Screw tandem type double-stage double-screw compressor main machine

Abstract

The utility model relates to the technical field of air power transmission and control, and discloses a screw tandem type two-stage double-screw compressor main machine which comprises a base, a driving assembly used for rotation is installed on the top of the base, a closed box is fixedly connected to the top of the base, a pipeline is fixedly connected to the top of the closed box, and the pipeline is fixedly connected to the top of the closed box. A filter box is fixedly connected to the top of the closed box, a rotating door is rotatably connected to the exterior of the filter box, an air inlet pipe is rotatably connected to the rear side of the rotating door, a plurality of sliding rails are fixedly connected to the interior of the rotating door, a plurality of filter plates are slidably connected to the interiors of the sliding rails, and pull blocks are fixedly connected to the left sides of two spring columns. According to the utility model, through the filtration of the filter plate, the air entering the equipment is purified, the equipment is prevented from being abraded by impurities, the service life of the equipment is prolonged, the shutdown maintenance of the equipment is also avoided, and a large amount of maintenance cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerodynamic transmission and control, in particular to the main unit of a screw series double-stage twin-screw compressor. Background Art

[0002] At present, in the domestic market, screw air compressors are common industrial equipment. Its core components mainly include the main unit of a single-stage twin-screw compressor and the main unit of a screw series double-stage twin-screw compressor. The main unit of a single-stage twin-screw compressor consists of two screws, and the compression process occurs in one compression stage, which is suitable for most industrial applications where the gas pressure requirement is not particularly high. The main unit of a screw series double-stage twin-screw compressor has two compression stages. By introducing the exhaust gas of the first stage into the second stage, the pressure can be further increased, which is suitable for occasions where a higher gas pressure is required, and can provide a higher final pressure and higher efficiency, but the maintenance complexity is relatively high.

[0003] In the prior art, when some main units of screw series double-stage twin-screw compressors are in use, since the equipment needs to inhale air for compression, and the air contains impurities such as dust, after the equipment runs for a period of time, problems such as wear and jamming will occur, and the equipment needs to be shut down for maintenance, which affects the use efficiency of the equipment. Therefore, the main unit of a screw series double-stage twin-screw compressor is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides the main unit of a screw series double-stage twin-screw compressor, aiming to improve the problem in the prior art that the service life of the equipment is reduced due to dust impurities in the air and the air cannot be filtered.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The main unit of a screw series double-stage twin-screw compressor includes a base. A driving assembly for rotation is installed on the top of the base. A closed box is fixedly connected to the top of the base. A pipeline is fixedly connected to the top of the closed box. A filter box is fixedly connected to the top of the closed box. A rotating door is rotatably connected to the outside of the filter box. An air inlet pipe is rotatably connected to the rear side of the rotating door. Two fixing blocks are fixedly connected to the outside of the right side of the filter box and the air inlet pipe respectively. A first threaded rod is arranged inside every two of the fixing blocks. A plurality of sliding rails are fixedly connected to the inside of the rotating door. A plurality of filter plates are slidably connected to the inside of the plurality of sliding rails. A slider is slidably connected to the inside of two of the sliding rails. A spring column is fixedly connected to the left side of the slider. A pulling block is fixedly connected to the left side of the two spring columns;

[0007] As a further description of the above technical solution:

[0008] The driving assembly includes a stabilizing block, the bottom of the stabilizing block is fixedly connected to the top of the base, a motor is fixedly connected inside the stabilizing block, a male screw rod is rotatably connected inside the closed box, two gears are rotatably connected inside the closed box, and a female screw rod is rotatably connected inside the closed box;

[0009] As a further description of the above technical solution:

[0010] The driving end of the motor is fixedly connected to the rear side of the male screw rod, and the front side of the male screw rod is fixedly connected to the rear side of one of the gears;

[0011] As a further description of the above technical solution:

[0012] An air outlet pipe is fixedly connected to the left side of the closed box, a first fixing ring is fixedly connected to the outside of the left side of the air outlet pipe, a sealing cone is slidably connected inside the first fixing ring, a plurality of washers are arranged outside the sealing cone, two clamping blocks are fixedly connected to the outside of the washers, the two clamping blocks are slidably connected to the outside of a second fixing ring, two clamping grooves are formed inside the second fixing ring, two connecting blocks are respectively fixedly connected to the outside of the first fixing ring and the second fixing ring, a second threaded rod is arranged inside each two connecting blocks, and a rotary connecting pipe is fixedly connected to the outside of the second fixing ring;

