EP4671539A1

EP4671539A1 - PUMP BODY ARRANGEMENT, COMPRESSOR AND AIR CONDITIONING

Info

Publication number: EP4671539A1
Application number: EP23935161.2A
Authority: EP
Inventors: Xinai ZHANG; Ouxiang YANG; Yuanpei HU; Danfeng LIU; Shaopeng DING; Jia Xu
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2023-04-27
Filing date: 2023-12-22
Publication date: 2025-12-31
Also published as: EP4671539A4; WO2024221995A1; CN116816670A

Abstract

A pump body assembly, a compressor and an air conditioner are provided. The pump body assembly includes a crankshaft, a first flange, a second flange, a first cylinder, a second cylinder, a first roller, a second roller and a spacer plate, wherein a central oil hole is formed in the crankshaft, a first lateral oil hole in communication with the central oil hole is formed in a first eccentric portion in a radial direction, the first roller is provided with an oil path lubricating structure for lubricating cooperation end surfaces of the first roller and the spacer plate, and the first lateral oil hole may convey lubricating oil to the oil path lubricating structure; and/or, a second lateral oil hole in communication with the central oil hole is formed in a second eccentric portion in the radial direction, the second roller is provided with an oil path lubricating structure for lubricating cooperation end surfaces of the second roller and the spacer plate, and the second lateral oil hole may convey the lubricating oil to the oil path lubricating structure. The pump body assembly according to the present application may implement initiative oil supply between a roller end surface friction pair and a spacer plate end surface friction pair, effectively improve the lubrication effect of the roller end surface friction pair, and improve the reliability and performance of the compressor.

Description

The present application claims the priority of Chinese Patent Application 202310482513.X, filed on April 27, 2023 , and entitled "Pump Body Assembly, Compressor and Air Conditioner".

Technical Field

The present invention relates to the technical field of motors, and particularly relates to a pump body assembly, a compressor and a compressor .

Background

A pump body assembly of a conventional rolling rotor type double-cylinder compressor is mainly composed of parts and components such as a crankshaft, an upper silencer, an upper roller, an upper cylinder, a spacer plate, a lower cylinder, a lower roller, an upper flange, a lower flange and a lower silencer, an upper cylinder block and a lower cylinder block are formed by a mutual cooperation of parts of the pump body, each cylinder block is respectively divided by a sliding vane into a closed high-pressure chamber (an exhaust chamber) and a low-pressure chamber (an air suction chamber), and under a rotating drive of the crankshaft, the sliding vane reciprocates, so that the volumes of the high-pressure chamber and the low-pressure chamber are periodically changed, wherein the air in the upper cylinder block flows through the upper silencer from an exhaust port of the upper flange to be discharged from the pump body, and the air in the lower cylinder block flows through the lower silencer from an exhaust port of the lower flange and is discharged to the upper part of the pump body via a lower exhaust flow channel, thereby realizing periodic air suction and exhaust process of the compressor.
In the conventional rolling rotor type compressor, the crankshaft is provided with oil path structures such as a central oil hole, radial lateral oil holes (long and short-axis roots and upper and lower eccentric portions) and axial oil grooves (the upper and lower eccentric portions), and lubricating oil in an oil pool at a bottom of the compressor sequentially passes through the central oil hole, the lateral oil holes and the axial oil grooves to be pumped to the position of each friction pair of the pump body assembly, so as to lubricate the friction pair of the pump body.
Cooperation friction pairs between end surfaces of the roller, the spacer plate and the upper and lower flanges are mainly provided with lubricating oil paths by a lateral oil hole formed in an upper eccentric portion of the crankshaft, the axial oil grooves, a long-axis lateral oil hole and a short-axis lateral oil hole, lubricating oil supply and lubrication of end surface friction pairs are realized by a roller-spacer plate axial gap and a roller-flange axial gap. This method cannot well meet the lubrication requirements of a roller-spacer plate end surface friction pair and a roller-flange end surface friction pair, and especially for the roller-spacer plate friction pair, since the lubricating oil is only supplied by the lateral oil holes of the eccentric portions and the axial oil grooves, the oil supply capability is weaker. In an actual engineering invention process, especially in a case of a vacuum extreme operation of the compressor, a problem of abnormal wear of an end surface of the spacer plate often occurs, and when the operating condition is more severe, abnormal wear of the end surfaces of the flanges and the rollers are further caused, thus seriously affecting the reliability of the compressor. On the other hand, the friction between roller end surface cooperation friction pairs is relatively large, thus greatly affecting the energy efficiency of the compressor and being disadvantageous to the efficient design of the compressor.

