Air-cooled double-screw air compressor

Abstract

The utility model discloses an air-cooled double-screw air compressor, which belongs to the technical field of double-screw air compressors and comprises an air-cooled box, an air compressor main unit, a self-cleaning inlet air filtering mechanism and a fan radiating mechanism are mounted in the air-cooled box, the air-cooled box is used for drawing air to flow and air-cooling the air compressor main unit, the self-cleaning inlet air filtering mechanism comprises an air inlet cylinder, and the air inlet cylinder is provided with an air outlet. A transmission rod is rotationally arranged, the front end and the rear end of the transmission rod are connected with a rotary cleaning piece and a driven fan respectively, and the outer end of the air inlet barrel is covered with a hopper-shaped filter screen. According to the technical scheme, a fan heat dissipation mechanism works to suck air into an air cooling box, a self-cleaning air inlet filtering mechanism filters the air entering the air cooling box, one part of the air is sucked by an air compressor main machine, the other part of the air is discharged by the fan heat dissipation mechanism to take away heat, and when the air is sucked, the air is cooled to the air cooling box. Under the action of airflow, the driven fan rotates, and then the rotary cleaning piece is driven to rotate through the transmission rod to clean the surface of the hopper-shaped filter screen, so that dust accumulation is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to double screw air compressor technical field, concretely is a kind of air-cooled double screw air compressor. BACKGROUND

[0002] Double screw air compressor is composed of two intermeshing screw rods, one of which is a driving screw (male rotor), and the other is a passive screw (female rotor). The tooth groove of the driving screw and the thread of the passive screw intermesh, and they rotate in the casing while sucking air from the air inlet, compressing it through the rotation of the screw rod, and then discharging it from the air outlet. Its working process can be divided into four processes: air intake, compression, air exhaust and cooling.

[0003] The current double screw air compressor often uses air cooling or water cooling to dissipate heat from the equipment. When air cooling is used, the flowing air is usually used to blow the surface of the air compressor to carry away the heat released by the air compressor, thereby playing a cooling role. However, when the air compressor is working, static electricity is usually generated on the surface of its shell, which then adsorbs dust. After a long time of use, a layer of dust will be attached to the surface of the air compressor, affecting heat dissipation. Manual cleaning is required. In addition, the air compressor usually needs to be equipped with a filtering device for use together to avoid the intake of air containing too much dust, which can cause serious wear of the internal screw rod. Therefore, a kind of air-cooled double screw air compressor is proposed to solve the above problems. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide an air-cooled double screw air compressor. The double screw air compressor sucks air into the air-cooled box through the fan heat dissipation mechanism, and filters the air entering the air-cooled box through the self-cleaning air inlet filter mechanism. Part of the air is sucked into the air compressor host, and the other part is discharged by the fan heat dissipation mechanism to carry away heat. The filtered air has low dust content and is not easy to form dust on the surface of the air compressor host, which can affect heat dissipation and reduce the wear of the screw rod. It achieves two goals at once. When the air is sucked in, the passive fan will be driven to rotate under the action of the airflow, thereby driving the rotating cleaning piece to rotate through the transmission rod to clean the surface of the hopper-shaped filter screen, avoiding dust accumulation. The technical problems of the prior art, such as the surface of the air-cooled air compressor being covered with dust after a long time of use, affecting heat dissipation, requiring manual cleaning, and usually needing to be equipped with a filtering device for use together, increasing the cost, are solved.

[0005] The technical solution adopted by the embodiment of the present application to solve its technical problem is:

[0006] A wind-cooled twin-screw air compressor includes a wind-cooled housing in which the air compressor main unit is installed. The wind-cooled housing is covered with a cover plate, and a front end plate and a rear end plate are respectively provided at the front and rear ends. A self-cleaning air intake filter mechanism is installed on the front end plate. A fan cooling mechanism is used to draw air to circulate and cool the air compressor main unit. The self-cleaning air intake filter mechanism includes an air intake duct, in which a bearing cylinder is fixedly installed by a horizontal mounting bracket. A transmission rod is rotatably installed in the bearing cylinder. The front and rear ends of the transmission rod are respectively connected to a rotating cleaning component and a passive fan. A funnel-shaped filter screen is provided on the outer end of the air intake duct.

[0007] With the above-described structure, the fan cooling mechanism draws air into the air-cooled box, and the self-cleaning air intake filter filters the air entering the air-cooled box. Part of the air is drawn into the air compressor main unit, and the other part is discharged by the fan cooling mechanism to remove heat. The filtered air has a low dust content, which makes it less likely for dust to form on the surface of the air compressor main unit, affecting heat dissipation. It can also reduce the wear of the screw, achieving two goals at once. When air is drawn in, the passive fan is driven to rotate under the action of airflow, which in turn drives the rotating cleaning component to rotate through the transmission rod, cleaning the surface of the funnel-shaped filter screen and preventing dust accumulation.

