Efficient and energy-saving screw air compressor

Abstract

The utility model discloses an efficient energy-saving screw type air compressor, which relates to the technical field of air compressors and comprises a casing, a working cavity is arranged in the casing, a fixed extrusion roller and a movable extrusion roller are movably mounted in the working cavity, blades of the fixed extrusion roller and the movable extrusion roller are of hollow structures, a transmission mechanism is arranged at the end of the casing, and the transmission mechanism is connected with the working cavity. A mounting table is arranged at the top of the machine shell, an air inlet is formed in the mounting table, a filtering assembly is mounted at the air inlet in a matched mode, and an air inlet pipe connecting base is movably mounted at the end of the mounting table. According to the design scheme, through the design that the air inlet pipe connecting seat is movably mounted at the end part of the mounting table, when the filter screen plate needs to be replaced or cleaned, the air inlet pipe connecting seat can be opened from the mounting table by unlocking the hasp, then the filter screen mounting seat is taken out from the mounting table, and the filter screen plate in the filter screen mounting seat can be replaced or cleaned; and the dismounting and mounting speed of the filter screen plate is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air compressors, in particular to a high-efficiency and energy-saving screw air compressor. Background Art

[0002] Screw air compressors are divided into single-screw and twin-screw types. Twin-screw air compressors supply compressed air by relatively rotating a set of screws to squeeze the air in a cavity. In the prior art, the air passes through a filter to filter out dust or grit in the air before entering the air compressor to prevent particles in the air from entering the screw and adhering to the screw surface, affecting the dynamic balance stability and heat dissipation capacity of the screw and affecting the service life of the screw rotor. In the prior art, the filter of the air compressor is generally installed inside the intake pipe by welding or bolting, which results in the need to remove the intake pipe first when disassembling the filter, making it inconvenient to disassemble and clean the filter.

[0003] CN 216361059 U discloses a high-efficiency and energy-saving screw air compressor, comprising a body, the surface of the body is provided with an air inlet, a filter screen is provided on the inner side of the body, a connecting rod is fixedly connected to the surface of the filter screen, and a telescopic rod is sleeved on the surface of the connecting rod, etc. The clamping block of the air compressor can be engaged with the clamping slot under the action of the telescopic rod and the telescopic spring, so that the filter screen can be installed, and the clamping block can be fixed by plugging the plug rod into the slot, thereby fixing the filter screen, and quickly installing the filter screen, and the plug rod can be pulled to cancel the plug rod and the slot, so that the filter screen can be disassembled, disassembled and cleaned conveniently, and the filtering effect of the filter screen can be improved.

[0004] However, the filter of the above-mentioned air compressor is installed in the air inlet of the machine body. If the filter is to be removed for cleaning, the air inlet pipe still needs to be removed from the machine body. Therefore, the removal and installation process of the filter is still relatively inconvenient. In addition, the existing screw is large in size, and the motor requires a large power to drive the screw to rotate at high speed, which leads to high energy consumption of the motor. Utility Model Content

[0005] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a high-efficiency and energy-saving screw air compressor.

[0006] The utility model solves the technical problem by adopting the following technical solution: an energy-efficient screw air compressor, comprising a casing, a working chamber is arranged inside the casing, an extrusion fixed roller and an extrusion movable roller are movably mounted in the working chamber, the blades of the extrusion fixed roller and the extrusion movable roller are hollow structures, a transmission mechanism is arranged at the end of the casing, the transmission mechanism is used to drive the extrusion fixed roller and the extrusion movable roller to rotate in the working chamber, a mounting platform is arranged on the top of the casing, an air inlet is opened on the mounting platform, a filter assembly is installed at the air inlet, and an air inlet pipe connecting seat is movably mounted at the end of the mounting platform.

[0007] Furthermore, the filter assembly includes a filter mounting seat, a mounting groove matching the filter mounting seat is formed on the mounting platform, a filter screen plate is mounted on the filter mounting seat, and the position of the filter screen plate is aligned with the position of the air inlet.

