A screw air compressor case

Abstract

The utility model relates to the technical field of case production and processing, disclose a screw air compressor case, including base, the outer wall fixedly connected with box of base, the inner wall slidingly connected with the air -permeable board of box, the outer wall of box is provided with the electric cabinet, the electric cabinet electric connection has the controller, the controller respectively with motor, inlet valve and fan electric connection, the outer wall fixedly connected with the bracket of motor, the output fixedly connected with host computer of motor, the air inlet end of host computer is connected with air filter through inlet valve, the exhaust end of host computer is connected with oil gas bucket, the outer wall of oil gas bucket is equipped with oil sight glass, in the utility model, through electric cabinet and controller etc.

Description

Technical Field

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

[0002] The screw air compressor casing is a closed structure that houses the main unit, motor, control system and other core components. It is the integrated carrier and protective core of the equipment. It is usually made of metal materials and has functions such as sound insulation, dust prevention and heat dissipation.

[0003] However, traditional equipment lacks an efficient self-checking and oil condition pre-judgment mechanism before system startup, which can easily lead to startup failure due to motor abnormalities or insufficient oil level; moreover, oil-gas separation relies on a single structure, resulting in low separation efficiency and easy lubricant loss or excessive oil content in compressed air; in addition, its heat dissipation and oil control subsystems have poor linkage, making it difficult to dynamically adjust according to operating parameters, which can easily cause equipment failure due to excessively high oil temperature and unstable pressure. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a screw air compressor housing, which aims to improve the problems of poor self-inspection efficiency, low separation efficiency, and low heat dissipation control efficiency of traditional equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screw air compressor housing, including a base, a housing body fixedly connected to the outer wall of the base, a vent plate slidably connected to the inner wall of the housing body, an electrical control box provided on the outer wall of the housing body, an electrical controller electrically connected to the electrical control box, the controller being electrically connected to a motor, an intake valve, and a fan respectively, a bracket fixedly connected to the outer wall of the motor, a main unit fixedly connected to the output end of the motor, the intake end of the main unit being connected to an air filter through an intake valve, the exhaust end of the main unit being connected to an oil-gas tank, an oil sight glass provided on the outer wall of the oil-gas tank, and the outer wall of the oil-gas tank being connected to the intake end of a minimum pressure valve through an oil-gas separator, the exhaust end of the minimum pressure valve being connected to the intake channel of a cooler, a fan provided on the outer wall of the cooler, and the outer wall of the oil-gas tank being connected to the input end of the cooler's oil channel through an oil filter, and multiple disassembly and assembly components provided on the inner wall of the vent plate.

[0006] Through the above technical solution: When the equipment starts up, it is powered by the electrical control box. The controller completes the system self-test to check for abnormalities. After confirming the state of the lubricating oil in the oil-gas tank through the oil sight glass, it can start operating. Outside air enters and is filtered by the air filter. After the air intake valve controls the flow, it enters the main unit. The motor drives the main unit to compress air. The lubricating oil in the oil-gas tank is filtered by the oil filter and then injected into the compression chamber. The resulting oil-gas mixture undergoes coarse separation by centrifugal force in the oil-gas tank, and then fine separation by the oil-gas separator. The oil droplets flow back, and the clean air enters the cooler through the minimum pressure valve to cool down before being output through the tank's guide pipe. At the same time, the lubricating oil in the oil-gas tank undergoes secondary filtration by the oil filter and then enters the cooler. After being cooled by the fan, it flows back to the main unit's compression chamber, completing the oil circulation.

[0007] Preferably, the disassembly assembly includes multiple buttons, each button being slidably connected to the inner wall of the ventilated plate. One end of each button is fixedly connected to a connecting block, and the outer wall of the connecting block is slidably connected to a connecting rod. Both ends of the connecting rod are slidably connected to a rotating shaft, and the outer wall of the connecting rod is slidably connected to a sliding rod. The sliding rod is slidably connected to a limit rod, and a spring is provided on the side of the sliding rod adjacent to the ventilated plate.

