CN116906328B

CN116906328B - Integral type swing rotor formula pump body subassembly

Info

Publication number: CN116906328B
Application number: CN202310997102.4A
Authority: CN
Inventors: 雒应学
Original assignee: Guangzhou Deshan Cnc Technology Co ltd
Current assignee: Guangzhou Deshan Cnc Technology Co ltd
Priority date: 2023-08-08
Filing date: 2023-08-08
Publication date: 2024-03-15
Anticipated expiration: 2043-08-08
Also published as: CN116906328A

Abstract

The invention provides an integrated swing rotor type pump body assembly with a good lubricating effect in a pump body. The invention provides an integrated swing rotor type pump body assembly, which comprises a crankshaft structure, a swing rotor, a cylinder, a main bearing and an auxiliary bearing, wherein the swing rotor comprises a rolling ring and a swing rod, the rolling ring and the swing rod are integrally formed, the crankshaft structure, the rolling ring and the cylinder are sequentially arranged from inside to outside, the swing rotor and the cylinder are positioned between the main bearing and the auxiliary bearing, a rotor mounting groove is arranged on the cylinder, one end of the swing rod, which is far away from the rolling ring, is arranged in the rotor mounting groove, the inner surface of the rolling ring is provided with an inner diameter oil groove extending along the axial direction of the swing rotor, the crankshaft structure comprises a central oil hole and an eccentric oil guiding groove which are mutually communicated, and the swing rod radially moves in the rotor mounting groove along the cylinder in the working process, so that the eccentric oil guiding groove is communicated with or closed with the inner diameter oil groove of the rolling ring.

Description

Integral type swing rotor formula pump body subassembly

Technical Field

The invention relates to the technical field of compressors, in particular to an integrated swing rotor type pump body assembly.

Background

Rotary compressors are widely used in the temperature conditioning industry, such as air conditioning, refrigerators, heat pumps, etc., with their excellent combination of properties in the current refrigeration industry. The rotary compressor in the prior art mainly includes a wobble rotor type compressor and a rolling rotor type compressor.

Rolling rotor compressors have the advantage of low cost, but their sliding vane cannot be fully and reliably contact sealed with the outer diameter of the rolling rotor (piston), resulting in increased leakage in the compressor. And under the condition of the same outer diameter size, the spring is used as the initial starting pressure, the spring structure occupies the radial size, so that the radial size of the compressor is increased, meanwhile, the structure of the cylinder is complex, the contact surface between the sliding vane groove of the cylinder and the sliding vane is greatly reduced due to the spring hole, and the sliding vane groove is more easily worn.

The swing rotor type compressor comprises a piston and sliding vane integrated structure and a fixed sliding vane structure. The piston and sliding vane integrated structure is that the sliding vane and the piston are integrated into a swinging rotor, and the fixed sliding vane type structure is that the sliding vane and the piston are hinged. The piston slide plate integrated structure has better sealing performance relative to the fixed slide plate type structure. However, the integral structure of the piston and the sliding vane is sliding friction among all parts in the pump body in the swinging operation process, and enough lubricating oil is required to lubricate a friction surface in the high-speed operation of thousands of revolutions per minute, otherwise, the abrasion is increased, and the sealing effect of the pump body is affected.

Disclosure of Invention

Based on this, it is necessary to provide an integrated swing rotor type pump body assembly having a good lubrication effect inside the pump body.

The invention provides an integrated swing rotor type pump body assembly which comprises a crankshaft structure, a swing rotor, a cylinder, a main bearing and an auxiliary bearing, wherein the swing rotor comprises a rolling ring and a swing rod, the rolling ring and the swing rod are integrally formed, the crankshaft structure, the rolling ring and the cylinder are sequentially arranged from inside to outside, the swing rotor and the cylinder are positioned between the main bearing and the auxiliary bearing, a rotor mounting groove is formed in the cylinder, one end of the swing rod, which is far away from the rolling ring, is arranged in the rotor mounting groove, the inner surface of the rolling ring is provided with an inner diameter oil groove extending along the axial direction of the swing rod, the crankshaft structure comprises a central oil hole and an eccentric oil guide groove which are mutually communicated, and in the working process of the integrated swing rotor type compressor, the swing rod moves in the rotor mounting groove along the radial direction of the cylinder, so that the eccentric oil guide groove is communicated with or is closed with the inner diameter oil groove of the rolling ring.

