CN111878396A - A Roots blower with air intake filter and muffler structure - Google Patents

Abstract

The invention discloses a Roots blower with an air inlet filtering and noise reducing structure, which comprises a blower shell, an air inlet pipe body and a bottom groove, wherein a through hole penetrates through the interior of the blower shell, the outer surface of the blower shell is connected with a connecting shaft, the air inlet pipe body is arranged on the upper end surface of the blower shell, the right end surface of the air inlet pipe body is connected with an air inlet port, the bottom groove is arranged below the blower shell, the front end surface of the bottom groove is connected with an air exhaust pipe body, and the rear end surface of the blower shell is attached with a closed cover. This roots's fan with silence structure of admitting air filters the operation that gives sound insulation to inlet port and air outlet port for the both ends quiet type of whole fan is stronger, and the inlet pipe body adopts the appearance of screw thread, makes wind can absorb a large amount of wind noises under the effect of the puigging that the annular distributes at the in-process that gets into, and then improves the noise of inlet port department, cuts the piece automatically to the piece and rubs the cleanness with regularly to the surface of filter screen body, makes whole fan can the long-time operation of efficient.

Description

A Roots blower with air intake filter and muffler structure

technical field

The invention relates to the technical field of Roots blowers, in particular to a Roots blower with an air intake filter and noise reduction structure.

Background technique

The Roots blower is a volumetric blower with the end face of the impeller and the front and rear covers of the blower. The principle is a rotary compressor that uses two vane rotors to make relative motions in the cylinder to compress and transport gas. The blower is simple in structure and convenient to manufacture, and is widely used in aquaculture oxygenation, sewage treatment aeration, cement conveying, and is more suitable for gas conveying and pressurizing systems in low-pressure occasions, and can also be used as a vacuum pump, etc.

At present, during the operation of the Roots blower, the motor and mechanical equipment work at high speed, which will generate a lot of noise, resulting in a lot of noise at the air inlet and outlet, and when used in a poor environment, the filter screen is often stuck. The additional blockage will reduce the power of the fan, and the internal maintenance is difficult. For this reason, we propose a Roots fan with an air intake filter and noise reduction structure.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a Roots blower with an air intake filter and silencing structure, which solves the problem that during the operation of the traditional Roots blower, the motor and mechanical equipment work at high speed, which will generate relatively large noise, resulting in the air inlet and the air inlet. The air outlet is noisy, and when it is used in a poor environment, the filter screen is often blocked by adhesion, which leads to the reduction of the power of the fan and the difficulty of internal maintenance.

In order to achieve the above purpose, the present invention provides the following technical solutions: a Roots blower with an air intake filtration and noise reduction structure, comprising a blower casing, an air inlet pipe body and a bottom groove, the inside of the blower casing is provided with a through hole, and The outer surface of the fan casing is connected with a connecting shaft, the air inlet pipe body is installed on the upper end face of the fan casing, and the right end face of the air inlet pipe body is connected with an air inlet port, the bottom groove is installed under the fan casing, and The front end surface of the bottom groove is connected with an exhaust pipe body, the rear end surface of the fan casing is fitted with a closing cover, and the side surface of the closing cover is connected with a closing side shaft.

Preferably, a closing plate is connected to the outer surface of the connecting shaft, and a fan blade is installed inside the fan casing.

Preferably, the connecting shaft forms a rotating structure between the closing plate and the fan casing, and the closing plate and the upper port of the through hole form a closed structure, and the through hole and the connecting shaft are symmetrically distributed about the center point of the fan casing.

Preferably, a sound insulation layer is adhered to the inner wall of the air inlet pipe body, and a filter mesh body is installed on the inner wall of the air inlet port, and a cleaning hair roller is arranged on the right side of the filter mesh body.

Preferably, the outer shape of the air inlet pipe body is threaded, and the sound insulation layer is bonded to the inner wall of the air inlet pipe body. Disassemble the structure.

Preferably, a drive motor is connected to the lower end surface of the cleaning hair roller, and a screw turntable is connected above the cleaning hair roller, a ball screw is arranged on the right side of the screw turntable, and the right side of the cleaning hair roller is arranged There are protective baffles.

Preferably, the structure of the filter mesh body is an arc-shaped hollow mesh, and the filter mesh body is movably connected to the inner wall of the air inlet port, and the cleaning hair roller forms a rotating structure between the screw turntable and the drive motor.

