An integrated differential air compressor

Abstract

The present invention provides an integrated slip air compressor, which relates to the technical field of air compressors. The integrated slip air compressor of the present invention integrates the valve assembly into the inner rotor unit, has low manufacturing precision and low cost; there is no change in the center of mass, small vibration and low noise; the compression efficiency is high, and a higher compression efficiency can be achieved at a lower rotation speed. The rotation speed can be reduced while achieving the same compression efficiency, and the rotation speed is reduced to further reduce vibration. Among them, taking the first polygon as a quadrilateral and the second polygon as a pentagon as an example, there are four air intakes and compression and exhaust for every rotation of the motor. Under the condition of the same volume, compared with the two-cylinder piston compressor on the market (the motor inhales and compresses and exhausts twice for every rotation of the motor), this can reduce the speed, the rotation speed of the motor is reduced, and the vibration and noise are reduced accordingly.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, and in particular to an integrated slip air compressor. Background Art

[0002] Air compressors are commonly used power equipment in industrial and mining enterprises. They convert mechanical energy into gas pressure energy through the operation of the prime mover, which is used to drive the operation of various pneumatic equipment. Air compressors generate a lot of noise during operation. In order to effectively reduce the noise, noise transmission is generally controlled, such as by using noise reduction, sound insulation, and sound absorption. Reducing the vibration of the air compressor itself to reduce the noise generation will fundamentally solve the noise problem of the air compressor.

[0003] At present, most air compressors have changes in center of mass. For example, piston air compressors compress air through the reciprocating motion of the piston. The center of mass of the piston is reciprocating. No matter how balanced it is, vibration will occur, and vibration will inevitably cause noise. Among them, the only one that does not have a change in center of mass during operation is the screw air compressor. However, the processing precision requirements of screw air compressors are high and the cost is also high. Summary of the invention

[0004] The object of the present invention is to provide an integrated slip air compressor to reduce vibration during the operation of the air compressor and thus reduce noise generation.

[0005] In order to achieve the above object, the technical solutions adopted by the present invention are as follows:

[0006] An integrated slip air compressor comprises a support seat, a drive unit, a drive shaft, an inner rotor unit, an outer rotor unit, a gear and a gear ring;

[0007] The driving unit is arranged on the supporting seat, and the driving unit is used to drive the driving shaft to rotate, and the driving shaft is rotatably connected to the supporting seat via a bearing;

[0008] The inner rotor unit comprises an inner rotor, a sliding vane, a first elastomer, a rotor end face sealing assembly and a valve assembly. The cross section of the outer contour of the inner rotor is a first polygon with central symmetry. Each corner of the first polygon extends radially outward. The side surface of the inner rotor is provided with a sliding vane slot at the end of each corner. The sliding vane slot extends radially along the inner rotor. The inner end of the sliding vane is slidably connected to the sliding vane slot. The first elastomer is arranged between the inner end of the sliding vane and the bottom of the sliding vane slot. The rotor end face sealing assembly is arranged on both side end surfaces of the inner rotor. The valve assembly comprises a valve plate, an intake valve plate and an exhaust valve plate. The valve plate is respectively provided with a first intake hole and a first exhaust hole. The intake valve plate is arranged on the outer side of the valve plate. The intake valve plate covers the The first air inlet hole is provided, and the exhaust valve sheet is arranged on the inner side of the valve plate, and the exhaust valve sheet covers the first exhaust hole; a first assembly hole is provided in the central position of the inner rotor along the axial direction, a valve groove is provided at the side of the inner rotor at the position between the two corners, a second air inlet hole connected to the first assembly hole is provided at the bottom of the valve groove, a valve sheet groove is provided at the bottom of the valve groove, and a second exhaust hole connected to the first assembly hole is provided in the valve sheet groove; the valve assembly is assembled in the valve groove, the second air inlet hole matches the first air inlet hole in position and size, the exhaust valve sheet is located in the valve sheet groove, and the second exhaust hole matches the first exhaust hole in position and size; the second air inlet hole is connected to the air inlet channel, and the second exhaust hole is connected to the exhaust channel;

[0009] The outer rotor unit comprises an outer rotor, a first bearing seat and a second bearing seat. The cross section of the inner cavity of the outer rotor is a second polygon having one more angle than the first polygon and being centrally symmetrical, and each angle of the second polygon extends radially outward. The left and right ends of the outer rotor are respectively provided with a first bearing seat and a second bearing seat, and the first bearing seat and the second bearing seat are both rotatably connected to the support seat via bearings.