Preferably, a sliding guide column is arranged in the rotor mounting groove, the sliding guide column is provided with an outer cylindrical surface and an inner mounting surface, the outer cylindrical surface of the sliding guide column is matched with the rotor mounting groove, the inner mounting surface of the sliding guide column is matched with the side surface of the swing rod, one surface of the swing rod, which is close to the main bearing, is an upper end surface, one surface, which is close to the auxiliary bearing, is a lower end surface, an upper oil guiding groove is arranged on the upper end surface of the swing rod, a lower oil guiding groove is arranged on the lower end surface, an inner oil guiding groove is arranged on the inner mounting surface of the sliding guide column, and the inner oil guiding groove, the upper oil guiding groove, the inner oil guiding groove and the lower oil guiding groove are sequentially communicated.

Preferably, the upper oil guiding groove comprises a first upper oil groove and a second upper oil groove which are communicated with each other, the second upper oil groove transversely penetrates through the first upper oil groove, the first upper oil groove extends from a position close to the tail part of the swing rod to penetrate through the inner surface of the rolling ring to be communicated with the inner diameter oil groove, and the inner oil guiding groove of the sliding guide column comprises a first inner oil groove and a second inner oil groove; two ends of a second oil groove of the swing rod penetrate through two sides of the swing rod respectively and are communicated with upper ports of the first inner oil groove and the second inner oil groove;

the lower oil guiding groove comprises a first lower oil groove and a second lower oil groove which are communicated with each other, the first lower oil groove extends from a position close to the tail of the swing rod to a position close to the inner surface of the rolling ring, the second lower oil groove transversely penetrates through the first lower oil groove, and two ends of the second lower oil groove respectively penetrate through two sides of the swing rod and are communicated with lower ports of the first inner oil groove and the second inner oil groove.

Preferably, one surface of the swing rod, which is close to the main bearing, is an upper end surface, a first upper oil groove is formed in the upper end surface of the swing rod, and the first upper oil groove extends from a position close to the tail part of the swing rod to penetrate through the inner surface of the rolling ring and is communicated with the inner diameter oil groove.

Preferably, the crankshaft structure comprises a shaft main body and an eccentric shaft, the central oil hole is positioned in the shaft main body, the eccentric shaft is provided with an eccentric oil outlet which penetrates through the wall of the eccentric shaft in the radial direction, the eccentric oil outlet is communicated with the central oil hole, the outer wall of the eccentric shaft is provided with an eccentric oil guiding groove, and the eccentric oil guiding groove is communicated with the eccentric oil outlet.

Preferably, the auxiliary bearing sequentially comprises a mounting hole, an exhaust groove and a bearing main body from inside to outside, wherein the mounting hole and the exhaust groove are arranged at intervals, a crankshaft is mounted in the mounting hole, the bearing main body is provided with an exhaust channel communicated with the exhaust groove, and the exhaust channel is provided with a discharge port for discharging gas.

Preferably, the auxiliary bearing is further provided with a sealing main body, the sealing main body is located between the mounting hole and the exhaust groove, the exhaust groove surrounds the outer portion of the sealing main body, the crankshaft structure comprises a shaft main body and an eccentric shaft, the eccentric shaft surrounds the outer portion of the shaft main body, the central oil hole is formed in the shaft main body, one end, close to the auxiliary bearing, of the shaft main body is provided with an oil inlet capable of introducing lubricating oil into the central oil hole, one side, close to the auxiliary bearing, of the eccentric shaft is provided with a thrust surface, one side, close to the eccentric shaft, of the sealing main body is provided with a sealing surface, the sealing surface is matched with the thrust surface, and the lower end of the shaft main body is inserted into the auxiliary bearing.