[0008] In one possible implementation, the rotating cleaning component includes a mounting ring with symmetrically arranged brush plates fixedly connected to its side. The inner side of the brush plates is covered with a bristle layer, which is in close contact with the funnel-shaped filter screen.

[0009] With the above structure, as the brush plate rotates with the transmission rod, the bristle layer on it can continuously rotate and brush the surface of the bucket-shaped filter screen to clean the dust filtered down, without the need for manual operation.

[0010] In one possible implementation, a transmission groove is formed at the front end of the transmission rod, and the opening form and size of the mounting ring are consistent with the cross-section of the rod segment with the transmission groove.

[0011] With the above-described structure, a detachable transmission connection between the rotating cleaning component and the transmission rod can be achieved through the snap-fit ​​action of the mounting ring and the transmission groove.

[0012] In one possible implementation, the rear end plate includes a mounting plate on which a centrally located T-shaped partition is fixedly mounted, the T-shaped partition being fitted to the end of the air compressor main unit.

[0013] With the above structural form, the interior of the air-cooled box is divided into two relatively independent air ducts by a T-shaped partition, so as to avoid turbulence and the resulting decrease in heat dissipation effect.

[0014] In one possible implementation, the fan cooling mechanism includes a longitudinal mounting frame, on which a disc motor is mounted. The output shaft of the disc motor is fixedly connected to fan blades, and the fan blades are covered with an air outlet duct that is fixedly connected to the mounting plate.

[0015] With the above-described structure, when the disc motor is working, it drives the fan blades to rotate, thereby drawing airflow.

[0016] In one possible implementation, a limiting frame is fixedly installed on the air-cooled box, and a pluggable filter plate is inserted between the limiting frame and the air outlet.

[0017] With the above-described structure, the pluggable filter plate can block the opening of the air outlet, preventing dust from entering the air-cooled box through the air outlet when not in use.

[0018] In one possible implementation, the pluggable filter plate includes a plug plate with a through hole and a circular filter screen fixedly disposed in the hole, the size of the circular filter screen being consistent with the size of the opening in the air outlet duct.

[0019] With the above-described structure, the insert plate is used to engage with the limiting frame to fix the installation, while the circular filter screen can completely cover the air outlet opening to perform a filtering function.

[0020] In one possible implementation, the bottom plate of the air-cooled box is provided with an air compressor outlet port that communicates with the air compressor main unit's air outlet.

[0021] The above-described structure provides the necessary structural foundation for connecting the air compressor main unit to the air outlet pipe.

[0022] In summary, this utility model has the following beneficial technical effects:

[0023] The fan cooling mechanism draws air into the air-cooled box, and the self-cleaning intake air filter filters the air entering the air-cooled box. Part of the air is drawn into the air compressor main unit, and the other part is discharged by the fan cooling mechanism to remove heat. The filtered air has a low dust content, which makes it less likely for dust to form on the surface of the air compressor main unit, affecting heat dissipation. It can also reduce the wear of the screw, achieving two goals at once. In particular, when air is drawn in, the passive fan is driven to rotate under the action of airflow, which in turn drives the rotating cleaning component to rotate through the transmission rod, cleaning the surface of the funnel-shaped filter screen and preventing dust accumulation. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1The whole structure schematic view of the utility model;

[0026] Figure 2 The internal structure schematic view of the utility model;

[0027] Figure 3 The rear view of the self-cleaning air inlet filtering mechanism of the utility model;

[0028] Figure 4 The front view of the self-cleaning air inlet filtering mechanism of the utility model;

[0029] Figure 5 The structure schematic view of the fan heat dissipation mechanism of the utility model;

[0030] Figure 6 The local structure schematic view of the fan heat dissipation mechanism of the utility model.

[0031] In the drawing: 1, air-cooled box;11, cover plate;12, front end plate;13, rear end plate;131, mounting plate;132, T-shaped partition;14, air compressor outlet port;2, air compressor host;3, self-cleaning air inlet filtering mechanism;31, air inlet cylinder;32, horizontal mounting frame;33, bearing cylinder;34, transmission rod;341, transmission groove;35, passive fan;36, bucket-shaped filter screen;37, rotating cleaning piece;371, mounting ring;372, brush plate;373, brush layer;4, fan heat dissipation mechanism;41, vertical mounting frame;42, disc motor;43, fan blade;44, air outlet cylinder;45, limiting frame;46, plug-in filter plate;461, plug-in plate;462, circular filter screen. Specific implementation

[0032] The technical scheme in the embodiment of the application is to solve the problems in the above background art, and the general idea is as follows:

