Rubber damping system for improving stability of main cable saddle

Abstract

The invention discloses a rubber vibration reduction system for improving the stability of a main cable saddle. The rubber vibration reduction system for improving the stability of the main cable saddle comprises a grating, a lower bearing plate, a rubber pad and a banding ring, a concave sinking groove is formed in the top of the grating, and the lower bearing plate is movably embedded in the concave sinking groove in the top of the grating. The rubber pad is arranged in a cavity formed by the concave sinking groove in the top of the grating and the bottom of the lower bearing plate. The bottom of the rubber pad makes contact with the bottom wall of the concave sinking groove in the top of the grille, and the top of the rubber pad makes contact with the bottom of the lower bearing plate. A banding ring is arranged between the upper end of the side surface of the rubber pad and the side wall of the concave sinking groove in the grating; and a main cable saddle is mounted at the top of the lower bearing plate. The main cable saddle is good in stability in a vibration environment.

Description

Technical Field

[0001] The invention relates to an improvement of a main cable saddle stability technology, belongs to the field of bridges, and in particular to a rubber vibration reduction system for improving the stability of a main cable saddle. Background Art

[0002] A suspension bridge is a bridge structure with main cables as the main load-bearing components. It has the advantages of strong spanning capacity, simple force transmission, and adaptability to complex terrain. The main cable saddle is an important component supporting the main cables in a suspension bridge. Its main function is to place the main cables. It is usually located on the top of the main tower. The main cable saddle not only bears the weight of the main cables, but also plays an important role in guiding the main cables, dispersing the load, and protecting the main cables. It is a key component to ensure the stability and safety of the suspension bridge structure. The existing vibration reduction measures of the main cable saddle cannot effectively absorb and dissipate the vibration energy transmitted by the main cables, resulting in the vibration pressure being directly transmitted to the cable tower, affecting the stability of the bridge equipment and the main tower structure.

[0003] A Chinese patent application with application number CN202022642588.4 and application date of November 16, 2020, discloses a self-balancing system for the main cable force of a suspension bridge. The self-balancing system comprises: a saddle mechanism, comprising a saddle, a roller, and a main cable, wherein the saddle is arranged on the roller, the main cable is arranged on the saddle, and the saddle is slidable along the direction of the main cable; a limiting mechanism, comprising a first limiting block and a second limiting block; and a braking mechanism, comprising a brake, wherein the first side and the second side of the saddle are respectively provided with corresponding brakes. The utility model realizes adjustment of the unbalanced force generated by the main cable by respectively providing a first limiting block and a second limiting block at both ends of the saddle, so that the saddle is positioned between the first limiting block and the second limiting block and moves on the roller; the above scheme prevents the saddle from sliding under the influence of external factors through the braking effect of the brake on the saddle, thereby improving the self-balancing adjustment effect of the saddle main cable, but does not solve the problem of insufficient stability of the main saddle in a vibrating environment.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to overcome the problem of insufficient stability of the main cable saddle in a vibration environment in the prior art, and to provide a rubber vibration reduction system that has better stability of the main cable saddle in a vibration environment and improves the stability of the main cable saddle.

[0006] To achieve the above objectives, the technical solution of the present invention is: a rubber vibration reduction system for improving the stability of the main cable saddle, the rubber vibration reduction system for improving the stability of the main cable saddle includes a grid, a lower bearing plate, a rubber pad and a clamping ring; A concave groove is provided on the top of the grille, and the lower support plate is movably embedded in the concave groove on the top of the grille; The rubber pad is arranged in a cavity formed by the concave sink groove at the top of the grille and the bottom of the lower bearing plate; The bottom of the rubber pad contacts the bottom wall of the concave sink groove at the top of the grille, and the top of the rubber pad contacts the bottom of the lower support plate; A tightening ring is provided between the upper end of the side surface of the rubber pad and the side wall of the concave sink groove on the grille; A main cable saddle is installed on the top of the lower bearing plate.

