CN220227193U - Micro-oil permanent magnet variable-frequency medium-pressure screw air compressor - Google Patents

Abstract

The utility model discloses a micro-oil permanent magnet variable-frequency medium-pressure screw air compressor, which comprises a shell, wherein two fixed cylinders are fixedly connected to the inner wall of the shell, a plurality of radiating fins are fixedly connected to the inner wall of the fixed cylinders, a permanent magnet motor is fixedly connected to one end of each radiating fin, which is far away from the fixed cylinder, a rotating shaft is rotatably connected to the inner wall of each permanent magnet motor, a rotating drum is fixedly connected to one end of each rotating shaft, and a plurality of centrifugal impellers are fixedly connected to the surface of each rotating drum. In the use process, gas enters the permanent magnet motor through the air holes on the surface of the fan window and is discharged through the connecting pipe, heat in the permanent magnet motor is taken away, the gas is required to be sucked in the operation process of the air compressor, and the sucked gas sequentially passes through the radiating fins and the interior of the permanent magnet motor, so that the purpose of cooling the permanent magnet motor is realized, and the permanent magnet motor is prevented from being in a high-temperature state for a long time, so that the permanent magnet motor is demagnetized.

Description

Micro-oil permanent magnet variable-frequency medium-pressure screw air compressor

Technical Field

The utility model relates to the field of air compressors, in particular to a micro-oil permanent magnet variable-frequency medium-pressure screw type air compressor.

Background

The air compressor is a device for compressing air, and in recent years, the air compressor is rapidly developed and widely applied to various industries, and the permanent magnet variable frequency air compressor is welcomed by the vast majority of users due to the characteristics of high efficiency, energy conservation, stable pressure and the like, and the permanent magnet motor is greatly reduced in energy consumption compared with a common motor, so that electric energy is saved.

However, in the prior art, when the permanent magnet variable frequency air compressor is in actual use, a large amount of heat can be generated in the operation process, and the permanent magnet motor is in a high-temperature state for a long time, so that the permanent magnet motor is demagnetized.

Disclosure of Invention

The utility model aims to provide a micro-oil permanent magnet variable-frequency medium-pressure screw type air compressor, which aims to solve the problem that a permanent magnet motor is demagnetized when the permanent magnet motor is in a high-temperature state for a long time because a large amount of heat is generated in the operation process of the permanent magnet variable-frequency air compressor.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including the casing, the inner wall fixedly connected with two fixed barrels of casing, the inner wall fixedly connected with of fixed barrel a plurality of heat radiation fins, the one end fixedly connected with permanent-magnet machine of fixed barrel is kept away from to heat radiation fins, permanent-magnet machine's inner wall rotation is connected with the pivot, the one end fixedly connected with rotary drum of pivot, the surface fixedly connected with a plurality of centrifugal impellers of rotary drum, the surface fixedly connected with fan window of permanent-magnet machine, a plurality of gas pockets have been seted up to the surface of fan window, the surface fixedly connected with connecting pipe of fan window, the surface fixedly connected with intake pipe of fixed barrel, the surface fixedly connected with gas purifier of casing.

Preferably, the connecting pipe is fixedly penetrated and extended to the inner wall of the shell, and the surface of the air inlet pipe is fixedly penetrated and extended to the surface of the shell.

Preferably, the surface of the gas purifier is fixedly connected with one end of the gas inlet pipe, which is far away from the fixed cylinder.

Preferably, the inner wall of the shell is provided with an air outlet groove, and the bottom end of the shell, which is opposite to the air outlet groove, is fixedly connected with an air outlet pipe.

Preferably, one end of the rotating shaft far away from the rotary drum is fixedly connected with a first rotating shaft, and the surface of the first rotating shaft is fixedly connected with a driving screw.

Preferably, the surface of the driving screw is meshed with a driven screw, and the inner wall of the driven screw is fixedly connected with a second rotating shaft.

Preferably, the surface of the first rotating shaft and the surface of the second rotating shaft are respectively fixedly connected with ball bearings, and the surfaces of the ball bearings are fixedly connected with the inner wall of the shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. in the use process, the air compressor can generate air pressure difference to suck external air when compressing the air, the air enters an air inlet pipe after being purified by an air purifier, the air enters a fixed cylinder through the air inlet pipe, the air in the fixed cylinder passes through a hole between the fixed cylinder and a radiating fin, the radiating fin takes away part of heat of a permanent magnet motor through heat conduction, meanwhile, the air enters the permanent magnet motor through an air hole on the surface of a fan window and is discharged through a connecting pipe, meanwhile, the heat in the permanent magnet motor is taken away, the air is required to be sucked in during the operation process of the air compressor, the sucked air passes through the radiating fin and the permanent magnet motor in sequence, the aim of cooling the permanent magnet motor is fulfilled, and the permanent magnet motor is prevented from being demagnetized in a high-temperature state for a long time;

