Vibration and noise reduction environment-friendly Roots blower

Abstract

The utility model discloses a vibration and noise reduction environment-friendly Roots blower which comprises a bottom frame, the upper surface of the bottom frame is fixedly connected with a shock pad, the upper surface of the shock pad is fixedly connected with a blower and a driving motor respectively, the output end of the driving motor is fixedly connected with a first belt pulley, and the output end of the first belt pulley is fixedly connected with a second belt pulley. And the inner surface of the first belt pulley is in transmission connection with a belt. Through the arrangement of a shock pad, a dustproof net and other structures, under the action of the dustproof net, the heat dissipation opening can be protected, so that dust and other floating objects in the external environment can be prevented from entering the driving motor through the heat dissipation opening, and the situation that the service life of the driving motor is affected due to dust entering can be avoided; meanwhile, noise generated when the driving motor is used is prevented from being increased, vibration force transmitted to the bottom frame when the draught fan and the driving motor operate can be weakened under the action of the shock pads, and therefore structural noise caused by vibration can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of Roots blowers, and particularly relates to a vibration damping, noise reducing and environment-friendly Roots blower. Background Art

[0002] A Roots blower is a positive displacement blower, which has many advantages such as simple structure, stable operation and convenient maintenance. It usually consists of components such as a driving device, a transmission system and a blower body. The noise reducing and environment-friendly Roots blower is a type of blower optimized in terms of noise reduction and environmental protection on the basis of the traditional Roots blower. By changing the shape, structure and material of the impeller, it reduces air flow impact and turbulence, reduces the noise generated during operation, and uses efficient sound insulation materials such as sound insulation boards inside the blower housing to absorb and block the spread of noise. At the same time, specially designed mufflers are installed at the air inlet and outlet to further weaken the noise generated by the air flow, so as to achieve the effect of noise reduction and environmental protection.

[0003] In the prior art, the Roots blowers on the market are usually powered by a driving motor. However, the driving motor generates a certain amount of heat during operation. In order to dissipate the heat generated by the motor operation to the external environment in time, multiple heat dissipation openings are usually opened on the motor housing. However, there is usually no good dust-proof structure at the motor heat dissipation openings. If the motor is used in a workshop with a poor environment, it may cause floating objects such as dust in the air to enter the interior of the motor through the heat dissipation openings of the motor. If the interior of the motor is not cleaned in time, it may not only cause dust to enter between moving parts such as bearings and gears, exacerbate friction and wear, and shorten the service life of the motor, but also may increase the noise generated during the use of the motor. Therefore, a vibration damping, noise reducing and environment-friendly Roots blower is needed. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a vibration damping, noise reducing and environment-friendly Roots blower. Through the settings of structures such as shock pads and dust-proof nets, under the action of the dust-proof net, the protection of the heat dissipation openings can be realized, so as to avoid floating objects such as dust in the external environment from entering the interior of the driving motor through the heat dissipation openings. Furthermore, it can avoid the driving motor being affected by the entry of dust and shortening its own service life, and at the same time avoid increasing the noise generated during the use of the driving motor. Under the action of the shock pads, the vibration force transmitted to the chassis during the operation of the blower and the driving motor can be weakened, so as to reduce the structural noise caused by vibration. Through the setting of the connecting plate, when the dust-proof net needs to be cleaned after a period of use, by pulling the connecting plate, the fixation of the dust-proof net can be released, so that the dust-proof net can be removed from the motor housing for cleaning, which is simple and fast.

[0005] The present utility model also provides a shock-absorbing, noise-reducing and environment-friendly Roots blower having the above-mentioned features, which includes a chassis. A shock pad is fixedly connected to the upper surface of the chassis. A blower and a driving motor are respectively fixedly connected to the upper surface of the shock pad. A first pulley is fixedly connected to the output end of the driving motor. A belt is drivingly connected to the inner surface of the first pulley. A second pulley is drivingly connected to the inner surface of the belt. A rotating shaft is rotatably connected to the blower. The side surface of the second pulley is fixedly connected to the rotating shaft. A motor housing is provided on the driving motor. A plurality of heat dissipation openings are formed in the motor housing. A connecting ring is movably connected to the side surface of the motor housing. A dust-proof net is fixedly connected to the inner surface of the connecting ring.