[0008] Furthermore, the air intake pipe connection seat is hingedly mounted on the mounting platform via a hinge, a buckle is fixedly mounted on one end of the air intake pipe connection seat away from the hinge, and a sealing gasket is attached to the adjacent end surfaces of the air intake pipe connection seat and the mounting platform.

[0009] Furthermore, a connecting pipe is provided on the air intake pipe connecting seat, and a connecting flange is provided at the end of the connecting pipe.

[0010] Further, the transmission mechanism includes a sealing cover, which is fixedly installed on the end of the casing, and the rotating shafts of the extrusion fixed roller and the extrusion movable roller are rotatably connected to the sealing cover. A first gear is fixedly installed on the rotating shaft of the extrusion fixed roller, and a second gear is fixedly installed on the rotating shaft of the extrusion movable roller. The first gear and the second gear are meshed with each other, and an end cover is fixedly installed on the end of the sealing cover away from the casing.

[0011] Furthermore, an air outlet is provided at one end of the casing away from the sealing cover.

[0012] Furthermore, the rotating shaft of the extrusion roller extends to the outside of the end cover, a first pulley is fixedly mounted on the rotating shaft of the extrusion roller, a motor is provided on the side of the casing, a second pulley is fixedly mounted on the power output shaft of the motor, and the first pulley and the second pulley are connected to each other through a transmission belt.

[0013] The beneficial effect of the utility model is that the design scheme of the utility model is designed that an air intake pipe connecting seat is movably installed at the end of the mounting platform, and a filter mounting seat is installed on the mounting platform. The air intake pipe connecting seat is buckled and installed on the mounting platform and locked by a buckle. When the filter screen plate needs to be replaced or cleaned, the air intake pipe connecting seat can be opened from the mounting platform by unlocking the buckle. Thereafter, the filter screen mounting seat is taken out from the mounting platform, and the filter screen plate in the filter mounting seat can be replaced or cleaned, which effectively improves the disassembly and assembly speed of the filter screen plate. In addition, the blades of the extrusion fixed roller and the extrusion movable roller are of a hollow structure, which can reduce the weight of the extrusion roller, thereby reducing the energy consumption when the motor drives the extrusion roller to rotate at a high speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is a left view of the utility model;

[0018] Figure 4 It is a right view of the utility model;

[0019] Figure 5 It is a top view of the utility model;

[0020] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0021] Figure 7 It is an exploded view of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the extrusion fixed roller and the extrusion movable roller of the utility model;

[0023] Fig. 9 It is a structural schematic diagram of the casing of the utility model.

[0024] In the figure: 1. casing, 2. working chamber, 3. extrusion fixed roller, 4. extrusion movable roller, 5. mounting platform, 6. air inlet, 7. air inlet pipe connecting seat, 71. connecting pipe, 72. connecting flange, 8. filter mounting seat, 9. mounting groove, 10. filter plate, 11. buckle, 12. sealing gasket, 13. sealing cover, 14. first gear, 15. second gear, 16. end cover, 17. air outlet, 18. first pulley, 19. motor, 20. second pulley, 21. transmission belt, 22. hinge. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0026] according to Figure 1-9 As shown, a high-efficiency and energy-saving screw air compressor includes a casing 1, a working chamber 2 is provided inside the casing 1, and an extrusion fixed roller 3 and an extrusion movable roller 4 are movably installed in the working chamber 2. The blades of the extrusion fixed roller 3 and the extrusion movable roller 4 are hollow structures. A transmission mechanism is provided at the end of the casing 1, and the transmission mechanism is used to drive the extrusion fixed roller 3 and the extrusion movable roller 4 to rotate in the working chamber 2. A mounting platform 5 is provided on the top of the casing 1. The mounting platform 5 and the casing 1 are integrally cast, and an air inlet 6 is opened on the mounting platform 5. The air inlet 6 is connected with the inside of the working chamber 2, and a filter assembly is installed at the air inlet 6. An air intake pipe connecting seat 7 is movably installed at the end of the mounting platform 5, and the air intake pipe connecting seat 7 is snapped on the mounting platform 5 to fix the filter assembly.

