Efficient double-chamber vortex type compressor

Abstract

The utility model relates to the technical field of compression pumps, in particular to an efficient double-chamber vortex type compressor which comprises a shell, a movable disc and a driving shaft, a compression cavity is arranged in the shell, an air inlet communicated with the compression cavity is arranged at the bottom of the shell, double exhaust holes are arranged at the top of the shell, and a transition ring is rotatably clamped on the inner wall of the compression cavity. The transition ring is rotationally clamped with a hoist shaft; the movable disc is movably connected into the compression cavity, a clamping groove is formed in the movable disc, the free end of the hoist shaft is rotationally clamped with the clamping groove, a sinking groove is formed in the upper top of the movable disc, the sinking groove and the inner top of the shell are sealed, a ventilation cavity is formed, an air inlet notch is formed in the movable disc, and a plurality of ventilation holes are formed in the movable disc; the driving shaft is rotationally connected with the shell, one end of the driving shaft partially extends into the compression cavity and is fixed to an eccentric column, and the eccentric column is rotationally connected with the movable disc. Air can be compressed twice in the process that the movable disc rotates by one circle, the exhaust interval of high-pressure air is reduced, and the output continuity of the high-pressure air is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compression pumps, in particular to a high-efficiency double-chamber scroll compressor. Background Art

[0002] There are many types of air compression pumps, which can be divided into volumetric compression pumps and velocity compression pumps according to their working principles. The working principle of a volumetric compression pump is to compress the volume of gas, increase the density of gas molecules per unit volume to increase the pressure of the compressed air, and the working principle of a velocity compression pump is to increase the movement speed of gas molecules, convert the kinetic energy of gas molecules into the pressure energy of gas, thereby increasing the pressure of compressed air.

[0003] The Chinese patent with publication number CN218151419U discloses a high-efficiency vortex compression pump head, which limits the rotation angle of the moving plate by inserting an eccentric sleeve cylindrical pin on the positioning sleeve, and then through the rotational connection between the cavity and the transition ring, the rotational connection between the transition ring and the gourd shaft, and the rotational connection between the gourd shaft and the moving plate, the rotation of the connection between the moving plate and the cavity is very smooth, reducing the friction at the connection between the moving plate and the cavity and improving work efficiency.

[0004] However, in the above patent, the eccentric drive shaft is driven to rotate by a motor, thereby driving the moving disk to rotate and swing in the cavity. Under the compression of the moving disk, the air pressure in the cavity increases, and the high-pressure gas is pushed open by the double exhaust holes on the bottom cover under the rotation and squeezing of the moving disk, and then the high-pressure gas is discharged into the high-pressure cavity. However, during the rotation and swinging of the moving disk in the cavity, the eccentric drive shaft must be driven by the motor to rotate one circle before the air in the cavity can be compressed, so the efficiency is low, and a certain interval is required to discharge the high-pressure gas into the high-pressure cavity through compression, and the continuity of the output high-pressure gas is low. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the utility model provides a high-efficiency dual-chamber scroll compressor, which can compress the air twice during the process of the moving disk rotating one circle, and reduce the exhaust interval of the high-pressure air, so as to solve the problem that the prior art requires the motor to drive the eccentric drive shaft to rotate one circle before the air in the cavity can be compressed, the efficiency is low, and a certain interval is required to discharge the high-pressure gas into the high-pressure chamber through compression, and the continuity of the output high-pressure gas is low.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model provides a high-efficiency double-chamber scroll compressor, including: a shell, a moving plate and a driving shaft, wherein the shell is provided with a compression chamber, an air inlet hole connected to the compression chamber is provided at the bottom of the shell, and double exhaust holes are provided at the top of the shell. A transition ring is rotatably clamped on the inner wall of the compression chamber, and the transition ring is rotatably clamped with a gourd shaft; the moving plate is movably connected in the compression chamber, a clamping groove is provided on the moving plate, and the free end of the gourd shaft is rotatably clamped with the clamping groove, a sinking groove is provided on the top of the moving plate, and the sinking groove is sealed with the top of the shell to form a ventilation chamber, an air inlet notch is provided on the moving plate, and a plurality of ventilation holes are opened on the moving plate; the driving shaft is rotatably connected to the shell, one end portion of the driving shaft extends into the compression chamber and is fixed with an eccentric column, and the eccentric column is rotatably connected to the moving plate.

