Permanent magnet double-screw air compressor

Abstract

The utility model discloses a permanent magnet twin-screw air compressor, which relates to the technical field of air compressors and comprises a movable chassis frame, a permanent magnet motor is fixedly mounted at the top end of one side of the movable chassis frame, and a twin-screw two-stage compressor is fixedly connected to one side of the permanent magnet motor. And the top end of one side of the double-screw two-stage compressor communicates with an air inlet pipe disc, the top end of one side of the double-screw two-stage compressor communicates with an air outlet pipe disc, and the edge of the top end of one side of the movable chassis frame is rotationally connected with a first connecting rotating shaft. A bolt connector on a first sealing protective cover is directly buckled into a bolt connecting groove, sealing buckling of the first sealing protective cover and a second sealing protective cover is completed, the protection effect on the device is achieved, the problem that the device is polluted due to the fact that the double-screw two-stage compressor is placed in the external environment is avoided, and the service life of the double-screw two-stage compressor is prolonged. And the use cleanliness of the double-screw two-stage compressor is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a permanent magnet twin-screw air compressor. Background Art

[0002] Screw air compressor is a commonly used air compressor, which is divided into single-stage compressor and two-stage compressor. Compared with single-stage compressor, twin-screw two-stage compression air compressor tends to be the most power-saving isothermal compression. Two-stage compression saves 5%-8% energy than single-stage compression. Twin-screw two-stage compression air compressor has low noise, low vibration and high reliability. Two-stage compression reduces the compression ratio of each stage, reduces internal leakage, improves volumetric efficiency, reduces bearing load and increases the life of the main engine.

[0003] After searching, Chinese patent number CN218207089U discloses a permanent magnet twin-screw two-stage compressed air compressor, including a bottom plate, the outer side of the permanent magnet motor is fixedly connected with a base, the top of the bottom plate is rotatably connected with a threaded rod, the outer surface of the threaded rod is threadedly connected with a movable block, the top of the movable block is rotatably connected with a push rod, the bottom end of the base is fixedly connected with a telescopic rod, and the bottom end of the telescopic rod is fixedly connected to the top of the bottom plate. In the utility model, by rotating the threaded rod, the movable block moves along the threaded rod, thereby changing the inclination angle of the push rod, the length of the push rod remains unchanged, and the height of the base changes with the change of the inclination angle of the push rod, thereby changing the height of the base and the permanent magnet motor, so that the height of the output shaft of the permanent magnet motor is flush with the height of the input shaft of the twin-screw two-stage compressor, avoiding the accelerated wear caused by the different heights of the output shaft and the input shaft, and effectively extending the service life of the equipment.

[0004] However, in actual use, the above device will be placed in the external environment during use, and the erosion of a large amount of rainwater will directly affect the service life of the device. At the same time, the device will generate a lot of noise, pollute the working environment and endanger the health of the staff. Utility Model Content

[0005] The utility model aims to provide a permanent magnet twin-screw air compressor.

[0006] To solve the above technical problems, the utility model provides the following technical solutions: a permanent magnet twin-screw air compressor, comprising a mobile chassis frame, a permanent magnet motor is fixedly installed on the top of one side of the mobile chassis frame, a twin-screw two-stage compressor is fixedly connected to one side of the permanent magnet motor, an air inlet pipe disc is connected to the top of one side of the twin-screw two-stage compressor, an air outlet pipe disc is connected to the top of one side of the twin-screw two-stage compressor, a first connecting shaft is rotatably connected to the top edge of one side of the mobile chassis frame, a first sealing protective cover is fixedly connected to the top of one side of the first connecting rotating shaft, a cover body auxiliary handle is fixedly installed on the top surface of one side of the first sealing protective cover, sound insulation protective cotton is fixedly installed on the inner wall surface of the first sealing protective cover, and a pin connector is fixedly installed on the top surface of one side of the first sealing protective cover.

[0007] Preferably, a top edge of one side of the mobile chassis frame is rotatably connected to a second connecting shaft, a second sealing protective cover is fixedly connected to one side of the second connecting shaft, and a latch connecting groove is provided on an edge surface of one side of the second sealing protective cover.

[0008] Preferably, all inner walls of the first sealing protective cover are fixedly installed with sound insulation protective cotton, the second sealing protective cover has the same internal structure as the first sealing protective cover, and all inner walls of the second sealing protective cover are fixedly installed with sound insulation protective cotton.