[0007] The grille includes a connecting plate and a grille frame, the bottom of the connecting plate is connected to the top of the grille frame, and the top of the connecting plate is provided with a concave sink; The four corner side walls of the concave trough are all arc-shaped, the length of the concave trough is less than the length of the connecting plate, and the width of the concave trough is less than the width of the connecting plate; The height of the concave sink is smaller than the height of the connecting plate.

[0008] The side end surfaces around the bottom of the lower bearing plate are provided with arc surfaces that match the arcs at the four corner side walls of the concave sink; The bottom side of the lower bearing plate is adapted to the concave sink.

[0009] The rubber pad includes an upper pad and a lower pad, the top of the upper pad contacts the bottom of the lower support plate, the bottom of the upper pad is connected to the top of the lower pad, and the bottom of the lower pad contacts the inner wall of the concave sink.

[0010] The length of the upper pad is smaller than that of the lower pad, and the width of the upper pad is smaller than that of the lower pad; The side of the upper half of the cushion is provided with a placement area above the lower half of the cushion, and a tightening ring is provided in the placement area; The inner side wall of the clamping ring contacts the outer side of the upper half pad, and the outer side of the clamping ring contacts the inner wall of the concave sink; The top of the clamping ring contacts the bottom of the lower bearing plate, and the bottom of the clamping ring contacts the top of the lower half pad.

[0011] The height of the tightening ring is the same as that of the upper pad, and the height of the upper pad is the same as that of the lower pad; The outer length of the clamping ring is the same as the inner wall length of the concave sink groove, and the outer width of the clamping ring is the same as the inner wall width of the concave sink groove.

[0012] The clamping ring is a hollow ring; The inner side of the clamping ring is provided with a plurality of expansion and contraction grooves which are distributed at equal distances, and the expansion and contraction grooves are in contact with the upper half pad.

[0013] The telescopic slot is a non-connected slot body, and the slot opening of the telescopic slot is opened toward the upper half pad; The end of the telescopic slot away from the upper half pad is arc-shaped.

[0014] A dustproof ring is provided around the outer periphery of the lower support plate, and one end of the dustproof ring away from the lower support plate is engaged with the inner wall side of the concave sink; The upper end of the dustproof ring is located above the lower bearing plate.

[0015] A dustproof groove is provided in the middle section of the side surface of the lower bearing plate, a dustproof ring is embedded in the dustproof groove, and the dustproof groove is arranged around; The height of the dustproof groove is smaller than the height of the lower supporting plate, and the thickness of the dustproof ring is the same as that of the dustproof groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. A rubber vibration damping system for improving the stability of a main cable saddle according to the present invention comprises a grille, a lower bearing plate, a rubber pad and a clamping ring; a concave groove is provided on the top of the grille, and the lower bearing plate is movably embedded in the concave groove on the top of the grille; the rubber pad is arranged in a cavity formed by the concave groove on the top of the grille and the bottom of the lower bearing plate; the bottom of the rubber pad contacts the bottom wall of the concave groove on the top of the grille, and the top of the rubber pad contacts the bottom of the lower bearing plate; a clamping ring is provided between the upper end of the side surface of the rubber pad and the side wall of the concave groove on the grille; the top of the lower bearing plate is installed with a main cable saddle, and in use: when the main cable saddle is subjected to a vertical load from a bridge main cable or other structure, the main cable saddle will transfer this part of the load to the lower bearing plate, and the lower bearing plate will transfer the load to the rubber pad. Due to its elastic characteristics, the rubber pad will begin to elastically deform. When subjected to the load, the rubber pad will compress and deform in the vertical direction, which can absorb and buffer the impact of the load, thereby reducing the vibration amplitude of the main cable saddle; the advantages of this design include: First, the main saddle supports the main cable, so that the main cable maintains the correct linear shape and ensures that the main cable maintains a stable stress state under vibration; Second, when the rubber pad is squeezed, it will deform accordingly, absorbing and consuming the kinetic energy generated by the vibration and impact, preventing the main saddle and lower plate assembly from vibrating up and down, ensuring that the main saddle and lower plate assembly remain stable and do not generate impact vibration on the main tower; Third, the clamping ring plays a role in restraining and fixing the rubber pad when it is deformed, preventing the rubber pad from lateral displacement or sliding, and ensuring that the rubber pad always works within the designed cavity; Therefore, the main cable saddle of the present invention has good stability in a vibration environment.