[0027] In this embodiment, the filter assembly includes a filter mounting seat 8, and a mounting groove 9 matching the filter mounting seat 8 is opened on the mounting platform 5. The filter mounting seat 8 is installed in the mounting groove 9, and a filter screen plate 10 is plugged into the filter mounting seat 8. The position of the filter screen plate 10 is aligned with the position of the air inlet 6. When replacing or cleaning the filter screen plate 10, the filter mounting seat 8 is removed from the mounting platform 5, and then the filter screen plate 10 is pulled out from the filter mounting seat 8 to quickly replace the filter screen plate 10.

[0028] In this embodiment, the air intake pipe connecting seat 7 is hingedly installed on the mounting platform 5 by a hinge 22, and a buckle 11 is fixedly installed on the end of the air intake pipe connecting seat 7 away from the hinge, and the air intake pipe connecting seat 7 and the mounting platform 5 are locked and installed together by the buckle 11. A sealing gasket 12 is attached to the adjacent end surfaces of the air intake pipe connecting seat 7 and the mounting platform 5, and the connection between the air intake pipe connecting seat 7 and the mounting platform 5 is sealed by the sealing gasket 12, and a certain tension is provided to make the buckle 11 lock more firmly. A connecting pipe 71 is welded on the air intake pipe connecting seat 7, and a connecting flange 72 is welded on the end of the connecting pipe 71. The air intake pipe is fixedly installed on the connecting pipe 71 by bolts. The air enters the interior of the mounting seat through the connecting pipe 71, and enters the working chamber 2 through the air inlet 6 after passing through the filter screen 10.

[0029] In this embodiment, the transmission mechanism includes a sealing cover 13, which is fixedly mounted on the end of the casing 1. The sealing cover 13 is used to seal the working chamber 2. The rotating shafts of the extrusion fixed roller 3 and the extrusion movable roller 4 are rotatably connected to the sealing cover 13 through bearings. A first gear 14 is fixedly mounted on the rotating shaft of the extrusion fixed roller 3, and a second gear 15 is fixedly mounted on the rotating shaft of the extrusion movable roller 4. The first gear 14 and the second gear 15 are meshed with each other. An end cover 16 is fixedly mounted on the end of the sealing cover 13 away from the casing 1, and the first gear 14 and the second gear 15 are protected by the end cover 16. When the extrusion movable roller 4 rotates, the extrusion fixed roller 3 rotates in the opposite direction relative to the extrusion movable roller 4 under the cooperation of the first gear 14 and the second gear 15, and the air is compressed under the cooperation of the extrusion movable roller 4 and the extrusion fixed roller 3. An air outlet 17 is opened at the end of the casing 1 away from the sealing cover 13, and the air compressed by the extrusion movable roller 4 and the extrusion fixed roller 3 is discharged outward through the air outlet 17.

[0030] In this embodiment, the rotating shaft of the extrusion roller 4 extends to the outside of the end cover 16, and a first pulley 18 is fixedly installed on the rotating shaft of the extrusion roller 4. A motor 19 is provided on the side of the casing 1, and a second pulley 20 is fixedly installed on the power output shaft of the motor 19. The first pulley 18 and the second pulley 20 are connected to each other through a transmission belt 21. The casing 1 and the motor 19 are both installed on an air compressor fixing frame (not shown in the figure). The second pulley 20 is driven to rotate by the motor 19, and the transmission belt 21 transmits the power of the second pulley 20 to the first pulley 18, so that the motor 19 can drive the extrusion roller 4 to rotate.

