Permanent magnet frequency conversion screw air compressor

Abstract

The utility model belongs to the technical field of air compressors, and particularly relates to a permanent magnet frequency conversion screw air compressor which comprises a permanent magnet frequency conversion screw air compressor body, grooves are formed in the two sides of the permanent magnet frequency conversion screw air compressor body, and a plurality of heat dissipation holes are formed in the two sides of the permanent magnet frequency conversion screw air compressor body. The heat dissipation holes communicate with the permanent magnet frequency conversion screw air compressor body and the corresponding grooves, fixing frames are installed in the grooves in an inserted mode, and filter screens are fixedly installed in the fixing frames. The two fixing assemblies are both located in the permanent magnet frequency conversion screw air compressor body and used for fixing the positions of the two fixing frames correspondingly. When the whole device is used, heat in the permanent magnet frequency conversion screw air compressor body can be dissipated, it is guaranteed that heat in the permanent magnet frequency conversion screw air compressor body is not high, meanwhile, a worker can conveniently clean the filter screen, the worker can conveniently install the filter screen after cleaning, tools are not needed, and installation is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of air compressors, and in particular relates to a permanent magnet variable frequency screw air compressor. Background Art

[0002] Permanent magnet variable frequency screw air compressor is a high-efficiency and energy-saving air compressor. Permanent magnet variable frequency screw air compressor is a variable frequency air compressor driven by a permanent magnet synchronous motor. This air compressor uses a permanent magnet synchronous motor to generate a magnetic field through power supply, drive the screw to rotate, and then compress the air.

[0003] For example, a Chinese patent with publication number CN210239997U discloses a permanent magnet variable frequency screw air compressor, including a cabinet, a push handle, an air inlet window, a cabinet door, a movable mechanism, a support frame, a support mechanism and sound insulation cotton. The push handle is arranged at the upper left end of the cabinet, and an air inlet window is arranged on the top surface of the cabinet, and sound insulation cotton is arranged on the inner wall of the cabinet, a movable mechanism is arranged at the lower ends of the left and right sides of the cabinet, and the cabinet door is arranged at the front end of the cabinet, the cabinet door and the cabinet are fixed by hinges, the support frames are arranged on both sides of the bottom of the cabinet, and support mechanisms are arranged at the four corners of the bottom of the cabinet. The design is reasonable, safe and reliable, and it is suitable for popularization and use.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: the heat dissipation of the above device is overall natural air cooling, but for some electronic components with large heat dissipation, it may cause uneven heat dissipation, which may cause excessive local temperature and affect the normal use of the device. At the same time, when the above device is in use, dust may enter the device, which may cause blockage in the device, causing the equipment to fail to operate normally and affecting the production of the enterprise. In view of this, we propose a permanent magnet variable frequency screw air compressor. Utility Model Content

[0006] The utility model aims to provide a permanent magnet variable frequency screw air compressor to solve the problems raised in the above background technology.

[0007] In view of this, the utility model provides a permanent magnet variable frequency screw air compressor, comprising:

[0008] A permanent magnet variable frequency screw air compressor body, wherein grooves are provided on both sides of the permanent magnet variable frequency screw air compressor body, and a plurality of heat dissipation holes are provided on both sides of the permanent magnet variable frequency screw air compressor body, wherein the heat dissipation holes are connected with the permanent magnet variable frequency screw air compressor body and the corresponding grooves, wherein a fixing frame is inserted and installed in the groove, and a filter is fixedly installed in the fixing frame;

[0009] Two fixing components, both of which are located in the permanent magnet variable frequency screw air compressor body and are used to fix the positions of the two fixing frames respectively;

[0010] A power cavity, wherein the power cavity is provided on one side of the permanent magnet variable frequency screw air compressor body, and the power cavity is communicated with the corresponding heat dissipation hole, and a plurality of worm gears are rotatably installed in the power cavity, and one end of the worm gear passes through the power cavity and extends into the permanent magnet variable frequency screw air compressor body and is fixedly installed with a heat dissipation fan blade;

[0011] A driving assembly is located in the permanent magnet variable frequency screw air compressor body and is used to drive a plurality of worm gears to rotate.