Summary

The main objective of the present invention is to provide a pump body assembly, a compressor and an air conditioner, wherein the pump body assembly is able to implement initiative oil supply between an end surface friction pair of a roller and a spacer plate, effectively improve the lubrication effect of the roller end surface friction pair of a rotor compressor, and improve the reliability and performance of the compressor.
In order to achieve the above objective, according to one aspect of the present invention, provided is a pump body assembly, including a crankshaft, a first flange, a second flange, a first cylinder, a second cylinder, a first roller, a second roller and a spacer plate, wherein the crankshaft includes a first eccentric portion and a second eccentric portion, the first cylinder is sleeved outside the first eccentric portion, the first roller is in coaxial fit with the first eccentric portion, the second cylinder is sleeved outside the second eccentric portion, the second roller is in coaxial fit with the second eccentric portion, the spacer plate is located between the first cylinder and the second cylinder, the first cylinder and the second cylinder are located between the first flange and the second flange, a central oil hole is formed in the crankshaft, a first lateral oil hole in communication with the central oil hole is formed in the first eccentric portion in a radial direction, the first roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the first roller and the spacer plate, and the first lateral oil hole is able to convey lubricating oil to the oil path lubricating structure; and/or, a second lateral oil hole in communication with the central oil hole is formed in the second eccentric portion in a radial direction, the second roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the second roller and the spacer plate, and the second lateral oil hole is able to convey the lubricating oil to the oil path lubricating structure.
In some embodiments, the oil path lubricating structure includes at least one oil supply groove formed in an end surface of the first roller facing the spacer plate, the oil supply groove radially penetrates through an inner circle surface of the first roller, a first axial oil groove is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove is in communication with the at least one oil supply groove and the first lateral oil hole; and/or, the oil path lubricating structure includes at least one oil supply groove formed in an end surface of the second roller facing the spacer plate, the oil supply groove radially penetrates through an inner circle surface of the second roller, a second axial oil groove is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove is in communication with the at least one oil supply groove and the second lateral oil hole.
In some embodiments, the oil path lubricating structure includes a ring groove and at least one oil supply channel, the ring groove is formed in an inner circle surface of the first roller and is in communication with the first lateral oil hole, and each of the at least one oil supply channel extends axially from the ring groove and penetrates through an end surface of the first roller facing the spacer plate; and/or, the oil path lubricating structure includes a ring groove and at least one oil supply channel, the ring groove is formed in an inner circle surface of the second roller and is in communication with the second lateral oil hole, and each of the at least one oil supply channel extends axially from the ring groove and penetrates through the end surface of the second roller facing the spacer plate.
In some embodiments, the oil path lubricating structure includes a ring groove, an oil supply channel and an oil supply groove, the oil supply groove is in communication with the ring groove by the oil supply channel, the ring groove is formed in an inner circle surface of the first roller and is in communication with the first lateral oil hole, the oil supply channel extends axially from the ring groove to the oil supply groove, the oil supply groove is formed in an end surface of the first roller facing the spacer plate and penetrates through the inner circle surface of the first roller in the radial direction, a first axial oil groove is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove is in communication with the oil supply groove and the first lateral oil hole; and/or, the oil path lubricating structure includes a ring groove, an oil supply channel and an oil supply groove, the oil supply groove is in communication with the ring groove by means of the oil supply channel, the ring groove is formed in an inner circle surface of the second roller and is in communication with the second lateral oil hole, the oil supply channel extends axially from the ring groove to the oil supply groove, the oil supply groove is formed in an end surface of the second roller facing the spacer plate and penetrates through the inner circle surface of the second roller in the radial direction, a second axial oil groove is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove is in communication with the oil supply groove and the second lateral oil hole.
In some embodiments, the oil path lubricating structure includes oil supply grooves formed in two end surfaces of the first roller, the oil supply grooves radially penetrate through an inner circle surface of the first roller, a first axial oil groove is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove is in communication with the oil supply grooves in the two ends of the first roller and the first lateral oil hole; and/or, the oil path lubricating structure includes oil supply grooves formed in two end surfaces of the second roller, the oil supply grooves radially penetrate through an inner circle surface of the second roller, a second axial oil groove is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove is in communication with the oil supply grooves in the two ends of the second roller and the second lateral oil hole.
In some embodiments, the oil path lubricating structure includes an oil supply groove and an oil supply channel, the oil supply groove is formed in an end surface of the first roller facing the first flange and penetrates through an inner circle surface of the first roller in the radial direction, the oil supply channel penetrates through two end surfaces of the first roller in an axial direction and is in communication with the oil supply groove, a first axial oil groove is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove is in communication with the oil supply groove and the first lateral oil hole; and/or, the oil path lubricating structure includes an oil supply groove and an oil supply channel, the oil supply groove is formed in an end surface of the second roller facing the spacer plate and penetrates through an inner circle surface of the second roller in the radial direction, the oil supply channel penetrates through two end surfaces of the second roller in an axial direction and is in communication with the oil supply groove, a second axial oil groove is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove is in communication with the oil supply groove and the second lateral oil hole.
In some embodiments, the oil path lubricating structure includes oil supply grooves and an oil supply channel, the oil supply grooves are formed in two end surfaces of the first roller and penetrate through an inner circle surface of the first roller in the radial direction, the oil supply channel penetrates through the two end surfaces of the first roller in an axial direction and are in communication with the oil supply grooves, a first axial oil groove is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove is in communication with the oil supply grooves and the first lateral oil hole; and/or, the oil path lubricating structure includes oil supply grooves and an oil supply channel, the oil supply grooves are formed in two end surfaces of the second roller and penetrate through an inner circle surface of the second roller in the radial direction, the oil supply channel penetrates through the two end surfaces of the second roller in an axial direction and are in communication with the oil supply grooves, a second axial oil groove is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove is in communication with the oil supply grooves and the second lateral oil hole.
In some embodiments, the oil path lubricating structure includes a ring groove and at least one oil supply channel, the ring groove is formed in an inner circle surface of the first roller and is in communication with the first lateral oil hole, and the at least one oil supply channel is in communication with the ring groove and penetrates through two end surfaces of the first roller in an axial direction; and/or, the oil path lubricating structure includes a ring groove and at least one oil supply channel, the ring groove is formed in an inner circle surface of the second roller and is in communication with the second lateral oil hole, and the at least one oil supply channel is in communication with the ring groove and penetrates through two end surfaces of the second roller.
In some embodiments, the oil path lubricating structure includes a ring groove, oil supply grooves and an oil supply channel, the ring groove is formed in an inner circle surface of the first roller and is in communication with the first lateral oil hole, the oil supply grooves are formed in two end surfaces of the first roller and penetrate through the inner circle surface of the first roller in the radial direction, the oil supply channel penetrates through the two end surfaces of the first roller in an axial direction and are in communication with the oil supply grooves and the ring groove, a first axial oil groove is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove is in communication with the oil supply grooves and the first lateral oil hole; and/or, the oil path lubricating structure includes oil supply grooves and an oil supply channel, the oil supply grooves are formed in the two end surfaces of the second roller and penetrate through an inner circle surface of the second roller in the radial direction, the oil supply channel penetrates through the two end surfaces of the second roller in an axial direction and are in communication with the oil supply grooves, a second axial oil groove is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove is in communication with the oil supply grooves and the second lateral oil hole.
According to another aspect of the present invention, provided is a pump body assembly, including a crankshaft, a first flange, a second flange, a cylinder and a roller, wherein the crankshaft includes an eccentric portion, the eccentric portion is located in the cylinder, a central oil hole is formed in the crankshaft, a lateral oil hole in communication with the central oil hole is formed in the eccentric portion in a radial direction, the roller is sleeved outside the eccentric portion and is coaxially disposed with the eccentric portion, the roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the roller and the first flange and/or the roller and the second flange, and the lateral oil hole may convey lubricating oil to the oil path lubricating structure.
According to another aspect of the present invention, provided is a compressor, including the pump body assembly described above.
According to another aspect of the present invention, provided is an air conditioner, including the compressor described above.
By applying the technical solutions of the present invention, the pump body assembly includes a crankshaft, a first flange, a second flange, a first cylinder, a second cylinder, a first roller, a second roller and a spacer plate, wherein the crankshaft includes a first eccentric portion and a second eccentric portion, the first cylinder is sleeved outside the first eccentric portion, the first roller is in coaxial fit with the first eccentric portion, the second cylinder is sleeved outside the second eccentric portion, the second roller is in coaxial fit with the second eccentric portion, the spacer plate is located between the first cylinder and the second cylinder, the first cylinder and the second cylinder are located between the first flange and the second flange, a central oil hole is formed in the crankshaft, a first lateral oil hole in communication with the central oil hole is formed in the first eccentric portion in a radial direction, the first roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the first roller and the spacer plate, and the first lateral oil hole is able to convey lubricating oil to the oil path lubricating structure; and/or, a second lateral oil hole in communication with the central oil hole is formed in the second eccentric portion in a radial direction, the second roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the second roller and the spacer plate, and the second lateral oil hole is able to convey the lubricating oil to the oil path lubricating structure. According to the pump body assembly, the oil path lubricating structures for lubricating the mating end surfaces of the rollers and the spacer plate are disposed on the rollers, and the oil path lubricating structures are in communication with the central oil hole by the lateral oil holes, so that the lubricating oil is able to be conveyed to the oil path lubricating structures by the central oil hole and the lateral oil holes, to initiatively supply oil to end surface friction pairs of the rollers and the spacer plate, thereby ensuring sufficient oil supply between the friction pairs, and improving the problem of insufficient oil supply of end surfaces of the friction pairs under a high-frequency heavy working condition due to a fact that only a micron-level gap between roller end surface friction pairs is used as an oil supply path in an existing structure, thus reducing an effective contact area of the friction pairs and achieving the beneficial effects of reducing wear and consumption and improving the reliability and performance of the compressor while effectively improving the lubrication effect of the roller end surface friction pairs of a rotor compressor.

Brief Description of the Drawings

The drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention, and schematic embodiments of the present invention and descriptions thereof are used to explain the present invention, and do not constitute an improper limitation on the present invention. In the drawings:

Fig. 1 illustrates a sectional structure diagram of a pump body assembly according to an embodiment of the present invention;
Fig. 2 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 3 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 4 illustrates a partial enlarged view of a location A in Fig. 1;
Fig. 5 illustrates a sectional structure diagram of a pump body assembly according to an embodiment of the present invention;
Fig. 6 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 7 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 8 illustrates a partial enlarged view of a location A in Fig. 5;
Fig. 9 illustrates a sectional structure diagram of a pump body assembly according to an embodiment of the present invention;
Fig. 10 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 11 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 12 illustrates a partial enlarged view of a location A in Fig. 9;
Fig. 13 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 14 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 15 illustrates a partial enlarged view of an embodiment of a location A in Fig. 9;
Fig. 16 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 17 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 18 illustrates a partial enlarged view of an embodiment of a location A in Fig. 9;
Fig. 19 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 20 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 21 illustrates a partial enlarged view of an embodiment of a location A in Fig. 9;
Fig. 22 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 23 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 24 illustrates a partial enlarged view of an embodiment of a location A in Fig. 9;
Fig. 25 illustrates a schematic structure diagram of a second roller of a pump body assembly according to an embodiment of the present invention;
Fig. 26 illustrates a schematic diagram of a sectional structure of a second roller of a pump body assembly according to an embodiment of the present invention; and
Fig. 27 illustrates a partial enlarged view of an embodiment of a location A in Fig. 9.