[0033] As shown in the drawing, Figure 1 - Figure 2 The air-cooled double-screw air compressor provided by the embodiment comprises an air-cooled box 1, wherein an air compressor host 2 is installed in the air-cooled box 1, a cover plate 11 is arranged on the air-cooled box 1, front and rear end plates 12 and 13 are arranged at the front and rear ends of the air-cooled box 1 respectively, a self-cleaning air inlet filtering mechanism 3 is installed on the front end plate 12, and a fan heat dissipation mechanism 4 is used to suck air flow and air-cool the air compressor host 2. Through the above structure, the fan heat dissipation mechanism 4 works to suck air into the air-cooled box 1, and the self-cleaning air inlet filtering mechanism 3 filters the air entering the air-cooled box 1, wherein part of the air is sucked into the air compressor host 2, and the other part is discharged by the fan heat dissipation mechanism 4 to carry away heat. The filtered air has low dust content, is not easy to form dust on the surface of the air compressor host 2 to affect heat dissipation, and can also reduce the wear of the screw, achieving two purposes at one time.

[0034] AsFigure 3 Figure 4 As shown in the drawings, the self-cleaning air inlet filter mechanism 3 comprises an air inlet cylinder 31, a bearing cylinder 33 is fixedly installed through a transverse mounting bracket 32, a transmission rod 34 is rotationally arranged in the bearing cylinder 33, a rotating cleaning piece 37 and a passive fan 35 are respectively connected to the front and rear ends of the transmission rod 34, and a hopper-shaped filter screen 36 is covered on the outer end of the air inlet cylinder 31. When air is sucked in, the passive fan 35 will be driven to rotate under the action of the airflow, and then the rotating cleaning piece 37 is driven to rotate through the transmission rod 34, so as to clean the surface of the hopper-shaped filter screen 36 and avoid dust accumulation.

[0035] The rotating cleaning piece 37 comprises a mounting ring 371, symmetrically arranged brush plates 372 are fixedly connected to the side surface of the mounting ring 371, a bristle layer 373 is attached to the inner side surface of the brush plate 372, and the bristle layer 373 is closely attached to the hopper-shaped filter screen 36. Through the above structure, when the brush plate 372 rotates with the transmission rod 34, the bristle layer 373 arranged thereon can continuously rotate and brush the surface of the hopper-shaped filter screen 36 to clean the filtered dust without manual operation.

[0036] In addition, a transmission groove 341 is formed at the front end of the transmission rod 34, the opening form and size of the mounting ring 371 are consistent with the cross section of the rod segment of the transmission rod 34 provided with the transmission groove 341. Through the above structure, the mounting ring 371 and the transmission groove 341 can be connected through clamping, so as to realize the detachable transmission connection between the rotating cleaning piece 37 and the transmission rod 34.

[0037] As shown in the drawings, Figure 5 Figure 6 As shown in the drawings, the rear end plate 13 comprises a mounting plate 131, a T-shaped partition plate 132 is fixedly arranged on the mounting plate 131, the T-shaped partition plate 132 is attached to the end of the air compressor main machine 2, and through the above structure, the T-shaped partition plate 132 divides the air cooling box 1 into two relatively independent air ducts, so as to avoid the occurrence of turbulent flow and cause the heat dissipation effect to be reduced.

[0038] In addition, the fan heat dissipation mechanism 4 comprises a longitudinal mounting bracket 41, a disc-type motor 42 is installed on the longitudinal mounting bracket 41, a fan blade 43 is fixedly connected to the output shaft of the disc-type motor 42, and an air outlet cylinder 44 is fixedly connected to the mounting plate 131. Through the above structure, when the disc-type motor 42 works, the fan blade 43 is driven to rotate, so as to play the role of pumping airflow.

[0039] As shown in the drawings, Figure 5 Figure 6 As shown in the drawings, a limiting bracket 45 is fixedly arranged on the air cooling box 1, a plug-in filter plate 46 is inserted between the limiting bracket 45 and the air outlet cylinder 44. Through the above structure, the plug-in filter plate 46 can be arranged to block the opening of the air outlet cylinder 44, so as to avoid dust entering the air cooling box 1 when it is not in use.​​​

[0040] The plug-in filter plate 46 comprises a plug-in plate 461, a through hole is formed on the plug-in plate 461, and a circular filter screen 462 is fixedly arranged in the through hole, the size of the circular filter screen 462 is consistent with the size of the opening of the air outlet cylinder 44, through the above structure, the plug-in plate 461 is used for being clamped with the limiting frame 45 to play a role of fixed installation, and the circular filter screen 462 can completely cover the opening of the air outlet cylinder 44 to play a filtering role.

