Novel rotor air compressor

Abstract

The invention discloses a novel rotor air compressor, and relates to the technical field of air compressors. The pump comprises a pump body, the interior of the pump body is composed of three semicircular inner cavities, an eccentric shaft is rotatably installed in the pump body, a rotor is fixedly installed on the outer side of the eccentric shaft, the rotor is shaped like a Chinese character'ji ', three air holes are annularly formed in the outer side of the pump body, and the three air holes communicate with the three semicircular inner cavities correspondingly; the outer sides of the air holes are connected with air inlet and outlet valves, and when the rotor completely enters the semicircular inner cavity, a compression space exists between the end point of the rotor and the semicircular inner cavity. Compression is carried out through rotation, work is carried out three times after rotation is carried out for one circle, each cylinder body can independently adjust the air pressure, air is sucked when the cylinder body rotates to an air suction port, compression is completed when the cylinder body rotates to a semicircular inner cavity, high-pressure exhaust is carried out, the maximum compression ratio can reach 70 bar, and under the clamping of a high-compression-ratio simple structure, the compression efficiency is greatly improved. And the product is more energy-saving and efficient.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, and in particular to a novel rotor air compressor. Background Art

[0002] An air compressor is a device used to compress gas. The structure of an air compressor is similar to that of a water pump. Most air compressors are reciprocating piston type, rotating blades or rotating screws.

[0003] A piston compressor is a positive displacement compressor, whose compression element is a piston that reciprocates in a cylinder. During the compression process, more heat is generated, and an additional cooling system may be required to prevent overheating. It consumes a lot of energy, and its working pressure is usually 2bar-30bar; a scroll compressor is a positive displacement compressor, and compression is achieved by the forced motion of a rotating element. A scroll compressor is sensitive to impurities and moisture in the gas, which may cause failure or performance degradation, and its working pressure is usually 1.5bar-3.5bar; a screw compressor is a rotary positive displacement compressor, in which two rotors with helical gears mesh with each other, causing the volume of the two rotors meshing from large to small, thereby compressing and discharging the gas. The purchase and installation of a screw compressor is cost-effective. The cost is usually higher, and the investment payback period is longer than other types of compressors. In addition, when operating at partial load or low load, the energy efficiency may be low, resulting in energy waste. Its working pressure is usually 5bar-25bar; centrifugal compressors are speed-type compressors, in which one or more rotating impellers (the blades are usually on the side) accelerate the gas. Centrifugal compressors have poor adaptability to changes in flow and pressure and are mainly suitable for applications with constant flow. When operating at high speed, they may produce large noise and vibration, and shock absorption measures need to be taken. Its working pressure is usually 2bar-10bar; existing air compressors, whether piston, vortex, screw, or centrifugal air compressors, have defects such as low compression ratio, low workmanship efficiency, and high energy consumption. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a novel rotor air compressor.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A novel rotor air compressor comprises a pump body, wherein the interior of the pump body is composed of three groups of semicircular inner cavities, an eccentric shaft is rotatably installed inside the pump body, a rotor is fixedly installed outside the eccentric shaft, and the rotor is in the shape of a letter "Z";

[0007] The outer side of the pump body is provided with three groups of air holes in a ring shape, which are respectively connected to the three groups of semicircular inner cavities. The outer sides of the air holes are connected to inlet and exhaust valves. When the rotor completely enters the semicircular inner cavity, there is a compression space between the rotor end point and the semicircular inner cavity.

[0008] Furthermore, a sealing sleeve is provided on the outer side of the rotor.

[0009] Furthermore, a sealing sheet is installed at the joint of the semicircular inner cavities.

[0010] Furthermore, a slide groove is provided at the joint of the semicircular inner cavity, an adjusting plate is fixedly installed inside the slide groove, the sealing plate is slidably connected in the slide groove, and a sealing spring is provided between the sealing plate and the adjusting plate.

