Double-screw air compressor

Abstract

The utility model relates to the technical field of air compressors, and discloses a double-screw air compressor which comprises a linkage seat, the surface of the linkage seat is fixedly connected with a compressor shell through an opening, a lubricating rotating groove is formed in the linkage seat, and the front side of the bottom of the compressor shell is fixedly connected with an air outlet bottom pipe through an opening. According to the double-screw air compressor, the sealing cylinder is installed on the rear portion of the linkage base, the heat conduction pipes are installed on the inner side of the air inlet pipe, and the sealing cylinder and the heat conduction pipes are used in cooperation with the auger blades, so that the auger blades can be driven by the rotating rotating rod to rotate; and oil liquid in the lubricating rotating groove is continuously extruded into the sealing cylinder, so that the oil liquid flows in the heat conduction pipe, is cooled by entering cold air and then returns to the interior of the lubricating rotating groove through the return pipe again, the lubricating function of lubricating oil is effectively guaranteed, the screw is prevented from being abraded, and the service life of equipment is prolonged.

Description

Technical Field

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

[0002] Screw compressors, also known as screw compressors, are divided into single-screw compressors and twin-screw compressors. Twin-screw air compressors are a type of equipment that uses two rotors to compress air, and they are quieter and more efficient.

[0003] When an existing twin-screw air compressor is in operation, the two screws inside it mesh with each other and rotate synchronously towards each other. Although this can provide more efficient compression efficiency, it still has obvious defects in actual use. For example, the screw is the most important structure in a twin-screw air compressor. However, a large amount of lubricating oil is required to lubricate the screw to ensure smooth rotation. However, the lubricating oil inside the compressor will cause the temperature to rise after a long period of friction, and the lubricating effect will be lost, causing wear on the internal screw.

[0004] Therefore, a twin-screw air compressor capable of reducing wear is now designed to solve such defects. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a twin-screw air compressor, which solves the problem that the lubricating oil inside the prior air compressor easily loses its lubricating effect when heated.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a twin-screw air compressor, including a linkage seat, the surface of the linkage seat is fixedly connected to the compressor shell by an opening, a lubrication groove is provided inside the linkage seat, the front side of the bottom of the compressor shell is fixedly connected to the air outlet bottom pipe by an opening, the top of the linkage seat is fixedly connected to the air intake pipe connected to the compressor shell by an opening, both sides of the rear part of the compressor shell inner cavity are rotatably connected to the bearing seat by the opening, the inner side of the bearing seat is fixedly connected to a rotating rod, the front end of the rotating rod is rotatably connected to the front side of the compressor shell inner cavity through a bearing member, and the surfaces of the two rotating rods and located on the inner side of the compressor shell are fixedly connected with mutually meshing screw bodies.

[0007] Preferably, the rear end of the rotating rod passes through the lubrication groove and extends to the rear of the linkage seat. The left side of the rear of the linkage seat is fixedly connected to a motor through a bracket, and the output shaft of the motor is fixedly connected to the rear end of the left rotating rod through a coupling.

[0008] Preferably, the surface of the air inlet pipe is fixedly connected with heat conducting pipes through openings, and the heat conducting pipes are provided with a plurality of front ends and rear ends fixedly connected with the shunt frame.

[0009] Preferably, the right side of the rear part of the linkage seat is fixedly connected with a sealing cylinder through openings, the right side of the rotating rod is located in the inside of the sealing cylinder, and the surface of the right side of the rotating rod and the inside of the sealing cylinder are fixedly connected with the auger blade.

[0010] Preferably, one side of the sealing cylinder is fixedly connected with a liquid inlet pipe through openings, and the other end of the liquid inlet pipe is communicated with the rear shunt frame; the rear part of the front shunt frame is fixedly connected with a reflux pipe through openings, and the other end of the reflux pipe penetrates the linkage seat and extends to the inside of the lubricating rotating groove.