[0009] Optionally, the shell includes an upper shell, a lower shell and a connecting ring, the upper shell, the lower shell and the connecting ring are fixed by bolts, the transition ring is rotatably connected to the connecting ring, the upper shell is provided with double exhaust holes, and the lower shell is provided with an air inlet hole.

[0010] Optionally, the inner wall of the connecting ring is provided with a small arc groove and a large arc groove adapted to the transition ring, the transition ring and the connecting ring are rotatably connected at the connection point embedded in the small arc groove, and the transition ring and the hoist shaft are rotatably connected and can be movably inserted in the large arc groove.

[0011] Optionally, the transition ring and the hoist shaft are rotatably connected and can be completely embedded in the large arc groove.

[0012] Optionally, a gas outlet notch is provided on the connecting ring, and the high-pressure gas in the compression chamber can enter the double exhaust holes along the notch.

[0013] Optionally, the notch is semi-cylindrical.

[0014] Optionally, a plurality of limiting tubes are fixedly provided in the sinking groove of the movable plate, and the plurality of limiting tubes are arranged in a ring shape along the center of the movable plate, and a first limiting column adapted to the limiting tube is fixed to the upper shell.

[0015] Optionally, the movable disk is located in the limiting tube and a second limiting column is fixed therein, and the first limiting column abuts against an outer wall of the second limiting column.

[0016] Optionally, the first limiting post is rotatably connected to the upper shell, and the second limiting post is rotatably connected to the movable plate.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a high-efficiency double-chamber scroll compressor, which has the following beneficial effects:

[0019] 1. The utility model uses a housing, a moving disc, a driving shaft, a transition ring, and a hoist shaft, so that during the movement of the moving disc, the moving disc cooperates with the hoist shaft and the transition ring to separate the compression chamber into two chambers, and the driving shaft and the eccentric column drive the moving disc to compress and inhale the two chambers, so that during the rotation of the moving disc, the air is compressed twice, the exhaust interval of the high-pressure air is reduced, and the continuity of the high-pressure gas output is increased;

[0020] 2. The utility model provides a small arc groove and a large arc groove adapted to the transition ring on the inner wall of the connecting ring, so that during the movement of the movable plate, the transition ring and the hoist shaft can be rotated and engaged and embedded in the large arc groove, thereby increasing the active clearance between the transition ring and the housing and reducing wear;

[0021] 3. The utility model prevents the moving disk from making irregular movements during its movement, thereby affecting the compression effect of the moving disk on the air and improving the stability of the moving disk's movement, through the first limiting column, the second limiting column and the limiting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 Shows Figure 1 Schematic diagram of the structure viewed from above;

[0024] Figure 3 A schematic diagram of the internal structure of the housing is shown;

[0025] Figure 4 Shows Figure 3 Schematic diagram of the structure viewed from above;

[0026] Figure 5 A schematic diagram of the structure of the moving disk is shown;

[0027] Figure 6 A schematic structural diagram of the lower shell and the connecting ring is shown.