Preferably, the discharge port is located at an end surface of the bearing body near the upper bearing, or the discharge port is located at an outer end surface of the bearing body.

Preferably, the swing rod can divide a cavity between the rolling ring and the cylinder into an air suction cavity and a compression cavity, the cylinder is provided with an air suction hole, the air suction hole can be communicated with the air suction cavity, the rolling ring of the swing rotor is provided with an air outlet, and the air outlet is communicated with the compression cavity;

and an exhaust groove is formed in the auxiliary bearing, and the exhaust groove is communicated with an exhaust port of the rolling ring or is closed in the working process of the integrated swing rotor type compressor.

Preferably, the crankshaft comprises a shaft main body and an eccentric shaft, the central oil hole is positioned in the shaft main body, the eccentric oil guide groove is formed in the outer wall of the eccentric shaft, an exhaust notch is formed in the eccentric shaft, an exhaust cavity is formed between the exhaust notch and the rolling ring and the auxiliary bearing, the exhaust notch and the eccentric oil guide groove are arranged at intervals in the axial direction of the crankshaft, and in the working process of the integral swing rotor compressor, the compression cavity, an exhaust port of the rolling ring, the exhaust cavity and the exhaust groove can be sequentially communicated to form an exhaust channel.

The design of new lubrication oil circuit in this patent can guarantee that the pump body of this structure is in the compressor structure of high backpressure or low back bent axle, and effective steady operation in a long time can not lead to the compressor card to die because of lubrication inadequately or thereby lead to the leakproofness of compression chamber to descend because of the oil film to influence the energy efficiency.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the invention.

FIG. 1 is a schematic cross-sectional view of an integrated swing rotor pump assembly according to the present invention;

FIG. 2 is an enlarged schematic view of the portion "A" in FIG. 1;

FIG. 3 is a schematic diagram of a structure of a body type swing rotor pump assembly provided by the present invention;

FIG. 4 is a schematic cross-sectional view of portion A-A of FIG. 3;

FIG. 5 is a schematic view of a sliding guide post according to the present invention;

FIG. 6 is a schematic view of a first angle structure of a swing rotor according to the present invention;

fig. 7 is a schematic view of a second angle structure of the swing rotor according to the present invention;

FIG. 8 is a first angular structure schematic diagram of a crankshaft structure according to the present invention;

FIG. 9 is a schematic view of a second angle structure of the crankshaft structure provided by the present invention;

FIG. 10 is a schematic view of a secondary bearing structure provided by the present invention;

FIG. 11 is a schematic view of an exhaust passage of an integrated swing rotor pump assembly provided by the present invention;

FIG. 12 is a schematic view of the pump body assembly when the crankshaft rotates to the 0 degree position;

FIG. 13 is a schematic view of the pump body assembly when the crankshaft rotates to the 180 degree position;

FIG. 14 is a schematic view of the pump body assembly when the crankshaft is rotated to the exhaust port ready-to-close position;

FIG. 15 is a schematic diagram of the pump body assembly during rotation of the crankshaft to exhaust port connection;

FIG. 16 is a schematic view of the pump body assembly when the crankshaft rotates and the exhaust port is closed and exhaust is completed;

FIG. 17 is a schematic diagram of the pump body assembly when the crankshaft rotates to the eccentric oil guide groove to start to be communicated;

FIG. 18 is a schematic diagram of a pump body assembly when the crankshaft rotates to the eccentric oil guiding groove to finish oil feeding;

fig. 19 is an enlarged schematic view of a portion "B" in fig. 18.