[0006] A fixing structure, which includes a positioning block, a limiting rod, a slider, a connecting plate, a fixing block and a docking block. The side surface of the positioning block is fixedly connected to the motor housing. The side surface of the limiting rod is fixedly connected to the positioning block. The inner surface of the slider is slidably connected to the limiting rod. The side surface of the connecting plate is fixedly connected to the slider. The side surface of the fixing block is fixedly connected to the connecting plate. The side surface of the docking block is fixedly connected to the dust-proof net. The outer surface of the docking block is movably connected to the positioning block. The outer surface of the fixing block is movably connected to the docking block.

[0007] According to the described shock-absorbing, noise-reducing and environment-friendly Roots blower, a bearing housing is fixedly connected to the upper surface of the shock pad. The side surfaces of the first pulley and the second pulley are both rotatably connected to the bearing housing, which plays a protective role for the first pulley and the second pulley.

[0008] According to the described shock-absorbing, noise-reducing and environment-friendly Roots blower, the dust-proof net is located on one side of the heat dissipation opening, and the side surface of the connecting ring is in contact with the motor housing.

[0009] According to the described shock-absorbing, noise-reducing and environment-friendly Roots blower, a positioning groove is formed in the positioning block, and the outer surface of the docking block is movably connected to the positioning groove.

[0010] According to the described shock-absorbing, noise-reducing and environment-friendly Roots blower, a spring is slidably sleeved on the outer surface of the limiting rod. One end of the spring is fixedly connected to the side surface of the slider, and the other end of the spring away from the slider is fixedly connected to the inner side wall of the positioning block, enabling the fixing block to quickly enter the fixing groove.

[0011] According to the described shock-absorbing, noise-reducing and environment-friendly Roots blower, a fixing groove is formed in the docking block, and the outer surface of the fixing block is movably connected to the fixing groove.

[0012] According to the described shock-absorbing, noise-reducing and environment-friendly Roots blower, the outer surface of the slider is slidably connected to the positioning block, and the limiting rod penetrates through the slider.

[0013] According to the described vibration-damping, noise-reducing and environment-friendly Roots blower, the drive motor is electrically connected to an external power supply, and the number of the fixing structures is multiple and they are distributed in an annular array.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 It is the overall structure diagram of a vibration-damping, noise-reducing and environment-friendly Roots blower of the present utility model;

[0017] Figure 2 It is the structural schematic diagram of the shock pad part of a vibration-damping, noise-reducing and environment-friendly Roots blower of the present utility model;

[0018] Figure 3 It is the structural schematic diagram of the bearing housing part of a vibration-damping, noise-reducing and environment-friendly Roots blower of the present utility model;

[0019] Figure 4 It is the structural schematic diagram of the cross-section part of the dust-proof net of a vibration-damping, noise-reducing and environment-friendly Roots blower of the present utility model;

[0020] Figure 5 It is the structural schematic diagram of the cross-section part of the docking block of a vibration-damping, noise-reducing and environment-friendly Roots blower of the present utility model;

[0021] Figure 6 It is the structural schematic diagram of the slider part of a vibration-damping, noise-reducing and environment-friendly Roots blower of the present utility model.

[0022] Legend Explanation:

[0023] 1. Chassis; 2. Shock pad; 3. Blower; 4. Drive motor; 5. First pulley; 6. Belt; 7. Second pulley; 8. Rotating shaft; 9. Bearing housing; 10. Motor housing; 11. Heat dissipation port; 12. Connecting ring; 13. Dust-proof net; 14. Positioning block; 15. Limiting rod; 16. Slider; 17. Connecting plate; 18. Fixed block; 19. Docking block; 20. Spring; 21. Positioning groove; 22. Fixed groove; 23. Fixing structure. Detailed Embodiment

