial limiting end cover 40 is provided with a convex ring, the convex ring is inserted into the annular groove on the right side of the wave-shaped elastic support ring 20, a gap is left between the convex ring and the annular groove, a plurality of extrusion oil film sealing rings 43 are mounted in the gap, an extrusion oil film inlet hole 44 is processed in the convex ring, and the extrusion oil film inlet hole 44 is in communication with the gap.

[0033] The right side extrusion oil film outer ring sealing end cover and the ring cavity of the wave-shaped elastic support disc form an extrusion oil film in the embodiment. When the wave-shaped elastic support disc vibrates on the rotor shaft, elastic deformation occurs. The right side extrusion oil film outer ring sealing end cover and the wave-shaped elastic support disc are not deformed in coordination, thereby causing the oil film to be subjected to local extrusion, thereby generating an extrusion oil film damping force. Compared with the fixed outer ring in the traditional elastic support extrusion oil film damper area, the right side extrusion oil film outer ring sealing end cover is a cantilever structure. The extrusion oil film outer ring deforms under the action of the extrusion oil film force. The deformation amount can be adjusted through the specific design of the right side extrusion oil film outer ring sealing end cover. The distribution of the extrusion oil film force changes. When the eccentricity is too large due to excessive rotor imbalance and other reasons, the deformation of the cantilever structure of the right side extrusion oil film outer ring sealing end cover will reduce the extrusion amount of the oil film, thereby improving the nonlinear characteristics of the damper. The other components and connection relationships are the same as those in embodiments one, two, three, four, five, or six.

[0034] Embodiment seven: in combination with Figure 1 In this embodiment, the lower part of the right side axial limiting end cover 40 is provided with an axial limiting sealing ring 45. In this way, the sealing effect is achieved. The other components and connection relationships are the same as those in embodiments one, two, three, four, five, or six.

[0035] Embodiment eight: in combination with Figure 1 In this embodiment, the metal rubber assembly 50 includes an annular metal rubber 51, a locking pull rod 52, and a limiting ring 53. The annular metal rubber 51 is installed in the annular groove on the left side of the wave-shaped elastic support ring 20. One end of the locking pull rod 52 is connected to the annular groove wall, and the other end of the locking pull rod 52 passes through the annular metal rubber 51 and is connected to the limiting ring 53 to limit the annular metal rubber 51. In this way, the metal rubber assembly provides throttling damping and internal material damping. The other components and connection relationships are the same as those in embodiments one, two, three, four, five, six, or seven.

[0036] The good damping characteristics of the metal rubber in this embodiment also help to improve the nonlinear characteristics of the damper when the eccentricity is too large due to excessive rotor imbalance and other reasons.

[0037] Embodiment nine: in combination with Figure 1 In this embodiment, the lower part of the left side axial limiting end cover 60 is provided with a left side limiting sealing ring 61. In this way, the sealing effect is good, and oil leakage is prevented. The other components and connection relationships are the same as those in any one of embodiments one to eight.

[0038] Embodiment ten: in combination with Figure 1The bearing outer ring compression nut 70 of the embodiment is in the shape of a "L" in cross section. In this way, the wave-shaped elastic support disc is supported and limited. The other components and connection relationships are the same as any one of embodiments 1 to 9.

[0039] In combination Figure 1 And Figure 2 The working principle of the application is described as follows:

[0040] Referring to Figure 1 , the application comprises a bearing seat 10, a wave-shaped elastic support disc 20, a sealing chuck 30, a right side extruded oil film outer ring sealing end cover 40, a metal rubber assembly 50, a left side axial limiting end cover 60, a bearing outer ring compression nut 70, a bearing 80 and a rotor shaft 90.

[0041] First, the bearing seat 10 is a part for providing fixed rigid support, generally a housing of a mechanical rotating device, etc., and the bearing seat 10 is provided with a damping oil inlet and outlet interface 11; the wave-shaped elastic support disc 20 is a part for providing main elastic support stiffness, and is provided with an oil passage 21, an annular clamping groove 22 and a pre-tightening bolt mounting hole 23; the sealing chuck 30 is a drum-shaped protruding ring disc structure, has good elasticity and is a sealing member of the ring cavity of the wave-shaped elastic support disc 20; the right side extruded oil film outer ring sealing end cover 40 comprises a mounting bolt 41, a sealing screw 42, an extruded oil film sealing ring 43, an extruded oil film oil inlet hole 44 and an axial limiting sealing ring 45; and the left side axial limiting end cover 60 comprises a mounting bolt 41 and a left side limiting sealing ring 61; the metal rubber assembly 50 is an element for providing damping and a certain support stiffness, and comprises an annular metal rubber 51, a pre-tightening pull rod 52 and a limiting ring 53; the bearing outer ring compression nut 70 compresses the outer ring of the bearing 80 on the inner hole of the wave-shaped elastic support disc 20, and the bearing inner ring compression nut 91 compresses the inner ring of the bearing 80 on the rotor shaft 90, so as to realize the radial and axial positioning of the bearing 80.