The above drawings include the following reference signs:
1. crankshaft; 10. central oil hole; 11. first lateral oil hole; 12. first axial oil groove; 13. second lateral oil hole; 14. second axial oil groove; 15. long-axis lateral oil hole; 16. short-axis lateral oil hole; 21. first flange; 22. second flange; 31. first silencer; 32. second silencer; 41. first roller; 42. second roller; 51. first cylinder; 52. second cylinder; 6. spacer plate; 401. oil supply groove; 4011. first oil supply groove; 4012. second oil supply groove; 402. ring groove; 403. oil supply channel.

Detailed Description of the Embodiments

It should be noted that, in the case of no conflict, embodiments in the present invention and features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.
As shown in Fig. 1 to Fig. 27, according to an embodiment of the present invention, a pump body assembly includes a crankshaft 1, a first flange, a second flange, a first cylinder 51, a second cylinder 52, a first roller 41, a second roller 42 and a spacer plate 6, wherein the crankshaft 1 includes a first eccentric portion and a second eccentric portion, the first cylinder 51 is sleeved outside the first eccentric portion, the first roller 41 is in coaxial fit with the first eccentric portion, the second cylinder 52 is sleeved outside the second eccentric portion, the second roller 42 is in coaxial fit with the second eccentric portion, the spacer plate 6 is located between the first cylinder 51 and the second cylinder 52, the first cylinder 51 and the second cylinder 52 are located between the first flange and the second flange, a central oil hole 10 is formed in the crankshaft 1, a first lateral oil hole 11 in communication with the central oil hole 10 is formed in the first eccentric portion in a radial direction, the first roller 41 is provided with an oil path lubricating structure for lubricating mating end surfaces of the first roller 41 and the spacer plate 6, and the first lateral oil hole 11 is able to convey lubricating oil to the oil path lubricating structure; and/or, a second lateral oil hole 13 in communication with the central oil hole 10 is formed in the second eccentric portion in a radial direction, the second roller 42 is provided with an oil path lubricating structure for lubricating mating end surfaces of the second roller 42 and the spacer plate 6, and the second lateral oil hole 13 is able to convey the lubricating oil to the oil path lubricating structure.
According to the pump body assembly, the oil path lubricating structures for lubricating the mating end surfaces of the rollers and the spacer plate 6 are disposed on the rollers, and the oil path lubricating structures are in communication with the central oil hole 10 by the lateral oil holes, so that an initiative supply oil path of lubricating oil is able to be formed for roller end surface friction pairs, therefore the lubricating oil is able to be conveyed to the oil path lubricating structures by the central oil hole 10 and the lateral oil holes, to initiatively supply oil to end surface friction pairs of the rollers and the spacer plate 6, thereby ensuring sufficient oil supply between the friction pairs, and improving the problem of insufficient oil supply of end surfaces of the friction pairs under a high-frequency heavy working condition due to a fact that only a micron-level gap between the roller end surface friction pairs is used as an oil supply path in an existing structure, thus reducing an effective contact area of the friction pairs, and achieving the beneficial effects of reducing wear and consumption and improving the reliability and performance of the compressor while effectively improving the lubrication effect of the roller end surface friction pairs of a rotor compressor.
In the present embodiment, a first flange assembly includes the first flange 21 and a first silencer 31 cooperating with the first flange 21 to form a silencing structure, and a second flange assembly includes the second flange 22 and a second silencer 32 cooperating with the second flange 22 to form a silencing structure.
As shown in Fig. 1 to Fig. 4, in a first embodiment of the present invention, the oil path lubricating structure includes at least one oil supply groove 401 formed in an end surface of the first roller 41 facing the spacer plate 6, the oil supply groove 401 radially penetrates through an inner circle surface of the first roller 41, a first axial oil groove 12 is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove 12 is in communication with the oil supply groove 401 and the first lateral oil hole 11; and/or, the oil path lubricating structure includes at least one oil supply groove 401 formed in an end surface of the second roller 42 facing the spacer plate 6, the oil supply groove 401 radially penetrates through an inner circle surface of the second roller 42, a second axial oil groove 14 is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove 14 is in communication with the oil supply groove 401 and the second lateral oil hole 13.
In the present embodiment, there are a plurality of oil supply grooves 401 in the first roller 41, which are uniformly arranged at intervals in a circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on an end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply grooves 401 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on an end surface friction pair between the second roller 42 and the spacer plate 6.
Oil path lubricating structures formed by the plurality of oil supply grooves 401 are uniformly distributed in the circumferential direction, thereby avoiding a problem of generating a local oil film damage or a hard contact caused by an inclination of the roller resulting from uneven stress of the roller due to a fact that the uneven oil supply on the end surface of the roller leads to an uneven axial oil pressure of the roller.
In the present embodiment, the oil supply grooves 401 are respectively formed in the first roller 41 and the second roller 42, the oil supply grooves 401 of the first roller 41 are formed in an end surface of the first roller 41 cooperating with the spacer plate 6, the oil supply grooves 401 extend in an axial direction to the end surface of the first roller 41 cooperating with the spacer plate 6, and extend in the radial direction to the inner circle surface of the first roller 41, so that the lubricating oil is able to reach the end surface friction pair between the first roller 41 and the spacer plate 6 by the first lateral oil hole 11, the first axial oil groove 12 and the oil supply grooves 401, thereby realizing initiative oil supply of the end surface friction pair between the first roller 41 and the spacer plate 6, improving the lubrication effect of the end surface friction pair between the first roller 41 and the spacer plate 6, reducing the wear and consumption, and improving the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the first roller 41 and the spacer plate 6 is as follows: an oil pool at a bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the oil supply grooves of the first roller → the first roller-spacer plate end surface friction pair.
The oil supply grooves 401 of the second roller 42 are formed in an end surface of the second roller 42 cooperating with the spacer plate 6, the oil supply grooves 401 extend in the axial direction to the end surface of the second roller 42 cooperating with the spacer plate 6, and extend in the radial direction to the inner circle surface of the second roller 42, so that the lubricating oil is able to reach the end surface friction pair between the second roller 42 and the spacer plate 6 by the second lateral oil hole 13, the second axial oil groove 14 and the oil supply grooves 401 in the second roller 42, thereby realizing initiative oil supply of the end surface friction pair between the second roller 42 and the spacer plate 6, improving the lubrication effect of the end surface friction pair between the second roller 42 and the spacer plate 6, reducing the wear and consumption, and improving the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the first roller 41 and the spacer plate 6 is as follows: the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the oil supply grooves of the second roller → the second roller-spacer plate end surface friction pair.
As shown in Fig. 5 to Fig. 8, in a second embodiment of the present invention, the oil path lubricating structure includes a ring groove 402 and at least one oil supply channel 403, the ring groove 402 is formed in an inner circle surface of the first roller 41 and is in communication with the first lateral oil hole 11, and the oil supply channel 403 extends axially from the ring groove 402 and penetrates through an end surface of the first roller 41 facing the spacer plate 6; and/or, the oil path lubricating structure includes a ring groove 402 and at least one oil supply channel 403, the ring groove 402 is formed in an inner circle surface of the second roller 42 and is in communication with the second lateral oil hole 13, and the oil supply channel 403 extends axially from the ring groove 402 and penetrates through an end surface of the second roller 42 facing the spacer plate 6.
In one embodiment, there are a plurality of oil supply channels 403 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply channels 403 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the second roller 42 and the spacer plate 6.
In the present embodiment, the ring groove 402 is formed in the inner circle surface of the first roller 41, the ring groove 402 is formed corresponding to the first lateral oil hole 11 in an eccentric portion of the crankshaft 1 and is in communication with the first lateral oil hole 11, the first roller 41 is further provided with at least one oil supply channel 403, and the oil supply channel 403 extends axially from the ring groove 402 to the end surface friction pair between the first roller 41 and the spacer plate 6, so that the lubricating oil is able to reach the end surface friction pair between the first roller 41 and the spacer plate 6 by the first lateral oil hole 11, the ring groove 402 and the oil supply channel 403, thereby realizing initiative oil supply of the end surface friction pair between the first roller 41 and the spacer plate 6, improving the lubrication effect of the end surface friction pair between the first roller 41 and the spacer plate 6, reducing the wear and consumption, and improving the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the first roller 41 and the spacer plate 6 is as follows: the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the ring groove in the first roller → the oil supply channel of the first roller → the first roller-spacer plate end surface friction pair.