Preferably, the inner wall of the closure cover is provided with a bearing seat, and the inner wall of the fan casing is movably connected with a sound insulation board, a drainage pipe opening is arranged below the bottom groove, and a sound insulation cushion is fixed on the inner wall of the exhaust pipe body, A sound-insulating baffle is attached to the side surface of the sound-insulating cushion.

Preferably, the closing side shaft forms a rotating structure between the closing cover and the fan casing, the sound insulation board and the inside of the fan casing form a sliding structure, the closing cover and the side end surface of the fan casing form a closed structure, and the sound insulation baffle and the sound insulation cushion are distributed with respect to the inner wall spacing of the exhaust pipe body.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The present invention makes the two ends of the entire fan stronger by sound insulation operation on the air inlet port and the air outlet port, and the inner wall adopts a fan shell with a detachable structure design, which can reduce the noise generated by the motor and the fan, further improve quietness;

2. The present invention can use two sets of through holes to scour the surface of the internal fan blade through the high-pressure water source, which can quickly clean the dirt and impurities remaining on the surface of the fan blade after long-term use, and the bottom of the bottom groove adopts an arc design, which is convenient. Drainage pipes drain sewage;

3. In the present invention, the air inlet pipe body is designed with a detachable structure to facilitate installation and disassembly. At the same time, because the air inlet pipe body adopts a threaded shape, the wind will absorb a large amount of air under the action of the annularly distributed sound insulation layer during the entry process. reduce wind noise, thereby increasing the noise at the air inlet;

4. The present invention realizes air filtration through the filter mesh body installed on the inner wall of the air inlet port with a detachable structure, and the surface of the filter mesh body can be automatically scratched and cleaned on a regular basis, so that the entire fan can run efficiently for a long time and reduce manpower. occupy;

5. The present invention can realize the closing of the closing cover and the rear end surface of the fan shell through the rotating structure between the closed side shaft and the closing cover, which greatly reduces the difficulty of maintenance inside the fan, and adopts a soundproof panel designed with a pull-out structure. It is convenient to replace the sound insulation material in time, and the structure design is reasonable.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the rear view structure schematic diagram of the fan casing of the present invention;

Fig. 3 is the top view structure schematic diagram of the air inlet duct body of the present invention;

Fig. 4 is the side view structure schematic diagram of the closing plate of the present invention;

Fig. 5 is the side view structure schematic diagram of the cleaning hair roller of the present invention;

FIG. 6 is a schematic top view of the structure of the exhaust pipe body of the present invention.

In the figure: 1. Fan shell; 2. Through hole; 3. Connecting shaft; 4. Closing plate; 5. Air inlet pipe body; 6. Sound insulation layer; 7. Air inlet port; 8. Filter mesh body; 9. Cleaning Hair roller; 10, drive motor; 11, screw turntable; 12, ball screw; 13, protective baffle; 14, fan blade; 15, bottom groove; 16, drain pipe; 17, exhaust pipe body; 18. closed side shaft; 19. closed cover; 20, bearing seat; 21, sound insulation board; 22, sound insulation baffle; 23, sound insulation cushion.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figures 1-6, a Roots fan with an air intake filter and noise reduction structure, including a fan casing 1, an air inlet pipe body 5 and a bottom groove 15, the interior of the fan casing 1 is penetrated with a through hole 2, and the fan casing The outer surface of 1 is connected with the connecting shaft 3, the air inlet pipe body 5 is installed on the upper end face of the fan casing 1, and the right end face of the air inlet pipe body 5 is connected with the air inlet port 7, and the bottom groove 15 is installed under the fan casing 1. , and the front end surface of the bottom groove 15 is connected with the exhaust pipe body 17, the rear end surface of the fan casing 1 is fitted with a closing cover 19, and the side surface of the closing cover 19 is connected with a closing side shaft 18. 7 and the air outlet port are sound-insulated, making the two ends of the entire fan more quiet, and the fan shell 1 with a detachable structure design on the inner wall can reduce the noise generated by the motor and the fan, and further improve the quietness.