[0010] The drive shaft is assembled with the inner rotor unit and the gear, the gear ring is assembled on the first bearing seat or the second bearing seat, the inner rotor unit is located in the inner cavity of the outer rotor, the rotation axis of the inner rotor unit is eccentrically arranged with the rotation axis of the outer rotor unit, the sliding vane can contact the circumferential side wall of the inner cavity of the outer rotor, the rotor end face sealing assembly contacts the end face side wall of the inner cavity of the outer rotor, the inner rotor unit divides the inner cavity of the outer rotor into air chamber spaces with the same number of first polygon angles, the gear meshes with the gear ring, and the transmission ratio of the gear to the gear ring is equal to the ratio of the first polygon angle number to the second polygon angle number.

[0011] Preferably, it also includes an intake sealing ring and a connecting sleeve, the right end of the gear is provided with a transition sleeve extending outward; the intake sealing ring is assembled on the support seat, and the connecting sleeve is assembled on one side of the first assembly hole; the drive shaft passes through the intake sealing ring, the transition sleeve, the gear and the connecting sleeve in sequence, the transition sleeve is nested in the intake sealing ring, and the connecting sleeve abuts against the left end face of the gear; an intake channel is provided on the support seat, an annular intake groove is provided on the circumferential inner wall of the intake sealing ring, a first hole connected to the intake groove is provided on the circumferential side wall of the intake sealing ring, and a second hole is provided on the circumferential side wall of the transition sleeve. A first air intake gap is left between the assembly holes of the transition sleeve and the gear and the drive shaft, and a second air intake gap is left between the connecting sleeve and the drive shaft; the air intake channel is connected to the first hole, the second hole matches the position and size of the air intake groove, the second hole is connected to the air intake groove, the first air intake gap is connected to the second air intake gap, the second air intake gap is connected to the inner cavity of the connecting sleeve, and the inner cavity of the connecting sleeve is connected to the second air intake hole; the air intake channel, the first hole, the air intake groove, the second hole, the first air intake gap, the second air intake gap and the inner cavity of the connecting sleeve connected in sequence constitute the air intake channel.

[0012] Preferably, it also includes a gasket and a nut, the inner wall of the connecting sleeve is provided with a step, the gasket is located on the step, the position of the drive shaft located in the connecting sleeve is provided with an external thread, and the nut assembles the external thread and the gasket.

[0013] Preferably, the drive shaft is assembled in the first assembly hole; an exhaust channel is opened in the axial direction on the terminal end face of the drive shaft, and a third hole connected to the exhaust channel is opened on the circumferential side wall of the drive shaft, and the third hole matches the second exhaust hole in position and size; the third hole and the exhaust channel connected in sequence constitute the exhaust channel.

[0014] Preferably, the circumferential outer wall of the drive shaft is provided with sealing grooves on both the left and right sides of the third hole, and a sealing ring is mounted in the sealing groove and fits with the inner wall of the first mounting hole.

[0015] Preferably, the support seat includes a left support seat and a right support seat, the drive unit is assembled between the left support seat and the right support seat, and the drive shaft is rotatably connected to the left support seat and the right support seat via bearings respectively.

[0016] Preferably, the support seat also includes an end cover, which is assembled on the left end of the left support seat, and a bearing that cooperates with the first bearing seat is arranged on the end cover; a second assembly hole is opened in the end cover, and the end of the drive shaft passes through the second assembly hole, and the end of the drive shaft is rotatably connected to the end cover via the bearing.