[0017] 2. A rubber vibration damping system for improving the stability of a main saddle according to the present invention comprises an upper pad and a lower pad, the top of the upper pad contacts the bottom of the lower bearing plate, the bottom of the upper pad is connected to the top of the lower pad, the bottom of the lower pad contacts the inner wall of the concave sink groove, the length of the upper pad is smaller than the length of the lower pad, and the width of the upper pad is smaller than the width of the lower pad; a side wall of the upper pad is provided with a placement area above the lower pad, and a clamping ring is provided in the placement area; the inner side wall of the clamping ring contacts the outer side wall of the upper pad, and the clamping ring is provided in the placement area; the inner side wall of the clamping ring contacts the outer side wall of the upper pad, and the clamping ring is provided in the placement area; the clamping ring is provided with a clamping ring ... The outer periphery of the tightening ring contacts the inner wall of the concave trough; the top of the tightening ring contacts the bottom of the lower bearing plate, and the bottom of the tightening ring contacts the top of the lower half pad. During use, when the main cable saddle is subjected to a load, the load is transferred through the lower bearing plate to the upper half pad, then through the upper half pad to the lower half pad, and finally by the lower half pad to the concave trough of the grille. The layered structure of the upper and lower half pads can effectively absorb and disperse the load, reducing the vibration of the main cable. The expansion slot of the tightening ring provides additional elastic adjustment function, further improving the vibration reduction effect. Therefore, the present invention has a strong adaptive adjustment capability and a good vibration reduction effect.

[0018] 3. In a rubber vibration damping system for improving the stability of a main saddle, the present invention comprises a plurality of equally spaced expansion slots on the inner side of a clamping ring. The expansion slots contact the upper pad and are disconnected, with the slot openings facing the upper pad. The ends of the expansion slots facing away from the upper pad are arc-shaped. During use, when the rubber pad is subjected to a load, the expansion slots allow the clamping ring to elastically deform within a certain range, thereby better accommodating the deformation of the rubber pad. The arc-shaped design of the expansion slots reduces stress concentration during elastic deformation of the clamping ring, thereby increasing the service life of the clamping ring. Therefore, the present invention provides a larger deformation space and is more stable in use.

[0019] 4. In a rubber vibration damping system for improving the stability of a main saddle, the present invention comprises a dustproof ring arranged around the outer periphery of the lower support plate, the end of the dustproof ring away from the lower support plate being engaged with the inner wall side of the concave sink groove; the upper end of the dustproof ring is arranged above the lower support plate, a dustproof groove is provided in the middle section of the side of the lower support plate, the dustproof ring is embedded in the dustproof groove, and the dustproof groove is arranged around the system; the height of the dustproof groove is less than the height of the lower support plate, and the thickness of the dustproof ring is the same as the thickness of the dustproof groove. When in use, the dustproof ring is arranged around the outer periphery of the lower support plate, and the end away from the lower support plate is engaged with the inner wall side of the concave sink groove, forming a sealed dustproof barrier, effectively preventing dust and debris from entering the cavity between the rubber pad and the lower support plate, thereby improving the stability of the vibration damping device and reducing the friction between the rubber pad and dust and debris during operation, thereby extending the service life of the rubber pad. Therefore, the present invention can prevent the entry of dust and debris and prolong the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 It is a side view of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the concave sink in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the grid in the present invention.

[0024] Figure 5 It is a side view of the grille of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the lower bearing plate in the present invention.

[0026] Figure 7 It is a structural schematic diagram of the dustproof groove in the present invention.

[0027] Figure 8 It is a structural schematic diagram of the rubber pad in the present invention.

[0028] Figure 9 It is a connection diagram of the upper pad and the lower pad in the present invention.

[0029] Figure 10 It is a structural schematic diagram of the clamping ring in the present invention.

[0030] Figure 11 It is a structural schematic diagram of the expansion slot in the present invention.