[0008] Preferably, the outer walls of the housing, the ventilated plate, and the electrical control box are all provided with ventilated mesh.

[0009] Preferably, the bracket is fixedly connected to the outer wall of the main unit, and the main unit is fixedly connected to the outer wall of the base.

[0010] Preferably, the motor, main unit, oil filter, and oil-gas tank are fixedly connected to the outer wall of the base.

[0011] Preferably, the cooler is fixedly connected to the oil supply end of the main unit via a pipe.

[0012] Preferably, the inner wall of the breathable plate is provided with a groove, the connecting block is slidably connected in the groove, the rotating shaft is rotatably connected to the inner wall of the connecting block, and one of the rotating shafts is rotatably connected to the inner wall of the slide rod.

[0013] Preferably, the slide rod is slidably connected to the inner wall of the housing and the ventilated plate, the limiting rod is fixedly connected to the inner wall of the ventilated plate, and the spring is sleeved on the outer wall of the limiting rod.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, through structures such as the electrical control box, controller, and oil sight glass, abnormalities are detected to ensure startup safety, impurities are intercepted to reduce wear of the main unit, improve the compression efficiency and service life of the main unit, improve oil-gas separation efficiency, reduce lubricating oil consumption and ensure the cleanliness of output air, achieve efficient circulation, avoid oil aging, meet air demand, achieve dynamic and precise control, reduce vibration impact and protect equipment, and ensure the overall stability and safety of equipment operation.

[0016] 2. In this utility model, the locking between the vent plate and the housing is quickly released through the cooperation of the button, connecting block and rotating shaft and other structures, so as to realize the quick disassembly of the vent plate, thereby improving the efficiency of inspection and maintenance, and at the same time facilitating the cleaning of the vent plate, avoiding the clogging of its mesh due to long-term operation, which would affect ventilation and heat dissipation, and prevent the internal temperature of the equipment from being too high and causing safety hazards. Attached Figure Description

[0017] Figure 1 This is a front perspective three-dimensional structural view of a screw air compressor housing proposed in this utility model;

[0018] Figure 2 This is a rear-view perspective structural diagram of a screw air compressor housing proposed in this utility model;

[0019] Figure 3 This is a front view of the internal structure of a screw air compressor housing proposed in this utility model;

[0020] Figure 4 This is a rear-view three-dimensional structural diagram of the internal structure of a screw air compressor housing proposed in this utility model;

[0021] Figure 5 A front sectional view of the disassembly and assembly assembly of a screw air compressor housing proposed in this utility model;

[0022] Figure 6 This is a right-side cross-sectional view of the disassembly and assembly assembly of a screw air compressor housing proposed in this utility model.

[0023] Legend:

[0024] 1. Base; 2. Housing; 3. Ventilation plate; 4. Oil level indicator; 5. Electrical control box; 6. Controller; 7. Motor; 8. Bracket; 9. Main unit; 10. Inlet valve; 11. Air filter; 12. Fan; 13. Cooler; 14. Oil filter; 15. Minimum pressure valve; 16. Oil-gas tank; 17. Oil-gas separator; 18. Button; 19. Connecting block; 20. Rotating shaft; 21. Connecting rod; 22. Slide rod; 23. Limiting rod; 24. Spring. Detailed Implementation