2. the rotary drum and the centrifugal impeller are arranged at the tail end of the rotating shaft of the permanent magnet motor, the rotating shaft is driven to rotate when the permanent magnet motor operates, the rotary drum and the centrifugal impeller are driven to rotate by the rotating shaft, the centrifugal impeller can accelerate the gas flow rate in the permanent magnet motor through rotation, and the heat dissipation capacity of the permanent magnet motor is enhanced;

3. the permanent magnet motors and the rotating shafts are arranged at the two ends of the first rotating shaft, so that the two permanent magnet motors can alternately and alternately work, the temperature of the permanent magnet motors can be effectively reduced, and the phenomenon that the air compressor cannot normally operate due to the fact that a single permanent magnet motor breaks down can be prevented.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a micro-oil permanent magnet variable frequency medium pressure screw type air compressor;

fig. 2 is a front sectional view of a permanent magnet motor structure of a micro-oil permanent magnet variable frequency medium voltage screw type air compressor;

fig. 3 is a top-down sectional view of a permanent magnet motor structure of a micro-oil permanent magnet variable-frequency medium-voltage screw type air compressor;

fig. 4 is a front sectional view of an active screw structure of a micro-oil permanent magnet variable frequency medium pressure screw type air compressor;

fig. 5 is a side sectional view of a permanent magnet motor structure of a micro-oil permanent magnet variable frequency medium voltage screw type air compressor;

fig. 6 is an enlarged view of a structure of a micro-oil permanent magnet variable frequency medium pressure screw type air compressor at a position A in fig. 2.

In the figure: 1. a housing; 2. a fixed cylinder; 3. a heat radiation fin; 4. a permanent magnet motor; 5. a rotating shaft; 6. a first rotation shaft; 7. a drive screw; 8. a second rotation shaft; 9. a driven screw; 10. a ball bearing; 11. a rotating drum; 12. a centrifugal impeller; 13. a window fan; 14. air holes; 15. an air inlet pipe; 16. a gas purifier; 17. a connecting pipe; 18. an air outlet groove; 19. and an air outlet pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution: including casing 1, the inner wall fixedly connected with two fixed barrels 2 of casing 1, the inner wall fixedly connected with of fixed barrel 2 a plurality of fin 3, the one end fixedly connected with permanent magnet motor 4 of fixed barrel 2 is kept away from to fin 3, the heat of the inside of permanent magnet motor 4 is taken away through heat conduction to fin 3, the inner wall rotation of permanent magnet motor 4 is connected with pivot 5, the one end fixedly connected with rotary drum 11 of pivot 5, the fixed surface of rotary drum 11 is connected with a plurality of centrifugal impellers 12, centrifugal impeller 12 is at work, the air current gets into the blade space by the fan axial, then on the one hand along with the impeller rotation under the drive of impeller, on the other hand improves the energy under the effect of inertia, leave the impeller along the radius direction, the fixed surface of permanent magnet motor 4 is connected with fan window 13, a plurality of gas pockets 14 have been seted up to the surface of fan window 13, the fixed surface of fan window is connected with connecting pipe 17, the fixed surface of fixed barrel 2 is connected with intake pipe 15, the fixed surface of casing 1 is connected with gas purifier 16, gas purifier 16 can filter the dust in the gas compressor machine inside the air compressor machine, prevent to get into the inside the air compressor machine and lead to the increase of internal friction.

The connection pipe 17 is fixedly penetrated and extended to the inner wall of the housing 1, and the surface of the intake pipe 15 is fixedly penetrated and extended to the surface of the housing 1.

The surface of the gas purifier 16 is fixedly connected with one end of the gas inlet pipe 15 away from the fixed cylinder 2.

The inner wall of the shell 1 is provided with an air outlet groove 18, and the bottom end of the shell 1 opposite to the air outlet groove 18 is fixedly connected with an air outlet pipe 19.

One end of the rotating shaft 5 far away from the rotary drum 11 is fixedly connected with a first rotating shaft 6, and the surface of the first rotating shaft 6 is fixedly connected with a driving screw 7.

The surface of the driving screw 7 is meshed with a driven screw 9, and the inner wall of the driven screw 9 is fixedly connected with a second rotating shaft 8.

The surface of the first rotating shaft 6 and the surface of the second rotating shaft 8 are fixedly connected with ball bearings 10 respectively, the surfaces of the ball bearings 10 are fixedly connected with the inner wall of the shell 1, and the ball bearings 10 can reduce friction force in the running process of the first rotating shaft 6 and the second rotating shaft 8 and improve running power of the air compressor.