[0011] Furthermore, a countersunk hole is provided on the outer side of the pump body, the countersunk hole is connected with the slide groove, and a bolt is connected to the internal sealing thread of the countersunk hole, and the bolt is rotatably installed on the adjusting plate.

[0012] Furthermore, the pump body has open ends, a front end cover is fixedly installed on the front end of the pump body, a rear end cover is fixedly installed on the back of the pump body, an eccentric wheel is rotatably installed inside the rear end cover, the eccentric shaft is fixedly installed on the eccentric wheel, an axial hole is opened inside the front end cover, and the eccentric shaft passes through the axial hole.

[0013] Furthermore, a first bearing is arranged between the eccentric wheel and the rear end cover, and a second bearing is arranged between the eccentric shaft and the shaft hole.

[0014] Furthermore, an oil seal is provided between the eccentric shaft and the shaft hole.

[0015] Furthermore, a side cover is fixedly installed between the front end cover and the pump body, a gear hole is opened inside the side cover, and a stabilizing gear is arranged at the front end of the rotor, and the stabilizing gear is meshed with the gear hole.

[0016] Furthermore, a swing cavity is provided between the front end cover and the eccentric cover, a swing piece is provided on the outer side of the eccentric shaft, and the swing piece is located in the swing cavity.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention has a simple structure, uncomplicated processing and production technology, high compression ratio, high working efficiency, and energy consumption of traditional compressors ranging from 18% to 30%. Under the same size, the working efficiency of traditional compressors is 3-6 times.

[0019] 2. The present invention utilizes rotation for compression, and each rotation is performed three times. Each cylinder can adjust the air pressure individually. Air is inhaled when rotating to the air inlet, and compression is completed when rotating into the semicircular inner cavity, and high-pressure exhaust is performed. The maximum compression ratio can reach 70 bar. With the support of high compression ratio and simple structure, this product is more energy-saving and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 The invention explodes Figure 1 ;

[0023] Figure 4 The invention explodes Figure 2 ;

[0024] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 6 It is a linear schematic diagram of the operation of the present invention.

[0026] Figure numerals: 1. pump body; 11. semicircular inner cavity; 12. air hole; 13. adjusting plate; 14. sealing spring; 15. sealing plate; 2. front end cover; 21. swing cavity; 3. rear end cover; 4. eccentric wheel; 5. eccentric shaft; 51. swing plate; 6. rotor; 61. stabilizing gear; 62. sealing sleeve; 7. partial cover; 8. oil seal. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Embodiment 1, as Figure 1-Figure 6 As shown, a novel rotor air compressor comprises a pump body 1, the interior of the pump body 1 is composed of three groups of semicircular inner cavities 11, an eccentric shaft 5 is rotatably installed inside the pump body 1, and a rotor 6 is fixedly installed on the outer side of the eccentric shaft 5, and the rotor 6 is in an 8-shape;

[0029] Three groups of air holes 12 are provided in a ring shape on the outer side of the pump body 1, and the three groups of air holes 12 are respectively connected to the three groups of semicircular inner cavities 11. The outer sides of the air holes 12 are connected to inlet and exhaust valves. When the rotor 6 completely enters the semicircular inner cavity 11, there is a compression space between the end point of the rotor 6 and the semicircular inner cavity 11.

[0030] The electronic motor is connected to the eccentric shaft 5. The electronic motor drives the 8-shaped rotor 6 to rotate inside the three semicircular cavities 11 through the eccentric shaft 5. When one end of the rotor 6 rotates out of a group of semicircular cavities 11, the inlet and outlet valves are opened, and the semicircular cavities 11 inhale air through the corresponding air holes 12. When the other end rotates into the semicircular cavities 11, the gas is compressed in the compression space, and the inlet and outlet valves are opened for high-pressure exhaust. Since the rotor 6 is designed in an 8-shaped shape, the inside of the pump body 1 is three semicircular, and the compression is performed by rotation. Each rotation is performed three times. At the same time, by changing the flow rate of the inlet and outlet valves, the air pressure of each cylinder can be adjusted separately, and the application range is wide. The current structure of the present invention is more suitable for air compression. The maximum compression ratio can be 70 bar after actual measurement. With the support of a high compression ratio and a simple structure, the product is more energy-saving and efficient. At the same time, the present invention has a simple structure, a simple processing and production process, a high compression ratio, and a high working efficiency, which is 18% to 30% of the energy consumption of traditional compressors. The working efficiency is 3-6 times that of traditional compressors of the same size;