Detailed Description

In order that the invention may be understood more fully, the invention will be described with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to and integrated with the other element or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the invention provides an integrated swing rotor type pump body assembly, which comprises a crankshaft structure 1, a swing rotor 2, a cylinder 3, a main bearing 4 and a secondary bearing 5, wherein the swing rotor 2 comprises a rolling ring 22 and a swing rod 21, the rolling ring 22 and the swing rod 21 are integrally formed, the crankshaft structure 1, the rolling ring 22 and the cylinder 4 are sequentially arranged from inside to outside, the swing rotor 2 and the cylinder 3 are positioned between the main bearing 4 and the secondary bearing 5, a rotor mounting groove 31 is arranged on the cylinder 3, one end of the swing rod 21 far away from the rolling ring 22 is arranged in the rotor mounting groove 31, an inner diameter oil groove 221 extending along the axial direction of the swing ring 22 is formed on the inner surface of the rolling ring 22, the crankshaft structure 1 comprises a central oil hole 11 and an eccentric oil guide groove 12 which are mutually communicated, and the swing rod 21 radially moves along the cylinder 3 in the rotor mounting groove 31 so that the eccentric oil guide groove 12 is communicated with or closed with the inner diameter oil groove 221 of the rolling ring 22 in the working process. The central oil hole 11 is internally provided with a spiral oil pumping blade, and when the crankshaft 1 rotates, lubricating oil in a compressor oil sump can be pumped into the high position of the central oil hole 11.

According to the integrated swing rotor type pump body assembly provided by the invention, in the working process, the central oil hole 11 pumps lubricating oil into the crankshaft structure 1, and in the radial movement process of the swing rod 21 in the rotor mounting groove 31, the eccentric oil guide groove 12 of the crankshaft structure 1 is communicated with the inner diameter oil groove 221 of the rolling ring 22, so that the lubricating oil of the crankshaft structure 1 is led into the inner diameter oil groove 221 of the rolling ring 22 to lubricate the matching surface of the crankshaft structure 1 and the swing rotor 2, and the better lubricating effect of the matching surface of the crankshaft structure 1 and the swing rotor 2 is ensured.

Referring to fig. 3 and 5, in the preferred embodiment, a sliding guide post 6 is disposed in the rotor mounting groove 31, the sliding guide post 6 has an outer cylindrical surface 61 and an inner mounting surface 62, the outer cylindrical surface 61 of the sliding guide post 6 is matched with the rotor mounting groove 31, the inner mounting surface 62 of the sliding guide post 6 is matched with the side surface of the swing link 21, and the inner mounting surface 62 of the sliding guide post 6 is provided with an inner oil guiding groove 621.

Referring to fig. 5 to 6, the inner oil guide groove 621 includes a first inner oil groove 621a and a second inner oil groove 621b.

Referring to fig. 2 and fig. 6-7, the side of the swing rod 21, which is close to the main bearing 4, is an upper end surface 211, the side of the swing rod 21, which is close to the auxiliary bearing, is a lower end surface 212, an upper oil guiding groove 213 is arranged on the upper end surface 211 of the swing rod 21, a lower oil guiding groove 214 is arranged on the lower end surface 212, and the inner diameter oil groove 221, the upper oil guiding groove 213, the inner oil guiding groove 621 and the lower oil guiding groove 214 are sequentially communicated. In the operating state of the compressor, the lubricating oil in the crankshaft structure 1 may enter the inner diameter oil groove 221 of the rolling ring 22, the inner diameter oil groove 221 may be used for oil storage, the lubricating oil of the inner diameter oil groove 221 may flow into the upper oil guiding groove 213, and the lubricating oil may be stored for enhanced lubrication and reduced wear while forming an oil path. The lubricating oil in the upper oil guide groove 213 is guided into the lower oil guide groove 214 through the inner oil guide groove 621 of the sliding guide column 6, so that both side surfaces of the swing rod 21 can be effectively lubricated, abrasion between the swing rod 21 and the sliding guide column 6 is reduced, and abrasion of the upper end surface and the lower end surface of the swing rod 21 can be reduced.

Referring to fig. 6 to 7, the upper oil guiding groove 213 includes a first upper oil groove 213a and a second upper oil groove 213b which are communicated with each other, and the second upper oil groove 213b transversely penetrates the first upper oil groove 213a. The first upper oil groove 213a of the swing rod 21 extends from a position near the tail of the swing rod 21 to penetrate through the inner surface of the rolling ring 22 and is communicated with the inner diameter oil groove 221. So that the lubricating oil can enter the upper end face of the swing rod 21 for lubrication.

