Roots blower damping base

The vibration damping base of the Roots blower, designed with multiple sets of damping mechanisms and ventilation openings, solves the problem of poor vibration damping effect of existing Roots blowers, achieving more effective vibration suppression and noise reduction, and improving the stability and environmental friendliness of the equipment.

CN224326410UActive Publication Date: 2026-06-05SHANDONG DACHENG MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG DACHENG MASCH TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing vibration damping base for Roots blowers has poor vibration damping effect, which is difficult to meet the actual use requirements, and the vibration and noise interfere with the blower and the surrounding environment.

Method used

A vibration damping base for Roots blowers was designed, employing multiple damping mechanisms, including damping rods, damping sleeves, damping springs, sealing plates, and elastic mechanisms. The multi-layer damping structure absorbs vibration energy, and the ventilation port design enables intelligent response to suppress vibrations of varying degrees.

Benefits of technology

It effectively reduces the vibration and noise of Roots blowers, protects blower performance, extends service life, reduces interference with the surrounding environment and equipment, and improves shock absorption and environmental benefits.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224326410U_ABST
    Figure CN224326410U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of shock absorbing base, concretely is a roots blower shock absorbing base, including roots blower main part and mounting seat, roots blower main part is connected with the mounting seat top end, still include shock attenuation mechanism, shock attenuation mechanism is provided with multiple sets, multiple sets shock attenuation mechanism all install in mounting seat bottom end, are used for the shock attenuation of energy absorption of roots blower generation, shock attenuation mechanism includes shock attenuation rod, shock attenuation sleeve, shock attenuation spring, plugging board, slide bar and mounting plate. When roots blower operation produces the shock, shock attenuation rod seals and slides in shock attenuation sleeve, shock attenuation spring can effectively absorb shock energy, through the elastic deformation of itself, converts shock kinetic energy into elastic potential energy, weakens the transmission of shock, greatly reduced the shock amplitude that roots blower is transmitted to ground and surrounding equipment, has promoted the shock attenuation effect, the first vent and second vent design of shock attenuation sleeve bottom, cooperate plugging board, slide bar and elastic mechanism, realized the intelligent response to different degree shock.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of vibration damping bases, specifically a vibration damping base for Roots blowers. Background Technology

[0002] Roots blowers, as a type of positive displacement blower, achieve gas compression and transport through the relative rotation of two three-lobe rotors. Due to their simple structure, convenient maintenance, and stable performance, they are widely used in many fields such as wastewater treatment, cement production, and grain processing. However, Roots blowers inevitably generate vibration and noise during operation. This vibration and noise can not only adversely affect the blower's own performance and shorten its service life, but also interfere with the surrounding environment and other equipment, causing a series of problems.

[0003] Currently, although some vibration damping bases for Roots blowers exist on the market, they generally suffer from poor vibration damping performance. For example, some bases rely solely on springs and rubber rings for vibration damping, resulting in limited damping effectiveness and failing to meet actual usage requirements. Therefore, a vibration damping base for Roots blowers is needed to solve the aforementioned problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a vibration damping base for Roots blowers, which can be used to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a vibration damping base for a Roots blower, comprising a Roots blower body and a mounting base, wherein the Roots blower body is connected to the top of the mounting base, and further comprising a vibration damping mechanism, wherein multiple sets of vibration damping mechanisms are provided, and all sets of vibration damping mechanisms are installed at the bottom of the mounting base, for absorbing and damping the vibration generated by the Roots blower. The vibration damping mechanism includes a vibration damping rod, a vibration damping sleeve, a vibration damping spring, a sealing plate, a sliding rod, and a mounting plate, wherein the top of the vibration damping rod is connected to the bottom of the mounting base, and the outer wall of the vibration damping rod is sealed to the inner wall of the vibration damping sleeve in a sliding manner. The assembly consists of a shock-absorbing spring and a shock-absorbing rod set. The top and bottom of the shock-absorbing spring are connected to the mounting base and the top of the shock-absorbing sleeve, respectively. The bottom of the shock-absorbing sleeve is provided with a first ventilation port and a second ventilation port. The diameter of the first ventilation port is much larger than that of the second ventilation port. The mounting plate is connected to the first ventilation port, and the sliding rod is slidably connected to the mounting plate. One end of the sliding rod is connected to a sealing plate. The sealing plate is located inside the shock-absorbing sleeve. One end of the sealing plate is attached to the inner wall of the shock-absorbing sleeve and blocks the first through hole. The sliding rod is provided with an elastic mechanism, which allows the sealing plate to quickly block the first ventilation port.

