Vibration reduction base of Roots blower

Abstract

The utility model discloses a vibration reduction base of a Roots blower, and aims to solve the problems that a vibration propagation path cannot be completely isolated, the vibration effect on different frequencies is unbalanced and the rigidity of a connecting part is insufficient in an existing vibration reduction mode. The device comprises a damping shell, a flexible connection part, a mounting base and a driving device. The damping shell is used for containing the Roots blower body, and a damping structure is arranged in the damping shell to achieve preliminary damping. The flexible connection part is arranged on one side of the damping shell, comprises a flexible connection shell and an internal damping spring, and is used for connecting an air inlet or an air outlet of the Roots blower and further isolating vibration; the mounting base is arranged at the bottom of the damping shell, comprises a base body and reinforcing ribs, and is used for supporting the whole device and providing an additional damping effect; the driving device is arranged on the other side of the damping shell and used for driving the Roots blower to operate.

Description

TECHNICAL FIELD

[0001] The utility model provides a roots blower damping base belongs to roots blower technical field, especially relates to a roots blower damping base. BACKGROUND

[0002] The roots blower is a positive displacement blower, which compresses and transports gas by the relative motion of two synchronous counter-rotating impellers in the cylinder. It has the characteristics of forced air supply and can provide stable airflow at low pressure. It is widely used in ventilation, air blowing, dust removal, pneumatic conveying and sewage treatment in industrial production. It has compact structure, high efficiency and low noise, and can maintain constant flow within a certain pressure range. It is suitable for conveying air, coal gas, natural gas and other non-corrosive gases.

[0003] The significance of the existing roots blower damping is to effectively reduce the vibration generated during the operation of the blower, thereby reducing the impact of vibration on the equipment itself, the surrounding environment and personnel. The basic way of existing roots blower to achieve damping mainly includes installing damping pad, using elastic support and installing spring shock absorber.

[0004] However, relying solely on these damping methods cannot ensure that the overall device achieves damping and stable connection. First, vibration can be transmitted through other channels, such as through pipes or connecting components, resulting in poor overall damping effect. Second, these damping methods have different effects on different frequencies of vibration, which may be better for some frequencies of vibration, but worse for other frequencies of vibration. In addition, the stiffness and mass of the connecting components also affect the damping effect. If the stiffness of the connecting components is insufficient or improperly installed, it may cause unstable connection, thereby affecting the damping performance of the entire device. Therefore, in actual application, various factors need to be considered, and a combination of various damping measures should be adopted to ensure the overall damping effect and connection stability of the roots blower device. SUMMARY

[0005] The embodiments of the present application are provided to make up for the deficiencies of the prior art, by providing a roots blower damping base, which solves the problem that the existing damping method cannot completely isolate the vibration transmission path, the effect on different frequency vibrations is not balanced, and the stability problem caused by insufficient stiffness of the connecting components. Through multi-stage damping design and optimization of the connection structure, more efficient damping and connection stability are achieved.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a roots blower damping base, comprising a damping shell, the damping shell is connected with a soft connection part, an installation base and a driving device correspondingly;

[0007] The damping shell is used to accommodate the roots blower main body, and a damping structure is arranged inside to achieve preliminary damping;

[0008] The soft connection part is arranged on one side of the shock-absorbing shell and comprises a soft connection shell and internal shock-absorbing springs, which are used to connect the air inlet or air outlet of the Roots blower and further isolate vibration;

[0009] The mounting base is arranged at the bottom of the shock-absorbing shell and comprises a base body and reinforcing ribs arranged on the base body, which are used to support the entire device and provide additional shock-absorbing effect;

[0010] The driving device is arranged on the other side of the shock-absorbing shell and is used to drive the Roots blower to operate.

[0011] Preferably, the soft connection shell is a hollow structure filled with sound-absorbing material inside to reduce noise propagation.

[0012] Preferably, the reinforcing ribs are metal structures arranged in a diagonal or transverse direction to enhance the rigidity and stability of the mounting base.