[0017] Preferably, it also includes an exhaust cover, which is provided with an exhaust interface, the exhaust cover is assembled with the end cover, the exhaust cover is sealed and connected to the end cover, the second assembly hole is sealed and connected to the end of the drive shaft, a closed chamber is formed between the exhaust cover, the end of the drive shaft and the end cover, and the exhaust interface is connected to the closed chamber.

[0018] Preferably, the rotor end face sealing assembly includes a second elastomer and a sealing ring, a first sealing groove is provided at the edge positions of the end faces on both sides of the inner rotor, and a second sealing groove is provided at the end faces on both sides of the sliding vane, the first sealing groove and the second sealing groove are spliced ​​into an annular sealing groove, and the second elastomer and the sealing ring are sequentially assembled in the annular sealing groove from the inside to the outside, and the sealing ring contacts the end face side wall of the inner cavity of the outer rotor.

[0019] Preferably, the driving unit is configured as a motor, and the driving shaft is configured as an output shaft of the motor.

[0020] The beneficial technical effects of the present invention are:

[0021] The integrated slip air compressor of the present invention integrates the valve assembly into the inner rotor unit, has low manufacturing precision and low cost; has no change in the center of mass, has small vibration and low noise; has high compression efficiency, can achieve higher compression efficiency at a lower rotation speed, and can reduce the rotation speed while achieving the same compression efficiency, and the reduced rotation speed can further reduce vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of an integrated slip air compressor according to an embodiment of the present invention;

[0023] Figure 2 An axial cross-sectional view of an integrated slip air compressor according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0025] Figure 4 is an exploded view of the rotor unit in an embodiment of the present invention, Figure 4 The lower right part of the middle inner rotor is cut away, and the upper intake valve piece is cut away;

[0026] Figure 5 This is a front view of the inner rotor in an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Middle BB section view;

[0028] Figure 7 This is a front view of a valve assembly according to an embodiment of the present invention;

[0029] Figure 8 for Figure 7 Middle CC section view;

[0030] Fig. 9 is a three-dimensional diagram of an outer rotor unit according to an embodiment of the present invention;

[0031] Fig.10 is an axial cross-sectional view of an outer rotor unit according to an embodiment of the present invention;

[0032] Fig.11 This is a diagram showing the coordination of the outer rotor and the inner rotor unit at a certain moment in an embodiment of the present invention;

[0033] Fig.12 The diagram is a schematic diagram of the air intake and air compression cycle during the operation of the integrated slip air compressor according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the present invention will be described more comprehensively with reference to the accompanying drawings, in which some but not all embodiments will be shown. In fact, the various embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments described herein; rather, these embodiments are provided so that the present invention meets applicable legal requirements.

[0035] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "back" and the like indicate directions or positional relationships based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In an embodiment of the present invention, an integrated differential air compressor is provided. Figures 1 to 11 shown.

[0037] An integrated slip air compressor comprises a support base (a left support base 11 and a right support base 12), a drive unit, a drive shaft, an inner rotor unit 20, an outer rotor unit 30, a gear 41 and a gear ring 42.

[0038] A driving unit is arranged on the support seat, and the driving unit is used to drive the driving shaft to rotate, and the driving shaft is rotatably connected to the support seat via the bearing 6.

[0039] Specifically, the support base includes a left support base 11 and a right support base 12, the driving unit is set as a motor, the motor includes a stator 71 and a rotor 72, and the driving shaft is set as an output shaft 73 assembled as a whole with the rotor 72 of the motor. The stator 71 of the motor is assembled between the left support base 11 and the right support base 12, and the output shaft 73 is respectively connected to the left support base 11 and the right support base 12 through the bearing 6. A fan 74 is set at the right end of the output shaft 73, so that when the output shaft 73 rotates, the fan 74 is driven to rotate to dissipate heat from the motor.

[0040] The inner rotor unit 20 includes an inner rotor 21, a sliding vane 22, a first elastic body 23, a rotor end face sealing assembly and a valve assembly. The cross section of the outer contour of the inner rotor 21 is a first polygon, the first polygon is centrally symmetrical, and each corner of the first polygon extends radially outward. In this embodiment, the first polygon is set to be a quadrilateral.