[0025] 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 embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figures 1-4 This utility model provides an embodiment of a screw air compressor housing, including a base 1, a housing 2 fixedly connected to the outer wall of the base 1, a vent plate 3 slidably connected to the inner wall of the housing 2, an electrical control box 5 disposed on the outer wall of the housing 2, an electrical controller 6 electrically connected to the electrical control box 5, the controller 6 being electrically connected to a motor 7, an intake valve 10, and a fan 12 respectively, a bracket 8 fixedly connected to the outer wall of the motor 7, a main unit 9 fixedly connected to the output end of the motor 7, and the intake end of the main unit 9 being connected to the intake valve 10. 0 is connected to the air filter 11, the exhaust end of the main unit 9 is connected to the oil and gas tank 16, the outer wall of the oil and gas tank 16 is provided with an oil viewing mirror 4, and the outer wall of the oil and gas tank 16 is connected to the air inlet of the minimum pressure valve 15 through the oil and gas separator 17. The exhaust end of the minimum pressure valve 15 is connected to the air inlet channel of the cooler 13. The outer wall of the cooler 13 is provided with a fan 12. The outer wall of the oil and gas tank 16 is connected to the oil channel input end of the cooler 13 through the oil filter 14. The inner wall of the vent plate 3 is provided with multiple disassembly and assembly components.

[0027] Specifically, the equipment is powered by the electrical control box 5, then the controller 6 performs a system self-check to check for abnormalities and ensure safe operation. The oil level and condition of the lubricating oil in the oil-gas tank 16 are then observed through the oil sight glass 4. Once confirmed, the equipment can be started. During operation, the controller 6 monitors parameters in real time. When the temperature is too high, the fan 12 speed is increased to enhance heat dissipation. When the pressure is abnormal, the intake valve 10 opening is adjusted to control the air intake. If the oil level is too low or the motor 7 is overloaded, a shutdown protection is triggered, ensuring comprehensive equipment safety. Outside air enters and passes through the air filter 11 to intercept dust, preventing impurities from entering the main unit 9 and causing wear. The intake valve 10 then controls the airflow into the main unit 9, ensuring that the compression efficiency of the main unit 9 matches the load requirements. The bracket 8 reduces vibration transmission during motor 7 operation, preventing deviations in the transmission between the motor 7 and the main unit 9. Starting the motor 7 drives the main unit 9 to draw air into the compression chamber and compress it, raising the air temperature. At this time, the oil filter 14 intercepts the air in the oil-gas tank 16. The lubricating oil is then injected into the compression chamber of the main unit 9 to achieve lubrication, sealing, and cooling functions. This reduces screw meshing wear, improves compression sealing and heat dissipation efficiency, and extends the service life of the main unit 9. The lubricating oil and the air inside the main unit 9 form an oil-gas mixture, which is discharged into the oil-gas tank 16. Under the action of centrifugal force, the oil-gas mixture is coarsely separated and then filtered by the glass fiber filter element in the oil-gas separator 17. The oil mist is adsorbed on the surface of the filter element and agglomerates into oil droplets, which flow back into the oil-gas tank 16, improving the oil-gas separation efficiency, reducing lubricating oil loss, and outputting clean air. The clean air enters the cooler 13 through the minimum pressure valve 15 to cool down, ensuring smooth oil circulation. It is output through the guide pipe in the housing 2. At the same time, the lubricating oil in the oil-gas tank 16 is filtered twice by the oil filter 14 and enters the cooler 13. It is then cooled by the forced air cooling of the fan 12 to prevent the oil from aging due to high temperature. The cooled lubricating oil flows back to the compression chamber on the inner wall of the main unit 9, finally completing the oil circulation and ensuring that the output air meets the usage requirements.

[0028] Reference Figure 1 , Figure 5 and Figure 6 The assembly includes multiple buttons 18, which are slidably connected to the inner wall of the ventilated plate 3. One end of the button 18 is fixedly connected to a connecting block 19, and the outer wall of the connecting block 19 is slidably connected to a connecting rod 21. Both ends of the connecting rod 21 are slidably connected to a rotating shaft 20 on their inner walls. The outer wall of the connecting rod 21 is slidably connected to a sliding rod 22, which is slidably connected to a limit rod 23. A spring 24 is provided on the side of the sliding rod 22 that is close to the ventilated plate 3.