[0013] Preferably, the shock-absorbing shell and the mounting base are connected by bolts to ensure the stability of the overall structure.

[0014] Preferably, the soft connection part and the shock-absorbing shell are connected by flanges for easy disassembly and installation.

[0015] Preferably, the driving device comprises a motor and a coupling, and the motor is connected to the main shaft of the Roots blower through the coupling to transmit power.

[0016] Preferably, the bottom of the shock-absorbing shell is provided with a shock-absorbing pad to further isolate vibration.

[0017] Preferably, the bottom of the mounting base is provided with anchor bolts to fix the entire device.

[0018] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0019] The device realizes preliminary damping through the damping structure inside the damping shell, effectively isolates the vibration generated by the Roots blower body, the soft connection part is arranged on one side of the damping shell and includes a soft connection shell and damping springs inside, can further isolate the vibration, especially the vibration transmitted through the pipeline, thereby solving the problem of vibration transmission path, the mounting base is arranged at the bottom of the damping shell, the combination design of the base body and the reinforcing rib enhances the rigidity and stability of the device, ensures that the rigidity of the connecting part is sufficient, and avoids the problem of unstable connection caused by insufficient rigidity, and the bolt connection between the damping shell and the mounting base further ensures the stability of the overall structure. Through the synergistic effect of these structures, the device can effectively solve the problems of uneven vibration effect of different frequencies, incomplete isolation of vibration transmission path and insufficient rigidity of the connecting part of the existing damping mode, thereby realizing higher overall damping effect and connection stability.

[0020] Other advantages, objects and features of the present application will be apparent to those skilled in the art from the following description, and to some extent, will be apparent from the examination of the following text, or can be taught from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Figure 1 is a schematic view of the installation of a Roots blower damping base of the present application;

[0022] Figure 2 Figure 2 is an exploded view of a Roots blower mounting shell of a Roots blower damping base of the present application;

[0023] Figure 3 Figure 3 is an exploded view of a mounting base part of a Roots blower damping base of the present application;

[0024] Figure 4 Figure 4 is an exploded view of a soft connection part of a Roots blower damping base of the present application.

[0025] As shown in the figure:

[0026] 1, damping shell;

[0027] 11, damping pad;

[0028] 2, soft connection part;

[0029] 21, soft connection shell; 22, damping spring;

[0030] 3, mounting base;

[0031] 31, base body; 32, reinforcing rib; 33, anchor bolt;

[0032] 4, driving device;

[0033] 41. An electric machine. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0035] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein in the specification merely describe specific embodiments of the present application for purposes of illustration and not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] As shown in Figure 1 and Figure 2 A Roots blower vibration reduction base, including a shock-absorbing shell 1, a soft connection part 2, a mounting base 3 and a driving device 4. The shock-absorbing shell 1 is used to accommodate the main body of the Roots blower, and the inside is provided with a shock-absorbing structure to realize preliminary vibration reduction. The soft connection part 2 is arranged on one side of the shock-absorbing shell 1, including a soft connection shell 21 and an internal shock-absorbing spring 22, used to connect the air inlet or air outlet of the Roots blower, and further isolate the vibration. The soft connection shell 21 is a hollow structure, filled with sound-absorbing material 23 inside, to reduce noise propagation. The bottom of the shock-absorbing shell 1 is provided with a shock-absorbing pad 11, used to further isolate the vibration. These designs work together to effectively reduce the vibration and noise generated during the operation of the Roots blower, improve the running stability and service life of the equipment.