[0013] As a further description of the above technical solution:

[0014] The front side of the female screw rod is fixedly connected to the rear side of the other gear, and the two gears are meshed with each other;

[0015] As a further description of the above technical solution:

[0016] The outside of the spring column is slidably connected inside the revolving door, and the rear side of the pipeline is fixedly connected to the front side of the revolving door;

[0017] As a further description of the above technical solution:

[0018] The air outlet pipe is clamped with the washer, and the outside of the sealing cone is slidably connected inside the second fixing ring;

[0019] As a further description of the above technical solution:

[0020] The outside of the sealing cone is slidably connected inside the air outlet pipe, and the outside of the clamping block is slidably connected inside the clamping groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, through the cooperation of the filter box and the filter plate, the air can be filtered layer by layer, so that impurities in the air will not enter the interior of the device. This not only keeps the interior of the device clean, but also protects the device from wear caused by impurities, increases the service life of the device, avoids downtime maintenance of the device, and saves a large amount of maintenance costs.

[0023] 2. In the present utility model, through the cooperation of the sealing cone and the gasket, the air outlet pipe can be effectively sealed at the interface, so that the compressed air can be transmitted to the required position through the adapter pipe. This sealing can effectively prevent gas leakage, avoid waste of compressed air, and increase the operating stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional schematic diagram of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model;

[0025] Figure 2 is a structural sectional view of the closed box of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model;

[0026] Figure 3 is a structural schematic diagram of the slider of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model;

[0027] Figure 4 is a structural schematic diagram of the pull block of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model;

[0028] Figure 5 is a structural schematic diagram of the air outlet pipe of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model;

[0029] Figure 6 is a structural schematic diagram of the sealing cone of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model;

[0030] Figure 7 is a structural schematic diagram of the second fixing ring of the main body of a screw series double-stage twin-screw compressor proposed by the present utility model.

[0031] LEGEND DESCRIPTION:

[0032] 1. Base; 2. Stabilizing block; 3. Motor; 4. Enclosure box; 5. Male screw; 6. Gear; 7. Female screw; 8. Pipe; 9. Filter box; 10. Rotating door; 11. Intake pipe; 12. Fixed block; 13. First threaded rod; 14. Slide rail; 15. Filter plate; 16. Slide block; 17. Spring column; 18. Pulling block; 19. Exhaust pipe; 20. First fixing ring; 21. Sealing cone; 22. Washer; 23. Clamping block; 24. Second fixing ring; 25. Card slot; 26. Combining block; 27. Second threaded rod; 28. Adapter pipe. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all 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.

[0034] Referring to Figure 1 and Figure 2 As shown in the figure, an embodiment provided by the present invention: a screw series double-stage twin-screw compressor main engine, including a base 1. The base 1 is a basic structure for supporting the entire device. A driving component for rotation is installed on the top of the base 1. A closed box 4 is fixedly connected to the top of the base 1, which is the main body shell of the device. The driving component includes a stabilizing block 2. The bottom of the stabilizing block 2 is fixedly connected to the top of the base 1. A motor 3 is fixedly connected inside the stabilizing block 2. Through the stabilizing block 2, the motor 3 can be installed and stabilized. A male screw 5 for primary air compression is rotatably connected inside the closed box 4.

[0035] Two gears 6 are rotatably connected inside the closed box 4. The driving end of the motor 3 is fixedly connected to the rear side of the male screw 5. The front side of the male screw 5 is fixedly connected to the rear side of one of the gears 6. A female screw 7 is rotatably connected inside the closed box 4. The front side of the female screw 7 is fixedly connected to the rear side of the other gear 6. The two gears 6 are meshed with each other. By starting the motor 3, the male screw 5 can be rotated, thereby driving one of the gears 6 to rotate clockwise, and then enabling the other gear 6 to drive the female screw 7 to rotate counterclockwise, so as to perform secondary air compression.