[0029] Specifically, pressing button 18 causes it to slide inside the vent plate 3, and the connecting block 19 slides together, allowing the connecting block 19 and the connecting rod 21 to slide relative to each other via the rotating shaft 20. Simultaneously, the other end of the connecting rod 21 slides relative to the sliding rod 22 via one of the rotating shafts 20. Through the rotation of the rotating shaft 20, the connecting rod 21 drives the sliding rod 22 to slide along the outer wall of the limiting rod 23, compressing the spring 24 on the side of the sliding rod 22 closest to the vent plate 3. This causes the sliding rod 22 to slide out from the inner wall of the housing 2 into the vent plate 3, thereby releasing the lock between the vent plate 3 and the housing 2, achieving quick disassembly. During installation, pressing button 18 causes the sliding rod 22 to detach from the housing 2 and slide into the vent plate 3. Then, the vent plate... 3. Insert it into the housing 2, then release button 18. At this time, spring 24 releases its elastic force to push slide rod 22 to slide in the opposite direction along limit rod 23, slide from inside the vent plate 3 and lock into the housing 2. Through the cooperation of rotating shaft 20 and connecting rod 21, connecting block 19 and button 18 are driven to reset, completing the quick installation and locking. This allows for quick disassembly and assembly of vent plate 3 and housing 2 without the need for tools, facilitating inspection and maintenance, shortening time, and improving efficiency. It also makes it easy to regularly remove and clean vent plate 3, preventing its mesh from being blocked by long-term dust accumulation, which would affect the ventilation and heat dissipation inside housing 2, and prevent the equipment from overheating due to poor heat dissipation, thus ensuring the safety and stability of equipment operation.

[0030] Reference Figure 3 and Figure 4 The outer walls of the housing 2, the vent plate 3, and the electrical control box 5 are all provided with ventilated mesh holes; the bracket 8 is fixedly connected to the outer wall of the main unit 9, and the main unit 9 is fixedly connected to the outer wall of the base 1; the motor 7, the main unit 9, the oil filter 14, and the oil and gas tank 16 are fixedly connected to the outer wall of the base 1; the cooler 13 is fixedly connected to the oil supply end of the main unit 9 through a pipe.

[0031] Specifically, the ventilation mesh forms a three-dimensional ventilation path through its interplay of permeable holes. The mesh of the housing 2 facilitates the entry of external cold air, the mesh of the ventilation plate 3 accelerates the expulsion of internal hot air, and the mesh of the electrical control box 5 dissipates heat from the internal electrical components. This combination enhances the efficiency of air convection inside and outside the housing 2, preventing performance degradation of components due to heat accumulation. Furthermore, the quick-release structure of the ventilation plate 3 allows for regular cleaning of the mesh, ensuring long-term smooth ventilation. The bracket 8 and the main unit 9 form auxiliary support, which, combined with the fixation of the base 1, strengthens the stability of the main unit 9 installation and reduces the impact of high-speed screw rotation during operation. The resulting vibration offset avoids gaps in the transmission cooperation with motor 7, ensuring stable compression efficiency; the base 1 serves as a unified load-bearing foundation, enabling the core components to form a compact and stable layout, which shortens the length of the oil circulation pipeline to reduce pressure loss, and avoids collisions between components due to vibration during equipment operation, thus extending the overall service life; the lubricating oil cooled by cooler 13 is directly delivered to the compression chamber of the main unit 9, avoiding secondary heating of the lubricating oil during transmission, ensuring that it can still maintain an ideal temperature when entering the compression chamber, playing a role in lubrication, sealing and cooling, further reducing the wear of the main unit 9 during operation, thereby extending the equipment life.