[0012] In the present technical scheme, when it is necessary to dissipate heat inside the permanent magnet variable frequency screw air compressor body, the drive assembly provided can drive a plurality of worm gears to rotate, and the plurality of worm gears respectively drive a plurality of heat dissipation fan blades to rotate, and the plurality of heat dissipation fan blades can draw cold air from the outside into a plurality of heat dissipation holes on the left through the filter screen on the left, and then the cold air enters the permanent magnet variable frequency screw air compressor body from the plurality of heat dissipation holes, and the heat inside the permanent magnet variable frequency screw air compressor body can be dissipated, and then the hot air inside the permanent magnet variable frequency screw air compressor body is discharged to the outside through a plurality of heat dissipation holes on the right and the filter screen on the right, so that the heat inside the permanent magnet variable frequency screw air compressor body will not be high;

[0013] The outside air entering the permanent magnet variable frequency screw air compressor body will be filtered by two filters, so that the outside dust will not enter the permanent magnet variable frequency screw air compressor body. When one of the filters needs to be cleaned, one of the fixed frames can be removed through the set fixing components, and one of the filters can be cleaned. When the filter is cleaned, the position of the fixed frame can be fixed through the set fixing components, which is convenient for personnel to install the filter after cleaning, and no tools are required, and the installation is simple.

[0014] In the above technical solution, further, the fixing assembly includes:

[0015] A limit groove, wherein the limit groove is provided in the permanent magnet variable frequency screw air compressor body and is located on one side of the groove, the limit groove is communicated with the groove, a sliding rod is symmetrically slidably installed in the limit groove, and the sides of the two sliding rods close to each other are both extended into the fixed frame, and the sides of the two sliding rods close to each other are both plugged and matched with the fixed frame;

[0016] A threaded rod, wherein the threaded rod is threadedly installed in a limiting groove, a sliding block is rotatably installed on one end of the threaded rod, a connecting rod is symmetrically rotatably installed on one end of the sliding block, one end of the two connecting rods are rotatably connected to the two sliding rods respectively, and the other end of the threaded rod passes through the limiting groove and extends to the outside.

[0017] In the present technical scheme, the outside air entering the permanent magnet variable frequency screw air compressor body will be filtered by the two filter screens, so that the outside dust will not enter the permanent magnet variable frequency screw air compressor body. When one of the filter screens needs to be cleaned, the corresponding turntable is first rotated forward, and the turntable drives the threaded rod to rotate forward. Under the action of the thread, the threaded rod slides and rotates in the direction of the sliding block, and the threaded rod pushes the sliding block to slide. The sliding block pushes the two connecting rods to rotate in the opposite direction. The two connecting rods respectively push the two sliding rods to slide and move away from each other. Then the two sliding rods are detached from one of the fixed frames. At this time, the personnel can disassemble one of the fixed frames and clean one of the filter screens.

[0018] When the filter is cleaned, the staff inserts the fixed frame into the corresponding groove and then rotates the turntable in the opposite direction. The turntable drives the threaded rod to rotate in the opposite direction. Under the action of the thread, the threaded rod slides and rotates in the direction away from the sliding block. The threaded rod pulls the sliding block to slide, and the sliding block pulls the two connecting rods to rotate towards each other. The two connecting rods respectively pull the two sliding rods to slide and approach each other. Finally, the two sliding rods are inserted into the fixed frame, which can fix the position of the fixed frame, making it convenient for staff to install the filter after cleaning. No tools are required, and the installation is simple.

[0019] In the above technical solution, further, the driving component includes:

[0020] A plurality of worm gears are rotatably installed in the power cavity and are respectively located on one side of a plurality of worm wheels, and the plurality of worm gears are respectively meshed with the plurality of worm wheels, and the plurality of worm gears on the left side are coaxially connected, and the plurality of worm gears on the right side are coaxially connected, a transmission wheel 1 is rotatably installed in the power cavity, and the transmission wheel 1 is coaxially connected to the plurality of worm gears on the left side, a transmission wheel 2 is rotatably installed in the power cavity and located on one side of the transmission wheel 1, and the transmission wheel 2 is coaxially connected to the plurality of worm gears on the right side, a transmission belt is installed for transmission between the transmission wheel 1 and the transmission wheel 2, a motor is fixedly installed on the top of the permanent magnet variable frequency screw air compressor body, and the motor is located above the transmission wheel 1, and the output shaft of the motor passes through the permanent magnet variable frequency screw air compressor body, extends into the power cavity, and is coaxially connected with the transmission wheel.