Working principle: in the use process of the utility model, the permanent magnet motor 4 drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the first rotating shaft 6 and the driving screw 7 to rotate, the driving screw 7 drives the driven screw 9 and the second rotating shaft 8 to rotate, the driving screw 7 and the driven screw 9 compress the rotating gas through meshing, the compressed gas is discharged through the air outlet groove 18 and the air outlet pipe 19, the air compressor generates air pressure difference in the air compression process, the outside air is sucked, the air enters the air inlet pipe 15 after being purified by the air purifier 16, the air enters the fixed cylinder 2 through the air inlet pipe 15, the air in the fixed cylinder 2 passes through the pores between the fixed cylinder 2 and the heat dissipation fins 3, part of heat of the permanent magnet motor 4 can be taken away by the heat dissipation fins 3 through heat conduction, meanwhile, the air enters the permanent magnet motor 4 through the air holes 14 on the surface of the fan window 13 and is discharged through the connecting pipe 17, simultaneously takes away the heat in the permanent magnet motor 4, the air compressor needs to suck air in the operation process, the sucked air passes through the heat radiation fins 3 and the inside of the permanent magnet motor 4 in sequence, the purpose of cooling the permanent magnet motor 4 is realized, the permanent magnet motor 4 is prevented from being in a high temperature state for a long time, the permanent magnet motor 4 is demagnetized, the rotary drum 11 and the centrifugal impeller 12 are arranged at the tail end of the rotary shaft 5 of the permanent magnet motor 4, the rotary shaft 5 is driven to rotate when the permanent magnet motor 4 operates, the rotary drum 11 and the centrifugal impeller 12 are driven to rotate by the rotary shaft 5, the air flow rate in the permanent magnet motor 4 can be accelerated by the rotation of the centrifugal impeller 12, the heat radiation capability of the permanent magnet motor 4 is enhanced, the permanent magnet motor 4 and the rotary shaft 5 are arranged at the two ends of the first rotary shaft 6, the two permanent magnet motors 4 can alternately operate in turn, the temperature of the permanent magnet motor 4 can be effectively reduced, it is also possible to prevent the failure of the single permanent magnet motor 4 from causing the air compressor to be unable to operate normally.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a little oily permanent magnetism frequency conversion middling pressure screw air compressor machine, includes casing (1), its characterized in that: the inner wall fixedly connected with two fixed barrels (2) of casing (1), the inner wall fixedly connected with of fixed barrel (2) a plurality of fin (3), the one end fixedly connected with permanent magnet motor (4) of fixed barrel (2) are kept away from to fin (3), the inner wall rotation of permanent magnet motor (4) is connected with pivot (5), the one end fixedly connected with rotary drum (11) of pivot (5), the surface fixedly connected with a plurality of centrifugal impeller (12) of rotary drum (11), the surface fixedly connected with fan window (13) of permanent magnet motor (4), a plurality of gas pockets (14) have been seted up to the surface of fan window (13), the surface fixedly connected with connecting pipe (17) of fan window (13), the surface fixedly connected with intake pipe (15) of fixed barrel (2), the surface fixedly connected with gas purifier (16) of casing (1).

2. The micro-oil permanent magnet variable-frequency medium-pressure screw air compressor according to claim 1, wherein: the connecting pipe (17) is fixedly penetrated and extends to the inner wall of the shell (1), and the surface of the air inlet pipe (15) is fixedly penetrated and extends to the surface of the shell (1).

3. The micro-oil permanent magnet variable-frequency medium-pressure screw air compressor according to claim 1, wherein: the surface of the gas purifier (16) is fixedly connected with one end of the gas inlet pipe (15) far away from the fixed cylinder (2).

4. The micro-oil permanent magnet variable-frequency medium-pressure screw air compressor according to claim 1, wherein: an air outlet groove (18) is formed in the inner wall of the shell (1), and an air outlet pipe (19) is fixedly connected to the bottom end of the shell (1) relative to the air outlet groove (18).

5. The micro-oil permanent magnet variable-frequency medium-pressure screw air compressor according to claim 1, wherein: one end of the rotating shaft (5) far away from the rotary drum (11) is fixedly connected with a first rotating shaft (6), and the surface of the first rotating shaft (6) is fixedly connected with a driving screw (7).

6. The micro-oil permanent magnet variable frequency medium voltage screw type air compressor according to claim 5, wherein: the surface of the driving screw rod (7) is meshed with the driven screw rod (9), and the inner wall of the driven screw rod (9) is fixedly connected with a second rotating shaft (8).

7. The micro-oil permanent magnet variable frequency medium voltage screw type air compressor according to claim 6, wherein: the surface of the first rotating shaft (6) and the surface of the second rotating shaft (8) are fixedly connected with ball bearings (10) respectively, and the surfaces of the ball bearings (10) are fixedly connected with the inner wall of the shell (1).