The ring groove 402 is formed in the inner circle surface of the second roller 42, the ring groove 402 is formed corresponding to the second lateral oil hole 13 in the eccentric portion of the crankshaft 1 and is in communication with the second lateral oil hole 13, the second roller 42 is further provided with at least one oil supply channel 403, and the oil supply channel 403 extends axially from the ring groove 402 to the end surface friction pair between the second roller 42 and the spacer plate 6, so that the lubricating oil is able to reach the end surface friction pair between the second roller 42 and the spacer plate 6 by the second lateral oil hole 13, the ring groove 402 and the oil supply channel 403, thereby realizing initiative oil supply of the end surface friction pair between the second roller 42 and the spacer plate 6, improving the lubrication effect of the end surface friction pair between the second roller 42 and the spacer plate 6, reducing the wear and consumption, and improving the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the second roller 42 and the spacer plate 6 is as follows: the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the ring groove in the second roller → the oil supply channel of the second roller → the second roller-spacer plate end surface friction pair.
As shown in Fig. 8 to Fig. 12, in a third embodiment of the present invention, the oil path lubricating structure includes a ring groove 402, oil supply channels 403 and oil supply grooves 401, the oil supply grooves 401 are in communication with the ring groove 402 by the oil supply channels 403, the ring groove 402 is formed in an inner circle surface of the first roller 41 and is in communication with the first lateral oil hole 11, the oil supply channels 403 extend axially from the ring groove 402 to the oil supply grooves 401, the oil supply grooves 401 are formed in the end surface of the first roller 41 facing the spacer plate 6 and penetrate through the inner circle surface of the first roller 41 in the radial direction, a first axial oil groove 12 is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove 12 is in communication with the oil supply grooves 401 and the first lateral oil hole 11; and/or, the oil path lubricating structure includes a ring groove 402, oil supply channels 403 and oil supply grooves 401, the oil supply grooves 401 are in communication with the ring groove 402 by the oil supply channels 403, the ring groove 402 is formed in an inner circle surface of the second roller 42 and is in communication with the second lateral oil hole 13, the oil supply channels 403 extend axially from the ring groove 402 to the oil supply grooves 401, the oil supply grooves 401 are formed in the end surface of the second roller 42 facing the spacer plate 6 and penetrate through the inner circle surface of the second roller 42 in the radial direction, a second axial oil groove 14 is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove 14 is in communication with the oil supply grooves 401 and the second lateral oil hole 13.
In the present embodiment, there are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the second roller 42 and the spacer plate 6.
The oil supply grooves 401 and the oil supply channels 403 in the first roller 41 and the second roller 42 are able to be in communication with each other in a one-to-one correspondence manner, and are also able to be formed in a staggered manner in the circumferential direction.
In the present embodiment, the ring groove 402, the oil supply grooves 401 and the oil supply channels 403 are formed in the first roller 41, wherein the ring groove 402 is formed in an axial middle position of the first roller 41, corresponds to a position where the first lateral oil hole 11 in the first eccentric portion is located, and is in communication with the first lateral oil hole 11, the oil supply grooves 401 are in communication with the first lateral oil hole 11 by the first axial oil groove 12 formed in an outer circle surface of the first eccentric portion, and the oil supply channels 403 extend from the ring groove 402 to the end surface friction pair between the first roller 41 and the spacer plate 6; and the central oil hole 10, the first lateral oil hole 11, the first axial oil groove 12 and the oil supply grooves 401 form a first initiative oil supply path, and the central oil hole 10, the first lateral oil hole 11, the ring groove 402 and the oil supply channels 403 form a second initiative oil supply path, so that two initiative oil supply paths are formed for the end surface friction pair between the first roller 41 and the spacer plate 6, so as to ensure sufficient oil supply, further optimize the lubrication effect, and improve the reliability and performance of the compressor.
The oil supply paths of the end surface friction pair between the first roller 41 and the spacer plate 6 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the oil supply grooves of the first roller → the first roller-spacer plate end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the ring groove in the first roller → the oil supply channels of the first roller → the first roller-spacer plate end surface friction pair.
The ring groove 402, the oil supply grooves 401 and the oil supply channels 403 are formed in the second roller 42, wherein the ring groove 402 is formed in an axial middle position of the second roller 42, corresponds to a position where the second lateral oil hole 13 in the second eccentric portion is located, and is in communication with the second lateral oil hole 13, the oil supply grooves 401 are in communication with the second lateral oil hole 13 by the second axial oil groove 14 formed in an outer circle surface of the second eccentric portion, and the oil supply channels 403 extend from the ring groove 402 to the end surface friction pair between the second roller 42 and the spacer plate 6; and the central oil hole 10, the second lateral oil hole 13, the second axial oil groove 14 and the oil supply grooves 401 form a second initiative oil supply path, and the central oil hole 10, the second lateral oil hole 13, the ring groove 402 and the oil supply channels 403 form a second initiative oil supply path, so that two initiative oil supply paths are formed for the end surface friction pair between the second roller 42 and the spacer plate 6, so as to ensure sufficient oil supply, further optimize the lubrication effect, and improve the reliability and performance of the compressor.
The oil supply paths of the end surface friction pair between the second roller 42 and the spacer plate 6 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the oil supply grooves of the second roller → the second roller-spacer plate end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the ring groove in the second roller → the oil supply channels of the second roller → the second roller-spacer plate end surface friction pair.
As shown in Fig. 13 to Fig. 15, in a fourth embodiment of the present invention, the oil path lubricating structure includes oil supply grooves 401 formed in two end surfaces of the first roller 41, the oil supply grooves 401 radially penetrate through an inner circle surface of the first roller 41, a first axial oil groove 12 is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove 12 is in communication with the oil supply grooves 401 in the two ends of the first roller 41 and the first lateral oil hole 11; and/or, the oil path lubricating structure includes oil supply grooves 401 formed in two end surfaces of the second roller 42, the oil supply grooves 401 radially penetrate through an inner circle surface of the second roller 42, a second axial oil groove 14 is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove 14 is in communication with the oil supply grooves 401 in the two ends of the second roller 42 and the second lateral oil hole 13.
A long-axis lateral oil hole 15 and a short-axis lateral oil hole 16 are further formed in the crankshaft 1, the long-axis lateral oil hole 15 is formed corresponding to a cooperation position of the first flange 21 and the first roller 41, and the short-axis lateral oil hole 16 is formed corresponding to a cooperation position of the second flange 22 and the second roller 42.
Since an axial height of the eccentric portion of the pump body assembly is less than an axial height of the roller, the lubricating oil is able to enter each oil supply groove 401 from a gap between the eccentric portion and the spacer plate 6, thereby implementing the conveyance of the lubricating oil.
In the present embodiment, there are a plurality of oil supply grooves 401 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply grooves 401 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the second roller 42 and the spacer plate 6.
In the present embodiment, the oil supply grooves 401 are formed in the first roller 41, the oil supply grooves 401 include a first oil supply groove 4011 and a second oil supply groove 4012, the first oil supply groove 4011 is located on the end surface of the first roller 41 cooperating with the spacer plate 6, the second oil supply groove 4012 is located on the end surface of the first roller 41 cooperating with the first flange 21, and the first oil supply groove 4011 and the second oil supply groove 4012 are in communication with the first lateral oil hole 11 by the first axial oil groove 12 formed in the outer circle surface of the first eccentric portion, so that the lubricating oil is able to be conveyed to the end surface friction pair between the first roller 41 and the spacer plate 6 and an end surface friction pair between the first roller 41 and the first flange 21, so as to simultaneously realize initiative lubrication supply between the upper and lower end surface cooperation friction pairs of the first roller 41, improve the lubrication effect of the two end surface friction pairs of the first roller 41 of the rotor compressor, reduce the wear and consumption, and improve the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the first roller 41 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the first oil supply groove of the first roller → the first roller-spacer plate end surface friction pair.
The oil supply paths of the end surface friction pair between the first roller 41 and the first flange 21 are as follows:

the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the second oil supply groove of the first roller → the first roller-first flange end surface friction pair.
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the long-axis lateral oil hole → the second oil supply groove of the first roller → the first roller-first flange end surface friction pair.

The oil supply grooves 401 are formed in the second roller 42, the oil supply grooves 401 include a first oil supply groove 4011 and a second oil supply groove 4012, the first oil supply groove 4011 is located on the end surface of the second roller 42 cooperating with the spacer plate 6, the second oil supply groove 4012 is located on the end surface of the second roller 42 cooperating with the second flange 22, and the first oil supply groove 4011 and the second oil supply groove 4012 are in communication with the second lateral oil hole 13 by the second axial oil groove 14 formed in the outer circle surface of the first eccentric portion, so that the lubricating oil is able to be conveyed to the end surface friction pair between the second roller 42 and the spacer plate 6 and an end surface friction pair between the second roller 42 and the second flange 22, so as to simultaneously realize initiative lubrication supply between the upper and lower end surface cooperation friction pairs of the second roller 42, improve the lubrication effect of the two end surface friction pairs of the second roller 42 of the rotor compressor, reduce the wear and consumption, and improve the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the second roller 42 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the first oil supply groove of the second roller → the second roller-spacer plate end surface friction pair.
The oil supply paths of the end surface friction pair between the second roller 42 and the second flange 22 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the second oil supply groove of the second roller → the second roller-second flange end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the short-axis lateral oil hole → the second oil supply groove of the second roller → the second roller-second flange end surface friction pair.
As shown in Fig. 16 to Fig. 18, in a fifth embodiment of the present invention, the oil path lubricating structure includes oil supply grooves 401 and oil supply channels 403, the oil supply grooves 401 are formed in an end surface of the first roller 41 facing the first flange 21 and penetrate through an inner circle surface of the first roller 41 in the radial direction, the oil supply channels 403 penetrate through two end surfaces of the first roller 41 in the axial direction and are in communication with the oil supply grooves 401, a first axial oil groove 12 is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove 12 is in communication with the oil supply grooves 401 and the first lateral oil hole 11; and/or, the oil path lubricating structure includes oil supply grooves 401 and oil supply channels 403, the oil supply grooves 401 are formed in an end surface of the second roller 42 facing the spacer plate 6 and penetrate through an inner circle surface of the second roller 42 in the radial direction, the oil supply channels 403 penetrate through two end surfaces of the second roller 42 in the axial direction and are in communication with the oil supply grooves 401, a second axial oil groove 14 is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove 14 is in communication with the oil supply grooves 401 and the second lateral oil hole 13.
In the present embodiment, there are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil can be uniformly distributed on the end surface friction pair between the second roller 42 and the spacer plate 6.
The oil supply grooves 401 and the oil supply channels 403 in the first roller 41 and the second roller 42 are in communication with each other in a one-to-one correspondence manner, so that the lubricating oil is able to be conveyed into the oil supply channels 403 by the oil supply grooves 401.
In the present embodiment, the oil supply grooves 401 and the oil supply channels 403 are formed in the first roller 41, the oil supply grooves 401 of the first roller 41 are formed in the end surface of the first roller 41 cooperating with the first flange 21, the oil supply grooves 401 extend in the axial direction to the end surface of the first roller 41 cooperating with the first flange 21 and extend in the radial direction to the inner circle surface of the first roller 41, the oil supply channels 403 penetrate through the first roller in the circumferential direction and are in communication with the corresponding oil supply grooves 401, the lubricating oil enters the oil supply grooves 401 from the central oil hole 10 after passing through the first lateral oil hole 11 and the first axial oil groove 12, so as to initiatively supply oil to the end surface friction pair between the first roller 41 and the first flange 21, meanwhile, a part of the lubricating oil enters the oil supply channels 403 from the oil supply grooves 401, and passes through the oil supply channels 403 to reach the end surface friction pair between the first roller 41 and the spacer plate 6 for lubrication, so that initiative lubrication supply between the upper and lower end surface cooperation friction pairs of the first roller 41 is able to be realized at the same time, the lubrication effect of the two end surface friction pairs of the roller of the rotor compressor is improved, the wear and consumption are reduced, and the reliability and performance of the compressor are improved.
The oil supply paths of the end surface friction pair between the first roller 41 and the spacer plate 6 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the oil supply grooves of the first roller → the oil supply channels of the first roller → the first roller-spacer plate end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the long-axis lateral oil hole → the oil supply grooves of the first roller → the oil supply channels of the first roller → the first roller-spacer plate end surface friction pair.
The oil supply paths of the end surface friction pair between the first roller 41 and the first flange 21 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the oil supply grooves of the first roller → the first roller-first flange end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the long-axis lateral oil hole → the oil supply grooves of the first roller → the first roller-first flange end surface friction pair.
The oil supply grooves 401 and the oil supply channels 403 are formed in the second roller 42, the oil supply grooves 401 of the second roller 42 are formed in the end surface of the second roller 42 cooperating with the spacer plate 6, the oil supply grooves 401 extend in the axial direction to the end surface of the second roller 42 cooperating with the spacer plate 6 and extend in the radial direction to the inner circle surface of the second roller 42, the oil supply channels 403 penetrate through the second roller in the circumferential direction and are in communication with the corresponding oil supply grooves 401, the lubricating oil enters the oil supply grooves 401 from the central oil hole 10 after passing through the second lateral oil hole 13 and the second axial oil groove 14, so as to initiatively supply oil to the end surface friction pair between the second roller 42 and the spacer plate 6, meanwhile, a part of the lubricating oil enters the oil supply channels 403 from the oil supply grooves 401, and passes through the oil supply channels 403 to reach the end surface friction pair between the second roller 42 and the second flange 22 for lubrication, so that initiative lubrication supply between the upper and lower end surface cooperation friction pairs of the second roller 42 is able to be realized, the lubrication effect of the two end surface friction pairs of the roller of the rotor compressor is improved, the wear and consumption are reduced, and the reliability and performance of the compressor are improved.
The oil supply path of the end surface friction pair between the second roller 42 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the oil supply grooves of the second roller → the second roller-spacer plate end surface friction pair.
The oil supply path of the end surface friction pair between the second roller 42 and the second flange 22 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the oil supply grooves of the second roller → the oil supply channels of the second roller → the second roller-second flange end surface friction pair.