[0032] Reference Figure 5 and Figure 6 The inner wall of the ventilated plate 3 is provided with a sliding groove, the connecting block 19 is slidably connected in the sliding groove, the rotating shaft 20 is rotatably connected to the inner wall of the connecting block 19, and one of the rotating shafts 20 is rotatably connected to the inner wall of the sliding rod 22; the sliding rod 22 is slidably connected to the inner wall of the box 2 and the ventilated plate 3, the limiting rod 23 is fixedly connected to the inner wall of the ventilated plate 3, and the spring 24 is sleeved on the outer wall of the limiting rod 23.

[0033] Specifically, when the connecting block 19 slides, the movement trajectory of the connecting block 19 is constrained by the groove in the vent plate 3, reducing wear, avoiding deviation and jamming, and ensuring smooth operation. At the same time, the sliding rod 22 is driven to slide from the housing 2 into the vent plate 3 through the cooperation of the rotating shaft 20. The limiting rod 23 is fixed by the vent plate 3, which increases the stability and guidance of the sliding rod 22. When the sliding rod 22 slides, it compresses the spring 24 and limits it through the limiting rod 23, so that the spring 24 extends and retracts on the outer wall of the limiting rod 23, avoiding displacement and entanglement, so that the equipment remains stable during operation, and further improves the smoothness and stability of the equipment operation.

[0034] Working principle: First, power is supplied through the electrical control box 5, the controller 6 is started and the system self-test is completed, checking the status of the motor 7, temperature and pressure sensors. At the same time, the oil level and quality of the lubricating oil in the oil-gas tank 16 are confirmed by the oil level sight glass 4. Then, outside air is filtered by the air filter 11 to intercept dust, and the flow rate is controlled by the air inlet valve 10 to enter the main unit 9. The motor 7 drives the screw in the main unit 9 to rotate at high speed under the support of the bracket 8. The volume between the screws periodically expands to form a negative pressure, which draws air into the compression chamber. After entering the compression stage, the screw continues to rotate, causing the volume to shrink. The air is compressed and the temperature rises. At the same time, the lubricating oil in the oil-gas tank 16 is filtered by the oil filter 14 to intercept impurities and then injected into the compression chamber, achieving the effects of lubrication, sealing and cooling. Finally, an oil-gas mixture is formed and discharged into the oil-gas tank 16. After the oil-gas mixture enters the oil-gas tank 16, it rotates along the tank wall due to the tangential air intake design. Under the action of centrifugal force, large oil droplets are thrown towards the tank wall. At this time, the flow rate decreases due to the sudden expansion of the volume, and the large oil droplets settle by gravity. Coarse separation is completed at the bottom of the tank. The remaining gas containing fine oil mist enters the oil-gas separator 17, where it is filtered and coalesced by the glass fiber filter element. The oil mist is adsorbed on the fiber surface and coalesces into oil droplets, flowing back to the oil-gas tank 16, ultimately obtaining clean air. At the same time, the lubricating oil at the bottom of the oil-gas tank 16 is filtered twice by the oil filter 14 and then enters the cooler 13. The fan 12 forces air cooling to lower the oil temperature, and then it flows back to the compression chamber of the main unit 9 to complete the oil circulation. The separated compressed air first passes through the minimum pressure valve 15, then enters the cooler 13 for cooling, and finally exits from the air supply port through the guide channel inside the housing 2. Throughout the process, the controller 6 monitors parameters such as pressure, temperature, and current in real time and adjusts them by regulating the intake valve 10. When the temperature is too high, the speed of the fan 12 is increased to achieve dynamic control. When the oil level is too low or the motor 7 is overloaded, the shutdown protection is triggered. The base 1 provides shock absorption, the housing 2 provides protection, and the vent plate 3 assists in heat dissipation, all working together to ensure stable operation of the system and improve the stability and safety of the equipment.