[0036] Referring to Figure 1 , Figure 3 and Figure 4, a pipe 8 is fixedly connected to the top of the closed box 4, and a filter box 9 is fixedly connected to the top of the closed box 4. The pipe 8 is used to connect the filter box 9 so that air can enter the inside of the closed box 4. A revolving door 10 is rotatably connected to the outside of the filter box 9. The rear side of the pipe 8 is fixedly connected to the front side of the revolving door 10. An intake pipe 11 is rotatably connected to the rear side of the revolving door 10. Through the intake pipe 11, air can enter the inside of the filter box 9. Two fixing blocks 12 are fixedly connected to the outside of both the filter box 9 and the right side of the intake pipe 11. A first threaded rod 13 is arranged inside every two fixing blocks 12. Through the cooperation of the fixing blocks 12 and the first threaded rod 13, the revolving door 10 can close the filter box 9. A plurality of slide rails 14 are fixedly connected to the inside of the revolving door 10, and a plurality of filter plates 15 are slidably connected to the inside of the plurality of slide rails 14;

[0037] Through the slide rails 14, the filter plates 15 can be orderly placed inside the filter box 9. A slider 16 is slidably connected to the inside of two of the slide rails 14. Through the slider 16, the placed plurality of filter plates 15 can be partitioned to prevent sliding. A spring column 17 is fixedly connected to the left side of the slider 16. The outside of the spring column 17 is slidably connected to the inside of the revolving door 10. The left sides of the two spring columns 17 are fixedly connected to a pulling block 18. By pulling the pulling block 18, the spring column 17 can drive the slider 16 to slide into the inside of the slide rail 14, and thus the filter plates 15 can be taken out, which is convenient for replacement.

[0038] Refer to Figure 5 , Figure 6 and Figure 7 , an air outlet pipe 19 is fixedly connected to the left side of the closed box 4 for discharging the compressed air. A first fixing ring 20 is fixedly connected to the outside of the left side of the air outlet pipe 19. A sealing cone 21 is slidably connected to the inside of the first fixing ring 20. The outside of the sealing cone 21 is slidably connected to the inside of the air outlet pipe 19. A plurality of washers 22 are arranged on the outside of the sealing cone 21. The air outlet pipe 19 is engaged with the washers 22. Through the washers 22, the air discharged from the inside of the air outlet pipe 19 can only be discharged through the inside of the sealing cone 21. Two clamping blocks 23 are fixedly connected to the outside of the washers 22. The outside of the two clamping blocks 23 is slidably connected to a second fixing ring 24. The outside of the sealing cone 21 is slidably connected to the inside of the second fixing ring 24. Two clamping grooves 25 are formed in the inside of the second fixing ring 24, and the outside of the clamping blocks 23 is slidably connected to the inside of the clamping grooves 25;

[0039] The clamping block 23 can effectively prevent the sealing cone 21 from rotating inside the air outlet pipe 19, avoiding the wear of the gasket 22. The outer parts of the first fixing ring 20 and the second fixing ring 24 are respectively fixedly connected with two coupling blocks 26. A second threaded rod 27 is arranged inside every two coupling blocks 26. Through the cooperation of the coupling blocks 26 and the second threaded rod 27, the first fixing ring 20 and the second fixing ring 24 are firmly locked together, avoiding the separation of the interface. The outer part of the second fixing ring 24 is fixedly connected with a transition pipe 28. Through the first fixing ring 20 and the second fixing ring 24, the air outlet pipe 19 and the transition pipe 28 can be connected.

[0040] Working principle: First, when the device is in use, by starting the motor 3, the male screw rod 5 is driven to rotate clockwise, so that air can be sucked into the closed box 4 for compression. At the same time, one of the gears 6 will rotate clockwise, and the other gear 6 meshing with it will rotate counterclockwise, driving the female screw rod 7 to rotate counterclockwise, so that the air is compressed for the second time and then discharged from the air outlet pipe 19.

[0041] Second, when the device compresses air, the air should be filtered to prevent impurities from entering the device. When the device is started, the air can enter the inside of the filter box 9 through the air inlet pipe 11. Through the fixation of the fixing block 12 and the first threaded rod 13, the air inlet pipe 11 can close and open the filter box 9. A plurality of slide rails 14 are arranged inside the filter box 9, enabling the filter plate 15 to slide in. When the filter plate 15 enters, the filter plate 15 will squeeze the slider 16, causing the spring column 17 to undergo elastic deformation, so that the slider 16 slides into the inside of the slide rail 14. When the filter plate 15 slides into the inside of the filter box 9, the spring column 17 releases the elastic potential energy and pushes out the slider 16, enabling the slider 16 to block the filter plate 15 and preventing the filter plate 15 from moving. When it needs to be taken out, by pulling the pull block 18, the spring column 17 drives the slider 16 to slide into the slide rail 14, enabling the filter plate 15 to be taken out for replacement. The air is filtered by the filter plate 15 and transmitted to the inside of the closed box 4 through the pipe 8 for compression.