As shown in Fig. 19 to Fig. 21, in a sixth embodiment of the present invention, the oil path lubricating structure includes oil supply grooves 401 and an oil supply channel 403, the oil supply grooves 401 are formed in two end surfaces of the first roller 41 and penetrate through the inner circle surface of the first roller 41 in the radial direction, the oil supply channel 403 penetrates through the two end surfaces of the first roller 41 in the axial direction and are in communication with the oil supply grooves 401, a first axial oil groove 12 is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove 12 is in communication with the oil supply grooves 401 and the first lateral oil hole 11; and/or, the oil path lubricating structure includes oil supply grooves 401 and an oil supply channel 403, the oil supply grooves 401 are formed in two end surfaces of the second roller 42 and penetrate through an inner circle surface of the second roller 42 in the radial direction, the oil supply channel 403 penetrates through the two end surfaces of the second roller 42 in the axial direction and are in communication with the oil supply grooves 401, a second axial oil groove 14 is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove 14 is in communication with the oil supply grooves 401 and the second lateral oil hole 13.
In the present embodiment, there are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pairs of the second roller 42 and the spacer plate 6.
The oil supply grooves 401 and the oil supply channels 403 are formed in the first roller 41, the oil supply grooves 401 include a first oil supply groove 4011 and a second oil supply groove 4012, the first oil supply groove 4011 is located on the end surface of the first roller 41 cooperating with the spacer plate 6, the second oil supply groove 4012 is located on the end surface of the first roller 41 cooperating with the first flange 21, and the first oil supply groove 4011 and the second oil supply groove 4012 are in communication with the first lateral oil hole 11 by the first axial oil groove 12 formed in the outer circle surface of the first eccentric portion, and the oil supply channels 403 penetrate through the first roller 41 in the circumferential direction and are in communication with the corresponding oil supply grooves 401 in the two ends. The central oil hole 10, the first lateral oil hole 11, the first axial oil groove 12, the first oil supply groove 4011 or the second oil supply groove 4012 of the first roller 41, the oil supply channels 403 and the long-axis lateral oil hole 15 together form a first roller-spacer plate end surface lubricating oil path and a first roller-first flange end surface lubricating oil path. The oil supply channels 403 communicate a first roller-spacer plate oil supply path with a first roller-first flange oil supply path, and has the beneficial effects of balancing the oil supply amounts between the end surface friction pairs of the first roller 41 with the spacer plate 5 and the first flange 21.
The oil supply path of the end surface friction pair between the first roller 41 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the first oil supply groove of the first roller → the first roller-spacer plate end surface friction pair.
The oil supply paths of the end surface friction pair between the first roller 41 and the first flange 21 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the first axial oil groove → the second oil supply groove of the first roller → the first roller-first flange end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the long-axis lateral oil hole → the second oil supply groove of the first roller → the first roller-first flange end surface friction pair.
The oil supply grooves 401 and the oil supply channels 403 are formed in the second roller 42, the oil supply grooves 401 include the first oil supply groove 4011 and the second oil supply groove 4012, the first oil supply groove 4011 is located on the end surface of the second roller 42 cooperating with the spacer plate 6, the second oil supply groove 4012 is located on the end surface of the second roller 42 cooperating with the second flange 22, and the first oil supply groove 4011 and the second oil supply groove 4012 are in communication with the second lateral oil hole 13 by the second axial oil groove 14 formed in the outer circle surface of the second eccentric portion, and the oil supply channels 403 penetrate through the second roller 42 in the axial direction and are in communication with the corresponding oil supply grooves 401 in the two ends. The central oil hole 10, the second lateral oil hole 13, the second axial oil groove 14, the second oil supply groove 4012 or the second oil supply groove 4012 of the second roller 42, the oil supply channels 403 and the short-axis lateral oil hole 16 together form a second roller-spacer plate end surface lubricating oil path and a second roller-second flange end surface lubricating oil path. The oil supply channels 403 communicate a second roller-spacer plate oil supply path with a second roller-second flange oil supply path, and has the beneficial effects of balancing the oil supply amounts between the end surface friction pairs of the second roller 42 with the spacer plate 5 and the second flange 22.
The oil supply path of the end surface friction pair between the second roller 42 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the first oil supply groove of the second roller → the second roller-spacer plate end surface friction pair.
The oil supply paths of the end surface friction pair between the second roller 42 and the second flange 22 are as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the second axial oil groove → the second oil supply groove of the second roller → the second roller-second flange end surface friction pair.
The oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the short-axis lateral oil hole → the second oil supply groove of the second roller → the second roller-second flange end surface friction pair.
As shown in Fig. 22 to Fig. 24, in a seventh embodiment of the present invention, the oil path lubricating structure includes a ring groove 402 and at least one oil supply channel 403, the ring groove 402 is formed in an inner circle surface of the first roller 41 and is in communication with the first lateral oil hole 11, and the oil supply channel 403 is in communication with the ring groove 402 and penetrates through two end surfaces of the first roller 41 in an axial direction; and/or, the oil path lubricating structure includes a ring groove 402 and at least one oil supply channel 403, the ring groove 402 is formed in an inner circle surface of the second roller 42 and is in communication with the second lateral oil hole 13, and the oil supply channel 403 is in communication with the ring groove 402 and penetrates through two end surfaces of the second roller 42.
In one embodiment, there are a plurality of oil supply channels 403 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply channels 403 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the second roller 42 and the spacer plate 6.
In the present embodiment, the ring groove 402 is formed in the inner circle surface of the first roller 41, the ring groove 402 is formed corresponding to the first lateral oil hole 11 in the eccentric portion of the crankshaft 1 and is in communication with the first lateral oil hole 11, the first roller 41 is further provided with at least one oil supply channel 403, and the oil supply channel 403 penetrates through the first roller 41 in the axial direction, so that the lubricating oil is able to reach the end surface friction pair between the first roller 41 and the spacer plate 6 and the end surface friction pair between the first roller 41 and the first flange 21 by the first lateral oil hole 11, the ring groove 402 and the oil supply channel 403, thereby realizing initiative oil supply of the end surface friction pair between the first roller 41 and the spacer plate 6 and the end surface friction pair between the first roller 41 and the first flange 21, improving the lubrication effect of the end surface friction pair between the first roller 41 and the spacer plate 6 and the end surface friction pair between the first roller 41 and the first flange 21, reducing the wear and consumption, and improving the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the first roller 41 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the ring groove in the first roller → the oil supply channel of the first roller → the first roller-spacer plate end surface friction pair.
The oil supply path of the end surface friction pair between the first roller 41 and the first flange 21 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the first lateral oil hole → the ring groove in the first roller → the oil supply channel of the first roller → the first roller-first flange end surface friction pair.