[0011] The utility model provides a kind of double screw air compressor.Compared with prior art, the following beneficial effects are achieved:

[0012] (1), the double screw air compressor, by installing sealing cylinder in the rear part of linkage seat, and installing a plurality of heat conducting pipes in the inside of air inlet pipe, use in conjunction with auger blade, the setting of these structures can utilize the rotating rotating rod to drive auger blade rotation, so that the oil liquid in the inside of lubricating rotating groove is continuously extruded to the inside of sealing cylinder, so that oil liquid flows in the inside of heat conducting pipe, is cooled by the incoming cold wind, then re-enters the inside of lubricating rotating groove through reflux pipe, effectively guarantee the lubrication function of lubricating oil, avoid screw wear, prolong the service life of equipment.

[0013] (2), the double screw air compressor, by respectively using liquid inlet pipe and reflux pipe to connect between shunt frame and lubricating rotating groove and sealing cylinder, and liquid inlet pipe and reflux pipe can be installed and disassembled by screw thread, so that it can be more convenient when cleaning inside lubricating rotating groove and replacing lubricating oil subsequently, while also facilitating the maintenance of shunt frame and heat conducting pipe, meet current use. ACCURACY

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2 It is a sectional view of linkage seat and compressor shell structure of the utility model.

[0016] Figure 3 It is a schematic view of sealing cylinder, auger blade and liquid inlet pipe structure of the utility model.

[0017] Figure 4 It is a schematic view of reflux pipe, heat conducting pipe and shunt frame structure of the utility model.

[0018] In the figure: 1, linkage seat; 2, compressor shell; 3, gas outlet bottom pipe; 4, lubricating rotating groove; 5, gas inlet pipe; 6, return pipe; 7, bearing seat; 8, rotating rod; 9, screw body; 10, motor; 11, heat conducting pipe; 12, shunt frame; 13, sealing cylinder; 14, auger blade; 15, liquid inlet pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a kind of double screw air compressor, linkage seat 1 is connected with compressor shell 2 by being fixedly connected with opening on the surface of linkage seat 1, lubricating rotating groove 4 is opened in the inside of linkage seat 1, the front side of the bottom of compressor shell 2 is fixedly connected with gas outlet bottom pipe 3 by being fixedly connected with opening on, the top of linkage seat 1 is fixedly connected with gas inlet pipe 5 being communicated with compressor shell 2 by being fixedly connected with opening on, the rear portion of the inner chamber of compressor shell 2 is rotatably connected with bearing seat 7 by being rotatably connected with opening on both sides, the inside of bearing seat 7 is fixedly connected with rotating rod 8, the front end of rotating rod 8 is rotatably connected to the front side of the inner chamber of compressor shell 2 by bearing piece, the surface of two rotating rods 8 and located at the inside of compressor shell 2 are all fixedly connected with mutually meshing screw body 9, the rear end of rotating rod 8 extends to the rear portion of linkage seat 1 and passes through lubricating rotating groove 4, the left side of the rear portion of linkage seat 1 is fixedly connected with motor 10 by support, and the output shaft of motor 10 is fixedly connected with the rear end of left rotating rod 8 by coupling.

[0021] Before use, gas inlet pipe 5 and gas outlet bottom pipe 3 are connected with external gas conveying pipe respectively, and lubricating oil is injected in the inside of lubricating rotating groove 4, then motor 10 is started, and motor 10 is servo motor, since two screw bodies 9 are mutually meshing, so after motor 10 is started, two screw bodies 9 will rotate towards each other, while two rotating rods 8 also rotate synchronously, and bearing seat 7 ensures that rotating rod 8 rotates smoothly under the action of lubricating oil, while cold gas enters from gas inlet pipe 5 and is compressed into hot gas by screw body 9, and then hot gas is discharged from gas outlet bottom pipe 3.

