CN218093429U

CN218093429U - Pump body subassembly, compressor and refrigeration plant

Info

Publication number: CN218093429U
Application number: CN202222330536.2U
Authority: CN
Inventors: 陈晋涵; 马英超
Original assignee: Guangdong Midea Environmental Technologies Co Ltd
Current assignee: Guangdong Midea Environmental Technologies Co Ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2022-12-20
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses a pump body component, which is used for a compressor and comprises a crankshaft, a main frame and a movable disk, wherein the movable disk is rotatably arranged on the main frame and is in driving connection with the crankshaft, and the crankshaft is provided with an oil duct; the mechanism is characterized in that thrust surfaces are respectively formed on the opposite end surfaces of the movable disc and the main frame; the movable disc is provided with an oil hole, one end of the oil hole is communicated with the oil duct, and the other end of the oil hole penetrates through the thrust surface of the movable disc. The utility model discloses an adopt the thrust face of oil in the oilhole on the driving disk with the oil duct of bent axle to introduce the driving disk to carry out the fuel feeding to the thrust face, and then promote the vice lubrication of thrust face friction of driving disk and main frame, reduce friction loss between them.

Description

Pump body subassembly, compressor and refrigeration plant

Technical Field

The utility model relates to a compressor field, in particular to pump body subassembly, compressor and refrigeration plant.

Background

In the operation process of the existing scroll compressor with the low-pressure cavity structure, the back of the movable disc and the main frame form a thrust surface friction pair, the movable disc stirs an oil pool of the main frame and oil mist close to the movable disc in the shell enters the thrust surface friction pair, and lubricating oil is provided for the thrust surface friction pair. Because the oil supply amount of the oil mist is low and unstable, under the condition of high-speed operation, an oil film between the movable disc and the main frame is easy to break to cause boundary friction, so that the friction loss of the compressor is increased, the energy efficiency of the compressor is greatly reduced, even high-temperature burning is caused, the friction surface is damaged, and the compressor is scrapped.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pump body subassembly aims at solving the current problem that vice department of friction loss of thrust surface friction of pump body subassembly's driving disk and main frame is big.

In order to achieve the above object, the present invention provides a pump body assembly for a compressor, the pump body assembly including a crankshaft, a main frame, and a movable disk, the movable disk being rotatably mounted on the main frame and being in driving connection with the crankshaft, the crankshaft having an oil passage; thrust surfaces are respectively formed on the opposite end surfaces of the movable disc and the main frame; the movable disc is provided with an oil hole, one end of the oil hole is communicated with the oil duct, and the other end of the oil hole penetrates through the thrust surface of the movable disc.

In some examples, the movable plate is convexly provided with a first boss; the oil hole is formed in the first boss.

In some examples, the first boss is provided with a movable shaft hole, and the movable shaft hole is communicated with the oil channel; one end of the oil hole is communicated with the dynamic disc shaft hole, and the other end of the oil hole penetrates through the outer ring wall surface of the first boss.

In some examples, a thrust oil pool is concavely arranged on the thrust surface of the main frame, and one end, far away from the oil passage, of the oil hole is communicated with the thrust oil pool.

In some examples, an oil blocking seat is convexly arranged on a thrust surface of the main frame; the oil blocking seat is annularly arranged, and the oil blocking seat and the thrust surface of the main frame are enclosed to form the thrust oil pool.

In some examples, the main frame is provided with a first slot; the pump body assembly further comprises an oil retainer ring arranged between the main frame and the movable disc, a first bolt is convexly arranged on the oil retainer ring corresponding to the first slot, and the first bolt is embedded in the first slot.

In some examples, the oil baffle ring is arranged at one end of the oil baffle seat far away from the main frame; the thrust oil pool is formed by enclosing the thrust surfaces of the oil retainer ring, the oil retainer seat and the main frame.

In some examples, the oil blocking seat is provided with a second slot; and a second bolt is convexly arranged on the oil retainer corresponding to the second slot, and the second bolt is embedded in the second slot.

In some examples, a main frame oil sump is formed on the main frame; and the main frame is provided with a thrust surface oil guide groove for communicating the thrust oil pool and the main frame oil pool.