[0041] The side surface of the inner rotor 21 is provided with a sliding vane slot 211 at the end of each corner, and the sliding vane slot 211 extends along the radial direction of the inner rotor 21. The inner end of the sliding vane 22 is slidably connected to the sliding vane slot 211, and a first elastic body 23 is arranged between the inner end of the sliding vane 22 and the bottom of the sliding vane slot 211. The first elastic body 23 is made of elastic or flexible material. Under the elastic action of the first elastic body 23, the sliding vane 22 can move slightly in the radial direction along the sliding vane slot 211, so that the sliding vane 22 keeps in dynamic contact with the circumferential side wall of the inner cavity of the outer rotor.

[0042] The rotor end face sealing assembly is arranged on both side end faces of the inner rotor 21, and the rotor end face sealing assembly includes a second elastic body 25 and a sealing ring 26. The first sealing notch 212 is provided at the edge of both side end faces of the inner rotor 21, and the second sealing notch 221 is provided on both side end faces of the sliding vane 22. The first sealing notch 212 and the second sealing notch 221 are spliced ​​into an annular sealing notch, and the second elastic body 25 and the sealing ring 26 are sequentially assembled in the annular sealing notch from inside to outside, and the sealing ring 26 contacts the end face side wall of the inner cavity of the outer rotor. The second elastic body 25 and the sealing ring 26 are made of elastic or flexible materials, and under the elastic action of the second elastic body 25, the sealing ring 26 can be slightly extended and contracted with the slight movement of the sliding vane 22, so that the sealing ring 26 keeps in dynamic contact with the end face side wall of the inner cavity of the outer rotor.

[0043] The valve assembly includes a valve plate 51, an intake valve plate 52 and an exhaust valve plate 53. The valve plate 51 is respectively provided with a first intake hole 511 and a first exhaust hole 512. The intake valve plate 52 is arranged on the outer side of the valve plate 51, and the intake valve plate 52 covers the first intake hole 511. The exhaust valve plate 53 is arranged on the inner side of the valve plate 51, and the exhaust valve plate 53 covers the first exhaust hole 512.

[0044] A first assembly hole 213 is axially provided at the center of the inner rotor 21, a valve groove 214 is provided on the side of the inner rotor 21 at a position between two corners, a second air inlet 215 communicating with the first assembly hole 213 is provided at the bottom of the valve groove 214, a valve plate groove 216 is provided at the bottom of the valve groove 214, and a second exhaust hole 217 communicating with the first assembly hole 213 is provided in the valve plate groove 216.

[0045] The valve assembly is assembled in the valve groove 214, the second air inlet 215 matches the first air inlet 511 in position and size, and the connection between the second air inlet 215 and the first air inlet 511 is sealed by a sealing ring, the exhaust valve plate 53 is located in the valve plate groove 216, the second exhaust hole 217 matches the first exhaust hole 512 in position and size, and the connection between the second exhaust hole 217 and the first exhaust hole 512 is sealed by a sealing ring. The second air inlet 215 is connected to an air inlet channel, and the second air inlet 215 is inhaled by the air inlet channel. The second exhaust hole 217 is connected to an exhaust channel, and the gas exhausted by the second exhaust hole 217 continues to be exhausted from the exhaust channel.

[0046] The outer rotor unit 30 includes an outer rotor 31, a first bearing seat 32 and a second bearing seat 33. The cross section of the inner cavity of the outer rotor 31 is a second polygon. The second polygon has one more angle than the first polygon and is centrally symmetrical. Each angle of the second polygon extends radially outward. In this embodiment, the second polygon is set as a pentagon. The left and right ends of the outer rotor 31 are respectively provided with a first bearing seat 32 and a second bearing seat 33. The first bearing seat 32 and the second bearing seat 33 are both rotatably connected to the left and right ends of the left support seat 11 through bearings 6. Among them, the left end of the left support seat 11 is equipped with an end cover 13, and a bearing 6 that matches the first bearing seat 32 is set on the inner end surface of the end cover 13.