The ring groove 402 is formed in the inner circle surface of the second roller 42, the ring groove 402 is formed corresponding to the second lateral oil hole 13 in the eccentric portion of the crankshaft 1 and is in communication with the second lateral oil hole 13, the second roller 42 is further provided with at least one oil supply channel 403, and the oil supply channel 403 penetrates through the second roller 42 in the axial direction, so that the lubricating oil is able to reach the end surface friction pair between the second roller 42 and the spacer plate 6 and the end surface friction pair between the second roller 42 and the second flange 22 by of the second lateral oil hole 13, the ring groove 402 and the oil supply channel 403, thereby realizing initiative oil supply of the end surface friction pair between the second roller 42 and the spacer plate 6 and the end surface friction pair between the second roller 42 and the second flange 22, improving the lubrication effect of the end surface friction pair between the second roller 42 and the spacer plate 6 and the end surface friction pair between the second roller 42 and the second flange 22, reducing the wear and consumption, and improving the reliability and performance of the compressor.
The oil supply path of the end surface friction pair between the second roller 42 and the spacer plate 6 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the ring groove in the second roller → the oil supply channel of the second roller → the second roller-spacer plate end surface friction pair.
The oil supply path of the end surface friction pair between the second roller 42 and the second flange 22 is as follows:
the oil pool at the bottom of the compressor → the central oil hole of the crankshaft → the second lateral oil hole → the ring groove in the second roller → the oil supply channel of the second roller → the second roller-second flange end surface friction pair.
As shown in Fig. 25 to Fig. 27, in an eighth embodiment of the present invention, the oil path lubricating structure includes a ring groove 402, oil supply grooves 401 and an oil supply channel 403, the ring groove 402 is formed in an inner circle surface of the first roller 41 and is in communication with the first lateral oil hole 11, the oil supply grooves 401 are formed in two end surfaces of the first roller 41 and penetrate through the inner circle surface of the first roller 41 in the radial direction, the oil supply channel 403 penetrates through the two end surfaces of the first roller 41 in an axial direction and are in communication with the oil supply grooves 401 and the ring groove 402, a first axial oil groove 12 is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove 12 is in communication with the oil supply grooves 401 and the first lateral oil hole 11; and/or, the oil path lubricating structure includes oil supply grooves 401 and an oil supply channel 403, the oil supply grooves 401 are formed in two end surfaces of the second roller 42 and penetrate through an inner circle surface of the second roller 42 in the radial direction, the oil supply channel 403 penetrates through the two end surfaces of the second roller 42 in an axial direction and are in communication with the oil supply grooves 401, a second axial oil groove 14 is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove 14 is in communication with the oil supply grooves 401 and the second lateral oil hole 13.
In the present embodiment, there are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the first roller 41, which are uniformly arranged at intervals in the circumferential direction of the first roller 41, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the first roller 41 and the spacer plate 6.
There are a plurality of oil supply grooves 401 and a plurality of oil supply channels 403 in the second roller 42, which are uniformly arranged at intervals in the circumferential direction of the second roller 42, thereby improving the uniformity of oil supply, and thus the lubricating oil is able to be uniformly distributed on the end surface friction pair between the second roller 42 and the spacer plate 6.
The oil supply grooves 401 and the oil supply channels 403 in the first roller 41 and the second roller 42 are able to be in communication with each other in a one-to-one correspondence manner, and are also able to be formed in a staggered manner in the circumferential direction.
In the present embodiment, the ring groove 402, the oil supply grooves 401 and the oil supply channels 403 are formed in the first roller 41, wherein the ring groove 402 is formed in the axial middle position of the first roller 41, corresponds to the position where the first lateral oil hole 11 in the first eccentric portion is located, and is in communication with the first lateral oil hole 11, the oil supply grooves 401 are formed in the two end surfaces of the first roller 41 and are in communication with the first lateral oil hole 11 by the first axial oil groove 12 formed in the outer circle surface of the first eccentric portion, and the oil supply channels 403 penetrate through the first roller 41 in the axial direction and are in communication with the oil supply grooves 401 in the two ends. The oil supply grooves 401 include a first oil supply groove 4011 and a second oil supply groove 4012, the first oil supply groove 4011 is located on the end surface of the first roller 41 cooperating with the spacer plate 6, the second oil supply groove 4012 is located on the end surface of the first roller 41 cooperating with the first flange 21, and the first oil supply groove 4011 and the second oil supply groove 4012 are in communication with the first lateral oil hole 11 by the first axial oil groove 12 formed in the outer circle surface of the first eccentric portion.
The central oil hole 10 of the crankshaft, the lateral oil hole (the first lateral oil hole 11 or the second lateral oil hole 13) of the eccentric portion of the crankshaft, the axial oil groove (the first axial oil groove 12 or the second axial oil groove 14) of the eccentric portion of the crankshaft, the first oil supply grooves 4011 and the second oil supply grooves 4012 in the first roller 41 and the second roller 42, the ring groove 402 and the oil supply channels 403 together form roller-spacer plate end surface lubricating oil paths and roller-flange end surface lubricating oil paths. A plurality of oil supply paths of the roller end surface friction pairs are realized, and the oil supply paths are in communication with each other to realize sufficient lubrication of a contact surface of the roller end surface friction pairs.
According to an embodiment of the present invention, the pump body assembly includes a crankshaft 1, a first flange, a second flange, a cylinder and a roller, the crankshaft 1 includes an eccentric portion, the eccentric portion is located in the cylinder, a central oil hole 10 is formed in the crankshaft 1, a lateral oil hole in communication with the central oil hole 10 is formed in the eccentric portion in a radial direction, the roller is sleeved outside the eccentric portion and is coaxially disposed with the eccentric portion, the roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the roller and the first flange and/or the roller and the second flange, and the lateral oil hole is able to convey lubricating oil to the oil path lubricating structure.
The above oil path structure in the present invention is not only applicable to a pump body assembly of a single-cylinder compressor, but is also applicable to a pump body assembly of a multi-cylinder rolling rotor type compressor having two or more cylinders.
According to an embodiment of the present invention, a compressor includes a pump body assembly, and the pump body assembly is the pump body assembly described above.
The compressor is a single-cylinder compressor, a double-cylinder compressor, or a multi-cylinder compressor.
According to an embodiment of the present invention, an air conditioner includes the compressor described above.
It should be noted that, terms used herein are for the purpose of describing specific embodiments only, and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, a singular form is intended to include a plural form as well. In addition, it should also be understood that, when the terms "contain" and/or "include" are used in the present specification, they indicate the presence of features, steps, operations, devices, assemblies and/or combinations thereof.
It should be noted that, the terms "first" and "second" and the like in the specification, claims and the above-mentioned drawings of the present invention are used for distinguishing similar objects, and are not necessarily used for describing a specific sequence or precedence order. It should be understood that the data used in this way may be exchanged under appropriate circumstances, so that the embodiments of the present invention described herein may be implemented in a sequence other than those illustrated or described herein.
The foregoing descriptions are only some embodiments of the present invention, and are not intended to limit the present invention, and for those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements and the like, made within the spirit and principles of the present invention, shall all fall within the protection scope of the present invention.

