Narrow-band full-frequency damping shock absorber
By designing a narrow-band full-frequency damping shock absorber, which employs the synergistic action of compression springs and damping springs, combined with hydraulic damping and limit protection structures, the problem of poor damping effect and component damage under sudden impact of existing shock absorbers is solved, achieving efficient multi-stage damping and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI LIANSHENG TECH
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-19
AI Technical Summary
Existing shock absorbers are unable to achieve effective vibration reduction over a wide frequency range and precise suppression of narrow frequency bands. They also lack a limit protection mechanism to deal with sudden impacts, resulting in poor overall vibration reduction or increased energy consumption and easy damage to components.
A narrow-band full-frequency damping shock absorber is designed, which uses the synergistic effect of compression springs and damping springs, combined with hydraulic damping, and forms a limit protection structure through locking bolts to achieve wide-band damping and precise suppression of narrow-band frequencies, and prevents excessive displacement under sudden impact.
It achieves wide-band vibration reduction and precise narrow-band frequency suppression, improving vibration reduction effect and safety, preventing component damage, and is suitable for applications such as precision instrument support, vehicle suspension systems, and bridge seismic design.
Smart Images
Figure CN224260797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibration control technology, and in particular to a narrow-band full-frequency damping shock absorber. Background Technology
[0002] In fields such as mechanical systems, transportation vehicles, and building engineering, vibration control technology is an important means to ensure equipment stability, improve operational comfort, and extend service life. Especially in applications such as the installation of certain precision instruments, vehicle suspension systems, and seismic design of bridges, the vibration frequency distribution is wide and changes frequently, including both low-frequency, large-amplitude main vibration sources and high-frequency, small-amplitude secondary disturbances.
[0003] Most existing shock absorbers can only be optimized for a specific frequency range, making it difficult to achieve effective "wide-band" shock absorption while also accurately suppressing "narrow-band frequencies," resulting in poor overall shock absorption or increased energy consumption. In addition, existing shock absorbers lack effective limiting and protection mechanisms when dealing with sudden impacts or overload conditions, which can easily cause component damage or even system failure.
[0004] Therefore, a narrow-band full-frequency damping shock absorber is particularly needed to solve the above problems. Utility Model Content
[0005] In order to overcome the shortcomings of existing shock absorbers, which are unable to achieve both effective damping over a wide frequency range and precise suppression of narrow frequency bands, and lack a limiting protection mechanism to deal with sudden impacts, this utility model provides a narrow-band full-frequency damping shock absorber.
[0006] This utility model is achieved through the following technical means: a narrow-band full-frequency damping shock absorber, including a mounting base, a piston disc, a locking shaft, a mounting plate, a compression spring, and a damping spring. The mounting base has symmetrical mounting holes on both sides. The piston disc is slidably connected inside the mounting base. The locking shaft is fixedly connected to the center of the piston disc. The mounting plate is slidably connected to the upper side of the locking shaft. The mounting plate has multiple positioning holes. A compression spring is connected between the piston disc and the mounting plate. The damping spring is connected between the mounting base and the piston disc.
[0007] As an improvement to the above solution, the fixing mechanism includes a locking bolt one and a locking bolt two. The locking bolt one is threadedly connected to the upper side of the locking shaft. The locking bolt one is located above the mounting plate, and the bottom of the locking bolt one is close to the top of the mounting plate. The locking bolt two is threadedly connected to the lower side of the locking shaft. The locking bolt two is located below the piston plate, and the top of the locking bolt two is close to the bottom of the piston plate.
[0008] As an improvement to the above solution, it includes a contact ring and a conical damping ring. The contact ring is fixedly connected to the lower side of the mounting base, and the conical damping ring is fixedly connected to the bottom of the mounting plate. The lower side of the conical damping ring slides between the outer side of the mounting base and the inner side of the contact ring. The mounting plate is located above the conical damping ring, and the two are fixedly connected.
[0009] As an improvement to the above solution, it also includes hydraulic pipes, locking heads, guide rods, piston rings, and return springs. The outer wall of the mounting base is fixed with symmetrical hydraulic pipes, which pass through and are fixed to the contact rings. A locking head is fixed to one end of the hydraulic pipe away from the mounting base, and a guide rod is fixed to the other end of the locking head. A piston ring is slidably connected to the guide rod, and the piston ring is located inside the corresponding hydraulic pipe to form a sliding contact with it. A return spring is connected between the piston ring and the locking head.
[0010] As an improvement to the above solution, the sealed cavity formed between the piston disc and the mounting seat is filled with hydraulic oil.
[0011] As an improvement to the above solution, both the conical damping ring and the contact ring are made of rubber composite material.