[0021] In the present technical scheme, when it is necessary to dissipate heat inside the permanent magnet variable frequency screw air compressor body, the motor is started first, the motor is powered on and drives the transmission wheel 1 to rotate, the transmission wheel 1 drives the transmission belt, the transmission belt drives the transmission wheel 2 to rotate, the transmission wheel 1 and the transmission wheel 2 respectively drive a number of worms to rotate, the number of worms respectively drive the worm wheels meshing with them to rotate, the number of worm wheels respectively drive a number of cooling fan blades to rotate, the number of cooling fan blades can draw the outside cold air through the filter on the left side into the number of cooling holes on the left side, and then the cold air enters the permanent magnet variable frequency screw air compressor body from the number of cooling holes, which can dissipate heat inside the permanent magnet variable frequency screw air compressor body, and then the hot air in the permanent magnet variable frequency screw air compressor body is discharged to the outside through the number of cooling holes on the right side and the filter on the right side, so that the heat inside the permanent magnet variable frequency screw air compressor body will not be high.

[0022] In the above technical solution, further, the output shaft of the motor is rotationally connected to the permanent magnet variable frequency screw air compressor body and the power chamber.

[0023] In this technical solution, it is ensured that the output shaft of the motor can rotate within the permanent magnet variable frequency screw air compressor body and the power chamber.

[0024] In the above technical solution, further, a plurality of the heat dissipation fan blades are linearly distributed with equal spacing.

[0025] In this technical solution, it is ensured that a plurality of heat dissipation fan blades can evenly dissipate heat within the permanent magnet variable frequency screw air compressor body.

[0026] In the above technical solution, further, a turntable is fixedly installed on the other end of the threaded rod, and handles are symmetrically fixedly installed on the sides of the two fixed frames that are away from each other.

[0027] In the technical solution, the provided turntable facilitates personnel to rotate the threaded rod, and the provided handle facilitates personnel to pull the fixed frame.

[0028] The beneficial effects of the utility model are:

[0029] 1. When the permanent magnet variable frequency screw air compressor needs to dissipate heat inside the permanent magnet variable frequency screw air compressor body, the set driving assembly can drive a plurality of worm gears to rotate, and the plurality of worm gears respectively drive a plurality of heat dissipation fan blades to rotate, and the plurality of heat dissipation fan blades can draw the cold air from the outside into the plurality of heat dissipation holes on the left through the filter on the left, and then the cold air enters the permanent magnet variable frequency screw air compressor body from the plurality of heat dissipation holes, which can dissipate heat inside the permanent magnet variable frequency screw air compressor body, and then the hot air inside the permanent magnet variable frequency screw air compressor body is discharged to the outside through the plurality of heat dissipation holes on the right and the filter on the right, so that the heat inside the permanent magnet variable frequency screw air compressor body will not be high.

[0030] 2. In this permanent magnet variable frequency screw air compressor, the outside air entering the permanent magnet variable frequency screw air compressor body will be filtered by two filters, so that the outside dust will not enter the permanent magnet variable frequency screw air compressor body. When one of the filters needs to be cleaned, one of the fixed frames can be removed through the set fixing components, and one of the filters can be cleaned. When the filter is cleaned, the position of the fixed frame can be fixed through the set fixing components, which is convenient for personnel to install the filter after cleaning, and no tools are required, and the installation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 This is one of the cross-sectional structural diagrams of the permanent magnet variable frequency screw air compressor body of the utility model;

[0033] Figure 3 The utility model Figure 2 The enlarged structural diagram at A in the middle;

[0034] Figure 4 This is the second schematic diagram of the cross-sectional structure of the permanent magnet variable frequency screw air compressor body of the utility model;

[0035] Figure 5 It is a schematic diagram of the heat dissipation fan blade area structure of the utility model.