[0031] In the figure: grille 1, concave sink 11, connecting plate 12, grille frame 13, lower supporting plate 2, dustproof groove 21, rubber pad 3, upper half pad 31, lower half pad 32, placement area 33, dustproof ring 4, tightening ring 5, expansion groove 51, main saddle 6. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] See also Figures 1 to 11 A rubber vibration damping system for improving the stability of a main cable saddle, the rubber vibration damping system for improving the stability of a main cable saddle comprising a grille 1, a lower bearing plate 2, a rubber pad 3 and a clamping ring 5; The top of the grille 1 is provided with a concave sinking groove 11, and the lower bearing plate 2 is movably embedded in the concave sinking groove 11 on the top of the grille 1; The rubber pad 3 is arranged in the cavity formed by the concave sink 11 at the top of the grille 1 and the bottom of the lower plate 2; The bottom of the rubber pad 3 contacts the bottom wall of the concave sink 11 on the top of the grille 1, and the top of the rubber pad 3 contacts the bottom of the lower plate 2; A clamping ring 5 is provided between the upper end of the side of the rubber pad 3 and the side wall of the concave sink 11 on the grille 1; A main saddle 6 is installed on the top of the lower bearing plate 2.

[0034] The grid 1 includes a connecting plate 12 and a grid frame 13. The bottom of the connecting plate 12 is connected to the top of the grid frame 13. The top of the connecting plate 12 is provided with a concave sink 11. The four corner side walls of the concave trough 11 are all arc-shaped. The length of the concave trough 11 is smaller than the length of the connecting plate 12, and the width of the concave trough 11 is smaller than the width of the connecting plate 12. The height of the concave sink 11 is smaller than the height of the connecting plate 12 .

[0035] The side end surfaces around the bottom of the lower bearing plate 2 are provided with arc surfaces that match the arcs at the four corner side walls of the concave sink 11; The bottom side of the lower bearing plate 2 is adapted to the concave sink 11 .

[0036] The rubber pad 3 includes an upper pad 31 and a lower pad 32 . The top of the upper pad 31 contacts the bottom of the lower support plate 2 , the bottom of the upper pad 31 is connected to the top of the lower pad 32 , and the bottom of the lower pad 32 contacts the inner wall of the concave sink 11 .

[0037] The length of the upper pad 31 is smaller than the length of the lower pad 32 , and the width of the upper pad 31 is smaller than the width of the lower pad 32 ; The side of the upper half pad 31 is provided with a placement area 33 above the lower half pad 32, and a tightening ring 5 is provided in the placement area 33; The inner side wall of the clamping ring 5 contacts the outer side of the upper half pad 31 , and the outer side of the clamping ring 5 contacts the inner wall of the concave sink 11 ; The top of the clamping ring 5 contacts the bottom of the lower bearing plate 2 , and the bottom of the clamping ring 5 contacts the top of the lower half pad 32 .

[0038] The height of the clamping ring 5 is the same as that of the upper pad 31, and the height of the upper pad 31 is the same as that of the lower pad 32; The outer length of the clamping ring 5 is the same as the inner wall length of the concave sink 11 , and the outer width of the clamping ring 5 is the same as the inner wall width of the concave sink 11 .

[0039] The clamping ring 5 is a hollow ring; The inner side of the clamping ring 5 is provided with a plurality of equally spaced expansion slots 51 , and the expansion slots 51 are in contact with the upper half pad 31 .

[0040] The telescopic slot 51 is a non-connected slot body, and the slot opening of the telescopic slot 51 is opened toward the upper half pad 31; The end of the expansion slot 51 away from the upper pad 31 is arc-shaped.

[0041] A dust ring 4 is provided around the outer side of the lower support plate 2, and one end of the dust ring 4 away from the lower support plate 2 is engaged with the inner wall side of the concave sink 11; The upper end of the dust ring 4 is located above the lower bearing plate 2 .

[0042] A dustproof groove 21 is provided in the middle section of the side of the lower bearing plate 2, and the dustproof ring 4 is embedded in the dustproof groove 21, and the dustproof groove 21 is arranged around it; The height of the dustproof groove 21 is smaller than that of the lower bearing plate 2 , and the thickness of the dustproof ring 4 is the same as that of the dustproof groove 21 .