[0047] The drive shaft (output shaft 73 ) is equipped with the inner rotor unit 20 and the gear 41 .

[0048] The right end of the gear 41 is provided with a transition sleeve 411 extending outward. The air intake seal ring 14 is assembled on the left support seat 11, and the connecting sleeve 27 is assembled on one side of the first assembly hole 213. The drive shaft passes through the air intake seal ring 14, the transition sleeve 411, the gear 41 and the connecting sleeve 27 in sequence. The transition sleeve 411 is nested in the air intake seal ring 14, and the right end of the connecting sleeve 27 abuts against the left end face of the gear 41. The left support seat 11 is provided with an air intake channel 111, the circumferential inner wall of the air intake seal ring 14 is provided with an annular air intake groove 141, the circumferential side wall of the air intake seal ring 14 is provided with a first hole 142 connected with the air intake groove 141, the circumferential side wall of the transition sleeve 411 is provided with a second hole 412, a first air intake gap 81 is left between the assembly hole of the transition sleeve 411 and the gear 41 and the drive shaft, and a second air intake gap 82 is left between the connecting sleeve 27 and the drive shaft. Among them, the air intake channel 111 is connected with the first hole 142, the second hole 412 matches the position and size of the air intake groove 141, the second hole 412 is connected with the air intake groove 141, the first air intake gap 81 is connected with the second air intake gap 82, the second air intake gap 82 is connected with the inner cavity of the connecting sleeve 27, and the inner cavity of the connecting sleeve 27 is connected with the second air intake hole 215. The air intake channel 111, the first hole 142, the air intake groove 141, the second hole 412, the first air intake gap 81, the second air intake gap 82 and the inner cavity of the connecting sleeve 27, which are connected in sequence, constitute the above-mentioned air intake channel.

[0049] The drive shaft is assembled in the first assembly hole 213, and the end surface of the drive shaft is provided with an exhaust channel 731 along the axial direction, and the circumferential side wall of the drive shaft is provided with a third hole 732 connected to the exhaust channel 731, and the third hole 732 matches the position and size of the second exhaust hole 217. The third hole 732 and the exhaust channel 731 connected in sequence constitute the above-mentioned exhaust channel.

[0050] The circumferential outer wall of the drive shaft is provided with sealing grooves on both sides of the third hole 732, and a sealing ring is installed in the sealing groove to fit the inner wall of the first assembly hole 213. In this way, the sealing around the connection position between the second exhaust hole 217 and the third hole 732 is achieved.

[0051] The inner wall of the connecting sleeve 27 is provided with a step 271 , the gasket 28 is located on the step 271 , the position of the driving shaft located inside the connecting sleeve is provided with an external thread, the nut 29 is assembled with the external thread, and the nut 29 is pressed onto the gasket 28 .

[0052] The gear ring 42 is mounted on the first bearing seat 32 or the second bearing seat 33 .

[0053] Specifically, in this embodiment, the outer rotor 31, the first bearing seat 32 and the second bearing seat 33 are split structures, the left end of the outer rotor 31 is assembled and connected to the first bearing seat 32, the left end of the outer rotor 31 is provided with a left sealing groove 311, and the left sealing groove 311 is provided with a left sealing ring 341, and the left sealing ring 341 is used to achieve sealing between the left end of the outer rotor 31 and the first bearing seat 32. Among them, a through hole is provided in the middle position of the first bearing seat 32, so that the drive shaft (output shaft 73) can pass through the first bearing seat 32.

[0054] The right end of the outer rotor 31 is assembled with a sealing disk 35, and a right sealing groove 312 is provided at the right end of the outer rotor 31. A right sealing ring 342 is assembled in the right sealing groove 312. The right sealing ring 342 is used to achieve sealing between the right end of the outer rotor 31 and the sealing disk 35. A gear ring 42 is assembled between the sealing disk 35 and the second bearing seat 33.