[0028] In the figure: 1. air inlet; 2. shell; 201. upper shell; 202. lower shell; 203. connecting ring; 3. double exhaust holes; 4. transition ring; 5. gourd shaft; 6. moving plate; 7. slot; 8. sinking groove; 9. air inlet gap; 10. ventilation hole; 11. driving shaft; 12. eccentric column; 13. bolt; 14. small arc groove; 15. large arc groove; 16. exhaust gap; 17. limiting tube; 18. first limiting column; 19. second limiting column; 20. compression chamber; 21. ventilation chamber. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example: See Figures 1 to 6 According to an embodiment of the utility model, a technical solution is provided: a high-efficiency double-chamber scroll compressor, comprising: a shell 2, a moving plate 6 and a driving shaft 11, wherein the shell 2 is provided with a compression chamber 20, an air inlet hole 1 communicating with the compression chamber 20 is provided at the bottom of the shell 2, and a double exhaust hole 3 is provided at the top of the shell 2, a transition ring 4 is rotatably connected to the inner wall of the compression chamber 20, and the transition ring 4 is rotatably connected to a gourd shaft 5; the moving plate 6 is movably connected in the compression chamber 20, a card slot 7 is provided on the moving plate 6, and the free end of the gourd shaft 5 is rotatably connected to the card slot 7, a sinking groove 8 is provided on the top of the moving plate 6, and the sinking groove 8 is sealed with the top of the shell 2 to form a ventilation chamber 21, an air inlet notch 9 is provided on the moving plate 6, and a plurality of ventilation holes 10 are opened on the moving plate 6; the driving shaft 11, It is rotatably connected to the shell 2, and one end portion of the drive shaft 11 extends into the compression chamber 20 and is fixed to an eccentric column 12. The eccentric column 12 is rotatably connected to the moving disk 6. It should be noted that both sides of the moving disk 6 are sealed with the top and bottom of the shell 2; and when the drive shaft 11 drives the moving disk 6 to move along the rotation center of the drive shaft 11 through the eccentric column 12, the moving disk 6 divides the compression chamber 20 into two chambers; when the moving disk 6 moves to a certain extent along the rotation center of the drive shaft 11, the air exchange hole 10 is connected with the air inlet hole 1, and external gas can enter the air exchange chamber 21 formed between the sinking groove 8 and the top of the shell 2 through the air inlet hole 1 along the air exchange hole 10. It should also be noted that a one-way valve is also provided in the double exhaust hole 3, and the one-way valve is used to prevent the high-pressure gas discharged from the double exhaust hole 3 from flowing back.

[0031] The high-efficiency scroll compressor head with the above structure rotates the drive shaft 11 through the motor. During the rotation, the eccentric column 12 drives the moving disc 6 to move along the rotation center of the drive shaft 11. When the movement reaches a certain extent, the external gas can enter the ventilation cavity 21 formed between the sinking groove 8 and the top of the shell 2 through the air inlet hole 1 along the air exchange hole 10. When the moving disc 6 moves, the moving disc 6 cooperates with the gourd shaft 5 and the transition ring 4 to separate the compression cavity 20 into two cavities. When the internal space of a cavity becomes larger due to the movement of the moving disc 6, the external gas is sucked into the cavity along the air inlet notch 9. When the moving disc 6 continues to move, the cavity gradually becomes smaller to compress the air in the cavity. The high-pressure air in the cavity is discharged along the double exhaust holes 3, and in this process, the space in the other cavity opposite to it also gradually increases to absorb air, and in the continuous movement of the moving disk 6, the internal air is compressed and discharged. The high-efficiency vortex compressor head can compress the air twice in the process of the eccentric column 12 driving the moving disk 6 to rotate one circle, and reduce the exhaust interval of the high-pressure air, increase the continuity of the high-pressure gas output, and solve the problem that the air in the cavity can only be compressed after the motor drives the eccentric drive shaft 11 to rotate one circle in the prior art, which is inefficient, and a certain interval is required to discharge the high-pressure gas into the high-pressure cavity through compression, and the continuity of the output high-pressure gas is low.

[0032] In this embodiment, during long-term operation, wear is likely to occur between the movable disk 6 and the shell 2 of the compressor head. Although the wear rate is gradually reduced with the development of the times, it is still impossible to effectively avoid loss. Therefore, in order to better assemble and disassemble and facilitate maintenance and replacement, the shell 2 is configured as an upper shell 201, a lower shell 202 and a connecting ring 203. The upper shell 201, the lower shell 202 and the connecting ring 203 are fixed by bolts 13, and the transition ring 4 is rotatably connected with the connecting ring 203. The upper shell 201 is provided with double exhaust holes 3, and the lower shell 202 is provided with an air inlet hole 1, so that the shell 2 can be better assembled and disassembled, and the assembly process is simple, which can be quickly assembled by the bolts 13, and the disassembly is simple. In subsequent maintenance, it is also convenient to disassemble the shell 2 and replace the movable disk 6 or the shell 2 and other components.