[0008] Preferably, the elastic mechanism includes a return spring and a limiting plate. The limiting plate is connected to the other end of the slide rod, the return spring is fitted onto the slide rod, and both ends of the return spring are connected to the mounting plate and the limiting plate, respectively.

[0009] Preferably, a rubber ring is provided on the sealing plate located on one side of the first ventilation opening.

[0010] Preferably, the inner wall of the shock-absorbing sleeve is provided with an annular groove, and an oil tank is provided on the shock-absorbing sleeve. The bottom of the oil tank is connected to the annular groove, and the shock-absorbing rod never leaves the annular groove.

[0011] Preferably, the outer wall of the shock-absorbing sleeve is provided with a dust cover, and both the first ventilation opening and the second ventilation opening are located inside the dust cover.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a vibration damping base for Roots blowers, which has the following characteristics:

[0014] Beneficial effects:

[0015] By setting up multiple sets of vibration damping mechanisms, including damping rods, damping sleeves, and damping springs, a multi-layered vibration damping structure is formed through their cooperation. When the Roots blower vibrates during operation, the damping rods slide sealed within the damping sleeves, and the damping springs effectively absorb vibration energy, converting the kinetic energy of the vibration into elastic potential energy through their own elastic deformation, thus weakening the transmission of vibration and greatly reducing the vibration amplitude transmitted from the Roots blower to the ground and surrounding equipment, thereby improving the vibration damping effect. The design of the first and second ventilation openings at the bottom of the damping sleeves, together with the sealing plate, sliding rod, and elastic mechanism, enables intelligent response to vibrations of different degrees. When the vibration is minor, the gas can be discharged through the second vent, the air pressure inside the damping sleeve is stable, and the damping mechanism works normally. When the vibration intensifies, the sealing plate quickly blocks the first vent under the action of the elastic mechanism, slowing down the gas discharge speed inside the damping sleeve, increasing the internal air pressure, providing stronger damping force, and further suppressing the vibration. Compared with traditional damping bases that rely solely on springs and rubber rings, this design can more effectively cope with vibrations under complex working conditions and meet actual usage requirements. In addition, the design of this damping base effectively reduces the vibration of the Roots blower, thereby reducing the noise generated by the vibration. This not only protects the performance of the Roots blower itself and extends its service life, but also reduces interference to the surrounding environment and other equipment, demonstrating good practicality and environmental benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fuel tank, shock-absorbing sleeve, and their connection structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the first ventilation opening structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the annular groove structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the sealing plate, rubber ring, and their connection structure of this utility model.

[0021] Reference numerals in the attached drawings: 1. Roots blower body; 2. Mounting base; 3. Vibration damping rod; 4. Vibration damping sleeve; 5. Vibration damping spring; 6. Sealing plate; 7. Sliding rod; 8. Mounting plate; 9. First vent; 10. Second vent; 11. Return spring; 12. Limiting plate; 13. Rubber ring; 14. Annular groove; 15. Oil tank; 16. Dust cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1-5 A vibration damping base for a Roots blower includes a Roots blower body 1 and a mounting base 2. The top of the Roots blower body 1 is connected to the top of the mounting base 2. The base also includes multiple sets of vibration damping mechanisms, all mounted at the bottom of the mounting base 2, for absorbing and damping the vibrations generated by the Roots blower. Each vibration damping mechanism includes a damping rod 3, a damping sleeve 4, a damping spring 5, a sealing plate 6, a sliding rod 7, and a mounting plate 8. The top of the damping rod 3 is connected to the bottom of the mounting base 2. The outer wall of the damping rod 3 is sealed and slidably fitted with the inner wall of the damping sleeve 4. The damping spring 5 is fitted with the damping rod 3. The top and bottom ends of the shock-absorbing spring 5 are connected to the mounting base 2 and the top end of the shock-absorbing sleeve 4, respectively. The bottom of the shock-absorbing sleeve 4 is provided with a first ventilation port 9 and a second ventilation port 10. The diameter of the first ventilation port 9 is much larger than the diameter of the second ventilation port 10. The mounting plate 8 is connected to the first ventilation port 9. The sliding rod 7 is slidably connected to the mounting plate 8. One end of the sliding rod 7 is connected to the sealing plate 6. The sealing plate 6 is located inside the shock-absorbing sleeve 4. One end of the sealing plate 6 is attached to the inner wall of the shock-absorbing sleeve 4 and blocks the first through hole. The sliding rod 7 is provided with an elastic mechanism, which allows the sealing plate 6 to quickly block the first ventilation port 9.