[0022] Further, the surface of the air inlet pipe 5 is fixedly connected with heat pipes 11 through openings. The heat pipes 11 are made of aluminum alloy and have good heat conductivity. The heat pipes 11 are provided with a plurality of front ends and rear ends, and the front ends and the rear ends are fixedly connected with shunt frames 12. The right side of the rear part of the linkage seat 1 is fixedly connected with a sealing cylinder 13 through openings. The right rotating rod 8 is located inside the sealing cylinder 13. The surface of the right rotating rod 8 and the inside of the sealing cylinder 13 are fixedly connected with auger blades 14. The auger blades 14 are in contact with the inner wall of the sealing cylinder 13. One side of the sealing cylinder 13 is fixedly connected with a liquid inlet pipe 15 through openings. The liquid inlet pipe 15 is a hose and is connected through threads. The other end of the liquid inlet pipe 15 is communicated with the rear shunt frame 12. The rear part of the front shunt frame 12 is fixedly connected with a return pipe 6 through openings. The return pipe 6 is a hose and is connected through threads. The other end of the return pipe 6 penetrates through the linkage seat 1 and extends to the inside of the lubricating rotating groove 4.

[0023] When the right rotating rod 8 rotates, the auger blades 14 continuously transport and extrude the lubricating oil in the lubricating rotating groove 4 to the inside of the sealing cylinder 13. The oil in the sealing cylinder 13 is extruded and enters the heat pipes 11 through the liquid inlet pipe 15. The oil passing through the heat pipes 11 is cooled when the cold air passes. Then, the cooled lubricating oil is re-injected into the lubricating rotating groove 4 through the return pipe 6 for use.

Claims

1. A twin screw air compressor comprising a linkage seat (1), characterized in that: The surface of the linkage seat (1) is fixedly connected with a compressor shell (2) through opening, the inside of the linkage seat (1) is provided with a lubricating rotating groove (4), the front side of the bottom of the compressor shell (2) is fixedly connected with an air outlet bottom pipe (3) through opening, the top of the linkage seat (1) is fixedly connected with an air inlet pipe (5) communicated with the compressor shell (2) through opening, the both sides of the rear part of the inner cavity of the compressor shell (2) are rotatably connected with bearing seats (7) through opening, the inner side of the bearing seat (7) is fixedly connected with rotating rods (8), the front end of the rotating rod (8) is rotatably connected to the front side of the inner cavity of the compressor shell (2) through bearing, the surface of the rotating rod (8) and the inner side of the compressor shell (2) are fixedly connected with screw bodies (9) meshing with each other.

2. A twin screw air compressor as claimed in claim 1, wherein: The rear end of the rotating rod (8) penetrates the lubricating rotating groove (4) and extends to the rear part of the linkage seat (1), the left side of the rear part of the linkage seat (1) is fixedly connected with a motor (10) through a support, and the output shaft of the motor (10) is fixedly connected with the rear end of the left rotating rod (8) through a shaft coupling.

3. A twin screw air compressor as claimed in claim 1, wherein: The surface of the air inlet pipe (5) is fixedly connected with heat pipes (11) through opening, and the heat pipes (11) are provided with a plurality of heat pipes (11), the front end and the rear end of the plurality of heat pipes (11) are fixedly connected with shunt frames (12).

4. A twin screw air compressor as claimed in claim 2, wherein: The right side of the rear part of the linkage seat (1) is fixedly connected with a sealing cylinder (13) through opening, the right rotating rod (8) is located in the inner side of the sealing cylinder (13), and the surface of the right rotating rod (8) and the inner side of the sealing cylinder (13) are fixedly connected with auger blades (14).

5. A twin screw air compressor as claimed in claim 4, wherein: One side of the sealing cylinder (13) is fixedly connected with a liquid inlet pipe (15) through opening, the other end of the liquid inlet pipe (15) is communicated with the rear shunt frame (12), the rear part of the front shunt frame (12) is fixedly connected with a reflux pipe (6) through opening, and the other end of the reflux pipe (6) penetrates the linkage seat (1) and extends to the inner side of the lubricating rotating groove (4).

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