Damping reinforced rubber shock absorber and shock absorption mounting seat

Abstract

The invention discloses a damping reinforced rubber shock absorber and a shock absorption mounting seat with the rubber shock absorber. The damping-reinforced rubber shock absorber comprises a rubber body, an end plate I and an end plate II which are respectively adhered to the top and the bottom of the rubber body, and a plurality of steel plates which are alternately embedded into the rubber body in a vulcanization manner and are used for adjusting the rigidity. A liquid cavity filled with damping liquid is formed in the center of the rubber body, a horizontally-arranged damping plate is arranged in the middle of the liquid cavity, the rubber body is divided into a first rubber body and a second rubber body with the damping plate as the boundary, the liquid cavity is divided into a first liquid cavity and a second liquid cavity which belong to the first rubber body and the second rubber body, and the damping plate is provided with a plurality of vertically-communicated damping holes. The rigidity of the first rubber body is larger than that of the second rubber body, when the vertical pressure borne by the rubber bodies is increased, the volume of the first liquid cavity is forced to be decreased, the volume of the second liquid cavity is forced to be increased, and damping liquid in the first liquid cavity enters the second liquid cavity through the damping holes. The damper has the advantages that a large amount of vibration kinetic energy can be absorbed, and the ideal damping effect far higher than that in the prior art is obtained.

Description

Technical Field

[0001] The invention relates to a damping reinforced rubber vibration isolator and a vibration reduction mounting seat, belonging to the technical field of equipment vibration reduction. Background Art

[0002] In order to effectively suppress the vibration generated by the operation of the equipment, keep it in good working condition and reduce the impact of noise on the environment, many devices are installed on vibration-damping mounts with vibration-damping functions.

[0003] The vibration-damping mount involves a rubber vibration damper, which can be set in a variety of ways, most of which adjust the stiffness in various directions as needed.

[0004] The rubber damper of the vibration damping mount of a special type of equipment is required to have damping characteristics that exceed the damping effect of the rubber body itself, and to absorb a large amount of energy during the vibration damping process to maintain the long-term stability of the equipment. For example, the vibration damping mount used for a large wind turbine gearbox, because the wind turbine gearbox is set at a high altitude supported by the tower, its supporting environment is far less stable than the ground, and the vibration of the gearbox during operation is easily amplified. If the rubber damper of the vibration damping mount cannot absorb a large amount of vibration kinetic energy, it will not only be detrimental to the stable operation of the gearbox itself, but also the entire wind power facility above the tower will be in an unstable operating state. In addition, the gearbox is in an almost uninterrupted operating state for a long time, and this instability will continue to intensify, greatly shortening the service life of the entire wind power equipment.

[0005] In order to solve the above problems, the prior art has improved the damping performance of the vibration damping mount, especially the rubber vibration damper, and the vibration damping performance has been significantly improved, but the following defects still exist: 1. The damping performance of rubber shock absorbers is still difficult to reach the ideal level, and most of its improvements are still limited to the improvement of the rubber material itself and its structure; Second, the structure is too complicated, which increases the difficulty of production and is prone to aging and failure, and must be regularly maintained and replaced. Summary of the invention

[0006] The technical problem to be solved by the present invention is: how to further improve the damping efficiency of the vibration-damping mounting seat, especially the rubber vibration damper thereof, in a simpler way.

[0007] In view of the above problems, the technical solution proposed by the present invention is: A damping reinforced rubber shock absorber comprises a rubber body, an end plate 1 and an end plate 2 respectively bonded to the top and bottom of the rubber body, and a plurality of steel plates alternately embedded in the rubber body in a vulcanized manner for adjusting stiffness. The center of the rubber body has a liquid cavity filled with damping liquid, the middle of the liquid cavity has a horizontally arranged damping plate, the rubber body is divided into a rubber body 1 and a rubber body 2 by the damping plate, and the liquid cavity is divided into a liquid cavity 1 and a liquid cavity 2 belonging to the rubber body 1 and the rubber body 2 respectively, the damping plate has a plurality of damping holes communicating with each other up and down, the stiffness of the rubber body 1 is greater than the stiffness of the rubber body 2, when the vertical pressure on the rubber body increases, the volume of the liquid cavity 1 is forced to decrease and the volume of the liquid cavity 2 is forced to increase, and the damping liquid in the liquid cavity 1 enters the liquid cavity 2 through the damping holes.

