Low-decibel damping device

Abstract

The utility model discloses a low-decibel damping device and belongs to the technical field of damping devices. Vertical plates are fixedly connected to the front side and the rear side of the lower rack correspondingly, grooves are formed in the bottoms of the vertical plates, U-shaped columns are arranged on the inner walls of the grooves in an attached mode, first screws are fixedly connected to the upper surfaces of the U-shaped columns, first locknuts are in threaded connection to the surfaces of the first screws, and damping steel plates are arranged on the upper surface of the lower rack and the inner walls of the U-shaped columns in an attached mode correspondingly. According to the low-decibel damping device, the stability and the bending resistance of the structure are improved through the damping steel plates of the stacked structure, part abrasion caused by vibration is reduced, the service life of equipment is prolonged, meanwhile, friction energy consumption between the stacked steel plates and damping materials on the surfaces of the damping steel plates can further effectively dissipate vibration energy, and the service life of the equipment is prolonged. The damping device can adapt to different damping occasions and cope with complex impact, and compared with a traditional damping device, the damping effect is better.

Description

Technical Field

[0001] This utility model relates to the field of shock absorption device technology, specifically a low-decibel shock absorption device. Background Technology

[0002] Traditional vibration damping devices mostly use materials such as springs and rubber. Spring vibration dampers are prone to resonance during operation, and their damping stroke is fixed, making them poorly adaptable to complex impacts and unable to effectively cope with vibrations of different frequencies and intensities. Rubber vibration dampers are greatly affected by temperature and aging, have unstable damping characteristics, and limited energy absorption. Their damping effect will significantly decrease after prolonged use. At the same time, traditional vibration damping devices often generate a lot of noise during the damping process, which has an adverse impact on the working environment and personnel. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, the purpose of this invention is to provide a low-decibel vibration damping device to solve the problems of easy resonance, poor adaptability, unstable damping characteristics, and high noise in traditional vibration damping devices.

[0004] To achieve the above-mentioned objective, the present invention provides a low-decibel vibration damping device comprising a lower frame, wherein vertical plates are fixedly connected to both the front and rear sides of the lower frame, a groove is provided at the bottom of the vertical plate, a U-shaped column is fitted into the inner wall of the groove, a first screw is fixedly connected to the upper surface of the U-shaped column, and a first anti-loosening nut is threaded onto the surface of the first screw, a vibration damping steel plate is fitted into the upper surface of the lower frame and the inner wall of the U-shaped column, a fixing plate is fitted into the upper surface of the vibration damping steel plate, an installation hole is provided inside the fixing plate, the inner wall of the installation hole is fitted into the surface of the first screw, a spring seat is fixedly connected to the upper surface of the fixing plate, a vibration damping spring is fitted into the inner wall of the spring seat, an adjusting bracket is fitted into the inner wall of the vibration damping spring, an upper frame is fixedly connected to the upper surface of the adjusting bracket, a connecting bracket is fixedly connected to the bottom of the upper frame, and a second cylinder is fixedly connected to both the left and right sides of the vibration damping steel plate, the inner wall of the second cylinder being fitted into the surface of the connecting bracket.

[0005] Furthermore, the center of the fixed plate and the center of the shock-absorbing steel plate are on the same vertical line, and the spring seat is located in the middle of the fixed plate.

[0006] Furthermore, the adjusting bracket includes a second screw, a threaded cylinder, and a rotating block. The upper surface of the second screw is fixedly connected to the bottom of the upper frame, the surface of the second screw is threadedly connected to the inner wall of the threaded cylinder, the surface of the threaded cylinder is in contact with the inner wall of the shock-absorbing spring, the surface of the threaded cylinder is fixedly connected to the inner wall of the rotating block, and the bottom of the rotating block is in contact with the upper surface of the shock-absorbing spring.