Claims

A pump body assembly, comprising a crankshaft (1), a first flange (21), a second flange (22), a first cylinder (51), a second cylinder (52), a first roller (41), a second roller (42) and a spacer plate (6), wherein the crankshaft (1) comprises a first eccentric portion and a second eccentric portion, the first cylinder (51) is sleeved outside the first eccentric portion, the first roller (41) is in coaxial fit with the first eccentric portion, the second cylinder (52) is sleeved outside the second eccentric portion, the second roller (42) is in coaxial fit with the second eccentric portion, the spacer plate (6) is located between the first cylinder (51) and the second cylinder (52), the first cylinder (51) and the second cylinder (52) are located between the first flange (21) and the second flange (22), a central oil hole (10) is formed in the crankshaft (1), a first lateral oil hole (11) in communication with the central oil hole (10) is formed in the first eccentric portion in a radial direction, the first roller (41) is provided with an oil path lubricating structure for lubricating mating end surfaces of the first roller (41) and the spacer plate (6), and the first lateral oil hole (11) is able to convey lubricating oil to the oil path lubricating structure; and/or, a second lateral oil hole (13) in communication with the central oil hole (10) is formed in the second eccentric portion in a radial direction, the second roller (42) is provided with an oil path lubricating structure for lubricating mating end surfaces of the second roller (42) and the spacer plate (6), and the second lateral oil hole (13) is able to convey the lubricating oil to the oil path lubricating structure.
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises at least one oil supply groove (401) formed in an end surface of the first roller (41) facing the spacer plate (6), the oil supply groove (401) radially penetrates through an inner circle surface of the first roller (41), a first axial oil groove (12) is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove (12) is in communication with the at least one oil supply groove (401) and the first lateral oil hole (11); and/or, the oil path lubricating structure comprises at least one oil supply groove (401) formed in an end surface of the second roller (42) facing the spacer plate (6), the oil supply groove (401) radially penetrates through an inner circle surface of the second roller (42), a second axial oil groove (14) is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove (14) is in communication with the at least one oil supply groove (401) and the second lateral oil hole (13).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises a ring groove (402) and at least one oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the first roller (41) and is in communication with the first lateral oil hole (11), and each of the at least one oil supply channel (403) extends axially from the ring groove (402) and penetrates through an end surface of the first roller (41) facing the spacer plate (6); and/or, the oil path lubricating structure comprises a ring groove (402) and at least one oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the second roller (42) and is in communication with the second lateral oil hole (13), and each of the at least one oil supply channel (403) extends axially from the ring groove (402) and penetrates through an end surface of the second roller (42) facing the spacer plate (6).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises a ring groove (402), an oil supply channel (403) and an oil supply groove (401), the oil supply groove (401) is in communication with the ring groove (402) by the oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the first roller (41) and is in communication with the first lateral oil hole (11), the oil supply channel (403) extends axially from the ring groove (402) to the oil supply groove (401), the oil supply groove (401) is formed in an end surface of the first roller (41) facing the spacer plate (6) and penetrates through the inner circle surface of the first roller (41) in the radial direction, a first axial oil groove (12) is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove (12) is in communication with the oil supply groove (401) and the first lateral oil hole (11); and/or, the oil path lubricating structure comprises a ring groove (402), an oil supply channel (403) and an oil supply groove (401), the oil supply groove (401) is in communication with the ring groove (402) by the oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the second roller (42) and is in communication with the second lateral oil hole (13), the oil supply channel (403) extends axially from the ring groove (402) to the oil supply groove (401), the oil supply groove (401) is formed in an end surface of the second roller (42) facing the spacer plate (6) and penetrates through the inner circle surface of the second roller (42) in the radial direction, a second axial oil groove (14) is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove (14) is in communication with the oil supply groove (401) and the second lateral oil hole (13).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises oil supply grooves (401) formed in two end surfaces of the first roller (41), the oil supply grooves (401) radially penetrate through an inner circle surface of the first roller (41), a first axial oil groove (12) is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove (12) is in communication with the oil supply grooves (401) in the two ends of the first roller (41) and the first lateral oil hole (11); and/or, the oil path lubricating structure comprises oil supply grooves (401) formed in two end surfaces of the second roller (42), the oil supply grooves (401) radially penetrate through an inner circle surface of the second roller (42), a second axial oil groove (14) is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove (14) is in communication with the oil supply grooves (401) in the two ends of the second roller (42) and the second lateral oil hole (13).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises an oil supply groove (401) and an oil supply channel (403), the oil supply groove (401) is formed in an end surface of the first roller (41) facing the first flange (21) and penetrates through an inner circle surface of the first roller (41) in the radial direction, the oil supply channel (403) penetrates through two end surfaces of the first roller (41) in an axial direction and is in communication with the oil supply groove (401), a first axial oil groove (12) is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove (12) is in communication with the oil supply groove (401) and the first lateral oil hole (11); and/or, the oil path lubricating structure comprises an oil supply groove (401) and an oil supply channel (403), the oil supply groove (401) is formed in an end surface of the second roller (42) facing the spacer plate (6) and penetrates through an inner circle surface of the second roller (42) in the radial direction, the oil supply channel (403) penetrates through two end surfaces of the second roller (42) in an axial direction and is in communication with the oil supply groove (401), a second axial oil groove (14) is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove (14) is in communication with the oil supply groove (401) and the second lateral oil hole (13).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises oil supply grooves (401) and an oil supply channel (403), the oil supply grooves (401) are formed in two end surfaces of the first roller (41) and penetrate through an inner circle surface of the first roller (41) in the radial direction, the oil supply channel (403) penetrates through the two end surfaces of the first roller (41) in an axial direction and are in communication with the oil supply grooves (401), a first axial oil groove (12) is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove (12) is in communication with the oil supply grooves (401) and the first lateral oil hole (11); and/or, the oil path lubricating structure comprises oil supply grooves (401) and an oil supply channel (403), the oil supply grooves (401) are formed in two end surfaces of the second roller (42) and penetrate through an inner circle surface of the second roller (42) in the radial direction, the oil supply channel (403) penetrates through the two end surfaces of the second roller (42) in an axial direction and are in communication with the oil supply grooves (401), a second axial oil groove (14) is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove (14) is in communication with the oil supply grooves (401) and the second lateral oil hole (13).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises a ring groove (402) and at least one oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the first roller (41) and is in communication with the first lateral oil hole (11), and the at least one oil supply channel (403) is in communication with the ring groove (402) and penetrates through two end surfaces of the first roller (41) in an axial direction; and/or, the oil path lubricating structure comprises a ring groove (402) and at least one oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the second roller (42) and is in communication with the second lateral oil hole (13), and the at least one oil supply channel (403) is in communication with the ring groove (402) and penetrates through two end surfaces of the second roller (42).
The pump body assembly according to claim 1, wherein the oil path lubricating structure comprises a ring groove (402), oil supply grooves (401) and an oil supply channel (403), the ring groove (402) is formed in an inner circle surface of the first roller (41) and is in communication with the first lateral oil hole (11), the oil supply grooves (401) are formed in two end surfaces of the first roller (41) and penetrate through the inner circle surface of the first roller (41) in the radial direction, the oil supply channel (403) penetrates through the two end surfaces of the first roller (41) in an axial direction and are in communication with the oil supply grooves (401) and the ring groove (402), a first axial oil groove (12) is formed in an outer circle surface of the first eccentric portion, and the first axial oil groove (12) is in communication with the oil supply grooves (401) and the first lateral oil hole (11); and/or, the oil path lubricating structure comprises oil supply grooves (401) and an oil supply channel (403), the oil supply grooves (401) are formed in two end surfaces of the second roller (42) and penetrate through an inner circle surface of the second roller (42) in the radial direction, the oil supply channel (403) penetrates through the two end surfaces of the second roller (42) in an axial direction and are in communication with the oil supply grooves (401), a second axial oil groove (14) is formed in an outer circle surface of the second eccentric portion, and the second axial oil groove (14) is in communication with the oil supply grooves (401) and the second lateral oil hole (13).
A pump body assembly, comprising a crankshaft (1), a first flange (21), a second flange (22), a cylinder and a roller, wherein the crankshaft (1) comprises an eccentric portion, the eccentric portion is located in the cylinder, a central oil hole (10) is formed in the crankshaft (1), a lateral oil hole in communication with the central oil hole (10) is formed in the eccentric portion in a radial direction, the roller is sleeved outside the eccentric portion and is coaxially disposed with the eccentric portion, the roller is provided with an oil path lubricating structure for lubricating mating end surfaces of the roller and the first flange (21) and/or the roller and the second flange (22), and the lateral oil hole is able to convey lubricating oil to the oil path lubricating structure.
A compressor, comprising the pump body assembly according to any one of claims 1-10.
An air conditioner, comprising the compressor according to claim 11.