[0055] A through hole is provided in the middle of the sealing disk 35 and the second bearing seat 33 , so that the driving shaft (output shaft 73 ) can pass through the sealing disk 35 and the second bearing seat 33 .

[0056] The inner rotor unit 20 is located in the inner cavity of the outer rotor 31, and the rotation axis W1 of the inner rotor unit 20 is eccentrically arranged with respect to the rotation axis W2 of the outer rotor unit 30, and the eccentric distance is L. The vane 22 can contact the circumferential side wall of the inner cavity of the outer rotor 31, and the rotor end face sealing assembly contacts the end face side wall of the inner cavity of the outer rotor 31. The inner rotor unit 20 divides the inner cavity of the outer rotor 31 into four air chamber spaces with the same number as the first polygon angle number. Among them, the end face side wall of the inner cavity of the outer rotor 31 is specifically the inner end face side wall of the first bearing seat 32 and the inner end face side wall of the sealing disk 35. The gear 41 meshes with the ring gear 42, and the transmission ratio of the gear 41 to the ring gear 42 is equal to the ratio of the first polygon angle number to the second polygon angle number. In this way, when the gear 41 drives the ring gear 42 to rotate, the inner rotor 21 and the outer rotor 31 also rotate in the same proportion.

[0057] A second assembly hole 131 is provided in the middle of the end cover 13, and the end of the drive shaft passes through the second assembly hole 131. The end of the drive shaft is rotatably connected to the end cover 13 via the bearing 6. In this way, the exhaust passage can be easily led out.

[0058] The exhaust cover 15 is provided with an exhaust interface 151, the exhaust cover 15 is assembled with the end cover 13, the exhaust cover 15 and the end cover 13 are sealed and connected via a sealing ring, the second assembly hole 131 is dynamically sealed and connected with the end of the drive shaft via a sealing ring, a closed chamber is formed between the exhaust cover 15, the end of the drive shaft and the end cover 13, and the exhaust interface 151 is connected with the closed chamber. In this way, it is convenient to connect the suction and exhaust system through the exhaust interface 151.

[0059] like Fig.11As shown, when the inner rotor unit 20 and the outer rotor 31 rotate in the W3 direction to a certain moment, due to the eccentric distance L between the inner rotor unit 20 and the outer rotor 31, the two are divided into four air chamber spaces of M1, M2, M3, and M4, and the corresponding four sides of the inner rotor unit 20 are at the N1, N2, N3, and N4 positions. At this time, the M3 air chamber space is the largest and the M1 air chamber space is the smallest. When the inner rotor unit 20 continues to rotate in the W3 direction, the M3 air chamber space gradually decreases and is in a compression state, and the M1 air chamber space gradually increases and is in an intake state.

[0060] During the gradual increase of the M1 air chamber space, the airflow passes through the air intake channel 111, the first hole 142, the air intake groove 141, the second hole 412, the first air intake gap 81, the second air intake gap 82 and the inner cavity of the connecting sleeve 27 along the Q1 direction, and enters the M1 air chamber space through the second air intake hole 215, the first air intake hole 511 and the air intake valve plate 52, until the M1 air chamber space becomes the M3 air chamber space and the air intake ends. During the gradual decrease of the M3 air chamber space, the airflow is discharged along the first exhaust hole 512, the exhaust valve plate 53, the third hole 732, the exhaust channel 731 and the exhaust interface 151. Each side of N1, N2, N3, and N4 has the same valve assembly. Every time the motor rotor 72 rotates one circle, the above four sides perform an intake and exhaust process. In this way, a continuous compressed gas is formed, such as Fig.12 shown.