[0012] As can be seen from the above description of the structure of this utility model, the design starting point, concept and advantages of this utility model are: 1. This utility model, through the synergistic effect of compression spring and shock-absorbing spring, respectively undertakes the tasks of high-frequency vibration buffering and low-frequency large amplitude absorption, thereby covering a wide range of vibration frequencies and realizing the organic combination of wide-band shock absorption and narrow-band frequency precise suppression.
[0013] 2. This utility model uses locking bolt one and locking bolt two to form a limiting protection structure to prevent excessive displacement under sudden impact or overload conditions, avoid component damage, and improve overall safety and reliability.
[0014] 3. This utility model provides hydraulic pressure damping through hydraulic pressure, while the return spring ensures that the vibration ends and the system quickly returns to its initial state. The synergistic effect of multiple mechanisms significantly improves the overall damping effect and realizes a multi-level damping mechanism to enhance the overall damping performance.
[0015] 4. This utility model has a compact structure and complete functions, and is suitable for various occasions that require efficient vibration control, such as precision instrument support, vehicle suspension system and bridge seismic design. It has good engineering promotion value. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a three-dimensional structural diagram of the mounting plate, contact ring, and conical shock-absorbing ring of this utility model.
[0018] Figure 3 This is a planar structural diagram of the piston disc, locking shaft, and mounting disc components of this utility model.
[0019] Figure 4 This is a three-dimensional structural diagram of the guide rod, piston ring, and return spring of the present invention.
[0020] The labels in the diagram are as follows: 1. Mounting base, 2. Mounting hole, 3. Piston disc, 4. Locking shaft, 5. Mounting disc, 51. Positioning hole, 6. Locking bolt one, 7. Compression spring, 8. Shock-absorbing spring, 9. Locking bolt two, 10. Contact ring, 11. Conical shock-absorbing ring, 12. Hydraulic pipe, 13. Locking head, 14. Guide rod, 15. Piston ring, 16. Return spring. Detailed Implementation
[0021] Example: A narrow-band full-frequency damping shock absorber, such as Figures 1-4 As shown, the assembly includes a mounting base 1, a piston disc 3, a locking shaft 4, a mounting plate 5, a compression spring 7, a damping spring 8, a contact ring 10, a conical damping ring 11, a hydraulic pipe 12, a locking head 13, a guide rod 14, a piston ring 15, and a return spring 16. The mounting base 1 has symmetrical mounting holes 2 for overall fixation. The piston disc 3 is slidably connected inside the mounting base 1. The sealed cavity formed between the piston disc 3 and the mounting base 1 is filled with hydraulic oil. A locking shaft 4 is fixedly connected to the center of the piston disc 3. The mounting plate 5 is slidably connected to the upper side of the locking shaft 4. The mounting plate 5 has multiple positioning holes 51. A compression spring 7 connects the piston disc 3 and the mounting plate 5 to buffer high-frequency vibrations. A damping spring 8 connects the mounting base 1 and the piston disc 3 to absorb low-frequency energy transmitted by the main vibration source. A contact ring is fixedly connected to the lower side of the mounting base 1. 10. A conical damping ring 11 is fixedly connected to the bottom of the mounting plate 5. Both the conical damping ring 11 and the contact ring 10 are made of rubber composite material, which has excellent damping performance and wear resistance. The lower side of the conical damping ring 11 slides between the outer side of the mounting base 1 and the inner side of the contact ring 10. The mounting plate 5 is located above the conical damping ring 11, and the two are fixedly connected. A symmetrical hydraulic pipe 12 is fixedly connected to the outer wall of the mounting base 1. The hydraulic pipe 12 passes through and is fixedly connected to the contact ring 10. A locking head 13 is fixedly connected to the end of the hydraulic pipe 12 away from the mounting base 1. A guide rod 14 is fixedly connected to the end of the locking head 13 facing the other side. A piston ring 15 is slidably connected to the guide rod 14. The piston ring 15 is located inside the corresponding hydraulic pipe 12 and forms a sliding contact with it. A return spring 16 is connected between the piston ring 15 and the locking head 13 to realize the hydraulic feedback and reset function.
[0022] like Figure 1 and Figure 3As shown, the fixing mechanism includes a locking bolt 6 and a locking bolt 9. The locking bolt 6 is threaded on the upper side of the locking shaft 4 and is located above the mounting plate 5. The bottom of the locking bolt 6 is close to the top of the mounting plate 5. The locking bolt 9 is threaded on the lower side of the locking shaft 4 and is located below the piston plate 3. The top of the locking bolt 9 is close to the bottom of the piston plate 3.