[0042] Subsequently, after the air is compressed and needs to be transmitted to another area, through the clamping of a plurality of gaskets 22 arranged outside the sealing cone 21 with the inside of the air outlet pipe 19, the air can be effectively blocked to prevent leakage and can only be transmitted through the inside of the sealing cone 21. By sliding the sealing cone 21 into the inside of the second fixing ring 24, at the same time, the clamping block 23 also slides into the inside of the second fixing ring 24, enabling effective sealing at the interface. Then the air is transmitted to the transition pipe 28 and can be effectively transmitted to the required position. Through the cooperation of the coupling blocks 26 and the second threaded rod 27, the second fixing ring 24 and the first fixing ring 20 are firmly fixed together, further enhancing the sealing performance.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A screw series type two-stage twin-screw compressor main unit, comprising a base (1), characterized in that: A driving assembly for rotation is installed on the top of the base (1); a closed box (4) is fixedly connected to the top of the base (1); a pipe (8) is fixedly connected to the top of the closed box (4); a filter box (9) is fixedly connected to the top of the filter box (9); a revolving door (10) is rotatably connected to the outside of the filter box (9); an air inlet pipe (11) is rotatably connected to the rear side of the revolving door (10); two fixed blocks (12) are fixedly connected to the right outside of the filter box (9) and the air inlet pipe (11); a threaded rod (13) is provided inside each of the two fixed blocks (12); a plurality of slide rails (14) are fixedly connected to the inside of the revolving door (10); a plurality of filter plates (15) are slidably connected to the inside of the plurality of slide rails (14); two of the slide rails (14) are slidably connected to sliders (16); a spring column (17) is fixedly connected to the left side of the slider (16); and a pull block (18) is fixedly connected to the left side of the two spring columns (17).

2. The screw series type two-stage twin-screw compressor main unit according to claim 1, characterized in that: The driving assembly comprises a stabilizing block (2), the bottom of the stabilizing block (2) being fixedly connected to the top of the base (1), the interior of the stabilizing block (2) being fixedly connected to a motor (3), the interior of the closing box (4) being rotatably connected to a male screw (5), the interior of the closing box (4) being rotatably connected to two gears (6), and the interior of the closing box (4) being rotatably connected to a female screw (7).

3. The screw series type two-stage twin-screw compressor main unit according to claim 2 is characterized in that: The driving end of the motor (3) is fixedly connected to the rear side of the male screw (5), and the front side of the male screw (5) is fixedly connected to the rear side of one of the gears (6).

4. The screw series type two-stage twin-screw compressor main engine according to claim 1, characterized in that: The left side of the closure box (4) is fixedly connected to an air outlet pipe (19), the left side of the air outlet pipe (19) is fixedly connected to a fixing ring 1 (20), the interior of the fixing ring 1 (20) is slidably connected to a sealing cone (21), the exterior of the sealing cone (21) is provided with a plurality of washers (22), the exterior of the washers (22) is fixedly connected to two clamping blocks (23), the exteriors of the two clamping blocks (23) are slidably connected to a fixing ring 2 (24), the interior of the fixing ring 2 (24) is provided with two clamping grooves (25), the exterior of the fixing ring 1 (20) and the exterior of the fixing ring 2 (24) are respectively fixedly connected to two coupling blocks (26), the interiors of each of the two coupling blocks (26) are provided with a threaded rod 2 (27), and the exterior of the fixing ring 2 (24) is fixedly connected to a transfer tube (28).

5. The screw series type two-stage twin-screw compressor main engine according to claim 2, characterized in that: The front side of the female screw (7) is fixedly connected to the rear side of another gear (6), and the two gears (6) are meshingly connected.

6. The screw series type two-stage twin-screw compressor main engine according to claim 1, characterized in that: The outside of the spring column (17) is slidably connected to the inside of the revolving door (10), and the rear side of the pipe (8) is fixedly connected to the front side of the revolving door (10).

7. The screw series type two-stage twin-screw compressor main unit according to claim 4, characterized in that: The air outlet pipe (19) is engaged with the gasket (22), and the outside of the sealing cone (21) is slidably connected to the inside of the second fixing ring (24).

8. The screw series type two-stage twin-screw compressor main unit according to claim 4, characterized in that: The outside of the sealing cone (21) is slidably connected to the inside of the air outlet pipe (19), and the outside of the clamping block (23) is slidably connected to the inside of the clamping groove (25).

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