Referring to fig. 5-6, the lower oil guiding groove 214 includes a first lower oil groove 214a and a second lower oil groove 241b that are mutually communicated, the first lower oil groove 214a extends from a position near the tail of the swing rod to a position near the inner surface of the rolling ring 22, the second lower oil groove 241b transversely penetrates through the first lower oil groove 214a, and two ends of the second lower oil groove 241b respectively penetrate through two sides of the swing rod 21 and are communicated with lower ports of the first inner oil groove and the second inner oil groove. Two ends of the second upper oil groove 213b penetrate through two sides of the swing rod 21 respectively and are communicated with upper ports of the first inner oil groove 621a and the second inner oil groove 621b.

Referring to fig. 8-9, the crankshaft structure 1 includes a shaft main body 101 and an eccentric shaft 102, a central oil hole 11 is provided on the shaft main body 101, an eccentric oil outlet hole 13 penetrating through the wall of the eccentric shaft 102 in the radial direction is provided on the eccentric shaft 102, the eccentric oil outlet hole 13 is communicated with the central oil hole 11, an eccentric oil guiding groove 12 is provided on the outer wall of the eccentric shaft 102, and the eccentric oil guiding groove 12 is communicated with the eccentric oil outlet 13. The shaft main body 101 comprises a main shaft 101b and a secondary shaft 101a, oil path channels communicated with the inside of the main shaft 101b and the secondary shaft 101a are central oil holes 11, and the bottom of the secondary shaft 101a far from the main bearing is provided with an oil inlet for introducing lubricating oil into the central oil holes 11.

Referring to fig. 17 to 19, when the crankshaft 1 is rotated to a set angle, the eccentric oil guide groove 12 of the eccentric shaft 102 may communicate with the inner diameter oil groove 221 provided in the swing rotor rolling ring 22, and guide lubricating oil into the inner diameter oil groove 221 while also effectively lubricating the rolling friction surfaces of the inner diameter of the swing rotor 2 and the outer diameter of the eccentric shaft 102 to reduce wear. The eccentric oil guiding groove 12 is arranged along the reverse direction of the rotation direction of the crankshaft by a certain angle by taking the side eccentric oil outlet 13 as a starting point, the longer the conduction time of each turn of the angle is, the more the total oil guiding is, the shorter the conduction time of the angle is, the less the total oil guiding is, so that different lubrication requirements can be controlled and regulated through the angle, for example, the larger contact surface of the pump body part of the compressor with larger displacement is larger in oil requirement, and the angle can be enlarged at the moment.

Referring to fig. 9 and 11, in a preferred embodiment, the eccentric shaft 102 has a vent gap 14, a vent chamber 140 is formed between the vent gap 14 and the rolling ring 22 and the auxiliary bearing 5, and the vent gap 14 and the eccentric oil guiding groove 12 are spaced apart in the axial direction of the crankshaft 1 to secure a sealed distance and ensure no air leakage.

Referring to fig. 9 to 11, in a preferred embodiment, the sub-bearing 5 includes, in order from inside to outside, a mounting hole 51, an exhaust groove 52, and a bearing main body 53, the mounting hole 51 and the exhaust groove 52 being provided at intervals, the crankshaft 1 being mounted in the mounting hole 51, the bearing main body 53 being provided with an exhaust passage 55 communicating with the exhaust groove 52, the exhaust passage 55 having an exhaust port (55 a or 55 b) for exhausting gas.

Referring to fig. 10-11, in the preferred embodiment, the auxiliary bearing 5 is further provided with a sealing body 54, the sealing body 54 is located between the mounting hole 51 and the exhaust groove 52, the exhaust groove 52 surrounds the sealing body 54, a thrust surface 1021 is provided on a side of the sealing body 54 close to the auxiliary bearing, a sealing surface 541 is provided on a side of the sealing body 54 close to the eccentric shaft, and the sealing surface 541 is matched with the thrust surface 1021. The lower end of the shaft body is inserted into the mounting hole 51 of the sub bearing 5. In this embodiment, the sub-bearing 5 is provided with the mounting hole 51 for mounting the shaft body, and thus mounting can achieve more stable operation of the compressor.