[0007] Furthermore, the connecting bracket includes a U-shaped plate, a cylinder, a first bearing, a connecting ring, a second bearing, a third screw, and a second anti-loosening nut. The upper surface of the U-shaped plate is fixedly connected to the bottom of the upper frame. Both the front and rear ends of the cylinder are fixedly connected to the inner wall of the U-shaped plate. The surface of the cylinder is fixedly connected to the inner ring of the first bearing. The outer rings of the first and second bearings are both fixedly connected to the inner wall of the connecting ring. The inner rings of the second bearing and the inner walls of the second cylinder are both in contact with the surface of the third screw. The surface of the third screw is threadedly connected to the inner wall of the second anti-loosening nut.

[0008] Furthermore, the second bearing is located between the second cylinder and the second lock nut.

[0009] Furthermore, a rectangular groove is provided on the front side of the second screw, and a circular hole is provided on the front side of the threaded cylinder. Positioning bolts are fitted to the inner walls of the circular hole and the inner walls of the rectangular groove. A third anti-loosening nut is threaded onto the surface of the positioning bolt. Connecting posts are fixedly connected to the left and right sides of the third anti-loosening nut and the front side of the threaded cylinder.

[0010] Furthermore, the width of the rectangular groove is equal to the diameter of the positioning bolt, and the length of the rectangular groove is greater than the diameter of the positioning bolt.

[0011] Furthermore, the damping steel plate is composed of multiple stacked steel plates, and the surface of the damping steel plate is coated with damping material.

[0012] Compared with the prior art, the technical effects achieved by this utility model are as follows:

[0013] 1. The low-decibel vibration damping device of this utility model increases the stability and bending resistance of the structure by stacking vibration damping steel plates, reduces the wear of components caused by vibration, and extends the service life of the equipment. At the same time, the friction energy dissipation between the stacked steel plates and the damping material on the surface of the vibration damping steel plates can further effectively dissipate vibration energy. It can adapt to different vibration damping occasions and cope with complex impacts. Compared with traditional vibration damping devices, it has a better vibration damping effect.

[0014] 2. The low-decibel shock absorption device of this utility model, through the cooperation of the second threaded rod, the threaded cylinder and the rotating block, allows the user to adjust the initial length of the shock absorption spring by rotating the rotating block, thereby making the shock absorption capacity of the low-decibel shock absorption device adjustable according to different usage scenarios. Attached Figure Description

[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0016] Figure 1 This is a front view of the structure of this utility model.

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 yes Figure 1 Top view of the lower frame.

[0019] Figure 4 yes Figure 1 Front view of the lower rack.

[0020] Figure 5 yes Figure 1 Side view of the U-shaped column.

[0021] Figure 6 yes Figure 1 Front view of the middle damping steel plate.

[0022] Figure 7 yes Figure 1 Side view of the middle damping steel plate.

[0023] Figure 8 yes Figure 1 Top view of the fixed plate.

[0024] Figure 9 yes Figure 1 Front view of the adjustable bracket.

[0025] Figure 10 yes Figure 9 Sectional view at point AA.

[0026] Figure 11 yes Figure 1 Front view of the threaded cylinder.

[0027] Figure 12 yes Figure 1 Front view of the connecting bracket.