[0009] Preferably, the positions of the latch connector and the latch connector groove correspond one to one, the connection relationship between the latch connector and the latch connector groove is a movable snap connection, and a cover body auxiliary handle is fixedly mounted on the top surface of the second sealing protective cover.

[0010] Preferably, a top buckle connecting groove is formed on the top surface of one side of the first sealing protective cover and the second sealing protective cover, and a side wall buckle connecting groove is formed on the outer wall surface of one side of the first sealing protective cover and the second sealing protective cover.

[0011] Preferably, the connection between the top snap-on connecting groove and the air inlet pipe disc is a movable snap-on connection, and the air inlet pipe disc extends through the interior of the top snap-on connecting groove; the connection between the side wall snap-on connecting groove and the air outlet pipe disc is a movable snap-on connection, and the air outlet pipe disc extends through the interior of the side wall snap-on connecting groove.

[0012] Preferably, an outer wall on one side of the first sealing protective cover is fixedly connected with a pushing connecting rod, a pushing handrail is fixedly installed on the top end of one side of the pushing connecting rod, and a universal moving wheel is rotatably connected to the bottom end of the movable chassis frame.

[0013] Preferably, the universal movable wheels are located at the four corners of the bottom end of the movable chassis frame, and a pushing connecting rod is fixedly installed on the outer wall of one side of the second sealing protective cover.

[0014] Compared with the related art, the permanent magnet twin-screw air compressor provided by the utility model has the following beneficial effects:

[0015] 1. The utility model provides a permanent magnet twin-screw air compressor. By setting a latch connector on a first sealing protective cover to directly snap into the inside of a latch connector groove, the sealing snap of the first sealing protective cover and the second sealing protective cover is completed, thereby achieving a protective effect on the device, avoiding the problem of the twin-screw two-stage compressor being placed in an external environment and polluting the device, increasing the cleanliness of the twin-screw two-stage compressor, and improving the service life. Sound insulation protective cotton is provided on the inner walls of the first sealing protective cover and the second sealing protective cover. The sound insulation protective cotton has a certain sound insulation effect, avoiding the problem of the twin-screw two-stage compressor generating too much vibration noise and harming the body of the staff, facilitating the opening and sealing effect, and improving the convenience of using the device.

[0016] 2. The utility model provides a permanent magnet twin-screw air compressor. By setting a top snap-in connecting groove for the snap-in of the edge of the air inlet pipe disk, and a side wall snap-in connecting groove for the snap-in of the edge of the air outlet pipe disk, the device can be directly connected and used without opening the first sealing protective cover and the second sealing protective cover, further increasing the convenience of using the device. The push armrest and the universal movable wheel facilitate the movement of the entire chassis frame, thereby improving the mobility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall top view structure of the device of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the sealing protective cover of the utility model after it is opened;

[0020] Figure 4 This is a schematic diagram of the sealing protective cover structure of the utility model.

[0021] Numbers in the figure: 1. Mobile chassis frame; 2. Permanent magnet motor; 3. Twin-screw two-stage compressor; 4. Inlet pipe disc; 5. Exhaust pipe disc; 6. First connecting shaft; 7. First sealing protective cover; 8. Auxiliary handle of the cover body; 9. Sound insulation protective cotton; 10. Pin connector; 11. Second connecting shaft; 12. Second sealing protective cover; 13. Pin connecting groove; 14. Top buckle connecting groove; 15. Side wall buckle connecting groove; 16. Push connecting rod; 17. Push handrail; 18. Universal movable wheel. DETAILED DESCRIPTION

[0022] Embodiment 1:

[0023] See also Figure 1-4 The utility model provides a technical solution: a permanent magnet twin-screw air compressor, comprising a mobile chassis frame 1, a permanent magnet motor 2 is fixedly installed on the top of one side of the mobile chassis frame 1, a twin-screw two-stage compressor 3 is fixedly connected to one side of the permanent magnet motor 2, an air inlet pipe disc 4 is connected to the top of one side of the twin-screw two-stage compressor 3, an air outlet pipe disc 5 is connected to the top of one side of the twin-screw two-stage compressor 3, a first connecting shaft 6 is rotatably connected to the top edge of one side of the mobile chassis frame 1, a first sealing protective cover 7 is fixedly connected to the top of one side of the first connecting rotating shaft 6, a cover body auxiliary handle 8 is fixedly installed on the top surface of one side of the first sealing protective cover 7, a sound insulation protective cotton 9 is fixedly installed on the inner wall surface of the first sealing protective cover 7, and a sound insulation protective cotton 9 is fixedly installed on the top surface of one side of the first sealing protective cover 7 A latch connector 10 is fixedly installed, and a second connecting shaft 11 is rotatably connected to the top edge of one side of the mobile chassis frame 1, a second sealing protective cover 12 is fixedly connected to one side of the second connecting shaft 11, and a latch connecting groove 13 is provided on the edge surface of one side of the second sealing protective cover 12, all inner walls of the first sealing protective cover 7 are fixedly installed with sound insulation protective cotton 9, the second sealing protective cover 12 has the same internal structure as the first sealing protective cover 7, and all inner walls of the second sealing protective cover 12 are fixedly installed with sound insulation protective cotton 9, the positions of the latch connector 10 and the latch connecting groove 13 correspond one to one, and the connection relationship between the latch connector 10 and the latch connecting groove 13 is an active snap-in connection, and a cover body auxiliary handle 8 is fixedly installed on the top surface of the second sealing protective cover 12.

[0024] In the implementation scheme, the first sealing protective cover 7 and the second sealing protective cover 12 are sealed and snapped together by setting the pin connector 10 on the first sealing protective cover 7 to be directly snapped into the inside of the pin connecting groove 13, thereby achieving a protective effect on the device, avoiding the problem of the twin-screw two-stage compressor 3 being placed in the external environment and polluting the device, increasing the cleanliness of the twin-screw two-stage compressor 3 and improving its service life. Soundproof protective cotton 9 is provided on the inner walls of the first sealing protective cover 7 and the second sealing protective cover 12. The soundproof protective cotton 9 has a certain sound insulation effect, avoiding the problem of the twin-screw two-stage compressor 3 generating too much vibration noise and harming the body of the staff, facilitating the opening and sealing effect, and improving the convenience of using the device.

[0025] Embodiment 2:

[0026] See also Figure 1-4The utility model provides a technical solution: a permanent magnet twin-screw air compressor, comprising a first sealing protective cover 7 and a second sealing protective cover 12, a top buckle connecting groove 14 is opened on the top surface of one side, a side wall buckle connecting groove 15 is opened on the outer wall surface of one side of the first sealing protective cover 7 and the second sealing protective cover 12, the connection relationship between the top buckle connecting groove 14 and the air inlet pipe disc 4 is a movable snap connection, the air inlet pipe disc 4 extends through the inside of the top buckle connecting groove 14, the connection relationship between the side wall buckle connecting groove 15 and the air outlet pipe disc 5 is a movable snap connection, the air outlet pipe disc 5 extends through the inside of the side wall buckle connecting groove 15, the outer wall of one side of the first sealing protective cover 7 is fixedly connected with a pushing connecting rod 16, and a pushing handrail 17 is fixedly installed on the top of one side of the pushing connecting rod 16, the bottom end of the mobile chassis frame 1 is rotatably connected with a universal moving wheel 18, the universal moving wheel 18 is located at the four corners of the bottom end of the mobile chassis frame 1, and the outer wall of one side of the second sealing protective cover 12 is fixedly installed with a pushing connecting rod 16.

[0027] In the implementation scheme, by setting the top snap-in connecting groove 14 for the snap-in of the edge of the air inlet pipe disc 4, and the side wall snap-in connecting groove 15 for the snap-in of the edge of the air outlet pipe disc 5, the device can be connected and used directly without opening the first sealing protective cover 7 and the second sealing protective cover 12, thereby further increasing the convenience of using the device. The pushing handrail 17 and the universal movable wheel 18 facilitate the overall position movement of the movable chassis frame 1, thereby improving the mobility of the device.

[0028] Working principle:

[0029] By setting the latch connector 10 on the first sealing protective cover 7 to be directly buckled into the inside of the latch connecting groove 13, the sealing buckle of the first sealing protective cover 7 and the second sealing protective cover 12 is completed, the protection effect of the device is achieved, the twin-screw two-stage compressor 3 is prevented from being placed in the external environment and polluting the device, the use cleanliness of the twin-screw two-stage compressor 3 is increased, and the service life is improved. Sound insulation protective cotton 9 is provided on the inner walls of the first sealing protective cover 7 and the second sealing protective cover 12. The sound insulation protective cotton 9 has a certain sound insulation effect, which prevents the twin-screw two-stage compressor 3 from generating too much vibration noise and harming the body of the staff, facilitates the opening and sealing effect, and improves the convenience of using the device;