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0025] Reference Figures 1-6 The utility model embodiment is a vibration-reducing and noise-reducing environmentally friendly Roots blower, which includes a base frame 1, a shock-absorbing pad 2 is fixedly connected to the upper surface of the base frame 1, a blower 3 and a drive motor 4 are fixedly connected to the upper surface of the shock-absorbing pad 2, the drive motor 4 is electrically connected to an external power supply, the output end of the drive motor 4 is fixedly connected to a first pulley 5, the inner surface of the first pulley 5 is transmission-connected to a belt 6, the inner surface of the belt 6 is transmission-connected to a second pulley 7, the blower 3 is rotatably connected to a rotating shaft 8, and the second pulley 7 The side surface is fixedly connected to the rotating shaft 8, the upper surface of the shock-absorbing pad 2 is fixedly connected to the load-bearing shell 9, the side surfaces of the first pulley 5 and the second pulley 7 are rotatably connected to the load-bearing shell 9, the driving motor 4 is provided with a motor shell 10, and a plurality of heat dissipation ports 11 are opened on the motor shell 10. The side surface of the motor shell 10 is movably connected to a connecting ring 12, and the inner surface of the connecting ring 12 is fixedly connected to a dustproof net 13, the dustproof net 13 is located on one side of the heat dissipation port 11, and the side surface of the connecting ring 12 is in contact with the motor shell 10.

[0026] The fixing structure 23 includes a positioning block 14, a limiting rod 15, a slider 16, a connecting plate 17, a fixing block 18 and a docking block 19. The side surface of the positioning block 14 is fixedly connected to the motor housing 10, the side surface of the limiting rod 15 is fixedly connected to the positioning block 14, the inner surface of the slider 16 is slidably connected to the limiting rod 15, the side surface of the connecting plate 17 is fixedly connected to the slider 16, the outer surface of the slider 16 is slidably connected to the positioning block 14, the limiting rod 15 passes through the slider 16, the side surface of the fixing block 18 is fixedly connected to the connecting plate 17, and the side surface of the docking block 19 is fixedly connected to the dustproof net 13 The outer surface of the docking block 19 is movably connected to the positioning block 14, the outer surface of the fixed block 18 is movably connected to the docking block 19, the positioning block 14 is provided with a positioning groove 21, the outer surface of the docking block 19 is movably connected to the positioning groove 21, the outer surface of the limit rod 15 is slidably sleeved with a spring 20, one end of the spring 20 is fixedly connected to the side surface of the slider 16, and the end of the spring 20 away from the slider 16 is fixedly connected to the side inner wall of the positioning block 14, a fixing groove 22 is provided on the docking block 19, the outer surface of the fixed block 18 is movably connected to the fixing groove 22, and the number of the fixing structures 23 is multiple and distributed in a ring array.

[0027] Working principle: Under the action of the dust-proof net 13, the heat dissipation openings 11 on the motor housing 10 can be protected, so as to prevent floating impurities such as dust in the external air from directly entering the interior of the drive motor 4 through the heat dissipation openings 11. When the fan 3 and the drive motor 4 are operating, under the action of the shock-absorbing pad 2, the vibration energy generated by the fan 3 and the drive motor 4 can be absorbed and buffered, thereby weakening the vibration force transmitted to the chassis 1. When the vibration is slowed down, the vibration amplitude transmitted to the chassis 1 and the surrounding environment will decrease, and thus the structural noise caused by vibration can be reduced. When the air permeability of the dust-proof net 13 decreases after a period of use, by pulling the connecting plate 17, the moving connecting plate 17 can drive the slider 16 to move horizontally on the limiting rod 15, and the slider 16 will gradually squeeze the spring 20 on the inner wall of the positioning block 14 during the movement, so that the spring 20 is in a taut state. At the same time, the moving connecting plate 17 will drive the fixed block 18 to move. When the moving fixed block 18 disengages from the fixed slot 22, the fixation of the connecting ring 12 and the dust-proof net 13 is released, and then by pulling the connecting ring 12, the connecting ring 12, the dust-proof net 13 and the device on the connecting ring 12 can be removed from the motor housing 10, which is convenient for cleaning the dust-proof net 13. Then, release the pulled connecting plate 17, so that the spring 20 rebounds without being restricted by the pulling force, and the rebounding spring 20 can drive the slider 16, the connecting plate 17 and the fixed block 18 to move back to their original positions. After the dust-proof net 13 is cleaned, pull the connecting plate 17, so that the moving connecting plate 17 drives the slider 16 and the fixed block 18 to move while keeping the spring 20 in a taut state. When the moving fixed block 18 does not affect the insertion between the docking block 19 and the positioning groove 21, insert the docking block 19 into the positioning groove 21, which can realize the preliminary connection between the motor housing 10 and the dust-proof net 13, and at the same time make the fixed block 18 correspond to the fixed slot 22. Then, release the pulled connecting plate 17, so that the spring 20 rebounds without being restricted by the pulling force, and the rebounding spring 20 can drive the slider 16, the connecting plate 17 and the fixed block 18 to move back to their original positions. When the moving fixed block 18 is inserted into the fixed slot 22, the fixation of the connecting ring 12 is completed, and the fixation between the motor housing 10 and the dust-proof net 13 is realized, so that the dust-proof net 13 will not detach from the motor housing 10, and thus the dust-proof net 13 can stably be located on one side of the heat dissipation opening 11 for protection work.