[0028] Figure 13 yes Figure 12 Sectional view at point CC.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Lower frame; 2. Vertical plate; 3. Groove; 4. U-shaped column; 5. First screw; 6. First anti-loosening nut; 7. Shock-absorbing steel plate; 8. Fixing plate; 9. Mounting hole; 10. Spring seat; 11. Shock-absorbing spring; 12. Adjusting bracket; 121. Second screw; 122. Threaded cylinder; 123. Rotating block; 13. Upper frame; 14. Connecting bracket; 141. U-shaped plate; 142. Cylindrical column; 143. First bearing; 144. Connecting ring; 145. Second bearing; 146. Third screw; 147. Second anti-loosening nut; 15. Second cylinder; 16. Rectangular groove; 17. Circular hole; 18. Positioning bolt; 19. Third anti-loosening nut; 20. Connecting column. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , 13As shown, in this utility model, the lower frame 1 of a low-decibel shock absorption device has vertical plates 2 fixedly connected to both the front and rear sides. A groove 3 is provided at the bottom of the vertical plate 2, and a U-shaped column 4 is fitted into the inner wall of the groove 3. A first screw 5 is fixedly connected to the upper surface of the U-shaped column 4, and a first anti-loosening nut 6 is threaded onto the surface of the first screw 5. Shock-absorbing steel plates 7 are fitted into the upper surface of the lower frame 1 and the inner wall of the U-shaped column 4. A fixing plate 8 is fitted into the upper surface of the shock-absorbing steel plate 7, and mounting holes are provided inside the fixing plate 8. 9. The inner wall of the mounting hole 9 is in contact with the surface of the first screw 5. A spring seat 10 is fixedly connected to the upper surface of the fixing plate 8. A shock-absorbing spring 11 is in contact with the inner wall of the spring seat 10. An adjusting bracket 12 is in contact with the inner wall of the shock-absorbing spring 11. An upper frame 13 is fixedly connected to the upper surface of the adjusting bracket 12. A connecting bracket 14 is fixedly connected to the bottom of the upper frame 13. A second cylinder 15 is fixedly connected to both the left and right sides of the shock-absorbing steel plate 7. The inner wall of the second cylinder 15 is in contact with the surface of the connecting bracket 14.

[0034] The center of the fixed plate 8 and the center of the damping steel plate 7 are on the same vertical line. The spring seat 10 is located in the middle of the fixed plate 8. The damping steel plate 7 is made of multiple steel plates stacked together. The stacked steel plates are bound together by a sleeve, and the surface of the damping steel plate 7 is covered with damping material.

[0035] The connecting bracket 14 includes a U-shaped plate 141, a cylinder 142, a first bearing 143, a connecting ring 144, a second bearing 145, a third screw 146, and a second anti-loosening nut 147. The upper surface of the U-shaped plate 141 is fixedly connected to the bottom of the upper frame 13. Both the front and rear ends of the cylinder 142 are fixedly connected to the inner wall of the U-shaped plate 141. The surface of the cylinder 142 is fixedly connected to the inner ring of the first bearing 143. The outer rings of the first bearing 143 and the second bearing 145 are both fixedly connected to the inner wall of the connecting ring 144. The inner ring of the second bearing 145 and the inner wall of the second cylinder 15 are both in contact with the surface of the third screw 146. The surface of the third screw 146 is threadedly connected to the inner wall of the second anti-loosening nut 147. The second bearing 145 is located between the second cylinder 15 and the second anti-loosening nut 147.

[0036] It should be noted that when the U-shaped column 4 contacts the groove 3, the U-shaped plate 141 can be positioned through the groove 3. When the first anti-loosening nut 6 is screwed onto the first screw 5, the fixing plate 8 can be fixed onto the first screw 5 through the cooperation of the first anti-loosening nut 6 and the first screw 5. And through the cooperation of the vertical plate 2, the groove 3, the U-shaped column 4, the first screw 5, the first anti-loosening nut 6, the fixing plate 8 and the mounting hole 9, the shock-absorbing steel plate 7 can be fixed onto the lower frame 1.

[0037] When the third screw 146 is inserted into the second bearing 145 and the second anti-loosening nut 147 is screwed onto the third screw 146, the second cylinder 15 can be fixed onto the connecting bracket 14 through the cooperation of the third screw 146 and the second anti-loosening nut 147. The shock-absorbing steel plate 7 is connected to the connecting bracket 14 through the second cylinder 15. The connecting ring 144 can rotate around the cylinder 142 through the first bearing 143. At the same time, the third screw 146 can rotate freely through the second bearing 145. When the shock-absorbing steel plate 7 deforms, the connecting bracket 14 will not affect the deformation of the shock-absorbing steel plate 7 because the second cylinder 15 can rotate around the cylinder 142.