[0008] The steel plates in the rubber body are annular in shape, and the arrangement density of the steel plates in the first rubber body is greater than the arrangement density of the steel plates in the second rubber body.

[0009] The rubber body 1 and the rubber body 2 are arranged in a separate combination, and the connecting parts of the rubber body 1 and the rubber body 2 respectively have an annular connecting plate 1 and a connecting plate 2. The outer peripheries of the connecting plate 1 and the connecting plate 2 extend out of the rubber body 1 and the rubber body 2 respectively, and flange edges 1 and flange edges 2 with bolt connection holes are formed respectively. The rubber body 1 and the rubber body 2 are fastened and connected by bolts acting on the flange edges 1 and the flange edges 2.

[0010] The inner ring areas of the annular connecting plates 1 and 2 are provided with L-shaped notches 1 and 2 facing each other, the L-shaped notch 1 has a rubber layer 1 integrated with the rubber body 1, the L-shaped notch 2 has a rubber layer 2 integrated with the rubber body 2, and the outer edge of the damping plate is pressed between the rubber layer 1 and the rubber layer 2.

[0011] Through holes are provided on flange edge 1 and flange edge 2 on both sides of the rubber body, threaded hole 1 is correspondingly provided on both sides of end plate 2, and compression bolts are provided between connecting plate 1 and end plate 2. After the compression bolts are inserted from the through holes, the threaded ends thereof are screwed into the threaded holes 1 provided on end plate 2, and the screw handles thereof can be restricted on connecting plate 1. The rubber body 2 can be compressed by rotating the screw handles.

[0012] A circular recess 1 is provided on the outer side surfaces of the end plate 1 and the end plate 2, and a disc spring 1 is provided in the recess 1.

[0013] A vibration-damping mounting seat with a rubber vibration damper comprises a seat frame, wherein the seat frame comprises a top seat plate, a base plate, and side columns for supporting and fixing the top seat plate and both sides of the base plate. There are two rubber vibration dampers, which are mounted opposite to each other on the bottom surface of the top seat plate and the upper surface of the base plate, forming a direct installation space between the two rubber vibration dampers.

[0014] The vibration-damping mounting seat also includes a mounting body arranged in the direct mounting space, and a through indirect mounting space is arranged in the mounting body.

[0015] The vibration-damping mounting seat also includes a clamping bolt, and a second threaded hole is provided on the top wall of the indirect mounting space. The bolt handle of the clamping bolt is screwed into the second threaded hole downward and upward, and the bolt handle is used to clamp the mounting part of the equipment by rotating the clamping bolt.

[0016] The vibration-damping mounting seat also includes a clamping plate arranged under the clamping bolt for pressing the equipment mounting part. A circular recess 2 is arranged on the top surface of the clamping plate corresponding to the bolt handle of the clamping bolt, and a disc spring 2 that can be clamped by the bolt handle is arranged in the recess 2. Beneficial Effects

[0017] 1. It can absorb a large amount of vibration kinetic energy and obtain an ideal damping effect far higher than the existing technology; 2. The damping flow of the liquid between the first and second liquid chambers during vibration is achieved by relying on the expansion and contraction stiffness of the first and second liquid chambers, making the damping structure simpler than any improvement in the prior art, and reducing the manufacturing and subsequent maintenance and replacement costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional schematic diagram of the rubber vibration damper described in Example 1; Figure 2 for Figure 1 A partial schematic diagram of Figure 3 A schematic cross-sectional view of the rubber vibration damper according to the second embodiment; Figure 4 It is a plan view of the vibration reduction mounting seat described in the third embodiment; Figure 5 This is a schematic diagram of the application of the vibration reduction mounting seat described in Example 3; Figure 6 This is a schematic plan view of the vibration reduction mounting seat described in Example 4; Figure 7 A schematic plan view of assembling the compression bolts of the vibration-damping mounting seat according to the fourth embodiment; Figure 8 This is a plan view of the vibration reduction mounting seat described in Example 5; Fig. 9 It is a schematic diagram of the structural relationship between the compression bolt and the disc spring 2 described in the fifth embodiment; Fig.10 A schematic diagram of a wind turbine gearbox to be installed; Fig.11 A schematic diagram of the equipment is shown below.