[0036] The symbols in the figure are:

[0037] 1. Permanent magnet variable frequency screw air compressor body; 2. Groove; 3. Heat dissipation hole; 4. Fixed frame; 5. Filter; 6. Power chamber; 7. Worm gear; 8. Heat dissipation fan blades; 9. Turntable; 10. Limiting groove; 11. Sliding rod; 12. Threaded rod; 13. Sliding block; 14. Connecting rod; 15. Worm; 16. Transmission wheel 1; 17. Transmission wheel 2; 18. Transmission belt; 19. Motor; 20. Handle. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0039] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0041] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0042] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0043] Embodiment 1:

[0044] See also Figure 1 - Figure 5 As shown, this embodiment provides a permanent magnet variable frequency screw air compressor, comprising:

[0045] A permanent magnet variable frequency screw air compressor body 1, grooves 2 are provided on both sides of the permanent magnet variable frequency screw air compressor body 1, a plurality of heat dissipation holes 3 are provided on both sides of the permanent magnet variable frequency screw air compressor body 1, the heat dissipation holes 3 are connected with the permanent magnet variable frequency screw air compressor body 1 and the corresponding grooves 2, a fixing frame 4 is inserted and installed in the groove 2, and a filter 5 is fixedly installed in the fixing frame 4;

[0046] Two fixing components, both of which are located in the permanent magnet variable frequency screw air compressor body 1 and are used to fix the positions of the two fixing frames 4 respectively;

[0047] The power chamber 6 is provided on one side of the permanent magnet variable frequency screw air compressor body 1, and the power chamber 6 is communicated with the corresponding heat dissipation hole 3. A plurality of worm gears 7 are rotatably installed in the power chamber 6, and one end of the worm gear 7 passes through the power chamber 6 and extends into the permanent magnet variable frequency screw air compressor body 1 and is fixedly installed with a heat dissipation fan blade 8;

[0048] The driving assembly is located in the permanent magnet variable frequency screw air compressor body 1 and is used to drive a plurality of worm gears 7 to rotate.

[0049] Among them, when it is necessary to dissipate heat in the permanent magnet variable frequency screw air compressor body 1, the driving components provided can drive the plurality of worm gears 7 to rotate, and the plurality of worm gears 7 respectively drive the plurality of heat dissipation fan blades 8 to rotate, and the plurality of heat dissipation fan blades 8 can draw cold air from the outside into the plurality of heat dissipation holes 3 on the left through the filter screen 5 on the left, and then the cold air enters the permanent magnet variable frequency screw air compressor body 1 from the plurality of heat dissipation holes 3, and the heat in the permanent magnet variable frequency screw air compressor body 1 can be dissipated, and then the hot air in the permanent magnet variable frequency screw air compressor body 1 is discharged to the outside through the plurality of heat dissipation holes 3 on the right and the filter screen 5 on the right, so that the heat in the permanent magnet variable frequency screw air compressor body 1 will not be high;

[0050] The outside air entering the permanent magnet variable frequency screw air compressor body 1 will be filtered by the two filters 5, so that the outside dust will not enter the permanent magnet variable frequency screw air compressor body 1. When one of the filters 5 needs to be cleaned, one of the fixed frames 4 can be removed through the set fixing component, and one of the filters 5 can be cleaned. When the filter 5 is cleaned, the position of the fixed frame 4 can be fixed through the set fixing component, which is convenient for personnel to install the filter 5 after cleaning, and no tools are required, and the installation is simple.

[0051] In this embodiment, the fixing component includes:

[0052] The limiting groove 10 is provided in the permanent magnet variable frequency screw air compressor body 1 and is located on one side of the groove 2. The limiting groove 10 is connected to the groove 2. Sliding rods 11 are symmetrically slidably installed in the limiting groove 10. The sides of the two sliding rods 11 close to each other extend into the fixed frame 4, and the sides of the two sliding rods 11 close to each other are plugged and matched with the fixed frame 4.