[0025] Please see Figures 1-5The elastic mechanism includes a return spring 11 and a limiting plate 12. The limiting plate 12 is connected to the other end of the slide rod 7, and the return spring 11 is fitted onto the slide rod 7. Both ends of the return spring 11 are connected to the mounting plate 8 and the limiting plate 12, respectively. With the design of the return spring 11 and the limiting plate 12, when the Roots blower vibrates and causes the sealing plate 6 to move and open the first ventilation opening 9, the return spring 11 provides a restoring force, causing the slide rod 7 to quickly reset the sealing plate 6 and re-block the first ventilation opening 9. This structure ensures that the vibration damping mechanism can quickly return to its initial state after each vibration, maintaining stable vibration damping performance and continuously and effectively absorbing and damping the vibrations generated by the Roots blower. This avoids a decrease in vibration damping effect due to the sealing plate 6 failing to reset in time, further improving the reliability and stability of the vibration damping base.

[0026] Please see Figures 1-5 A rubber ring 13 is provided on the sealing plate 6 located on one side of the first ventilation opening 9. The rubber ring 13 has good elasticity and sealing performance. When the sealing plate 6 blocks the first ventilation opening 9, the rubber ring 13 can tightly fit the inner wall of the shock-absorbing sleeve 4, further enhancing the sealing effect and preventing gas from leaking from the gap between the sealing plate 6 and the shock-absorbing sleeve 4. This ensures a stable air pressure environment inside the shock-absorbing sleeve 4, allowing the shock-absorbing mechanism to more effectively perform its shock-absorbing function and improve the overall shock-absorbing performance. At the same time, the rubber ring 13 can also buffer the collision between the sealing plate 6 and the shock-absorbing sleeve 4, reduce wear, and extend the service life of the sealing plate 6 and the shock-absorbing sleeve 4.

[0027] Please see Figures 1-5 The inner wall of the damping sleeve 4 is provided with an annular groove 14, and an oil tank 15 is provided on the damping sleeve 4. The bottom of the oil tank 15 is connected to the annular groove 14, and the damping rod 3 is always kept in the annular groove 14. By adding lubricating oil to the oil tank 15, during the operation of the Roots blower, the damping rod 3 slides within the damping sleeve 4. The lubricating oil in the annular groove 14 provides good lubrication, reducing the frictional resistance between the damping rod 3 and the damping sleeve 4, reducing component wear, and extending the service life of the damping mechanism. At the same time, a stable lubrication environment helps the damping rod 3 slide more smoothly, making the damping effect of the damping mechanism more stable and reliable, avoiding a decrease in damping performance or component damage due to excessive friction, and further improving the performance and durability of the damping base.

[0028] Please see Figures 1-5A dust cover 16 is provided on the outer wall of the shock-absorbing sleeve 4, and the first ventilation port 9 and the second ventilation port 10 are both located inside the dust cover 16. The dust cover 16 can effectively block external dust and debris from entering the interior of the shock-absorbing sleeve 4, preventing dust from affecting the sliding performance between the shock-absorbing rod 3 and the shock-absorbing sleeve 4, and avoiding the formation of impurities by mixing dust with lubricating oil, which could damage the components of the shock-absorbing mechanism. Through this protective measure, the cleanliness of the inside of the shock-absorbing mechanism is ensured, maintaining the normal operation and stable shock absorption effect of the shock-absorbing mechanism, extending the maintenance cycle and service life of the vibration damping base, and improving the applicability and reliability of the Roots blower vibration damping base in actual use environments.