[0061] So far, the present embodiment has been described in detail in conjunction with the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the integrated slip air compressor of the present invention. The integrated slip air compressor of the present invention integrates the valve assembly into the inner rotor unit 20, has low manufacturing precision and low cost; there is no change in the center of mass, small vibration and low noise; the compression efficiency is high, and a higher compression efficiency can be achieved at a lower speed. The speed can be reduced while achieving the same compression efficiency, and the speed is reduced to further reduce vibration. Among them, taking the first polygon in the present embodiment as a quadrilateral and the second polygon as a pentagon as an example, there are four suction and compression exhaust for each rotation of the motor. Under the same volume, compared with the dual-cylinder piston compressor on the market (the motor inhales and compresses and exhausts twice for each rotation of the motor), the speed can be reduced in this way. For example, the dual-cylinder piston compressor has a speed of 1350 rpm, and the integrated slip air compressor of the present invention can reduce the speed to about 700 rpm. The speed of the motor is reduced, and the vibration and noise are reduced accordingly.

[0062] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated slip air compressor, characterized in that: It includes a support seat, a drive unit, a drive shaft, an inner rotor unit, an outer rotor unit, a gear and a gear ring; The driving unit is arranged on the supporting seat, and the driving unit is used to drive the driving shaft to rotate, and the driving shaft is rotatably connected to the supporting seat via a bearing; The inner rotor unit comprises an inner rotor, a sliding vane, a first elastomer, a rotor end face sealing assembly and a valve assembly. The cross section of the outer contour of the inner rotor is a first polygon with central symmetry. Each corner of the first polygon extends radially outward. The side surface of the inner rotor is provided with a sliding vane slot at the end of each corner. The sliding vane slot extends radially along the inner rotor. The inner end of the sliding vane is slidably connected to the sliding vane slot. The first elastomer is arranged between the inner end of the sliding vane and the bottom of the sliding vane slot. The rotor end face sealing assembly is arranged on both side end surfaces of the inner rotor. The valve assembly comprises a valve plate, an intake valve plate and an exhaust valve plate. The valve plate is respectively provided with a first intake hole and a first exhaust hole. The intake valve plate is arranged on the outer side of the valve plate. The intake valve plate covers the The first air inlet hole is provided, and the exhaust valve sheet is arranged on the inner side of the valve plate, and the exhaust valve sheet covers the first exhaust hole; a first assembly hole is provided in the central position of the inner rotor along the axial direction, a valve groove is provided at the side of the inner rotor at the position between the two corners, a second air inlet hole connected to the first assembly hole is provided at the bottom of the valve groove, a valve sheet groove is provided at the bottom of the valve groove, and a second exhaust hole connected to the first assembly hole is provided in the valve sheet groove; the valve assembly is assembled in the valve groove, the second air inlet hole matches the first air inlet hole in position and size, the exhaust valve sheet is located in the valve sheet groove, and the second exhaust hole matches the first exhaust hole in position and size; the second air inlet hole is connected to the air inlet channel, and the second exhaust hole is connected to the exhaust channel; The outer rotor unit comprises an outer rotor, a first bearing seat and a second bearing seat. The cross section of the inner cavity of the outer rotor is a second polygon having one more angle than the first polygon and being centrally symmetrical, and each angle of the second polygon extends radially outward. The left and right ends of the outer rotor are respectively provided with a first bearing seat and a second bearing seat, and the first bearing seat and the second bearing seat are both rotatably connected to the support seat via bearings. The drive shaft is assembled with the inner rotor unit and the gear, the gear ring is assembled on the first bearing seat or the second bearing seat, the inner rotor unit is located in the inner cavity of the outer rotor, the rotation axis of the inner rotor unit is eccentrically arranged with the rotation axis of the outer rotor unit, the sliding vane can contact the circumferential side wall of the inner cavity of the outer rotor, the rotor end face sealing assembly contacts the end face side wall of the inner cavity of the outer rotor, the inner rotor unit divides the inner cavity of the outer rotor into air chamber spaces with the same number of first polygon angles, the gear meshes with the gear ring, and the transmission ratio of the gear to the gear ring is equal to the ratio of the first polygon angle number to the second polygon angle number.