[0053] A threaded rod 12, the threaded rod 12 is threadedly installed in the limiting groove 10, a sliding block 13 is rotatably installed on one end of the threaded rod 12, a connecting rod 14 is symmetrically rotatably installed on one end of the sliding block 13, one end of the two connecting rods 14 is rotatably connected to the two sliding rods 11 respectively, and the other end of the threaded rod 12 passes through the limiting groove 10 and extends to the outside;

[0054] Among them, the outside air entering the permanent magnet variable frequency screw air compressor body 1 will be filtered by the two filter screens 5, so that the outside dust will not enter the permanent magnet variable frequency screw air compressor body 1. When one of the filter screens 5 needs to be cleaned, first rotate the corresponding turntable 9 in the forward direction, and the turntable 9 drives the threaded rod 12 to rotate forward. Under the action of the thread, the threaded rod 12 slides and rotates in the direction of the sliding block 13, and the threaded rod 12 pushes the sliding block 13 to slide, and the sliding block 13 pushes the two connecting rods 14 to rotate in the opposite direction. The two connecting rods 14 respectively push the two sliding rods 11 to slide and move away from each other, and then the two sliding rods 11 are detached from one of the fixed frames 4. At this time, the personnel can disassemble one of the fixed frames 4 and clean one of the filter screens 5;

[0055] When the filter 5 is cleaned, the personnel inserts the fixed frame 4 into the corresponding groove 2, and then rotates the turntable 9 in the opposite direction. The turntable 9 drives the threaded rod 12 to rotate in the opposite direction. Under the action of the thread, the threaded rod 12 slides and rotates in the direction away from the sliding block 13, and the threaded rod 12 pulls the sliding block 13 to slide. The sliding block 13 pulls the two connecting rods 14 to rotate towards each other. The two connecting rods 14 respectively pull the two sliding rods 11 to slide and approach each other. Finally, the two sliding rods 11 are inserted into the fixed frame 4, which can fix the position of the fixed frame 4, making it convenient for personnel to install the filter 5 after cleaning, and no tools are required, and the installation is simple.

[0056] In this embodiment, the driving component includes:

[0057] A plurality of worms 15 are rotatably mounted on the power chamber 6 and are respectively located on one side of the plurality of worm wheels 7. The plurality of worms 15 are respectively meshed with the plurality of worm wheels 7. The plurality of worms 15 on the left are coaxially connected, and the plurality of worms 15 on the right are coaxially connected. A transmission wheel 16 is rotatably mounted in the power chamber 6, and the transmission wheel 16 is coaxially connected to the plurality of worms 15 on the left. A transmission wheel 2 17 is rotatably mounted in the power chamber 6 and located on one side of the transmission wheel 16. The transmission wheel 2 17 is coaxially connected to the plurality of worms 15 on the right. A transmission belt 18 is installed between the transmission wheel 16 and the transmission wheel 2 17. A motor 19 is fixedly mounted on the top of the permanent magnet variable frequency screw air compressor body 1. The motor 19 is located above the transmission wheel 16. The output shaft of the motor 19 passes through the permanent magnet variable frequency screw air compressor body 1 and extends into the power chamber 6 and is coaxially connected to the transmission wheel 16.

[0058] Among them, when it is necessary to dissipate heat in the permanent magnet variable frequency screw air compressor body 1, first start the motor 19, the motor 19 is powered on and drives the transmission wheel 16 to rotate, the transmission wheel 16 drives the transmission belt 18 to transmit, the transmission belt 18 drives the transmission wheel 2 17 to rotate, the transmission wheel 16 and the transmission wheel 2 17 respectively drive the plurality of worms 15 to rotate, the plurality of worms 15 respectively drive the worm wheels 7 meshing therewith to rotate, and the plurality of worm wheels 7 respectively drive the plurality of heat dissipation fan blades 8 to rotate, and the plurality of heat dissipation fan blades 8 can draw the cold air from the outside into the plurality of heat dissipation holes 3 on the left through the filter screen 5 on the left, and then the cold air enters the permanent magnet variable frequency screw air compressor body 1 from the plurality of heat dissipation holes 3, and the heat in the permanent magnet variable frequency screw air compressor body 1 can be dissipated, and then the hot air in the permanent magnet variable frequency screw air compressor body 1 is discharged to the outside through the plurality of heat dissipation holes 3 on the right and the filter screen 5 on the right, so that the heat in the permanent magnet variable frequency screw air compressor body 1 will not be high.