[0019] In the figure: 100, rubber shock absorber; 200, seat frame; 1, rubber body; 101, rubber body 1; 1011, rubber layer 1; 102, rubber body 2; 1021, rubber layer 2; 103, steel plate; 2, end plate 1; 3, end plate 2; 4, liquid cavity; 401, liquid cavity 1; 402, liquid cavity 2; 403, damping plate; 4031, damping hole; 5, pit 1; 501, disc spring 1; 6, connecting plate 1; 601, flange 1; 602, L-shaped notch Mouth one; 7, connecting plate two; 701, flange edge two; 702, L-shaped notch two; 8, bolt; 9, compression bolt; 10, through hole; 11, threaded hole one; 12, top seat plate; 13, base plate; 14, side column; 15, direct installation space; 16, installation body; 1601, indirect installation space; 17, fixing bolt; 1701, bolt handle; 18, fixing plate; 1801, pit two; 19, disc spring two; 20, threaded hole two; 21, installation part. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with embodiments and drawings: Before reading the following embodiments in conjunction with the relevant drawings, please refer to Fig.10 , 11 The mounting member 21 of the device to be mounted is shown. Embodiment 1

[0021] like Figure 1 , 2As shown, a damping reinforced rubber shock absorber comprises a rubber body 1, an end plate 1 2 and an end plate 2 3 respectively bonded to the top and bottom of the rubber body 1, and a plurality of steel plates 103 alternately embedded in the rubber body 1 in a vulcanized manner for adjusting stiffness. The center of the rubber body 1 has a liquid cavity 4 filled with damping liquid, and a damping plate 403 is horizontally arranged in the middle of the liquid cavity 4. The rubber body 1 is divided into a rubber body 1 101 and a rubber body 2 102 by the damping plate 403 as a boundary, and the liquid cavity 4 is divided into a liquid cavity 1 401 and a liquid cavity 2 402 belonging to the rubber body 1 101 and the rubber body 2 102 respectively. The damping plate 403 has a plurality of damping holes 4031 communicating with each other from top to bottom. The stiffness of the rubber body 101 is greater than that of the rubber body 2 102. When the vertical pressure on the rubber body 1 increases, the volume of the liquid chamber 1 401 is forced to decrease and the volume of the liquid chamber 2 402 is forced to increase, and the damping liquid in the liquid chamber 1 401 enters the liquid chamber 2 402 through the damping hole 4031; when the vertical pressure on the rubber body 1 decreases and recovers, the volumes of the liquid chamber 1 401 and the liquid chamber 2 402 return to their original sizes, and in this process, the damping liquid in the liquid chamber 2 402 enters the liquid chamber 1 401 through the damping hole 4031. In this way, when the damping liquid passes through the damping hole 4031, a large amount of vibration kinetic energy is absorbed, thereby obtaining an ideal damping effect far higher than the material of the rubber body 1 itself, and this method of relying on the expansion and contraction stiffness of the liquid chamber 1 401 and the liquid chamber 2 402 to achieve the liquid flow between the liquid chamber 1 401 and the liquid chamber 2 402 during vibration makes the damping structure more concise compared with any improvement of the prior art, and reduces the cost of manufacturing and subsequent maintenance and replacement.

[0022] The steel plate 103 in the rubber body 1 is annular, and the density of the steel plate 103 in the rubber body 1 101 is greater than the density of the steel plate 103 in the rubber body 2 102 . In this way, the stiffness of the rubber body 1 101 is greater than the stiffness of the rubber body 2 102 .

[0023] A circular recess 5 is provided on the outer side surface of the end plate 2 and the end plate 3, and a disc spring 501 is provided in the recess 5. When used, the disc spring 501 will be pre-compressed, so that when the creep elasticity of the rubber of the rubber body 1 is reduced, the disc spring 501 can provide compensation in time.

[0024] To facilitate vulcanization and assembly, the rubber body 101 and the rubber body 2 102 are preferably arranged as a separate combination, and the joints of the rubber body 101 and the rubber body 2 102 respectively have an annular connecting plate 1 6 and a connecting plate 2 7, and the outer circumferences of the connecting plate 1 6 and the connecting plate 2 7 extend out of the rubber body 101 and the rubber body 2 respectively, forming a flange edge 1 601 and a flange edge 2 701 with bolt connection holes respectively, and the rubber body 101 and the rubber body 2 102 are fastened by bolts 8 acting on the flange edge 1 601 and the flange edge 2 701.

