A main machine of a screw air compressor

Abstract

The utility model relates to a kind of host computers of screw air compressor, belong to screw air compressor technical field.The host computer of screw air compressor, include: host shell, the surface of the host shell is fixedly connected with intake pipe, the surface of the intake pipe is threadedly connected with air filter;Encryption mechanism, the encryption mechanism includes the first rubber ring fixedly connected to the surface of intake pipe, the surface of the air filter is fixedly connected with second rubber ring;Through the first rubber ring and second rubber ring mutual cooperation, preliminary sealing to the intake pipe and air filter junction is realized, through first sealing frame and second sealing frame, the first rubber ring and second rubber ring junction are sealed, and then the intake pipe and air filter junction are doubly sealed, avoid the air leakage situation of the intake pipe and air filter junction, to ensure the host computer intake capacity of screw air compressor.

Description

Technical Field

[0001] This utility model relates to the field of screw air compressor technology, and in particular to a main unit of a screw air compressor. Background Technology

[0002] A screw air compressor is a common type of air compression equipment. The main unit of a screw air compressor consists of a pair of parallel, meshing male and female rotors. Driven by a motor, the air is compressed and discharged in stages through changes in the volume of the tooth grooves between the rotors. The main working process can be divided into three stages: intake, compression, and exhaust.

[0003] Existing screw air compressors typically have an air filter threaded onto the intake pipe of the main unit and a sealing ring at the connection. However, the vibration generated by the main unit of the screw air compressor during operation can easily reach the connection between the intake pipe and the air filter, which can lead to loosening of the connection and air leakage, thus affecting the intake volume of the screw air compressor. Utility Model Content

[0004] Therefore, it is necessary to provide a screw air compressor main unit to address the problem that the vibration force generated by the main unit of the screw air compressor during operation can easily reach the connection between the air intake pipe and the air filter, which can easily lead to loosening of the connection between the air filter and the air intake pipe.

[0005] The device includes: a main housing, on the surface of which an air intake pipe is fixedly connected, and an air filter is threadedly connected to the surface of the air intake pipe; and a encryption mechanism, which includes a first rubber ring fixedly connected to the surface of the air intake pipe, a second rubber ring fixedly connected to the surface of the air filter, the surface of the second rubber ring being engaged with the inner wall of the first rubber ring, a first sealing frame and a second sealing frame slidably connected to the surface of the first rubber ring, and the surface of the second sealing frame being engaged with the inner wall of the first sealing frame.

[0006] In one embodiment, the encryption mechanism further includes a positioning frame and an anti-displacement block slidably connected to the inner wall of the second sealing frame, the surface of the positioning frame being engaged with the inner wall of the first sealing frame, and the end of the anti-displacement block abutting against the end of the positioning frame.

[0007] In one embodiment, a blocking block is slidably connected to the inner wall of the second sealing frame, and one side of the blocking block contacts one side of the anti-displacement block.

[0008] In one embodiment, the inner wall of the second sealing frame is threaded with two rubber screws, the surfaces of which are engaged with the inner wall of the block.

[0009] In one embodiment, a positioning block is slidably connected to the inner wall of the rubber screw, and the surface of the positioning block is slidably connected to the inner wall of the second sealing frame. The positioning block is used to limit the rubber screw, ensuring that the rubber screw is stably located within the second sealing frame and the blocking block, thereby ensuring that the blocking block stably abuts against one side of the anti-displacement block, and thus ensuring that the second sealing frame is stably locked within the first sealing frame.

[0010] In one embodiment, a spring is fixedly connected to the end of the positioning frame.

[0011] In one embodiment, a slider is fixedly connected to one side of the second sealing frame, and the inner wall of the anti-displacement block is slidably connected to the surface of the slider. The slider limits the movement of the anti-displacement block, preventing it from shifting during movement.

[0012] In one embodiment, one end of the rubber screw is fixedly connected to a fixing rope, and the other end of the fixing rope is fixedly connected to the top of the second sealing frame.