[0043] The supplementary technical features of the present invention are as follows: The four corner side walls of the concave sink 11 are designed in an arc shape, which can reduce the local stress concentration of the rubber pad 3 when it is loaded. When the rubber pad 3 undergoes elastic deformation, the arc-shaped side walls better guide the deformation of the rubber pad 3, so that it is evenly stressed in the entire cavity (concave sink 11, placement area 33 and expansion slot 51). The uniform stress state reduces the risk of damage to the rubber pad 3 due to local excessive deformation, thereby extending the service life of the rubber pad 3.

[0044] Example 1: A rubber vibration damping system for improving the stability of the main saddle, the rubber vibration damping system for improving the stability of the main saddle comprising a grille 1, a lower supporting plate 2, a rubber pad 3 and a tightening ring 5; a concave groove 11 is provided at the top of the grille 1, and the lower supporting plate 2 is movably embedded in the concave groove 11 at the top of the grille 1; the rubber pad 3 is arranged in a cavity formed by the concave groove 11 at the top of the grille 1 and the bottom of the lower supporting plate 2; the bottom of the rubber pad 3 contacts the bottom wall of the concave groove 11 at the top of the grille 1, and the top of the rubber pad 3 contacts the bottom of the lower supporting plate 2; a tightening ring 5 is provided between the upper end of the side of the rubber pad 3 and the side wall of the concave groove 11 on the grille 1; the main saddle 6 is installed on the top of the lower supporting plate 2.

[0045] During application: When the main cable saddle 6 is subjected to a vertical load from the main cable of the bridge or other structures, the main cable saddle 6 will transfer this part of the load to the lower plate 2, and the lower plate 2 will transfer the load to the rubber pad 3. Due to its elastic properties, the rubber pad 3 will begin to elastically deform. When subjected to the load, the rubber pad 3 will be compressed and deformed in the vertical direction, which can absorb and buffer the impact of the load, thereby reducing the vibration amplitude of the main cable saddle 6. The tightening ring 5 plays a role of restraining and fixing the rubber pad 3 when it is deformed, preventing the rubber pad 3 from displacing or sliding in the lateral direction, and ensuring that the rubber pad 3 always works within the designed cavity.

[0046] Example 2: Example 2 is basically the same as Example 1, except that: The grille 1 includes a connecting plate 12 and a grille frame 13. The bottom of the connecting plate 12 is connected to the top of the grille frame 13. A concave trough 11 is provided on the top of the connecting plate 12. The four corner side walls of the concave trough 11 are all arc-shaped. The length of the concave trough 11 is less than the length of the connecting plate 12. The width of the concave trough 11 is less than the width of the connecting plate 12. The height of the concave trough 11 is less than the height of the connecting plate 12. The side end surfaces around the bottom of the lower supporting plate 2 are provided with arc surfaces that match the arcs at the four corner side walls of the concave trough 11. The bottom side of the lower supporting plate 2 is adapted to the concave trough 11.

[0047] When applied: the four corner side walls of the concave trough 11 adopt an arc-shaped design, and the side end surfaces around the bottom of the lower supporting plate 2 are also provided with matching arc surfaces. This design enables the lower supporting plate 2 to be more tightly embedded in the concave trough 11, reducing the shaking and displacement of the lower supporting plate 2 in the horizontal direction. The tight adaptability effectively improves the stability of the entire system. When the main saddle 6 is subjected to load, the load is transferred to the rubber pad 3 through the lower supporting plate 2. The arc-shaped side walls can reduce stress concentration and make the load more evenly distributed on the rubber pad 3. The uniform stress state can improve the vibration reduction effect of the rubber pad 3. At the same time, it can also reduce the risk of damage to the rubber pad 3 due to local excessive deformation, and can reduce the local stress concentration of the rubber pad 3 when it is subjected to load. When the rubber pad 3 undergoes elastic deformation, the arc-shaped side walls can better guide the deformation of the rubber pad 3.