[0025] The inner ring areas of the annular connecting plates 1 6 and 2 7 are provided with L-shaped notches 1 602 and L-shaped notches 2 702 facing each other. The L-shaped notch 1 602 has a rubber layer 1011 integrated with the rubber body 101, and the L-shaped notch 2 702 has a rubber layer 2 1021 integrated with the rubber body 2 102. The outer edge of the damping plate 403 is pressed between the rubber layer 1011 and the rubber layer 2 1021, so that the liquid chamber 4 is sealed while the rubber body 101 and the rubber body 2 are combined. Embodiment 2

[0026] like Figure 3 As shown, it is a further improvement of the first embodiment. Through holes 10 are provided on the flange edge 1 601 and the flange edge 2 701 on both sides of the rubber body 1, threaded holes 11 are provided on both sides of the end plate 2 3, and compression bolts 9 are provided between the connecting plate 1 6 and the end plate 2 3. After the compression bolts 9 are inserted from the through holes 10, the threaded ends thereof are screwed into the threaded holes 11 provided on the end plate 2 3, and the screw handles thereof can be restricted on the connecting plate 1 6. The rubber body 2 102 can be compressed by rotating the screw handles. Its function is that in the application of the third to fifth embodiments described later, the rubber body 2 102 can be compressed so that the clamped mounting member 21 can be easily removed. Embodiment 3

[0027] like Figure 4 , 5 As shown, a vibration-damping mounting seat with the above-mentioned rubber vibration damper includes a frame 200, the frame 200 includes a top seat plate 12, a base plate 13, and side columns 14 for supporting and fixing the top seat plate 12 and the base plate 13 on both sides. There are two rubber vibration dampers 100, which are installed oppositely on the bottom surface of the top seat plate 12 and the upper surface of the base plate 13, and a direct installation space 15 is formed between the two rubber vibration dampers 100. In this way, when installing the equipment, the equipment mounting member 21 can be directly installed in the direct installation space 15 between the two rubber vibration dampers 100 arranged oppositely. Embodiment 4

[0028] like Figure 6 , 7 As shown, the difference from the third embodiment is that the vibration-damping mounting seat further includes a mounting body 16 disposed in the direct mounting space 15 , and a through indirect mounting space 1601 is disposed in the mounting body 16 .

[0029] Furthermore, the above-mentioned vibration-damping mounting seat also includes a clamping bolt 17, and a threaded hole 20 is provided on the top wall of the indirect mounting space 1601. The bolt handle 1701 of the clamping bolt 17 is screwed downward and upward into the threaded hole 20, and the bolt handle 1701 is used to tighten the mounting part 21 of the equipment by rotating the clamping bolt 17. Embodiment 5

[0030] like Figure 8 , 9 As shown, it is a further improvement of the fourth embodiment: the above-mentioned vibration-damping mounting seat also includes a clamping plate 18 provided under the clamping bolt 17 for pressing the equipment mounting part 21, and a circular recess 1801 is provided on the top surface of the clamping plate 18 corresponding to the bolt handle 1701 of the clamping bolt 17, and a disc spring 19 that can be pressed by the bolt handle 1701 is provided in the recess 1801. When used, the clamping plate 18 is pressed on the mounting part 21 to be installed, and then the bolt handle 1701 of the clamping bolt 17 is rotated to press the disc spring 19 on the clamping plate 18, and the mounting part 21 of the equipment is pressed by the disc spring 19.

[0031] The above embodiments are only used to more clearly describe the present invention and cannot be regarded as limiting the protection scope of the present invention. Any modifications in equivalent forms should be regarded as falling within the protection scope of the present invention.

Claims

1. A damping reinforced rubber shock absorber, comprising a rubber body (1), an end plate 1 (2) and an end plate 2 (3) respectively bonded to the top and bottom of the rubber body (1), and a plurality of steel plates (103) alternately embedded in the rubber body (1) by vulcanization for adjusting stiffness, characterized in that: The center of the rubber body (1) has a liquid cavity (4) filled with damping liquid. The middle of the liquid cavity (4) has a damping plate (403) arranged horizontally. The damping plate (403) serves as a boundary to divide the rubber body (1) into a rubber body 1 (101) and a rubber body 2 (102). The liquid cavity (4) is divided into a liquid cavity 1 (401) and a liquid cavity 2 (402) belonging to the rubber body 1 (101) and the rubber body 2 (102), respectively. The damping plate (403) has a plurality of damping holes (4031) communicating with each other from top to bottom. The rigidity of the rubber body 1 (101) is greater than that of the rubber body 2 (102). When the vertical pressure applied to the rubber body (1) increases, the volume of the liquid cavity 1 (401) is forced to decrease and the volume of the liquid cavity 2 (402) is forced to increase. The damping liquid in the liquid cavity 1 (401) enters the liquid cavity 2 (402) through the damping holes (4031).