[0013] Beneficial effects 1. The first rubber ring and the second rubber ring cooperate to achieve a preliminary seal at the connection between the air intake pipe and the air filter. The first sealing frame and the second sealing frame seal the connection between the first rubber ring and the second rubber ring, thereby achieving a double seal at the connection between the air intake pipe and the air filter, avoiding air leakage at the connection between the air intake pipe and the air filter, and thus ensuring the main air intake volume of the screw air compressor. 2. Through the cooperation of the rubber screw, the stop block, the positioning frame and the anti-shifting block, the second sealing frame is stably locked in the first sealing frame, thereby achieving a stable seal between the first sealing frame and the second sealing frame at the connection between the first rubber ring and the second rubber ring. This ensures a tight connection between the air intake pipe and the air filter, and guarantees the air intake volume of the screw air compressor. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded view of the air filter and air intake pipe of this utility model; Figure 3 Exploded views of the first and second sealing frames of this utility model; Figure 4 This is a cross-sectional view of the second sealing frame of this utility model; Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0016] Figure label: 100. Main unit housing; 200. Air intake pipe; 300. Air filter; 400. Encryption mechanism; 401. First rubber ring; 402. Second rubber ring; 403. First sealing frame; 404. Second sealing frame; 405. Positioning frame; 406. Anti-slip block; 407. Block; 408. Rubber screw; 409. Positioning block; 410. Fixing rope; 411. Slider; 412. Spring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figures 1-5 This invention describes the main unit of the screw air compressor.

[0019] In one embodiment, the main unit of a screw air compressor includes: a main unit housing 100, an air intake pipe 200 fixedly connected to the surface of the main unit housing 100, and an air filter 300 threadedly connected to the surface of the air intake pipe 200; and a sealing mechanism 400, which includes a first rubber ring 401 fixedly connected to the surface of the air intake pipe 200, a second rubber ring 402 fixedly connected to the surface of the air filter 300, the surface of the second rubber ring 402 being engaged with the inner wall of the first rubber ring 401, and a first sealing frame 403 and a second sealing frame 404 slidably connected to the surface of the first rubber ring 401, the surface of the second sealing frame 404 being engaged with the inner wall of the first sealing frame 403.

[0020] It should be noted that the main unit of a screw air compressor is usually composed of a main unit housing 100, an intake pipe 200, an air filter 300, male and female rotors, bearings, shaft seals, etc. The main unit model of the screw air compressor can be selected as AA480R55kW.

[0021] When the screw air compressor needs to compress gas, it is manually turned on. As the rotor begins to rotate, the air inlet in the inlet pipe 200 opens, and outside air is drawn in under atmospheric pressure, filtered by the air filter 300, and then delivered to the working chamber of the main housing 100. As the rotor continues to rotate, the volume of the working chamber gradually increases, and air is continuously drawn in until the working chamber disconnects from the air inlet, ending the intake process. After the working chamber disconnects from the air inlet in the inlet pipe 200, as the rotor rotates, the teeth of the male and female rotors mesh, and the volume of the working chamber gradually decreases. The air is compressed in the closed working chamber, and the pressure gradually increases. During compression, lubricating oil is sprayed into the working chamber for lubrication, cooling, and sealing. When the air pressure in the working chamber reaches the set exhaust pressure, the exhaust port opens, and the compressed air is discharged from the main housing 100 through the exhaust port, entering subsequent equipment such as the cooler and air tank for processing. As the rotor continues to rotate, the volume of the working chamber continues to decrease until the working chamber disconnects from the exhaust port, ending the exhaust process. Then, the rotor begins a new intake, compression, and exhaust cycle.

[0022] In this embodiment, the cleaned air filter 300 is threaded onto the surface of the intake pipe 200, so that the second rubber ring 402 is locked inside the first rubber ring 401. The first sealing frame 403 and the second sealing frame 404 are slid into the surfaces of the first rubber ring 401 and the second rubber ring 402, so that the second sealing frame 404 is locked inside the first sealing frame 403. The inner walls of the first sealing frame 403 and the second sealing frame 404 abut against the ends of the first rubber ring 401 and the second rubber ring 402, thereby sealing the first rubber ring 401 and the second rubber ring 402.

[0023] like Figure 4-5 As shown, the encryption mechanism 400 also includes a positioning frame 405 and an anti-displacement block 406 slidably connected to the inner wall of the second sealing frame 404. The surface of the positioning frame 405 is engaged with the inner wall of the first sealing frame 403, and the end of the anti-displacement block 406 abuts against the end of the positioning frame 405. A blocking block 407 is slidably connected to the inner wall of the second sealing frame 404, and one side of the blocking block 407 contacts one side of the anti-displacement block 406. Two rubber screws 408 are threadedly connected to the inner wall of the second sealing frame 404. The surface of the rubber screws 408 is engaged with the inner wall of the blocking block 407. A positioning block 409 is slidably connected to the inner wall of the rubber screws 408, and the surface of the positioning block 409 is slidably connected to the inner wall of the second sealing frame 404. A spring 412 is fixedly connected to the end of the positioning frame 405.