[0031] When the utility model is in use, the filter screen mounting seat 8 is installed in the mounting groove 9 of the mounting platform 5, the filter screen plate 10 is inserted in the filter screen mounting seat 8, and the air intake pipe connecting seat 7 is snap-fitted and installed on the mounting platform 5 to fix the filter screen mounting seat 8, and is locked by the buckle 11. When the filter screen plate 10 needs to be replaced or cleaned, the buckle 11 is unlocked to open the air intake pipe connecting seat 7 from the mounting platform 5, and then the filter screen mounting seat 8 is taken out from the mounting groove 9, and the filter screen plate 10 can be replaced or cleaned, which effectively improves the disassembly and assembly speed of the filter screen plate 10, and the blades of the extrusion fixed roller 3 and the extrusion movable roller 4 are of a hollow structure, so that the weight of the extrusion roller can be reduced, thereby reducing the energy consumption when the motor drives the extrusion roller to rotate at a high speed.

[0032] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A high-efficiency and energy-saving screw air compressor, comprising a casing (1), characterized in that: The casing (1) is provided with a working chamber (2) inside, and a fixed extrusion roller (3) and a movable extrusion roller (4) are movably mounted in the working chamber (2), and the blades of the fixed extrusion roller (3) and the movable extrusion roller (4) are hollow structures. A transmission mechanism is provided at the end of the casing (1), and the transmission mechanism is used to drive the fixed extrusion roller (3) and the movable extrusion roller (4) to rotate in the working chamber (2). A mounting platform (5) is provided at the top of the casing (1), and an air inlet (6) is opened on the mounting platform (5). A filter assembly is mounted at the air inlet (6), and an air inlet pipe connecting seat (7) is movably mounted at the end of the mounting platform (5).

2. The high-efficiency and energy-saving screw air compressor according to claim 1, characterized in that: The filter assembly comprises a filter mounting seat (8), a mounting groove (9) matching the filter mounting seat (8) is provided on the mounting platform (5), a filter screen plate (10) is mounted on the filter mounting seat (8), and the position of the filter screen plate (10) is aligned with the position of the air inlet (6).

3. The high-efficiency and energy-saving screw air compressor according to claim 2, characterized in that: The air intake pipe connection seat (7) is hingedly mounted on the mounting platform (5) via a hinge (22); a buckle (11) is fixedly mounted on one end of the air intake pipe connection seat (7) away from the hinge; and a sealing gasket (12) is attached to the adjacent end surfaces of the air intake pipe connection seat (7) and the mounting platform (5).

4. The high-efficiency and energy-saving screw air compressor according to claim 3, characterized in that: The air intake pipe connection seat (7) is provided with a connection pipe (71), and the end of the connection pipe (71) is provided with a connection flange (72).

5. The high-efficiency and energy-saving screw air compressor according to claim 1, characterized in that: The transmission mechanism comprises a sealing cover (13), wherein the sealing cover (13) is fixedly mounted on the end of the housing (1), the rotating shafts of the fixed extrusion roller (3) and the movable extrusion roller (4) are rotatably connected to the sealing cover (13), a first gear (14) is fixedly mounted on the rotating shaft of the fixed extrusion roller (3), a second gear (15) is fixedly mounted on the rotating shaft of the movable extrusion roller (4), the first gear (14) and the second gear (15) are meshed with each other, and an end cover (16) is fixedly mounted on the end of the sealing cover (13) away from the housing (1).

6. The high-efficiency and energy-saving screw air compressor according to claim 5, characterized in that: An air outlet (17) is provided at one end of the casing (1) away from the sealing cover (13).

7. The high-efficiency and energy-saving screw air compressor according to claim 5, characterized in that: The rotating shaft of the extrusion roller (4) extends to the outside of the end cover (16), and a first pulley (18) is fixedly mounted on the rotating shaft of the extrusion roller (4). A motor (19) is provided on the side of the housing (1), and a second pulley (20) is fixedly mounted on the power output shaft of the motor (19). The first pulley (18) and the second pulley (20) are connected to each other via a transmission belt (21).

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