[0038] In this embodiment, the damping shell 1 is fixed on the mounting base 3 by bolt connection, ensuring the stability of the overall structure. The soft connection part 2 is connected to the damping shell 1 through flange connection, facilitating disassembly and installation. The anchor bolts 33 at the bottom of the mounting base 3 are used to fix the entire device to the ground, preventing displacement of the device during operation. The damping structure inside the damping shell 1 cooperates with the damping pad 11 to achieve multi-stage damping, effectively reducing the vibration generated by the Roots blower during operation. The damping springs 22 and sound-absorbing materials 23 of the soft connection part 2 not only further isolate the vibration, but also reduce the noise propagation. The reinforcing ribs 32 are metal structures arranged in a diagonal or transverse direction, enhancing the rigidity and stability of the mounting base 3 and ensuring sufficient stiffness of the connecting components. The driving device 4 includes a motor 41 and a coupling 42, with the motor 41 connected to the main shaft of the Roots blower through the coupling 42, stably transmitting power. The combination of these components not only solves the problems of existing damping methods, such as incomplete isolation of the vibration propagation path, uneven effect on different frequency vibrations, and insufficient stiffness of the connecting components, but also achieves higher overall damping effect and connection stability, significantly improving the operation efficiency and service life of the Roots blower, reducing maintenance costs and noise pollution, and providing a more reliable and quieter operating environment for industrial production.

[0039] It should be noted that the damping shell, as prior art, is usually composed of a shell, a support plate, a connecting mechanism, etc. The shell and the support plate are connected through the connecting mechanism, which includes an upper fixed seat, a lower fixed seat, a damping spring ring, and a reinforcing screw. The upper fixed seat is installed on both sides of the shell with a first through hole; the lower fixed seat is located on the support plate with a second through hole; the two are connected by the reinforcing screw, and the damping spring ring is located between the upper fixed seat and the lower fixed seat for damping. In addition, a damping block with sliding connection is provided between the shell and the support plate, and a damping rubber pad layer and an elastic rubber piece are provided on the surface of the damping block to further enhance the damping effect.

[0040] Other existing devices, such as the damping device of a generator set, include a generator set shell, a base, a connecting seat, and a damping and vibration reduction assembly. The connecting seat is slidably inserted into the base, and a damping spring is provided between the base and the pressing plate. The damping and vibration reduction assembly is further improved by cooperating with the guide rod and the sliding block to further improve the damping effect. For example, the damping design of the generator shell, by setting the damping sheath, damping spring, and damping rubber ball in the damping layer, enhances the damping effect, while setting the sound-absorbing cotton and heat dissipation holes, and taking into account the noise reduction and heat dissipation functions. These designs achieve high-efficiency damping and noise reduction effects through the combination of multi-layer structures and various damping materials.

[0041] For example, Figure 3 and Figure 4As shown, the mounting base 3 is arranged at the bottom of the damping shell 1, including a base body 31 and a reinforcing rib 32 arranged on the base body 31, for supporting the entire device and providing additional damping effect. The reinforcing rib 32 is a metal structure arranged obliquely or transversely, for enhancing the rigidity and stability of the mounting base 3. The damping shell 1 is connected with the mounting base 3 through bolts, ensuring the stability of the overall structure. The soft connection part 2 is connected with the damping shell 1 through a flange, facilitating disassembly and installation. The bottom of the mounting base 3 is provided with anchor bolts 33 for fixing the entire device. The driving device 4 is arranged on the other side of the damping shell 1, including a motor 41 and a coupling 42, the motor 41 being connected with the main shaft of the Roots blower through the coupling 42 for power transmission. These connection modes and structural designs ensure the overall stability and reliability of the Roots blower damping base, facilitating installation and maintenance.

[0042] In this embodiment, the damping shell 1 is made of high-strength steel material, internally provided with a spring damper and a rubber damping pad, the spring damper having a diameter of 50 mm and a length of 150 mm, and the rubber damping pad having a thickness of 20 mm, to achieve preliminary damping. The soft connection shell 21 of the soft connection part 2 is made of stainless steel material, internally filled with sound-absorbing cotton with a thickness of 10 mm as sound-absorbing material 23, and the damping spring 22 has a diameter of 30 mm and a length of 100 mm, for further isolating vibration. The base body 31 of the mounting base 3 is made of a steel plate with a thickness of 10 mm, and the reinforcing rib 32 is an angle steel arranged obliquely, with a size of 50 mm x 50 mm x 5 mm, for enhancing the rigidity and stability of the mounting base 3. The damping shell 1 is connected with the mounting base 3 through M12 high-strength bolts, ensuring the stability of the overall structure. The soft connection part 2 is connected with the damping shell 1 through a DN100 flange, facilitating disassembly and installation. The bottom of the mounting base 3 is provided with M16 anchor bolts 33 for fixing the entire device. The motor 41 of the driving device 4 is a Y-series three-phase asynchronous motor with a power of 5.5 kW, and the coupling 42 is an elastic coupling with a size of L=150 mm, for stable power transmission. The combination of these structures and connection modes not only ensures the overall stability and reliability of the Roots blower damping base, but also facilitates installation and maintenance, reduces the vibration and noise of the equipment, and improves the operating efficiency and service life of the equipment.