[0024] In this embodiment, the pressure on the two positioning frames 405 is loosened, and the elastic force of the spring 412 pushes the two positioning frames 405 away from each other and locks them inside the first sealing frame 403. This pushes the anti-displacement block 406 to move laterally on the surface of the slider 411, causing the anti-displacement block 406 to slide into the second sealing frame 404, so that the end of the anti-displacement block 406 abuts against the end of the positioning frame 405. This pushes the blocking block 407 to move downward inside the second sealing frame 404 and abut against one side of the anti-displacement block 406. Finally, the rubber screw 4... 08 slides into the second sealing frame 404, causing the rubber screw 408 to slide into the stop block 407 and rotate, so that the rubber screw 408 is threadedly installed in the second sealing frame 404, pushing the positioning block 409 to move laterally in the rubber screw 408 and slide into the second sealing frame 404, thereby locking the rubber screw 408, so that the second sealing frame 404 is stably stuck in the first sealing frame 403, thereby tightening and sealing the connection between the air intake pipe 200 and the air filter 300.

[0025] like Figure 4-5 As shown, a slider 411 is fixedly connected to one side of the second sealing frame 404, the inner wall of the anti-slip block 406 is slidably connected to the surface of the slider 411, one end of the rubber screw 408 is fixedly connected to a fixing rope 410, and the other end of the fixing rope 410 is fixedly connected to the top of the second sealing frame 404.

[0026] Working principle: After cleaning, the air filter 300 is threaded onto the surface of the intake pipe 200, causing the second rubber ring 402 to be engaged within the first rubber ring 401. The first sealing frame 403 and the second sealing frame 404 slide into the surfaces of the first rubber ring 401 and the second rubber ring 402, respectively, causing the second sealing frame 404 to be engaged within the first sealing frame 403. This loosens the pressure on the two positioning brackets 405, and the elastic force of the spring 412 pushes the two positioning brackets 405 away from each other and engaged within the first sealing frame 403, thus pushing the anti-displacement block. 406 moves laterally on the surface of slider 411 and slides into the second sealing frame 404, so that the end of the anti-displacement block 406 abuts against the end of the positioning frame 405, pushing the stop block 407 to move down in the second sealing frame 404 and abut against one side of the anti-displacement block 406, and sliding the rubber screw 408 into and threadedly installing it in the second sealing frame 404, so that the rubber screw 408 slides into the stop block 407, pushing the positioning block 409 to move laterally in the rubber screw 408 and slide into the second sealing frame 404, thereby locking the rubber screw 408.

[0027] It should be noted that the main housing 100, air intake pipe 200, air filter 300, first sealing frame 403, second sealing frame 404 and spring 412 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A main unit of a screw air compressor, characterized in that, include: A main unit housing (100) is provided with an air intake pipe (200) fixedly connected to its surface, and an air filter (300) is threadedly connected to the surface of the air intake pipe (200). The encryption mechanism (400) includes a first rubber ring (401) fixedly connected to the surface of the air intake pipe (200), a second rubber ring (402) fixedly connected to the surface of the air filter (300), the surface of the second rubber ring (402) being snapped into the inner wall of the first rubber ring (401), a first sealing frame (403) and a second sealing frame (404) being slidably connected to the surface of the first rubber ring (401), and the surface of the second sealing frame (404) being snapped into the inner wall of the first sealing frame (403).

2. The main unit of the screw air compressor according to claim 1, characterized in that, The encryption mechanism (400) further includes a positioning frame (405) and an anti-displacement block (406) slidably connected to the inner wall of the second sealing frame (404). The surface of the positioning frame (405) is engaged with the inner wall of the first sealing frame (403), and the end of the anti-displacement block (406) abuts against the end of the positioning frame (405).

3. The main unit of the screw air compressor according to claim 1, characterized in that, The inner wall of the second sealing frame (404) is slidably connected with a blocking block (407), one side of the blocking block (407) is in contact with one side of the anti-movement block (406).

4. The main unit of the screw air compressor according to claim 3, characterized in that, The inner wall of the second sealing frame (404) is threaded with two rubber screws (408), and the surface of the rubber screws (408) is engaged with the inner wall of the block (407).

5. The main unit of the screw air compressor according to claim 4, characterized in that, The inner wall of the rubber screw (408) is slidably connected to a positioning block (409), and the surface of the positioning block (409) is slidably connected to the inner wall of the second sealing frame (404).

6. The main unit of the screw air compressor according to claim 2, characterized in that, A spring (412) is fixedly connected to the end of the positioning frame (405).

7. The main unit of the screw air compressor according to claim 2, characterized in that, A slider (411) is fixedly connected to one side of the second sealing frame (404), and the inner wall of the anti-slip block (406) is slidably connected to the surface of the slider (411).

8. The main unit of the screw air compressor according to claim 4, characterized in that, One end of the rubber screw (408) is fixedly connected to a fixing rope (410), and the other end of the fixing rope (410) is fixedly connected to the top of the second sealing frame (404).

Images