[0023] First, the mounting base 1 is fixed to the ground surface through the mounting hole 2, and the mounting plate 5 is fixed to the device being damped through the positioning hole 51. When external vibration is transmitted to this device, it first causes relative movement between the mounting base 1 and the mounting plate 5. Due to the sliding fit surface formed between the conical damping ring 11 and the contact ring 10, the conical damping ring 11 slides between the outer side of the mounting base 1 and the inner side of the contact ring 10, generating frictional damping and effectively absorbing some of the medium and high frequency vibration energy. At the same time, the mounting plate 5 drives the locking shaft 4 to move downward, pushing the piston plate 3 to slide downward in the mounting base 1, thereby compressing the damping spring 8 and stretching the compression spring 7. At this time, the damping spring 8 and the compression spring 7 respectively undertake the damping tasks of different frequency bands: the compression spring 7 is used to buffer high frequency vibration and reduce... The vibration spring 8 is responsible for absorbing the low-frequency, large-amplitude vibration transmitted by the main vibration source. Under the action of high-frequency vibration, the hydraulic oil in the mounting base 1 flows into the hydraulic pipe 12, driving the piston ring 15 to slide outward along the guide rod 14, thereby generating hydraulic pressure feedback and further enhancing the overall damping effect. The return spring 16 ensures that the piston ring 15 can automatically rebound and return to its initial position after the vibration ends. After the vibration ends, the compression spring 7, the damping spring 8, and the return spring 16 gradually release the stored energy, so that the whole returns to its initial state and is ready to receive the next vibration input. In order to prevent excessive displacement under overload or abnormal working conditions, the locking shaft 4 is limited between the mounting plate 5 and the piston plate 3 by locking bolt 1 6 and locking bolt 2 9, ensuring that the equipment can still maintain structural stability under extreme vibration conditions.
Claims
1. A narrow-band full-frequency damping shock absorber, characterized in that: It includes a mounting base (1), a piston disc (3), a locking shaft (4), a mounting plate (5), a compression spring (7), and a shock-absorbing spring (8). The mounting base (1) has symmetrical mounting holes (2). The piston disc (3) is slidably connected inside the mounting base (1). The locking shaft (4) is fixedly connected through the center of the piston disc (3). The mounting plate (5) is slidably connected to the upper side of the locking shaft (4). The mounting plate (5) has multiple positioning holes (51). The compression spring (7) is connected between the piston disc (3) and the mounting plate (5). The shock-absorbing spring (8) is connected between the mounting base (1) and the piston disc (3).
2. A narrow-band full-frequency damping shock absorber according to claim 1, characterized in that: The fixing mechanism includes a locking bolt one (6) and a locking bolt two (9). The locking bolt one (6) is threaded on the upper side of the locking shaft (4). The locking bolt one (6) is located above the mounting plate (5), and the bottom of the locking bolt one (6) is close to the top of the mounting plate (5). The locking bolt two (9) is threaded on the lower side of the locking shaft (4). The locking bolt two (9) is located below the piston plate (3), and the top of the locking bolt two (9) is close to the bottom of the piston plate (3).
3. A narrow-band full-frequency damping shock absorber according to claim 2, characterized in that: It also includes a contact ring (10) and a conical damping ring (11). The contact ring (10) is fixedly connected to the lower side of the mounting base (1), and the conical damping ring (11) is fixedly connected to the bottom of the mounting plate (5). The lower side of the conical damping ring (11) slides between the outer side of the mounting base (1) and the inner side of the contact ring (10). The mounting plate (5) is located above the conical damping ring (11), and the two are fixedly connected.
4. A narrow-band full-frequency damping shock absorber according to claim 3, characterized in that: It also includes a hydraulic pipe (12), a locking head (13), a guide rod (14), a piston ring (15), and a return spring (16). The outer wall of the mounting base (1) is fixed with symmetrical hydraulic pipes (12). The hydraulic pipes (12) are inserted and fixed to the contact ring (10). The end of the hydraulic pipe (12) away from the mounting base (1) is fixed with a locking head (13). The end of the locking head (13) facing the other side is fixed with a guide rod (14). The piston ring (15) is slidably connected to the guide rod (14). The piston ring (15) is located inside the corresponding hydraulic pipe (12) and forms a sliding contact with it. A return spring (16) is connected between the piston ring (15) and the locking head (13).
5. A narrow-band full-frequency damping shock absorber according to claim 4, characterized in that: The sealed cavity formed between the piston disc (3) and the mounting base (1) is filled with hydraulic oil.
6. A narrow-band full-frequency damping shock absorber according to claim 5, characterized in that: Both the conical damping ring (11) and the contact ring (10) are made of rubber composite material.