[0030] By setting the top buckle connecting groove 14 to buckle the edge of the air inlet pipe plate 4, and the side wall buckle connecting groove 15 to buckle the edge of the air outlet pipe plate 5, the device can be connected and used directly without opening the first sealing protective cover 7 and the second sealing protective cover 12, further increasing the convenience of using the device. The push handle 17 and the universal moving wheel 18 facilitate the movement of the entire chassis frame 1, thereby improving the convenience of moving the device;

[0031] A plurality of cover auxiliary handles 8 are provided on the top surfaces of the first sealing protective cover 7 and the second sealing protective cover 12 to facilitate opening and closing of the first sealing protective cover 7 and the second sealing protective cover 12 .

Claims

1. A permanent magnet twin-screw air compressor, comprising a mobile chassis frame (1), a permanent magnet motor (2) being fixedly mounted on the top end of one side of the mobile chassis frame (1), characterized in that: A twin-screw two-stage compressor (3) is fixedly connected to one side of the permanent magnet motor (2); an air inlet pipe disc (4) is connected to the top of one side of the twin-screw two-stage compressor (3); an air outlet pipe disc (5) is connected to the top of one side of the twin-screw two-stage compressor (3); a first connecting shaft (6) is rotatably connected to the top edge of one side of the movable chassis frame (1); a first sealing protective cover (7) is fixedly connected to the top of one side of the first connecting rotating shaft (6); a cover body auxiliary handle (8) is fixedly mounted on the top surface of one side of the first sealing protective cover (7); a sound insulation protective cotton (9) is fixedly mounted on the inner wall surface of the first sealing protective cover (7); and a plug connector (10) is fixedly mounted on the top surface of one side of the first sealing protective cover (7).

2. A permanent magnet twin-screw air compressor according to claim 1, characterized in that: A second connecting shaft (11) is rotatably connected to a top edge of one side of the mobile chassis frame (1), a second sealing protective cover (12) is fixedly connected to one side of the second connecting shaft (11), and a latch connection groove (13) is provided on an edge surface of one side of the second sealing protective cover (12).

3. A permanent magnet twin-screw air compressor according to claim 2, characterized in that: All inner walls of the first sealing protective cover (7) are fixedly mounted with sound insulation protective cotton (9); the second sealing protective cover (12) has the same internal structure as the first sealing protective cover (7); and all inner walls of the second sealing protective cover (12) are fixedly mounted with sound insulation protective cotton (9).

4. A permanent magnet twin-screw air compressor according to claim 2, characterized in that: The positions of the latch connection head (10) and the latch connection groove (13) correspond one to one, the connection relationship between the latch connection head (10) and the latch connection groove (13) is a movable snap connection, and a cover body auxiliary handle (8) is fixedly mounted on the top surface of the second sealing protective cover (12).

5. A permanent magnet twin-screw air compressor according to claim 2, characterized in that: A top buckle connecting groove (14) is provided on the top surface of one side of the first sealing protective cover (7) and the second sealing protective cover (12), and a side buckle connecting groove (15) is provided on the outer wall surface of one side of the first sealing protective cover (7) and the second sealing protective cover (12).

6. A permanent magnet twin-screw air compressor according to claim 5, characterized in that: The connection relationship between the top buckle connecting groove (14) and the air inlet pipe disc (4) is a movable buckle connection, and the air inlet pipe disc (4) extends through the interior of the top buckle connecting groove (14). The connection relationship between the side wall buckle connecting groove (15) and the air outlet pipe disc (5) is a movable buckle connection, and the air outlet pipe disc (5) extends through the interior of the side wall buckle connecting groove (15).

7. A permanent magnet twin-screw air compressor according to claim 2, characterized in that: The outer wall of one side of the first sealing protective cover (7) is fixedly connected to a pushing connecting rod (16), the top end of one side of the pushing connecting rod (16) is fixedly mounted with a pushing handrail (17), and the bottom end of the movable chassis frame (1) is rotatably connected to a universal movable wheel (18).

8. A permanent magnet twin-screw air compressor according to claim 7, characterized in that: The universal movable wheels (18) are located at the four corners of the bottom end of the movable chassis frame (1), and a pushing connecting rod (16) is fixedly mounted on an outer wall of one side of the second sealing protective cover (12).

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