2. The damping-enhanced rubber shock absorber according to claim 1, characterized in that: The steel plates (103) in the rubber body (1) are annular in shape, and the arrangement density of the steel plates (103) in the first rubber body (101) is greater than the arrangement density of the steel plates (103) in the second rubber body (102).

3. The damping-enhanced rubber shock absorber according to claim 1, characterized in that: The rubber body 1 (101) and the rubber body 2 (102) are arranged in a separate assembly. The joints of the rubber body 1 (101) and the rubber body 2 (102) are provided with an annular connecting plate 1 (6) and a connecting plate 2 (7), respectively. The outer circumferences of the connecting plate 1 (6) and the connecting plate 2 (7) extend out of the rubber body 1 (101) and the rubber body 2, respectively, to form a flange edge 1 (601) and a flange edge 2 (701) with bolt connection holes, respectively. The rubber body 1 (101) and the rubber body 2 (102) are fastened and connected by bolts (8) acting on the flange edge 1 (601) and the flange edge 2 (701).

4. The damping-enhanced rubber vibration absorber according to claim 3, characterized in that: The annular connecting plate 1 (6) and the connecting plate 2 (7) are provided with L-shaped notch 1 (602) and L-shaped notch 2 (702) facing each other in the inner ring area, the L-shaped notch 1 (602) has a rubber layer 1 (1011) integrated with the rubber body 1 (101), and the L-shaped notch 2 (702) has a rubber layer 2 (1021) integrated with the rubber body 2 (102), and the outer edge of the damping plate (403) is pressed between the rubber layer 1 (1011) and the rubber layer 2 (1021).

5. The damping-enhanced rubber vibration absorber according to claim 3, characterized in that: Through holes (10) are provided on flange edge 1 (601) and flange edge 2 (701) on both sides of the rubber body (1), threaded holes (11) are provided on both sides of the end plate 2 (3) correspondingly, and compression bolts (9) are provided between the connecting plate 1 (6) and the end plate 2 (3). After the compression bolts (9) are inserted from the through holes (10), the threaded ends of the compression bolts (9) are screwed into the threaded holes (11) provided on the end plate 2 (3), and the screw handles thereof can be restricted on the connecting plate 1 (6). By rotating the screw handles, the rubber body 2 (102) can be compressed.

6. The damping-enhanced rubber vibration absorber according to claim 1, characterized in that: A circular recess 1 (5) is provided on the outer side surfaces of the end plate 1 (2) and the end plate 2 (3), and a disc spring 1 (501) is provided in the recess 1 (5).

7. A vibration damping mounting seat having the rubber vibration damper according to claim 1, characterized in that: The invention comprises a seat frame (200), wherein the seat frame (200) comprises a top seat plate (12), a base plate (13), and side columns (14) for supporting and fixing the top seat plate (12) and the base plate (13) on both sides; the rubber vibration dampers (100) are provided in two locations and are mounted opposite to each other on the bottom surface of the top seat plate (12) and the upper surface of the base plate (13); and a direct mounting space (15) is formed between the two rubber vibration dampers (100).

8. The vibration-damping mounting seat according to claim 7, characterized in that: It also includes a mounting body (16) disposed in the direct mounting space (15), wherein a through indirect mounting space (1601) is disposed in the mounting body (16).

9. The vibration-damping mounting seat according to claim 8, characterized in that: It also includes a clamping bolt (17), and a second threaded hole (20) is provided on the top wall of the indirect installation space (1601). The bolt handle (1701) of the clamping bolt (17) is screwed into the second threaded hole (20) downward and upward, and the bolt handle (1701) is used to press the mounting part (21) of the device by rotating the clamping bolt (17).

10. The vibration-damping mounting seat according to claim 9, characterized in that: It also includes a clamping plate (18) disposed under the clamping bolt (17) for pressing the equipment mounting member (21), wherein a second circular recess (1801) is disposed on the top surface of the clamping plate (18) corresponding to the bolt handle (1701) of the clamping bolt (17), and a second disc spring (19) capable of being compressed by the bolt handle (1701) is disposed in the second recess (1801).

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