[0038] When the upper frame 13 is subjected to vibration and impact, the damping spring 11 and the damping steel plate 7 undergo elastic deformation under the impact force. After the deformation recovers, the vibration and impact are consumed. The stacked structure of the damping steel plate 7 increases the stability and bending resistance of the structure, reduces the wear of components caused by vibration, and extends the service life of the equipment. At the same time, the frictional energy dissipation between the stacked steel plates and the damping material on the surface of the damping steel plate 7 can further effectively dissipate vibration energy. In addition, during the damping process, the damping material on the surface of the damping steel plate 7 can effectively suppress the vibration transmission between the steel plates, reduce the generation of noise, reduce noise during the buffering process, and create a quieter working environment. The damping material attached to the surface of the damping steel plate 7 is butyl rubber.

[0039] The adjusting bracket 12 includes a second screw 121, a threaded cylinder 122, and a rotating block 123. The upper surface of the second screw 121 is fixedly connected to the bottom of the upper frame 13. The surface of the second screw 121 is threadedly connected to the inner wall of the threaded cylinder 122. The surface of the threaded cylinder 122 is in contact with the inner wall of the shock-absorbing spring 11. The surface of the threaded cylinder 122 is fixedly connected to the inner wall of the rotating block 123. The bottom of the rotating block 123 is in contact with the upper surface of the shock-absorbing spring 11.

[0040] It should be noted that, through the cooperation of the second threaded rod, the threaded cylinder 122 and the rotating block 123, the user can adjust the initial length of the damping spring 11 by rotating the rotating block 123, thereby allowing the damping capacity of the low-decibel damping device to be adjusted according to different usage scenarios.

[0041] The second screw 121 has a rectangular groove 16 on its front side, and the threaded cylinder 122 has a round hole 17 on its front side. The inner wall of the round hole 17 and the inner wall of the rectangular groove 16 are fitted with positioning bolts 18. The surface of the positioning bolts 18 is threaded with a third anti-loosening nut 19. The left and right sides of the third anti-loosening nut 19 and the front side of the threaded cylinder 122 are fixedly connected with connecting posts 20.

[0042] The width of the rectangular groove 16 is equal to the diameter of the positioning bolt 18, and the length of the rectangular groove 16 is greater than the diameter of the positioning bolt 18.

[0043] It should be noted that the third anti-loosening nut 19 allows the user to rotate the positioning bolt 18, which can be inserted into or removed from the rectangular groove 16. When the positioning bolt 18 contacts the rectangular groove 16, the engagement between the positioning bolt 18 and the rectangular groove 16 prevents the threaded cylinder 122 from rotating, thus ensuring that the position of the threaded cylinder 122 will not change due to vibration during the use of the low-decibel vibration damping device.

[0044] The working principle of this utility model is as follows: When the upper frame 13 is subjected to vibration and impact, the shock-absorbing spring 11 and the shock-absorbing steel plate 7 will undergo elastic deformation under the action of impact force. After the deformation is restored, the vibration and impact will be consumed. At the same time, the friction energy dissipation between the stacked steel plates and the damping material on the surface of the shock-absorbing steel plate 7 can further effectively dissipate the vibration energy. At this time, the vibration and impact on the upper frame 13 can be reduced.

[0045] When it is necessary to change the damping capacity of the low-decibel damping device, firstly, by rotating the positioning bolt 18, the positioning bolt 18 is separated from the rectangular groove 16. Then, by rotating the rotating block 123, the position of the threaded cylinder 122 on the second screw 121 is changed. At this time, by changing the position of the threaded cylinder 122 on the second screw 121, the initial length of the damping spring 11 can be adjusted. By adjusting the initial length of the damping spring 11, the damping capacity of the low-decibel damping device can be adjusted according to different usage scenarios. After the position of the threaded cylinder 122 is adjusted, by rotating the positioning bolt 18, the positioning bolt 18 is brought into contact with the inner wall of the rectangular groove 16. At this time, through the cooperation of the positioning bolt 18 and the rectangular groove 16, the threaded cylinder 122 cannot be rotated.