In some examples, a second boss is convexly arranged on one side end face, facing the movable disc, of the main frame; the main frame oil pool is arranged on one side, away from the thrust oil pool, of the second boss; the thrust oil pool is annularly arranged on the periphery of the second boss, and the thrust surface oil guide groove is formed in the second boss.

In some examples, the pump body assembly further comprises a cross slip ring; the movable disc is provided with a key groove and/or a convex key matched with the cross-shaped slip ring key, and the key groove and/or the convex key are/is arranged close to the outer ring wall of the movable disc.

The utility model discloses on the basis of above-mentioned pump body subassembly, still provide an embodiment of compressor, include as in above-mentioned arbitrary example pump body subassembly, the compressor has the oil storage tank, the oil duct of bent axle with the oil storage tank is linked together.

The utility model discloses on the basis of the example of above-mentioned compressor, still propose a refrigeration plant, it includes the compressor as above-mentioned example.

The utility model discloses technical scheme introduces the thrust face of driving disk through the fluid that adopts the oilhole on the driving disk in with the oil duct of bent axle to carry out the fuel feeding to the thrust face, and then promote the vice lubrication of thrust face friction of driving disk and main frame, reduce friction loss between them.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the pump body assembly of the present invention;

FIG. 2 is a partial cross-sectional view of an embodiment of the engagement state of the movable plate, the main support and the stationary plate according to the present invention;

FIG. 3 is a schematic structural view of an embodiment of the movable plate of the present invention;

fig. 4 is a schematic structural diagram of an embodiment of the main frame of the present invention;

fig. 5 is a schematic structural diagram of an embodiment of the slinger of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Crankshaft	20	Cross slip ring
21	Convex key	30	Movable disc
				31	Key groove	32	First boss
33	Oil hole	34	Dynamic disc shaft hole
				40	Main frame	41	Second boss
42	Thrust surface oil guide groove	43	Oil blocking seat
				44	Second slot	45	First slot
46	Thrust oil pool	47	Main frame oil pool
				50	Oil deflector ring	51	First bolt
52	Second bolt	60	Static disc

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a pump body assembly capable of being used in a compressor, the pump body assembly having a crankshaft 10, a main frame 40, a movable plate 30 and a stationary plate 60,

when the pump body assembly is installed in the compressor, the compressor has a housing (not shown), a crankshaft 10, an eccentric sleeve (not shown), a main frame 40, a movable disk 30, a stationary disk 60 and a floating plate (not shown), the main frame 40 is installed in the housing, and the main frame 40 is closely matched with the movable disk 30, and the crankshaft 10 is in driving connection with the movable disk 30 for driving the movable disk 30 to rotate relatively. The compressor also includes functional components such as an oldham ring 20, a motor (not shown). The stationary plate 60 is used to form a compression chamber in cooperation with the movable plate 30, and meanwhile, the stationary plate 60 has an exhaust chamber communicating with the compression chamber and an exhaust passage communicating with the exhaust chamber, and the stationary plate 60 is further provided with an exhaust hole for communicating the exhaust chamber and the compression chamber. A partition plate (not shown) is arranged in the shell, the partition plate divides the inner cavity of the shell into a suction chamber and a discharge chamber, and the main frame 40, the motor, the crankshaft 10, the movable disc 30 and the static disc 60 are all arranged in the suction chamber. The discharge passage communicates with the discharge chamber. The motor may be fixed to the housing by interference fit, and the main frame 40 may be fixed to the housing by welding. The movable platen 30 and the stationary platen 60 are disposed opposite to each other with a phase difference of 180 DEG, and the movable platen 30 is mounted on the main frame 40 such that the movable platen 30 rotates synchronously with the main frame 40 when the crankshaft 10 rotates relatively, and the movable platen 30 can rotate relatively to the main frame 40, so that the main frame 40 receives an axial force from the movable platen 30. The movable plate 30 moves under the driving of the crankshaft 10 and engages with the stationary plate 60 to form a series of crescent-shaped compression chambers which are isolated from each other and have two variable volumes, and the compression chambers communicate with the suction chamber. The floating plate is installed on the back of the static disc 60, and the floating plate can axially float in the working process of the compressor so as to seal the gap between the static disc 60 and the partition plate, and the static disc 60 can axially float. In this example, the compressor may further include other functional components, which are referred to in the prior art and are not described in detail.