Referring to fig. 10-11, in one embodiment, the discharge port 55a is located at an end surface of the bearing main body 53 near the upper bearing 4, and in another embodiment, the discharge port 55b is located at an outer end surface of the bearing main body 53.

Referring to fig. 6-7, in a preferred embodiment, the rolling ring 22 of the swing rotor 2 is provided with an exhaust port 222.

Referring to fig. 12-16, in a preferred embodiment, the swing rod 21 may divide the cavity between the rolling ring 22 and the cylinder 3 into a suction cavity 71 and a compression cavity 72, the cylinder 3 is provided with a suction hole 32 for sucking the low-temperature refrigerant, the suction hole 32 may be communicated with the suction cavity 71, the exhaust port 22 is communicated with the compression cavity 72, and the exhaust groove 52 is communicated with or closed by the exhaust port 222 of the rolling ring during operation of the integral swing rotor type compressor.

Referring to fig. 11, in the preferred embodiment, the outer diameter direction of the exhaust chamber 14 may be in communication with the exhaust port 222 provided on the swing rotor 2, and the bottom surface direction may be connected with the annular air guide groove 52 provided on the sub-bearing 5 to form an exhaust passage together.

In the operation process of the integrated swing rotor compressor provided by the invention, the compression chamber 72, the exhaust port 222 of the rolling ring 22, the exhaust chamber 14 and the exhaust groove 52 can be sequentially communicated to form an exhaust passage.

Referring to fig. 12, when the crankshaft 1 is rotated to 0 degree, a sealed space is not formed in the cavity, and the pressure is balanced to be a low pressure area.

Referring to fig. 13, when the crankshaft rotates to the 180 degree position, the exhaust port 222 is closed and is not in communication with the exhaust slot 52. The fan-shaped exhaust notch 14 on the eccentric shaft 102 and the exhaust groove 52 on the auxiliary bearing 5 are always kept on at any rotation angle, and the connection area of the fan-shaped exhaust notch and the exhaust groove is larger than the area of the exhaust port 222 on the swing rotor 2 so as to ensure smooth and non-resistance exhaust.

Referring to fig. 15, when the crankshaft rotates to a certain angle, the exhaust port 222 is communicated with the exhaust groove 52.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. The utility model provides an integral type swing rotor formula pump body subassembly, its characterized in that includes bent axle structure, swing rotor, cylinder, main bearing and auxiliary bearing, swing rotor includes rolling ring and pendulum rod, rolling ring and pendulum rod integrated into one piece, bent axle structure, rolling ring and cylinder set gradually from inside to outside, swing rotor and cylinder are located between main bearing and the auxiliary bearing, be provided with the rotor mounting groove on the cylinder, the pendulum rod is kept away from the one end of rolling ring is installed in the rotor mounting groove, the rolling ring internal surface has the internal diameter oil groove along its axial extension, the bent axle structure includes the central oilhole and the eccentric oil groove that lead of intercommunication, the swing rod is in during operation rotor mounting groove is followed the radial removal of cylinder makes eccentric oil groove with the internal diameter oil groove of rolling ring communicates or closes;

the crankshaft structure comprises a shaft main body and an eccentric shaft, wherein the central oil hole is positioned in the shaft main body, an eccentric oil outlet hole penetrating through the eccentric shaft wall in the radial direction is formed in the eccentric shaft, the eccentric oil outlet hole is communicated with the central oil hole, the eccentric oil guide groove is formed in the outer wall of the eccentric shaft, and the eccentric oil guide groove is communicated with the eccentric oil outlet hole; the eccentric oil guide groove is reversely arranged along the rotation direction of the crankshaft by taking the side eccentric oil outlet as a starting point.