[0048] Example 3: Example 3 is basically the same as Example 1, except that: The rubber pad 3 includes an upper pad 31 and a lower pad 32. The top of the upper pad 31 contacts the bottom of the lower support plate 2, the bottom of the upper pad 31 is connected to the top of the lower pad 32, and the bottom of the lower pad 32 contacts the inner wall of the concave sink 11; the length of the upper pad 31 is smaller than the length of the lower pad 32, and the width of the upper pad 31 is smaller than the width of the lower pad 32; the side of the upper pad 31 is provided with a placement area 33 above the lower pad 32, and a clamping ring 5 is provided in the placement area 33; the inner side wall of the clamping ring 5 contacts the outer side of the upper pad 31, and the outer side of the clamping ring 5 contacts the inner wall of the concave sink 11; the top of the clamping ring 5 contacts the bottom of the lower support plate 2 The bottom of the tightening ring 5 contacts the top of the lower pad 32; the height of the tightening ring 5 is the same as that of the upper pad 31, and the height of the upper pad 31 is the same as that of the lower pad 32; the outer length of the tightening ring 5 is the same as the inner wall length of the concave sink groove 11, and the outer width of the tightening ring 5 is the same as the inner wall width of the concave sink groove 11; the tightening ring 5 is hollow annular; a plurality of equally spaced expansion grooves 51 are provided on the inner side of the tightening ring 5, and the expansion grooves 51 are in contact with the upper pad 31; the expansion grooves 51 are non-connected groove bodies, and the notches of the expansion grooves 51 are opened toward the direction of the upper pad 31; the end of the expansion groove 51 away from the upper pad 31 is arc-shaped.

[0049] When in use: the rubber pad 3 is divided into an upper pad 31 and a lower pad 32. The layered design can achieve multi-layer vibration reduction. The upper pad 31 directly contacts the lower support plate 2 and bears the load from the main saddle 6, while the lower pad 32 contacts the inner wall of the concave sink 11, transferring the load to the bottom, better absorbing and dispersing the load, and improving the vibration reduction effect. The clamping ring 5 tightly fixes the upper pad 31 and the lower pad 32 together to prevent the rubber pad 3 from lateral displacement or sliding when subjected to load. This fixing effect can improve the stability of the vibration reduction system and ensure that the rubber pad 3 maintains a good vibration reduction effect during long-term operation. A plurality of equally distributed expansion grooves 51 are provided on the inner side of the clamping ring 5. The expansion grooves 51 provide additional elastic adjustment function. When the rubber pad 3 is subjected to load, the expansion grooves 51 can allow the clamping ring 5 to elastically deform within a certain range, thereby better adapting to the deformation of the rubber pad 3, further improving the vibration reduction effect, and reducing vibration caused by load changes.

[0050] Example 4: Example 4 is basically the same as Example 1, except that: A dustproof ring 4 is arranged around the outer side of the lower supporting plate 2, and the end of the dustproof ring 4 away from the lower supporting plate 2 is clamped with the inner wall side of the concave sink groove 11; the upper end of the dustproof ring 4 is arranged above the lower supporting plate 2; a dustproof groove 21 is opened in the middle section of the side of the lower supporting plate 2, and the dustproof ring 4 is embedded in the dustproof groove 21, and the dustproof groove 21 is arranged around; the height of the dustproof groove 21 is less than the height of the lower supporting plate 2, and the thickness of the dustproof ring 4 is the same as the thickness of the dustproof groove 21.

[0051] When used: the dustproof ring 4 can fit tightly on the inner wall of the concave sink 11 to form a sealed dustproof barrier, effectively preventing external dust, debris and moisture from entering the cavity between the rubber pad 3 and the lower support plate 2, reducing the risk of damage to the rubber pad 3 due to dust accumulation or moisture erosion.

[0052] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A rubber vibration damping system for improving the stability of a main saddle, characterized by: The rubber vibration reduction system for improving the stability of the main saddle comprises a grille (1), a lower support plate (2), a rubber pad (3) and a clamping ring (5); A concave sink groove (11) is provided on the top of the grille (1), and the lower support plate (2) is movably embedded in the concave sink groove (11) on the top of the grille (1); The rubber pad (3) is arranged in a cavity formed by the concave sink (11) at the top of the grille (1) and the bottom of the lower support plate (2); The bottom of the rubber pad (3) contacts the bottom wall of the concave sink (11) at the top of the grille (1), and the top of the rubber pad (3) contacts the bottom of the lower support plate (2); A clamping ring (5) is provided between the upper end of the side surface of the rubber pad (3) and the side wall of the concave sink groove (11) on the grille (1); A main saddle (6) is installed on the top of the lower support plate (2).