[0033] In this embodiment, during the continuous movement of the moving disk 6, it is necessary to contact the transition ring 4 twice for each rotation, which may cause the connection between the transition ring 4 and the hoist shaft 5 to abut against the inner wall of the connecting ring 203, causing wear on the connecting ring 203 and / or the transition ring 4. When the wear reaches a certain extent, it may easily cause a gap between the shell 2 and the moving disk 6, thereby reducing the compression effect on the air. For this reason, a small arc groove 14 and a large arc groove 15 that are compatible with the transition ring 4 are provided on the inner wall of the connecting ring 203. The transition ring 4 and the connecting ring 203 are rotatably connected at the small arc groove 14, and the transition ring 4 and the hoist shaft 5 are rotatably connected and can be movably inserted in the large arc groove 15. When the moving disk 6 moves, the transition ring 4 and the hoist shaft 5 are rotatably connected and can be partially embedded in the large arc groove 15, thereby increasing the movable gap between the transition ring 4 and the shell 2 and reducing wear.

[0034] In this embodiment, in order to further reduce the wear between the connecting ring 203 and / or the transition ring 4, the transition ring 4 and the hoist shaft 5 are rotatably engaged and can be completely embedded in the large arc groove 15, so that when the moving disk 6 moves to a certain extent, it is more difficult to contact the connecting ring 203, thereby further reducing the wear between the connecting ring 203 and / or the transition ring 4.

[0035] In this embodiment, in order to further increase the compression of the air, an air outlet notch 16 is provided on the connecting ring 203, and the high-pressure gas in the compression chamber 20 can enter the double exhaust holes 3 along the notch. When the moving disk 6 compresses the air in the compression chamber 20, the air in a single cavity in the compression chamber 20 gradually decreases until the air is compressed by the moving disk 6 to the cavity where the air outlet notch 16 exists, and then discharged along the double exhaust holes 3.

[0036] In this embodiment, in order not to hinder the normal movement of the moving plate 6, the notch is semi-cylindrical.

[0037] In the present embodiment, when the moving disk 6 is driven by the driving shaft 11 and the eccentric column 12 to move, some irregular movements may occur. The irregular movements may be caused by the vibration of the motor, the pressure generated by the moving disk 6 on the compressed air, etc. In order to prevent the moving disk 6 from moving irregularly, a plurality of limiting tubes 17 are fixedly provided in the sinking groove 8 of the moving disk 6. The plurality of limiting tubes 17 are arranged in a ring shape along the center of the moving disk 6. The upper shell 201 is fixed with a first limiting column 18 that is compatible with the limiting tube 17. The limiting tube 17 rotates around the outer wall of the first limiting column 18. The limiting tube 17 is multi-directionally limited by the plurality of first limiting columns 18, so that the movement of the moving disk 6 is kept within a predetermined range.

[0038] In this embodiment, in order to further increase the limiting effect, a second limiting column 19 is fixed in the limiting tube 17 on the movable disk 6, and the first limiting column 18 is abutted against the outer wall of the second limiting column 19, so that the first limiting column 18 and the second limiting column 19 and the limiting tube 17 are abutted against each other, thereby further increasing the limiting effect.

[0039] In this embodiment, there is a long period of circumferential friction between the first limit post 18 and the second limit post 19 as well as the limit tube 17, which causes wear between the first limit post 18 and the second limit post 19, or wear on the limit tube 17. When the wear is large, the first limit post 18 and the second limit post 19 as well as the limit tube 17 cannot have a limiting effect. Therefore, the first limit post 18 is rotatably connected to the upper shell 201, and the second limit post 19 is rotatably connected to the moving disk 6. The first limit post 18 and the second limit post 19 can rotate during the limiting process to reduce wear.