2. The integrated swing rotor pump assembly according to claim 1, wherein a sliding guide column is arranged in the rotor mounting groove, the sliding guide column is provided with an outer cylindrical surface and an inner mounting surface, the outer cylindrical surface of the sliding guide column is matched with the rotor mounting groove, the inner mounting surface of the sliding guide column is matched with the side surface of the swing rod, one surface of the swing rod, which is close to the main bearing, is an upper end surface, one surface, which is close to the auxiliary bearing, is a lower end surface, an upper oil guiding groove is arranged on the upper end surface of the swing rod, a lower oil guiding groove is arranged on the lower end surface, an inner oil guiding groove is arranged on the inner mounting surface of the sliding guide column, and the inner diameter oil groove, the upper oil guiding groove, the inner oil guiding groove and the lower oil guiding groove are sequentially communicated.

3. The split swing rotor pump assembly according to claim 2, wherein said upper oil guiding groove comprises a first upper oil groove and a second upper oil groove in communication with each other, said second upper oil groove extending transversely through said first upper oil groove, said first upper oil groove extending from a position proximate said swing stem tail to communicate with said inner diameter oil groove through said inner race surface, said inner oil guiding groove of said sliding guide post comprising a first inner oil groove and a second inner oil groove; two ends of a second upper oil groove of the swing rod penetrate through two sides of the swing rod respectively and are communicated with upper ports of the first inner oil groove and the second inner oil groove;

4. The integrated swing rotor pump assembly according to claim 1, wherein a face of the swing rod adjacent to the main bearing is an upper end face, the upper end face of the swing rod is provided with a first upper oil groove, and the first upper oil groove extends from a position adjacent to the tail of the swing rod to penetrate through the inner surface of the rolling ring and is communicated with the inner diameter oil groove.

5. The integrated swing rotor pump assembly according to claim 1, wherein the sub-bearing comprises a mounting hole, an exhaust groove and a bearing body from inside to outside in sequence, the mounting hole and the exhaust groove are arranged at intervals, a crankshaft is mounted in the mounting hole, the bearing body is provided with an exhaust passage communicated with the exhaust groove, and the exhaust passage is provided with an exhaust port for exhausting gas.

6. The integrated swing rotor pump assembly according to claim 5, wherein said auxiliary bearing is further provided with a seal body, said seal body being located between said mounting hole and said exhaust groove, said exhaust groove surrounding said seal body, said crankshaft structure including a shaft body and an eccentric shaft, said eccentric shaft surrounding said shaft body, said central oil hole being provided in said shaft body, an end of said shaft body adjacent to said auxiliary bearing having an oil inlet for introducing lubricating oil into said central oil hole, said eccentric shaft having a thrust surface on a side of said eccentric shaft adjacent to said auxiliary bearing, said seal body having a seal surface on a side of said seal body adjacent to said eccentric shaft, said seal surface being engaged with said thrust surface, a lower end of said shaft body being inserted into said auxiliary bearing.

7. The integrated swing rotor pump assembly according to claim 5, wherein said discharge port is located on an end surface of the bearing body adjacent to said bearing body or said discharge port is located on an outer end surface of said bearing body.

8. The integrated swing rotor pump assembly according to claim 1, wherein the swing rod divides a cavity between the rolling ring and the cylinder into an air suction cavity and a compression cavity, the cylinder is provided with an air suction hole, the air suction hole is communicated with the air suction cavity, the rolling ring of the swing rotor is provided with an air outlet, and the air outlet is communicated with the compression cavity;

9. The integrated swing rotor pump assembly according to claim 8, wherein the crankshaft comprises a shaft main body and an eccentric shaft, the central oil hole is located in the shaft main body, the eccentric oil guide groove is formed in the outer wall of the eccentric shaft, the eccentric shaft is provided with an exhaust notch, an exhaust cavity is formed between the exhaust notch and the rolling ring and the auxiliary bearing, the exhaust notch and the eccentric oil guide groove are arranged at intervals in the axial direction of the crankshaft, and during operation of the integrated swing rotor compressor, the compression cavity, an exhaust port of the rolling ring, the exhaust cavity and the exhaust groove are sequentially communicated to form an exhaust channel.