[0059] Embodiment 2:

[0060] This embodiment provides a permanent magnet variable frequency screw air compressor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] In this embodiment, the output shaft of the motor 19 is rotationally connected to the permanent magnet variable frequency screw air compressor body 1 and the power chamber 6 .

[0062] Therein, it is ensured that the output shaft of the motor 19 can rotate in the permanent magnet variable frequency screw air compressor body 1 and the power chamber 6 .

[0063] Embodiment 3:

[0064] This embodiment provides a permanent magnet variable frequency screw air compressor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0065] In this embodiment, a plurality of heat dissipation blades 8 are linearly distributed with equal spacing.

[0066] Among them, it is ensured that a plurality of heat dissipation blades 8 can evenly dissipate heat within the permanent magnet variable frequency screw air compressor body 1 .

[0067] Embodiment 4:

[0068] This embodiment provides a permanent magnet variable frequency screw air compressor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0069] In this embodiment, a rotating disk 9 is fixedly mounted on the other end of the threaded rod 12 , and handles 20 are symmetrically fixedly mounted on the sides of the two fixed frames 4 that are away from each other.

[0070] The turntable 9 is provided to facilitate personnel to rotate the threaded rod 12 , and the handle 20 is provided to facilitate personnel to pull the fixing frame 4 .

[0071] Working principle: when it is necessary to dissipate heat inside the permanent magnet variable frequency screw air compressor body 1, first start the motor 19, the motor 19 is powered on and drives the transmission wheel 16 to rotate, the transmission wheel 16 drives the transmission belt 18 to transmit, the transmission belt 18 drives the transmission wheel 2 17 to rotate, the transmission wheel 16 and the transmission wheel 2 17 respectively drive a number of worms 15 to rotate, the number of worms 15 respectively drive the worm wheels 7 meshing therewith to rotate, the number of worm wheels 7 respectively drive a number of heat dissipation fan blades 8 to rotate, the number of heat dissipation fan blades 8 can draw cold air from the outside into the number of heat dissipation holes 3 on the left through the filter screen 5 on the left, and then the cold air enters the permanent magnet variable frequency screw air compressor body 1 from the number of heat dissipation holes 3, which can dissipate heat inside the permanent magnet variable frequency screw air compressor body 1, and then the hot air in the permanent magnet variable frequency screw air compressor body 1 is discharged to the outside through the number of heat dissipation holes 3 on the right and the filter screen 5 on the right, so that the heat inside the permanent magnet variable frequency screw air compressor body 1 will not be high;

[0072] The outside air entering the permanent magnet variable frequency screw air compressor body 1 will be filtered by the two filter screens 5, so that the outside dust will not enter the permanent magnet variable frequency screw air compressor body 1. When one of the filter screens 5 needs to be cleaned, firstly, the corresponding turntable 9 is rotated forward, and the turntable 9 drives the threaded rod 12 to rotate forward. Under the action of the thread, the threaded rod 12 slides and rotates in the direction of the sliding block 13, and the threaded rod 12 pushes the sliding block 13 to slide, and the sliding block 13 pushes the two connecting rods 14 to rotate in the opposite direction. The two connecting rods 14 respectively push the two sliding rods 11 to slide and move away from each other, and then the two sliding rods 11 are detached from one of the fixed frames 4. At this time, the personnel can pull the two handles 20 on one of the fixed frames 4 to disassemble one of the fixed frames 4, and then one of the filter screens 5 can be cleaned;

[0073] When the filter 5 is cleaned, the personnel pulls the two handles 20, then inserts the fixed frame 4 into the corresponding groove 2, and then rotates the turntable 9 in the opposite direction. The turntable 9 drives the threaded rod 12 to rotate in the opposite direction. Under the action of the thread, the threaded rod 12 slides and rotates in the direction away from the sliding block 13, and the threaded rod 12 pulls the sliding block 13 to slide. The sliding block 13 pulls the two connecting rods 14 to rotate towards each other. The two connecting rods 14 respectively pull the two sliding rods 11 to slide and approach each other. Finally, the two sliding rods 11 are inserted into the fixed frame 4, and the position of the fixed frame 4 can be fixed, which is convenient for personnel to install the filter 5 after cleaning, and no tools are needed, and the installation is simple.