[0043] The use steps of the device are as follows: first, place the mounting base 3 on the flat ground and fix it through the anchor bolts 33 to ensure the stability of the device. Then, fix the shock-absorbing shell 1 on the mounting base 3 through bolt connection to ensure firm connection. Then, install the soft connection part 2 on one side of the shock-absorbing shell 1 through flange connection and connect the air inlet or air outlet of the Roots blower to ensure tight and good sealing connection. Then, install the Roots blower body inside the shock-absorbing shell 1 to ensure good contact between the blower body and the shock-absorbing structure. Next, connect the motor 41 of the driving device 4 with the main shaft of the Roots blower through the shaft coupling 42 and ensure firm installation of the motor 41. During installation, pay attention to the correct installation of the shock-absorbing pad 11 at the bottom of the shock-absorbing shell 1 and the sound-absorbing material 23 inside the soft connection part 2 to fully play the shock-absorbing and noise-reducing effects. Finally, connect the power supply and start the motor 41, check whether the device runs smoothly, and after confirming that there is no abnormal vibration and noise, it can be formally put into use.

[0044] Although the utility model has disclosed as above with preferable embodiments, it is not used to limit the utility model, anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model should be limited by the claims.

Claims

1. A Roots blower vibration-damping base comprising a vibration-damping casing (1), characterized in that: The shock-absorbing shell (1) is connected with a soft connection part (2), a mounting base (3) and a driving device (4); The shock-absorbing shell (1) is used to accommodate the Roots blower body, which is provided with a shock-absorbing structure inside to achieve preliminary damping; The soft connection part (2) is arranged on one side of the shock-absorbing shell (1) and includes a soft connection shell (21) and an internal damping spring (22), which is used to connect the air inlet or air outlet of the Roots blower and further isolate vibration; The mounting base (3) is arranged at the bottom of the shock-absorbing shell (1) and includes a base body (31) and a reinforcing rib (32) arranged on the base body (31), which is used to support the entire device and provide additional damping effect; The driving device (4) is arranged on the other side of the shock-absorbing shell (1) and is used to drive the Roots blower to operate.

2. A Roots blower vibration reduction base according to claim 1, wherein: The soft connection shell (21) is a hollow structure filled with sound-absorbing material inside to reduce noise propagation.

3. A Roots blower vibration reduction base according to claim 1, wherein: The reinforcing rib (32) is a metal structure arranged obliquely or transversely to enhance the rigidity and stability of the mounting base (3).

4. A Roots blower vibration reduction base according to claim 1, wherein: The shock-absorbing shell (1) is connected with the mounting base (3) through bolts to ensure the stability of the overall structure.

5. A Roots blower vibration reduction base according to claim 1, wherein: The soft connection part (2) is connected with the shock-absorbing shell (1) through flanges for easy disassembly and installation.

6. A Roots blower vibration reduction base according to claim 1, wherein: The driving device (4) includes a motor (41) and a shaft coupling, and the motor (41) is connected with the main shaft of the Roots blower through the shaft coupling to transmit power.

7. A Roots blower vibration isolation base according to claim 1, wherein: The bottom of the shock-absorbing shell (1) is provided with a damping pad (11) to further isolate vibration.

8. A Roots blower vibration reduction base according to claim 1, wherein: The bottom of the mounting base (3) is provided with anchor bolts (33) to fix the entire device.

Images