2. The integrated slip air compressor according to claim 1, characterized in that: It also includes an intake sealing ring and a connecting sleeve, the right end of the gear is provided with a transition sleeve extending outward; the intake sealing ring is assembled on the support seat, and the connecting sleeve is assembled on one side of the first assembly hole; the drive shaft passes through the intake sealing ring, the transition sleeve, the gear and the connecting sleeve in sequence, the transition sleeve is nested in the intake sealing ring, and the connecting sleeve abuts against the left end face of the gear; an intake channel is provided on the support seat, an annular intake groove is provided on the circumferential inner wall of the intake sealing ring, a first hole connected to the intake groove is provided on the circumferential side wall of the intake sealing ring, a second hole is provided on the circumferential side wall of the transition sleeve, and the transition sleeve is provided on the circumferential side wall of the transition sleeve. A first air intake gap is left between the assembly holes of the ferry sleeve and the gear and the drive shaft, and a second air intake gap is left between the connecting sleeve and the drive shaft; the air intake channel is connected to the first hole, the second hole matches the position and size of the air intake groove, the second hole is connected to the air intake groove, the first air intake gap is connected to the second air intake gap, the second air intake gap is connected to the inner cavity of the connecting sleeve, and the inner cavity of the connecting sleeve is connected to the second air intake hole; the air intake channel, the first hole, the air intake groove, the second hole, the first air intake gap, the second air intake gap and the inner cavity of the connecting sleeve connected in sequence constitute the air intake channel.

3. An integrated slip air compressor according to claim 2, characterized in that: It also includes a gasket and a nut. The inner wall of the connecting sleeve is provided with a step, the gasket is located on the step, the position of the drive shaft located in the connecting sleeve is provided with an external thread, and the nut is assembled with the external thread and the gasket.

4. The integrated slip air compressor according to claim 1, characterized in that: The drive shaft is assembled in the first assembly hole; an exhaust channel is opened in the axial direction on the terminal end face of the drive shaft, and a third hole connected to the exhaust channel is opened on the circumferential side wall of the drive shaft, and the third hole matches the second exhaust hole in position and size; the third hole and the exhaust channel connected in sequence constitute the exhaust channel.

5. The integrated slip air compressor according to claim 4, characterized in that: The circumferential outer wall of the driving shaft is provided with sealing grooves on both the left and right sides of the third hole, and a sealing ring which is in contact with the inner wall of the first assembly hole is installed in the sealing groove.

6. The integrated slip air compressor according to claim 1, characterized in that: The support seat comprises a left support seat and a right support seat, the driving unit is assembled between the left support seat and the right support seat, and the driving shaft is rotatably connected to the left support seat and the right support seat via bearings respectively.

7. The integrated slip air compressor according to claim 6, characterized in that: The support seat also includes an end cover, which is assembled on the left end of the left support seat, and a bearing that cooperates with the first bearing seat is arranged on the end cover; a second assembly hole is opened in the end cover, and the end of the drive shaft passes through the second assembly hole, and the end of the drive shaft is rotatably connected to the end cover via the bearing.

8. The integrated slip air compressor according to claim 7, characterized in that: It also includes an exhaust cover, which is provided with an exhaust interface. The exhaust cover is assembled with the end cover, the exhaust cover is sealed and connected to the end cover, the second assembly hole is sealed and connected to the end of the drive shaft, a closed chamber is formed between the exhaust cover, the end of the drive shaft and the end cover, and the exhaust interface is connected to the closed chamber.

9. The integrated slip air compressor according to claim 1, characterized in that: The rotor end face sealing assembly includes a second elastomer and a sealing ring. First sealing grooves are provided at the edge positions of the end faces on both sides of the inner rotor, and second sealing grooves are provided at the end faces on both sides of the sliding vane. The first sealing groove and the second sealing groove are spliced ​​into an annular sealing groove. The second elastomer and the sealing ring are sequentially assembled in the annular sealing groove from the inside to the outside, and the sealing ring contacts the end face side wall of the inner cavity of the outer rotor.

10. The integrated slip air compressor according to claim 1, characterized in that: The driving unit is configured as a motor, and the driving shaft is configured as an output shaft of the motor.

Images