[0042] Further, the damping oil inlet interface 11 on the bearing seat 10 can provide a certain pressure of lubricating oil to the wave-shaped disc metal rubber damper, the metal rubber assembly 50 is soaked in the lubricating oil, and when the wave-shaped elastic support disc 20 vibrates on the rotor shaft 90, elastic deformation occurs, the annular cavity is deformed, the lubricating oil in the annular cavity flows, and the lubricating oil passes through the porous structure of the annular metal rubber 51 and brings about throttling damping effect under the action of the capillary flow effect of the metal rubber itself.

[0043] Further, the wave-shaped elastic support disc 20 has an oil passage hole 21, an annular clamping groove 22 and a pre-tightening bolt mounting hole 23; the annular clamping groove 22 is used for mounting the sealing chuck 30, which is mounted into the annular clamping groove 22 of the wave-shaped elastic support disc 20 under the action of elastic deformation, seals the annular cavity of the wave-shaped elastic support disc 20 and forms a first sealing ring joint to avoid the wear debris of the metal rubber assembly 50 from entering the lubrication system of the shafting.

[0044] Further, the right side extrusion oil film outer ring sealing end cover 40 has a screw boss 42 corresponding to the pre-tightening bolt mounting hole 23 of the wave-shaped elastic support disc 20; the screw boss 42 can be disassembled to adjust the pre-tightening pull rod 52 of the metal rubber assembly 50, and the screw boss 42 and the axial limiting sealing ring 45 can ensure that the right side extrusion oil film outer ring sealing end cover 40 and the left side axial limiting end cover 60 form a sealed cavity around the wave-shaped elastic support disc 20 to form a second sealing ring joint, thereby avoiding the wear debris of the metal rubber assembly 50 from entering the lubrication system of the shafting.

[0045] Further, the right side extrusion oil film outer ring sealing end cover 40 is a main damping element, and the extrusion oil film sealing ring 43 thereon and the extrusion oil film cavity formed by the inner wall of the annular cavity of the wave-shaped elastic support disc 20 provide a certain viscosity and pressure of the oil film to the inside through the extrusion oil film oil inlet hole 44, so that the wave-shaped elastic support disc 20 will be elastically deformed when the rotor shaft 90 vibrates, the right side extrusion oil film outer ring sealing end cover 40 and the wave-shaped elastic support disc 20 are not deformed in coordination, thereby causing the oil film to be locally extruded, so that the extrusion oil film damping force is generated. Compared with the fixed outer ring of the conventional elastic support extrusion oil film damper, the right side extrusion oil film outer ring sealing end cover 40 is a cantilever structure, the extrusion oil film outer ring has a certain deformation under the action of the extrusion oil film force, the deformation amount can be adjusted through the specific design of the right side extrusion oil film outer ring sealing end cover 40, the distribution of the extrusion oil film force will change, especially when the unbalance of the rotor is too large, the deformation of the cantilever structure of the right side extrusion oil film outer ring sealing end cover 40 will reduce the extrusion amount of the oil film, thereby improving the non-linear characteristics of the damper.

[0046] Further, the metal rubber assembly 50 is another element for providing main damping effect, comprising annular metal rubber 51, pre-tightening pull rod 52, and limiting ring 53, the pre-tightening pull rod 52 is assisted by the limiting ring 53 to realize the pre-deformation of the annular metal rubber 51 by adjusting the axial compression amount, so as to avoid the phenomenon that the metal rubber itself may not fully recover in the loading process. When the wave-shaped elastic support disc 20 vibrates on the rotor shaft 90, elastic deformation occurs, the annular cavity is deformed, which causes the metal rubber assembly 50 to deform, and the damping effect is generated by the friction between the metal wires during deformation and other energy dissipation mechanisms. The good damping characteristics of the metal rubber also help to improve the non-linear characteristics of the damper when the rotor is out of balance and the eccentricity is too large due to the excessive imbalance of the rotor.