[0041] As shown in Figure 5 The bottom plate of the air-cooled box 1 is provided with an air compressor air outlet port 14 communicated with the air outlet of the air compressor host 2, through the above structure, necessary structural basis is provided for connecting the air outlet pipe of the air compressor host 2.

[0042] The use principle and use process of the utility model are as follows:

[0043] The fan heat dissipation mechanism 4 works to suck air into the air-cooled box 1, and the self-cleaning air inlet filter mechanism 3 is used for filtering the air entering the air-cooled box 1, part of the air is sucked into the air compressor host 2, and the other part is discharged by the fan heat dissipation mechanism 4 to take away heat, the filtered air has low dust content, dust is not easy to form on the surface of the air compressor host 2 to affect heat dissipation, and the wear of the screw rod can be reduced, and two advantages are achieved at one time.

[0044] In the above process, when the air is sucked, the passive fan 35 is driven to rotate under the action of the airflow, and then the transmission rod 34 drives the rotating cleaning piece 37 to rotate, and the surface of the hopper-shaped filter screen 36 is cleaned, so that dust is not easy to accumulate, and the specific performance is that when the brush plate 372 rotates with the transmission rod 34, the brush layer 373 arranged on the brush plate 372 can rotate and brush the surface of the hopper-shaped filter screen 36 to clean the filtered dust, and manual operation is not needed.

[0045] In addition, the plug-in filter plate 46 arranged can block the opening of the air outlet cylinder 44, so that dust is not easy to enter the air-cooled box 1 through the air outlet cylinder 44 when not in use.

[0046] Finally, it should be noted that: obviously, the above examples are only examples for clearly illustrating the utility model, and are not limited to the implementation mode. For ordinary skilled persons in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. The obvious changes or changes derived therefrom are still within the protection scope of the utility model.

Claims

1. A wind-cooled double screw air compressor characterized by, Include: Air-cooled box (1), wherein the air compressor host (2) is installed, the air-cooled box (1) upper cover is provided with cover plate (11), and the front and rear ends are provided with front end plate (12) and rear end plate (13) respectively; Self-cleaning air inlet filter mechanism (3) is installed on the front end plate (12); Fan cooling mechanism (4) is used to draw air flow, and the air-cooled box (2) is air-cooled; Wherein, the self-cleaning air inlet filter mechanism (3) includes air inlet cylinder (31), wherein the bearing cylinder (33) is fixedly installed through the horizontal mounting bracket (32), the transmission rod (34) is rotatably arranged in the bearing cylinder (33), the transmission rod (34) is connected with rotating cleaning piece (37) and passive fan (35) at the front and rear ends respectively, and the air inlet cylinder (31) is covered with bucket-shaped filter screen (36) at the outer end.

2. The air-cooled double screw air compressor of claim 1, wherein: The rotating cleaning piece (37) includes mounting ring (371), the mounting ring (371) is fixedly connected with symmetrically arranged brush plate (372) on the side surface, the brush plate (372) is attached with brush layer (373) on the inner side surface, and the brush layer (373) is closely attached with the bucket-shaped filter screen (36).

3. The air-cooled double screw air compressor of claim 2, wherein: The transmission rod (34) is provided with transmission groove (341) at the front end, the opening form and size of the mounting ring (371) are consistent with the section of the rod segment of the transmission groove (341) of the transmission rod (34).

4. The air-cooled double screw air compressor of claim 1, wherein: The rear end plate (13) includes mounting plate (131), the mounting plate (131) is fixedly provided with centrally arranged T-shaped partition plate (132), and the T-shaped partition plate (132) is attached with the end of the air compressor host (2).

5. The air-cooled double screw air compressor of claim 4, wherein: The fan cooling mechanism (4) includes longitudinal mounting bracket (41), and the longitudinal mounting bracket (41) is installed with disc type motor (42), the output shaft of the disc type motor (42) is fixedly connected with fan blade (43), and the fan blade (43) is covered with air outlet cylinder (44) fixedly connected with the mounting plate (131).

6. The air-cooled twin-screw air compressor of claim 5, wherein: The air-cooled box (1) is fixedly provided with limiting frame (45), and the plug-in filter plate (46) is inserted between the limiting frame (45) and the air outlet cylinder (44).

7. The air-cooled twin-screw air compressor of claim 6, wherein: The plug-in filter plate (46) includes plug-in plate (461), the plug-in plate (461) is provided with through hole and circular filter screen (462) fixedly arranged in the hole, and the size of the circular filter screen (462) is consistent with the opening size of the air outlet cylinder (44).

8. The air-cooled twin-screw air compressor of claim 1, wherein: The air-cooled box (1) bottom plate is provided with air compressor air outlet port (14) communicated with the air outlet of the air compressor host (2).

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