[0074] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A permanent magnet variable frequency screw air compressor, characterized in that: include: A permanent magnet variable frequency screw air compressor body (1), grooves (2) are provided on both sides of the permanent magnet variable frequency screw air compressor body (1), a plurality of heat dissipation holes (3) are provided on both sides of the permanent magnet variable frequency screw air compressor body (1), the heat dissipation holes (3) are connected to the permanent magnet variable frequency screw air compressor body (1) and the corresponding grooves (2), a fixing frame (4) is inserted and installed in the groove (2), and a filter screen (5) is fixedly installed in the fixing frame (4); Two fixing components, both of which are located in the permanent magnet variable frequency screw air compressor body (1) and are used to fix the positions of the two fixing frames (4) respectively; A power chamber (6), wherein the power chamber (6) is provided on one side of the permanent magnet variable frequency screw air compressor body (1), and the power chamber (6) is communicated with the corresponding heat dissipation hole (3), and a plurality of worm gears (7) are rotatably mounted in the power chamber (6), and one end of the worm gear (7) passes through the power chamber (6) and extends into the permanent magnet variable frequency screw air compressor body (1) and is fixedly mounted with a heat dissipation fan blade (8); A drive assembly is located in a permanent magnet variable frequency screw air compressor body (1) and is used to drive a plurality of worm gears (7) to rotate.

2. A permanent magnet variable frequency screw air compressor according to claim 1, characterized in that: The fixing assembly comprises: A limit groove (10), wherein the limit groove (10) is provided in the permanent magnet variable frequency screw air compressor body (1) and is located on one side of the groove (2), the limit groove (10) is connected to the groove (2), a sliding rod (11) is symmetrically slidably installed in the limit groove (10), the sides of the two sliding rods (11) close to each other both extend into the fixed frame (4), and the sides of the two sliding rods (11) close to each other both plug and match with the fixed frame (4); A threaded rod (12), wherein the threaded rod (12) is threadedly installed in the limiting groove (10), a sliding block (13) is rotatably installed on one end of the threaded rod (12), a connecting rod (14) is symmetrically rotatably installed on one end of the sliding block (13), one end of the two connecting rods (14) are respectively rotatably connected to the two sliding rods (11), and the other end of the threaded rod (12) passes through the limiting groove (10) and extends to the outside.

3. A permanent magnet variable frequency screw air compressor according to claim 2, characterized in that: The drive assembly comprises: A plurality of worms (15), the plurality of worms (15) are rotatably mounted in the power chamber (6) and are respectively located on one side of the plurality of worm wheels (7), the plurality of worms (15) are respectively meshed with the plurality of worm wheels (7), the plurality of worms (15) on the left side are coaxially connected, the plurality of worms (15) on the right side are coaxially connected, a transmission wheel (16) is rotatably mounted in the power chamber (6), and the transmission wheel (16) is coaxially connected to the plurality of worms (15) on the left side, and the transmission wheel (16) is rotatably mounted in the power chamber (6) and is located on one side of the transmission wheel (16). A transmission wheel (17) is installed, and the transmission wheel (17) is coaxially connected to the right worm gears (15). A transmission belt (18) is installed between the transmission wheel (16) and the transmission wheel (17). A motor (19) is fixedly installed on the top of the permanent magnet variable frequency screw air compressor body (1). The motor (19) is located above the transmission wheel (16). The output shaft of the motor (19) passes through the permanent magnet variable frequency screw air compressor body (1) and extends into the power chamber (6) and is coaxially connected to the transmission wheel (16).

4. A permanent magnet variable frequency screw air compressor according to claim 3, characterized in that: The output shaft of the motor (19) is rotationally connected to the permanent magnet variable frequency screw air compressor body (1) and the power chamber (6).

5. The permanent magnet variable frequency screw air compressor according to claim 1, characterized in that: The plurality of heat dissipation blades (8) are linearly distributed at equal intervals.

6. A permanent magnet variable frequency screw air compressor according to claim 2, characterized in that: A rotating disk (9) is fixedly mounted on the other end of the threaded rod (12).

7. A permanent magnet variable frequency screw air compressor according to claim 1, characterized in that: Handles (20) are symmetrically fixedly mounted on the sides of the two fixed frames (4) that are away from each other.

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