2. The rubber vibration damping system for improving the stability of the main saddle according to claim 1, characterized in that: The grille (1) comprises a connecting plate (12) and a grille frame (13), the bottom of the connecting plate (12) is connected to the top of the grille frame (13), and the top of the connecting plate (12) is provided with a concave sink (11); The four corner side walls of the concave trough (11) are all arranged in an arc shape, the length of the concave trough (11) is smaller than the length of the connecting plate (12), and the width of the concave trough (11) is smaller than the width of the connecting plate (12); The height of the concave sink (11) is smaller than the height of the connecting plate (12).

3. The rubber vibration damping system for improving the stability of the main saddle according to claim 2, characterized in that: The side end surfaces around the bottom of the lower support plate (2) are provided with arc surfaces matching the arcs at the four corner side walls of the concave sink (11); The bottom side of the lower supporting plate (2) is adapted to the concave sink (11).

4. The rubber vibration damping system for improving the stability of the main saddle according to claim 1, characterized in that: The rubber pad (3) comprises an upper pad (31) and a lower pad (32), the top of the upper pad (31) contacts the bottom of the lower bearing plate (2), the bottom of the upper pad (31) is connected to the top of the lower pad (32), and the bottom of the lower pad (32) contacts the inner wall of the concave sink (11).

5. The rubber vibration damping system for improving the stability of the main saddle according to claim 4, characterized in that: The length of the upper pad (31) is smaller than the length of the lower pad (32), and the width of the upper pad (31) is smaller than the width of the lower pad (32); The side of the upper half pad (31) is provided with a placement area (33) above the lower half pad (32), and a tightening ring (5) is provided in the placement area (33); The inner side wall of the clamping ring (5) contacts the outer side of the upper half pad (31), and the outer side of the clamping ring (5) contacts the inner wall of the concave sink (11); The top of the clamping ring (5) contacts the bottom of the lower support plate (2), and the bottom of the clamping ring (5) contacts the top of the lower half pad (32).

6. The rubber vibration damping system for improving the stability of the main saddle according to claim 5, characterized in that: The height of the clamping ring (5) is the same as the height of the upper half pad (31), and the height of the upper half pad (31) is the same as the height of the lower half pad (32); The outer length of the clamping ring (5) is the same as the inner wall length of the concave sink groove (11), and the outer width of the clamping ring (5) is the same as the inner wall width of the concave sink groove (11).

7. The rubber vibration damping system for improving the stability of the main saddle according to claim 6, characterized in that: The clamping ring (5) is hollow and annular; The inner side of the clamping ring (5) is provided with a plurality of equally spaced expansion slots (51), and the expansion slots (51) are in contact with the upper half pad (31).

8. The rubber vibration damping system for improving the stability of the main saddle according to claim 7, characterized in that: The telescopic slot (51) is a non-connected slot body, and the slot opening of the telescopic slot (51) is opened in the direction of the upper half pad (31); The end of the telescopic slot (51) away from the upper half pad (31) is arc-shaped.

9. The rubber vibration damping system for improving the stability of the main saddle according to claim 1, characterized in that: A dustproof ring (4) is provided around the outer periphery of the lower support plate (2), and one end of the dustproof ring (4) away from the lower support plate (2) is engaged with the inner wall side of the concave sink groove (11); The upper end of the dustproof ring (4) is located above the lower supporting plate (2).

10. The rubber vibration damping system for improving the stability of the main saddle according to claim 9, characterized in that: A dustproof groove (21) is provided in the middle section of the side surface of the lower support plate (2), a dustproof ring (4) is embedded in the dustproof groove (21), and the dustproof groove (21) is arranged around; The height of the dustproof groove (21) is less than the height of the lower supporting plate (2), and the thickness of the dustproof ring (4) is the same as the thickness of the dustproof groove (21).

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