[0035] When the equipment needs inspection and maintenance, pressing button 18 causes it to slide inside the ventilated plate 3, simultaneously causing the connecting block 19 to slide. This causes the rotating shaft 20 to rotate on the inner wall of the connecting block 19 and the connecting rod 21, allowing the connecting rod 21 to slide on the outer wall of the connecting block 19. At this time, the other end of the connecting rod 21 slides on the outer wall of the slide rod 22 through one of the rotating shafts 20, causing the slide rod 22 to slide out from the inner wall of the housing 2 into the ventilated plate 3, thus releasing the locking relationship between the ventilated plate 3 and the housing 2. This achieves the effect of quick disassembly, improves the efficiency of inspection and maintenance, and also allows for cleaning of the ventilated plate 3, preventing the mesh from becoming clogged due to prolonged operation, which would affect the ventilation and heat dissipation effect, leading to excessively high internal temperatures and potential safety hazards.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw air compressor housing, comprising a base (1), characterized in that: The outer wall of the base (1) is fixedly connected to a housing (2), and the inner wall of the housing (2) is slidably connected to a vent plate (3). An electrical control box (5) is provided on the outer wall of the housing (2), and the electrical control box (5) is electrically connected to a controller (6). The controller (6) is electrically connected to a motor (7), an air intake valve (10), and a fan (12). A bracket (8) is fixedly connected to the outer wall of the motor (7), and a main unit (9) is fixedly connected to the output end of the motor (7). The air intake end of the main unit (9) is connected to an air filter (11) through an air intake valve (10). The exhaust end of the main unit (9) is connected to the oil and gas tank (16). The outer wall of the oil and gas tank (16) is provided with an oil viewing mirror (4). The outer wall of the oil and gas tank (16) is connected to the air inlet of the minimum pressure valve (15) through the oil and gas separator (17). The exhaust end of the minimum pressure valve (15) is connected to the air inlet channel of the cooler (13). The outer wall of the cooler (13) is provided with a fan (12). The outer wall of the oil and gas tank (16) is connected to the oil channel input end of the cooler (13) through the oil filter (14). The inner wall of the vent plate (3) is provided with multiple disassembly and assembly components.

2. The screw air compressor housing according to claim 1, characterized in that: The assembly and disassembly assembly includes multiple buttons (18), which are slidably connected to the inner wall of the ventilated plate (3). One end of the button (18) is fixedly connected to a connecting block (19), and the outer wall of the connecting block (19) is slidably connected to a connecting rod (21). Both ends of the connecting rod (21) are slidably connected to a rotating shaft (20) on their inner walls. The outer wall of the connecting rod (21) is slidably connected to a sliding rod (22), and the sliding rod (22) is slidably connected to a limit rod (23). A spring (24) is provided on the side of the sliding rod (22) that is close to the ventilated plate (3).

3. The screw air compressor housing according to claim 1, characterized in that: The outer walls of the box (2), the ventilated plate (3) and the electrical control box (5) are all provided with ventilated mesh.

4. The screw air compressor housing according to claim 1, characterized in that: The bracket (8) is fixedly connected to the outer wall of the main unit (9), and the main unit (9) is fixedly connected to the outer wall of the base (1).

5. The screw air compressor housing according to claim 1, characterized in that: The motor (7), main unit (9), oil filter (14) and oil and gas tank (16) are fixedly connected to the outer wall of the base (1).

6. The screw air compressor housing according to claim 1, characterized in that: The cooler (13) is fixedly connected to the oil supply end of the main unit (9) via a pipe.

7. A screw air compressor housing according to claim 2, characterized in that: The inner wall of the breathable plate (3) is provided with a sliding groove, the connecting block (19) is slidably connected in the sliding groove, the rotating shaft (20) is rotatably connected to the inner wall of the connecting block (19), and one of the rotating shafts (20) is rotatably connected to the inner wall of the slide rod (22).

8. A screw air compressor housing according to claim 2, characterized in that: The slide rod (22) is slidably connected to the inner wall of the box (2) and the ventilated plate (3), the limiting rod (23) is fixedly connected to the inner wall of the ventilated plate (3), and the spring (24) is sleeved on the outer wall of the limiting rod (23).

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