The outer surface of the connecting shaft 3 is connected with a closing plate 4, and a fan blade 14 is installed inside the fan casing 1. The connecting shaft 3 forms a rotating structure through the closing plate 4 and the fan casing 1, and the closing plate 4 is connected to the through hole 2. The upper port of the fan casing 1 constitutes a closed structure, and the through hole 2 and the connecting shaft 3 are distributed symmetrically about the center point of the fan casing 1. In the present invention, a water pipe can be connected to the two groups of through holes 2 running through the outer surface of the fan casing 1, and a high-pressure water source can be used. Two sets of through holes 2 can be used to scour the surface of the internal fan blade 14, which can quickly clean the dirt and impurities remaining on the surface of the fan blade 14 after long-term use, so that the internal cleaning difficulty is relatively low, and the bottom of the bottom groove 15 adopts an arc. The shape design is convenient for the drainage of sewage from the drain port 16;

The inner wall of the air inlet pipe body 5 is bonded with a sound insulation layer 6, and the inner wall of the air inlet port 7 is installed with a filter mesh body 8, and the right side of the filter mesh body 8 is provided with a cleaning roller 9. It is threaded, and the sound insulation layer 6 is bonded to the inner wall of the air inlet duct body 5. The lower port of the air inlet duct body 5 and the upper port of the fan casing 1 are engaged to form a detachable structure. The present invention is designed through a detachable structure. The air inlet pipe body 5 is easy to install and disassemble, and at the same time, because the air inlet pipe body 5 adopts a threaded shape, the wind will absorb a large amount of wind noise under the action of the annularly distributed sound insulation layer 6 during the entry process, thereby improving Noise at the air inlet to improve quietness;

A drive motor 10 is connected to the lower end surface of the cleaning hair roller 9, and a screw turntable 11 is connected above the cleaning hair roller 9. A ball screw 12 is provided on the right side of the screw turntable 11, and the right side of the cleaning hair roller 9 is provided There is a protective baffle 13, the structure of the filter mesh body 8 is an arc-shaped hollow mesh, and the filter mesh body 8 is movably connected to the inner wall of the air inlet port 7, and the cleaning hair roller 9 is formed between the screw turntable 11 and the drive motor 10. Rotating structure, the present invention realizes air filtration through the filter mesh body 8 installed on the inner wall of the air inlet port 7 with a detachable structure, and at the same time uses the screw transmission principle and the drive of the drive motor 10 to make the cleaning hair roller 9 in the filter mesh body 8. The outer surface of the fan moves left and right in a rotary manner, so that the surface of the filter body 8 can be regularly scratched and cleaned, so that the entire fan can run efficiently for a long time and reduce labor occupation;

The inner wall of the closing cover 19 is provided with a bearing seat 20 , and the inner wall of the fan casing 1 is movably connected with a sound insulation board 21 , a drainage pipe port 16 is arranged below the bottom groove 15 , and a sound insulation cushion 23 is fixed on the inner wall of the exhaust pipe body 17 . , the side surface of the sound insulation cushion layer 23 is attached with a sound insulation baffle 22, the closing side shaft 18 forms a rotating structure through the closing cover 19 and the fan casing 1, and the sound insulation board 21 and the interior of the fan casing 1 form a sliding structure, and the closing cover 19 and the side end face of the fan housing 1 form a closed structure, and the sound insulation baffle 22 and the sound insulation cushion 23 are distributed with respect to the inner wall distance of the exhaust pipe body 17. The closing cover 19 and the rear end surface of the fan casing 1 can be closed, which greatly reduces the maintenance difficulty inside the fan, and the sound insulation board 21 designed with a pull-out structure is convenient for timely replacement of sound insulation materials, and the use of distributed in the exhaust The sound insulation baffles 22 and the sound insulation cushion layer 23 designed on the left and right sides of the inner wall of the air duct body 17 can further reduce the noise at the air outlet, and the structure design is reasonable.

Working principle: For this type of Roots fan, the device is first connected to an external power supply, and the motor is used to drive two sets of fan blades 14 to rotate. 5, so that the lower end connection port of the air inlet duct body 5 is connected to the upper port of the fan housing 1, and then the filter screen body 8 is installed on the air inlet port 7 by the active connection between the filter screen body 8 and the inner wall of the air inlet port 7. inside, and the cleaning roller 9 is set on the right side of the air inlet port 7;

Through the principle of screw drive, the screw turntable 11 drives the cleaning hair roller 9 to move left and right on the front end surface of the filter screen body 8, and at the same time, the driving motor 10 is used to drive the cleaning hair roller 9 to rotate, so that impurities adhering to the surface of the filter screen body 8 can be removed. , save manpower operation, and then install the protective baffle 13 on the front end face of the air inlet port 7 by snapping to play a protective role. Because the air inlet pipe body 5 adopts a threaded ring design, and the inner wall is bonded with a long strip The sound insulation layer 6 can effectively reduce wind noise, and at the same time, the use of the sound insulation board 21 on the inner wall of the fan casing 1 can reduce motor and various mechanical noises;