[0028] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A vibration-reducing and noise-reducing environmentally friendly Roots blower, characterized in that: include: A base frame (1), the upper surface of the base frame (1) is fixedly connected to a shock-absorbing pad (2), the upper surface of the shock-absorbing pad (2) is respectively fixedly connected to a fan (3) and a drive motor (4), the output end of the drive motor (4) is fixedly connected to a first pulley (5), the inner surface of the first pulley (5) is transmission-connected to a belt (6), the inner surface of the belt (6) is transmission-connected to a second pulley (7), the fan (3) is rotatably connected to a rotating shaft (8), the side surface of the second pulley (7) is fixedly connected to the rotating shaft (8), the drive motor (4) is provided with a motor housing (10), the motor housing (10) is provided with a plurality of heat dissipation ports (11), the side surface of the motor housing (10) is movably connected to a connecting ring (12), and the inner surface of the connecting ring (12) is fixedly connected to a dustproof net (13); A fixed structure (23), the fixed structure (23) comprising a positioning block (14), a limiting rod (15), a slider (16), a connecting plate (17), a fixed block (18) and a docking block (19), the side surface of the positioning block (14) being fixedly connected to the motor housing (10), the side surface of the limiting rod (15) being fixedly connected to the positioning block (14), the inner surface of the slider (16) being slidably connected to the limiting rod (15), the side surface of the connecting plate (17) being fixedly connected to the slider (16), the side surface of the fixed block (18) being fixedly connected to the connecting plate (17), the side surface of the docking block (19) being fixedly connected to the dustproof net (13), the outer surface of the docking block (19) being movably connected to the positioning block (14), and the outer surface of the fixed block (18) being movably connected to the docking block (19).

2. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: The upper surface of the shock-absorbing pad (2) is fixedly connected to a bearing shell (9), and the side surfaces of the first belt pulley (5) and the second belt pulley (7) are both rotatably connected to the bearing shell (9).

3. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: The dustproof net (13) is located on one side of the heat dissipation port (11), and the side surface of the connecting ring (12) is in contact with the motor housing (10).

4. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: The positioning block (14) is provided with a positioning groove (21), and the outer surface of the docking block (19) is movably connected to the positioning groove (21).

5. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: A spring (20) is slidably sleeved on the outer surface of the limiting rod (15), one end of the spring (20) is fixedly connected to the side surface of the slider (16), and the end of the spring (20) away from the slider (16) is fixedly connected to the inner side wall of the positioning block (14).

6. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: The docking block (19) is provided with a fixing groove (22), and the outer surface of the fixing block (18) is movably connected to the fixing groove (22).

7. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: The outer surface of the slider (16) is slidably connected to the positioning block (14), and the limiting rod (15) passes through the slider (16).

8. The vibration-reducing and noise-reducing environmentally friendly Roots blower according to claim 1, characterized in that: The driving motor (4) is electrically connected to an external power source, and the number of the fixed structures (23) is multiple and distributed in a ring array.

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