[0031] The rotor air compressor of the present invention thoroughly improves the operating efficiency of the original compressor, reduces the size of the compressor, reduces the number of compressor parts, and achieves a significant energy-saving effect.

[0032] Embodiment 2, based on the above embodiment, further includes that a sealing sleeve 62 is provided on the outer side of the rotor 6. Through this design, the sealing performance between the rotor 6 and the semicircular inner cavity 11 can be improved.

[0033] Furthermore, a sealing sheet 15 is installed at the joint of the semicircular inner cavity 11 . Through this design, the sealing performance between the rotor 6 and the semicircular inner cavity 11 is further improved.

[0034] Embodiment 3, based on the above embodiment, further includes: a slide groove is provided at the joint of the semicircular inner cavity 11, an adjusting piece 13 is fixedly installed inside the slide groove, a sealing piece 15 is slidably connected in the slide groove, and a sealing spring 14 is provided between the sealing piece 15 and the adjusting piece 13. Through the arrangement of this embodiment, the sealing piece 15 can always be in close contact with the rotor 6, so that the three semicircular inner cavities 11 can be stably independent of each other.

[0035] Embodiment 4, on the basis of the above embodiment, further includes: a countersunk hole is opened on the outer side of the pump body 1, the countersunk hole is connected with the slide groove, the internal sealing thread of the countersunk hole is connected with a bolt, and the bolt is rotatably installed on the adjusting plate 13, which is easy to install, and the contact pressure between the sealing plate 15 and the rotor 6 can be adjusted by rotating the bolt. When the spring force decays, the sealing effect can be ensured by adjusting the adjusting plate 13.

[0036] Embodiment 5, on the basis of the above embodiment, further includes: the pump body 1 is designed with open ends, a front end cover 2 is fixedly installed on the front end of the pump body 1, a rear end cover 3 is fixedly installed on the back of the pump body 1, an eccentric wheel 4 is rotatably installed inside the rear end cover 3, an eccentric shaft 5 is fixedly installed on the eccentric wheel 4, an axial hole is opened inside the front end cover 2, and the eccentric shaft 5 passes through the axial hole.

[0037] Furthermore, a first bearing is arranged between the eccentric wheel 4 and the rear end cover 3 , and a second bearing is arranged between the eccentric shaft 5 and the shaft hole.

[0038] During assembly, first install the eccentric wheel 4 in the bearing 1, rotate the eccentric wheel 4 and install it on the rear end cover 3, then install the rotor 6 on the eccentric shaft 5, and put the rotor 6 into the pump body 1, then install the eccentric shaft 5 on the eccentric wheel 4, and finally put the front end cover 2 and the rear end cover 3 at both ends of the pump body 1 and fix them with bolts to complete the assembly of the pump body 1, which is easy to assemble.

[0039] Embodiment 6, based on the above embodiment, further includes that an oil seal 8 is provided between the eccentric shaft 5 and the shaft hole to improve the sealing performance.

[0040] Embodiment 7, based on the above embodiment, further includes: a partial cover 7 is fixedly installed between the front end cover 2 and the pump body 1, a gear hole is opened inside the partial cover 7, and a stabilizing gear 61 is arranged at the front end of the rotor 6, and the stabilizing gear 61 is meshed with the gear hole to improve the rotation stability of the rotor 6.