[0046] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A low-decibel vibration damping device, characterized in that: The machine includes a lower frame (1), with vertical plates (2) fixedly connected to both the front and rear sides of the lower frame (1). A groove (3) is provided at the bottom of the vertical plate (2), and a U-shaped column (4) is fitted to the inner wall of the groove (3). A first screw (5) is fixedly connected to the upper surface of the U-shaped column (4), and a first anti-loosening nut (6) is threaded onto the surface of the first screw (5). A shock-absorbing steel plate (7) is fitted to the upper surface of the lower frame (1) and the inner wall of the U-shaped column (4). A fixing plate (8) is fitted to the upper surface of the shock-absorbing steel plate (7), and an installation hole (9) is provided inside the fixing plate (8). The inner wall of the mounting hole (9) is in contact with the surface of the first screw (5). A spring seat (10) is fixedly connected to the upper surface of the fixing plate (8). A shock-absorbing spring (11) is attached to the inner wall of the spring seat (10). An adjusting bracket (12) is attached to the inner wall of the shock-absorbing spring (11). An upper frame (13) is fixedly connected to the upper surface of the adjusting bracket (12). A connecting bracket (14) is fixedly connected to the bottom of the upper frame (13). A second cylinder (15) is fixedly connected to both the left and right sides of the shock-absorbing steel plate (7). The inner wall of the second cylinder (15) is in contact with the surface of the connecting bracket (14).

2. The low-decibel vibration damping device according to claim 1, characterized in that: The center of the fixed plate (8) and the center of the shock-absorbing steel plate (7) are on the same vertical line, and the spring seat (10) is located in the middle of the fixed plate (8).

3. The low-decibel vibration damping device according to claim 1, characterized in that: The adjusting bracket (12) includes a second screw (121), a threaded cylinder (122), and a rotating block (123). The upper surface of the second screw (121) is fixedly connected to the bottom of the upper frame (13). The surface of the second screw (121) is threadedly connected to the inner wall of the threaded cylinder (122). The surface of the threaded cylinder (122) is in contact with the inner wall of the shock-absorbing spring (11). The surface of the threaded cylinder (122) is fixedly connected to the inner wall of the rotating block (123). The bottom of the rotating block (123) is in contact with the upper surface of the shock-absorbing spring (11).

4. The low-decibel vibration damping device according to claim 1, characterized in that: The connecting bracket (14) includes a U-shaped plate (141), a cylinder (142), a first bearing (143), a connecting ring (144), a second bearing (145), a third screw (146), and a second anti-loosening nut (147). The upper surface of the U-shaped plate (141) is fixedly connected to the bottom of the upper frame (13). The front and rear ends of the cylinder (142) are fixedly connected to the inner wall of the U-shaped plate (141). The surface of the cylinder (142) is fixedly connected to the inner ring of the first bearing (143). The outer ring of the first bearing (143) and the outer ring of the second bearing (145) are both fixedly connected to the inner wall of the connecting ring (144). The inner ring of the second bearing (145) and the inner wall of the second cylinder (15) are both in contact with the surface of the third screw (146). The surface of the third screw (146) is threadedly connected to the inner wall of the second anti-loosening nut (147).

5. A low-decibel vibration damping device according to claim 4, characterized in that: The second bearing (145) is located between the second cylinder (15) and the second lock nut (147).

6. A low-decibel vibration damping device according to claim 3, characterized in that: The second screw (121) has a rectangular groove (16) on its front side, and the threaded cylinder (122) has a round hole (17) on its front side. The inner wall of the round hole (17) and the inner wall of the rectangular groove (16) are fitted with positioning bolts (18). The surface of the positioning bolts (18) is threaded with a third anti-loosening nut (19). The left and right sides of the third anti-loosening nut (19) and the front side of the threaded cylinder (122) are fixedly connected with connecting posts (20).

7. A low-decibel vibration damping device according to claim 6, characterized in that: The width of the rectangular groove (16) is equal to the diameter of the positioning bolt (18), and the length of the rectangular groove (16) is greater than the diameter of the positioning bolt (18).

8. A low-decibel vibration damping device according to claim 1, characterized in that: The damping steel plate (7) is made of multiple steel plates stacked together, and the surface of the damping steel plate (7) is covered with damping material.

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