Using the rotation structure of the closing side shaft 18 and the closing cover 19 at the rear end can make the closing cover 19 unfold or close the rear end surface of the fan casing 1, thereby greatly reducing the maintenance difficulty inside the fan casing 1, and at the exit door The inner wall of the exhaust pipe body 17 is installed with multiple sets of sound insulation cushions 23, and the sound insulation cushions 23 are distributed obliquely from left to right. The sound insulation baffle 22 can be used to reduce the wind noise at the air outlet. After use, the closing plate 4 can be used to connect with the The rotating structure formed by the shaft 3 expands the two groups of through holes 2, and the external high-pressure nozzle can scour and clean the inner wall of the fan casing 1 and the surface of the fan blade 14.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a roots's fan with it filters amortization structure to admit air, includes fan shell (1), body (5) and kerve (15) of intaking, its characterized in that: the utility model discloses a fan, including fan shell (1), right-hand member face is connected with income wind port (7), the inside of fan shell (1) runs through there is through hole (2), and the surface of fan shell (1) is connected with connecting axle (3), the body of intaking (5) is installed in the up end of fan shell (1), and the right-hand member face of the body of intaking (5) is connected with into wind port (7), kerve (15) are installed in the below of fan shell (1), and the preceding terminal surface of kerve (15) is connected with exhaust pipe body (17), the rear end laminating of fan shell (1) has closing cap (19), and the side surface of closing cap (19) is connected with closed.

2. The roots blower with an air inlet filtering and noise reduction structure as claimed in claim 1, wherein: the outer surface of the connecting shaft (3) is connected with a closing plate (4), and fan blades (14) are arranged inside the fan shell (1).

3. The roots blower with an air intake filtering and noise reduction structure as claimed in claim 2, wherein: connecting axle (3) constitute rotating-structure through between closing plate (4) and fan shell (1), and closing plate (4) and the last port of through hole (2) constitute closed structure, through hole (2) and connecting axle (3) all distribute about the central point bilateral symmetry of fan shell (1).

4. The roots blower with an air inlet filtering and noise reduction structure as claimed in claim 1, wherein: the inner wall of the air inlet pipe body (5) is bonded with a sound insulation layer (6), a filter screen body (8) is installed on the inner wall of the air inlet port (7), and a cleaning hair roller (9) is arranged on the right side of the filter screen body (8).

5. The roots blower with an air inlet filtering and noise reduction structure as claimed in claim 4, wherein: the appearance structure of income wind body (5) is the screw thread form, and puigging (6) and the inner wall adhesive connection of income wind body (5), the lower port of income wind body (5) passes through the block with the last port of fan shell (1) and constitutes detachable construction.

6. The roots blower with an air inlet filtering and noise reduction structure as claimed in claim 4, wherein: the lower end face of the cleaning wool roller (9) is connected with a driving motor (10), the upper portion of the cleaning wool roller (9) is connected with a screw rod rotary table (11), a ball screw rod (12) is arranged on the right side of the screw rod rotary table (11), and a protective baffle (13) is arranged on the right side of the cleaning wool roller (9).

7. The roots blower with an air inlet filtering and noise reduction structure as claimed in claim 4, wherein: the structure of the filter screen body (8) is arc-shaped hollow net-shaped, the filter screen body (8) is movably connected with the inner wall of the air inlet port (7), and the cleaning wool roller (9) forms a rotating structure with the driving motor (10) through the screw rod rotary table (11).

8. The roots blower with an air intake filtering and noise reduction structure as claimed in claim 6, wherein: the inner wall of closing lid (19) is provided with bears seat (20), and the inner wall swing joint of fan shell (1) has acoustic celotex board (21), the below of kerve (15) is provided with drain pipe mouth (16), and the inner wall of the body of airing exhaust (17) is fixed with sound insulation bed course (23), the side surface laminating of sound insulation bed course (23) has sound insulation baffle (22).

9. The roots blower with an air intake filtering and noise reduction structure as claimed in claim 8, wherein: the closed side shaft (18) forms a rotating structure between the closed cover (19) and the fan shell (1), the sound insulation board (21) and the inside of the fan shell (1) form a sliding structure, the closed cover (19) and the side end face of the fan shell (1) form a closed structure, and the sound insulation baffle (22) and the sound insulation cushion layer (23) are distributed at intervals relative to the inner wall of the air exhaust pipe body (17).

Images