[0041] During assembly, first install the eccentric wheel 4 in the bearing 1, rotate the eccentric wheel 4 and install it on the rear end cover 3, then put the rotor 6 into the pump body 1, then stick the eccentric cover 7 to the front end of the pump body 1, make the eccentric shaft 5 pass through the eccentric cover 7 and the rotor 6, and install it on the eccentric wheel 4, finally put the front end cover 2 and the rear end cover 3 at both ends of the pump body 1 and fix them with bolts to complete the assembly of the pump body 1, which is easy to assemble.

[0042] Embodiment 8, on the basis of the above embodiment, further includes: a swing cavity 21 is arranged between the front end cover 2 and the eccentric cover 7, a swing piece 51 is arranged on the outer side of the eccentric shaft 5, and the swing piece 51 is located in the swing cavity 21. Due to the eccentric rotation of the rotor 6, the operating stability of the rotor air compressor can be improved by balancing the swing piece 51.

[0043] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A novel rotor air compressor, comprising a pump body (1), characterized in that: The interior of the pump body (1) is composed of three groups of semicircular inner cavities (11), an eccentric shaft (5) is rotatably mounted inside the pump body (1), a rotor (6) is fixedly mounted on the outside of the eccentric shaft (5), and the rotor (6) is in an 8-shape; The pump body (1) is provided with three groups of air holes (12) in a circular shape on the outside. The three groups of air holes (12) are respectively connected to the three groups of semicircular inner cavities (11). The outsides of the air holes (12) are connected to air inlet and outlet valves. When the rotor (6) completely enters the semicircular inner cavity (11), a compression space exists between the end point of the rotor (6) and the semicircular inner cavity (11).

2. A novel rotor air compressor according to claim 1, characterized in that: A sealing sleeve (62) is provided on the outer side of the rotor (6).

3. A novel rotor air compressor according to claim 2, characterized in that: A sealing sheet (15) is installed at the joint of the semicircular inner cavity (11).

4. A novel rotor air compressor according to claim 3, characterized in that: A slide groove is provided at the joint of the semicircular inner cavity (11), an adjusting piece (13) is fixedly installed inside the slide groove, the sealing piece (15) is slidably connected in the slide groove, and a sealing spring (14) is provided between the sealing piece (15) and the adjusting piece (13).

5. A novel rotor air compressor according to claim 4, characterized in that: The pump body (1) is provided with a countersunk hole on the outside, the countersunk hole is connected with the slide groove, and the internal sealing thread of the countersunk hole is connected with a bolt, which is rotatably mounted on the adjustment plate (13).

6. A novel rotor air compressor according to claim 1, characterized in that: The pump body (1) is designed to be open at both ends. A front end cover (2) is fixedly mounted on the front end of the pump body (1), a rear end cover (3) is fixedly mounted on the back of the pump body (1), an eccentric wheel (4) is rotatably mounted inside the rear end cover (3), the eccentric shaft (5) is fixedly mounted on the eccentric wheel (4), an axial hole is opened inside the front end cover (2), and the eccentric shaft (5) passes through the axial hole.

7. A novel rotor air compressor according to claim 6, characterized in that: A first bearing is arranged between the eccentric wheel (4) and the rear end cover (3), and a second bearing is arranged between the eccentric shaft (5) and the shaft hole.

8. A novel rotor air compressor according to claim 7, characterized in that: An oil seal (8) is provided between the eccentric shaft (5) and the shaft hole.

9. A novel rotor air compressor according to claim 8, characterized in that: A side cover (7) is fixedly installed between the front end cover (2) and the pump body (1), a gear hole is provided inside the side cover (7), and a stabilizing gear (61) is provided at the front end of the rotor (6), and the stabilizing gear (61) is meshed with the gear hole.

10. A novel rotor air compressor according to claim 9, characterized in that: A swing cavity (21) is provided between the front end cover (2) and the eccentric cover (7), a swing piece (51) is provided on the outer side of the eccentric shaft (5), and the swing piece (51) is located in the swing cavity (21).

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