[0029] In summary, this Roots blower vibration damping base utilizes multiple damping mechanisms, including damping rods 3, damping sleeves 4, and damping springs 5, to form a multi-layered damping structure. When the Roots blower vibrates during operation, the damping rods 3 slide sealed within the damping sleeves 4, while the damping springs 5 ​​effectively absorb vibration energy. Through their elastic deformation, the kinetic energy of the vibration is converted into elastic potential energy, weakening the transmission of vibration and significantly reducing the vibration amplitude transmitted from the Roots blower to the ground and surrounding equipment, thus improving the damping effect. The design of the first ventilation port 9 and the second ventilation port 10 at the bottom of the damping sleeve 4, in conjunction with the sealing plate 6, sliding rod 7, and elastic mechanism, enables intelligent response to vibrations of varying degrees. When the vibration is small, the gas can be discharged through the second vent 10, the air pressure inside the damping sleeve 4 is stable, and the damping mechanism works normally. When the vibration intensifies, the sealing plate 6 quickly blocks the first vent 9 under the action of the elastic mechanism, slowing down the gas discharge speed inside the damping sleeve 4, increasing the internal air pressure, providing stronger damping force, and further suppressing the vibration. Compared with the traditional damping base that relies only on springs and rubber rings 13, it can more effectively cope with the vibration under complex working conditions and meet the actual use requirements. In addition, the design of this damping base effectively reduces the vibration of the Roots blower, thereby reducing the noise caused by the vibration. It not only protects the performance of the Roots blower itself and extends its service life, but also reduces the interference to the surrounding environment and other equipment, and has good practicality and environmental benefits.

[0030] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A vibration damping base for a Roots blower, comprising a Roots blower body (1) and a mounting base (2), wherein the top end of the Roots blower body (1) is connected to the top end of the mounting base (2), characterized in that, Also includes: The vibration damping mechanism consists of multiple sets, all installed at the bottom of the mounting base (2) to absorb and dampen the vibrations generated by the Roots blower. The vibration damping mechanism includes a damping rod (3), a damping sleeve (4), a damping spring (5), a sealing plate (6), a sliding rod (7), and a mounting plate (8). The top of the damping rod (3) is connected to the bottom of the mounting base (2), and the outer wall of the damping rod (3) is sealed and slidably fitted with the inner wall of the damping sleeve (4). The damping spring (5) is fitted with the damping rod (3), and the top and bottom of the damping spring (5) are connected to the top of the mounting base (2) and the top of the damping sleeve (4), respectively. Next, the bottom of the shock-absorbing sleeve (4) is provided with a first ventilation port (9) and a second ventilation port (10). The diameter of the first ventilation port (9) is much larger than that of the second ventilation port (10). The mounting plate (8) is connected to the first ventilation port (9). The sliding rod (7) is slidably connected to the mounting plate (8). One end of the sliding rod (7) is connected to the sealing plate (6). The sealing plate (6) is located inside the shock-absorbing sleeve (4). One end of the sealing plate (6) is attached to the inner wall of the shock-absorbing sleeve (4) and blocks the first through hole. The sliding rod (7) is provided with an elastic mechanism. The elastic mechanism makes the sealing plate (6) quickly block the first ventilation port (9).

2. The vibration damping base for a Roots blower according to claim 1, characterized in that: The elastic mechanism includes a return spring (11) and a limiting plate (12). The limiting plate (12) is connected to the other end of the slide rod (7). The return spring (11) is fitted onto the slide rod (7). The two ends of the return spring (11) are connected to the mounting plate (8) and the limiting plate (12) respectively.

3. The vibration damping base for a Roots blower according to claim 2, characterized in that: A rubber ring (13) is provided on the sealing plate (6) located on one side of the first ventilation opening (9).

4. The vibration damping base for a Roots blower according to claim 3, characterized in that: The inner wall of the shock-absorbing sleeve (4) is provided with an annular groove (14), and a fuel tank (15) is provided on the shock-absorbing sleeve (4). The bottom of the fuel tank (15) is connected to the annular groove (14), and the shock-absorbing rod (3) never leaves the annular groove (14).

5. A vibration damping base for a Roots blower according to claim 4, characterized in that: The outer wall of the shock-absorbing sleeve (4) is provided with a dust cover (16), and the first vent (9) and the second vent (10) are both located inside the dust cover (16).