[0047] Further, in order to limit the axial displacement of the wave-shaped elastic support disc 20 caused by the radial deformation, the gap between the right axial limiting end cover 40 and the left axial limiting end cover 60 can be controlled to limit the maximum displacement; by adjusting the gap between the limiting ring 53 and the annular cavity wall of the wave-shaped elastic support disc 20, the maximum radial displacement is limited, when the displacement is large, the annular cavity wall of the wave-shaped elastic support disc 20 contacts the limiting ring 53, and the safety protection of large displacement is realized.

[0048] In summary, the wave-shaped disc elastic support metal rubber and extrusion oil film combined damper provided by the application focuses on the composite damping of metal rubber and extrusion oil film, combines the respective advantages of extrusion oil film damping and metal rubber damping, improves the non-linear characteristics of the damper, and combines the wave-shaped disc elastic support structure, compactly integrates the above two damping structures, the entire damper structure is compact, the damping vibration reduction effect is obvious, and the installation and adjustment are simple and convenient.

[0049] Although the application has been disclosed as above with reference to the preferred embodiments, it is not intended to limit the application, and those skilled in the art can make other changes within the spirit of the application and apply the application to fields not mentioned in the application, of course, the changes made according to the spirit of the application should be included in the scope of protection claimed by the application.

Claims

1. A wave plate elastic support metal rubber and extrusion oil film combined damper, characterized in that: It comprises a support seat (10), a wave-shaped elastic support ring (20), a left axial limiting end cover (60), a right axial limiting end cover (40), a bearing outer ring pressing nut (70), a metal rubber assembly (50) and a sealing chuck (30); The bearing (80) is sleeved on the rotor shaft (90), and the side surface of the bearing (80) is provided with the pressing nut (91) located on the rotor shaft (90); the wave-shaped elastic support ring (20) is sleeved on the bearing (80), and the left and right sides of the wave-shaped elastic support ring (20) are connected through the left axial limiting end cover (60) and the right axial limiting end cover (40) respectively; the support seat (10) is installed on the wave-shaped elastic support ring (20) and connected with the left axial limiting end cover (60) and the right axial limiting end cover (40); the metal rubber assembly (50) is installed in the wave-shaped elastic support ring (20); and the sealing chuck (30) is clamped on the left side of the wave-shaped elastic support ring (20). The middle part of the right axial limiting end cover (40) is provided with a protruding ring which is inserted into the annular groove on the right side of the wave-shaped elastic support ring (20); a gap is left between the protruding ring and the annular groove, and a plurality of extruded oil film sealing rings (43) are installed in the gap; and an extruded oil film oil inlet hole (44) is processed in the protruding ring, and the extruded oil film oil inlet hole (44) is communicated with the gap.

2. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 1, characterized in that: A damping oil discharge interface (11) is formed in the support seat (10) and communicated with the wave-shaped elastic support ring (20).

3. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 2, characterized in that: An oil passage hole (21) is processed in the wave-shaped elastic support ring (20) along the radial direction thereof and communicated with the damping oil discharge interface (11); an annular clamping groove (22) is processed on the upper left side of the wave-shaped elastic support ring (20), and the sealing chuck (30) is clamped in the annular clamping groove (22).

4. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 3, characterized in that: A plurality of pre-tightening bolt mounting holes (23) are processed on the right end surface of the wave-shaped elastic support ring (20).

5. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 1 or 4, characterized in that: The sealing chuck (30) is a drum-shaped protruding ring disc structure.

6. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 5, characterized in that: A sealing screw (42) is installed on the right axial limiting end cover (40), and the right axial limiting end cover (40) is connected with the support seat (10) through the mounting bolt (41).

7. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 6, characterized in that: An axial limiting sealing ring (45) is installed on the lower part of the right axial limiting end cover (40).

8. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 7, characterized in that: The metal rubber assembly (50) comprises an annular metal rubber (51), a locking pull rod (52) and a limiting ring (53); the annular metal rubber (51) is installed in the annular groove on the left side of the wave-shaped elastic support ring (20); one end of the locking pull rod (52) is connected with the annular groove wall, and the other end of the locking pull rod (52) is connected with the limiting ring (53) after penetrating through the annular metal rubber (51) to limit the annular metal rubber (51).

9. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 8, characterized in that: A left limiting sealing ring (61) is installed on the lower part of the left axial limiting end cover (60).

10. A wave disc elastic support metal rubber and extruded oil film combined damper according to claim 9, characterized in that: The cross-sectional shape of the bearing outer ring pressing nut (70) is "∟".

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