[0040] Working principle: The electric drive shaft 11 is rotated by the rotation of the motor, and the drive shaft 11 drives the eccentric column 12 to rotate along the rotation center of the drive shaft 11, thereby driving the movable plate 6 to move along the rotation center of the drive shaft 11. When the movable plate 6 moves to a certain extent, the external gas can enter the ventilation cavity 21 formed between the sinking groove 8 and the top of the shell 2 through the air inlet 1 along the air exchange hole 10. When the movable plate 6 moves again, the air inlet 1 is closed to seal the compression cavity 20. After that, the movable plate 6 continues to move. The cooperation of the movable plate 6 with the gourd shaft 5 and the transition ring 4 will separate the compression cavity 20 into two cavities. When the internal space of one cavity is filled with the movable plate, the movable plate 6 will be compressed. When the movement of the moving disk 6 becomes larger, the external gas is sucked into the cavity along the air inlet notch 9. When the moving disk 6 continues to move, the cavity gradually becomes smaller to compress the air in the cavity until the air is compressed by the moving disk 6 to the cavity where the air outlet notch 16 exists, and then discharged along the double exhaust holes 3. In this process, the space in the other cavity opposite to it also gradually increases to absorb air, and during the continuous movement of the moving disk 6, the internal air is compressed and discharged. In the compression process, due to the cooperation between the limit tube 17 and the first limit column 18 and the second limit column 19, irregular movement of the moving disk 6 is prevented during the movement, which affects the compression of the air.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency double-chamber scroll compressor, characterized in that: include: A shell (2) is provided with a compression chamber (20) therein; an air inlet (1) communicating with the compression chamber (20) is provided at the bottom of the shell (2); a double air outlet (3) is provided at the top of the shell (2); a transition ring (4) is rotatably engaged with the inner wall of the compression chamber (20); and the transition ring (4) is rotatably engaged with a gourd shaft (5); A movable plate (6) is movably connected in the compression cavity (20), a slot (7) is provided on the movable plate (6), a free end of the gourd shaft (5) is rotatably engaged with the slot (7), a sinking groove (8) is provided on the top of the movable plate (6), the sinking groove (8) and the top of the shell (2) are sealed to form a ventilation cavity (21), an air inlet notch (9) is provided on the movable plate (6), and a plurality of ventilation holes (10) are opened on the movable plate (6); A drive shaft (11) is rotatably connected to the housing (2), one end portion of the drive shaft (11) extends into the compression chamber (20) and is fixed to an eccentric column (12), and the eccentric column (12) is rotatably connected to the moving disk (6).

2. A high-efficiency dual-chamber scroll compressor according to claim 1, characterized in that: The shell (2) comprises an upper shell (201), a lower shell (202) and a connecting ring (203); the upper shell (201), the lower shell (202) and the connecting ring (203) are fixed by bolts (13); the transition ring (4) is rotatably engaged with the connecting ring (203); the upper shell (201) is provided with the double exhaust holes (3), and the lower shell (202) is provided with the air inlet hole (1).

3. A high-efficiency dual-chamber scroll compressor according to claim 2, characterized in that: The inner wall of the connecting ring (203) is provided with a small arc groove (14) and a large arc groove (15) adapted to the transition ring (4); the transition ring (4) and the connecting ring (203) are rotatably connected and embedded in the small arc groove (14); the transition ring (4) and the hoist shaft (5) are rotatably connected and movably inserted in the large arc groove (15).

4. A high-efficiency dual-chamber scroll compressor according to claim 3, characterized in that: The transition ring (4) is rotatably engaged with the hoist shaft (5) and can be completely embedded in the large arc groove (15).

5. The high-efficiency dual-chamber scroll compressor according to claim 2, characterized in that: The connecting ring (203) is provided with a gas outlet notch (16), and the high-pressure gas in the compression chamber (20) can enter the double exhaust holes (3) along the notch.

6. A high-efficiency dual-chamber scroll compressor according to claim 5, characterized in that: The notch is semi-cylindrical.

7. The high-efficiency dual-chamber scroll compressor according to claim 2, characterized in that: A plurality of position limiting tubes (17) are fixedly provided in the sinking groove (8) of the movable plate (6), and the plurality of position limiting tubes (17) are arranged in a circular shape along the center of the movable plate (6). The upper shell (201) is fixed with a first position limiting column (18) adapted to the position limiting tubes (17).

8. The high-efficiency dual-chamber scroll compressor according to claim 7, characterized in that: The movable plate (6) is located inside the limiting tube (17) and is fixed with a second limiting column (19), and the first limiting column (18) abuts against the outer wall of the second limiting column (19).

9. The high-efficiency dual-chamber scroll compressor according to claim 8, characterized in that: The first limiting post (18) is rotatably connected to the upper shell (201), and the second limiting post (19) is rotatably connected to the movable plate (6).

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