It should be noted that although the present invention discloses a plurality of components in the above compressor, only a compressor with the driving disc 30 and the static disc 60 is illustrated for easy understanding, the technical problem of the present invention is not necessarily solved by all or part of the above components.

Referring to fig. 2 and 3, in some examples, the movable plate 30 and the main frame 40 are respectively formed with a thrust surface, and the thrust surfaces of the movable plate 30 and the main frame 40 are disposed opposite to each other to form a thrust surface friction pair.

The compressor has an oil reservoir. The crankshaft 10 is provided with an oil passage communicated with an oil storage pool; the movable plate 30 is provided with an oil hole 33, one end of the oil hole 33 is communicated with an oil passage of the crankshaft 10, and the other end of the oil hole 33 penetrates through a thrust surface of the movable plate 30; when the compressor is operated, oil in the oil passage of the crankshaft 10 enters the oil hole 33 and flows to the thrust surface of the movable plate 30 through the oil hole 33, thereby providing lubrication for the friction pair of the thrust surface. Because the oil forms an oil film on the thrust surface friction pair of the movable disc 30 and the static disc 60, the lubricating performance of the movable disc 30 and the static disc 60 of the compressor can be effectively improved. Through promoting the lubricating property, can reduce the vice friction loss of thrust surface friction of driving disk 30 and main frame 40 to reduce the loss of pump body subassembly, avoid appearing high temperature and burn the scheduling problem, and then promote the operating property of compressor.

Because fluid forms the oil film at the thrust surface friction pair of movable disk 30 and main frame 40, fluid produces certain buoyancy effect to movable disk 30, and then can reduce movable disk 30 to the produced effort of main frame 40 to further reduce the frictional force between movable disk 30 and the main frame 40, and then reduce the friction loss.

In order to facilitate connection with the crankshaft 10, in some examples, a movable sheave shaft hole 34 is formed on a side of the movable sheave 30 facing away from the stationary sheave 60, an oil hole 33 communicates with the movable sheave shaft hole 34, and an end of the oil hole 33 remote from the movable sheave shaft hole 34 extends through a thrust surface of the movable sheave 30. The camshaft hole 34 communicates with the oil passage, so that the oil in the oil passage of the crankshaft 10 enters the oil hole 33 through the camshaft hole 34. When the crankshaft 10 and the movable platen 30 are fixedly coupled to each other, the oil hole 33 of the movable platen 30 communicates with the oil passage of the crankshaft 10 through the movable platen hole 34. When the compressor is operated, the movable disc 30 rotates relatively under the action of the crankshaft 10, and a negative pressure is formed at the position of the thrust surface friction pair of the movable disc 30 and the main frame 40, so that oil in the oil passage of the crankshaft 10 flows to the thrust surface friction pair of the movable disc 30 and the main frame 40 along the disc shaft hole 34 and the oil hole 33.

In some examples, the cam shaft hole 34 opens on a side of the cam plate 30 facing the main frame 40, and serves as a mounting portion of the cam plate 30 and the main frame 40. Specifically, the crankshaft 10 is fitted in the cam shaft hole 34 to achieve the mutual coupling fixation of the crankshaft 10 and the cam plate 30, and the cam plate 30 is also rotated synchronously when the crankshaft 10 is driven to rotate by a power unit such as a motor.

The oil passage on the crankshaft 10 communicates with the camshaft bore 34. In some examples, there is a gap between the end of the crankshaft 10 and the bottom wall of the camshaft bore 34, and an oil passage extends through the end of the crankshaft 10 to allow oil in the oil passage to enter the interior of the camshaft bore 34. The space that is used for holding fluid is formed with the tip surface of bent axle 10 in dynamic disc shaft hole 34, and oilhole 33 intercommunication dynamic disc shaft hole 34, and when pump body subassembly operation, bent axle 10 relative rotation, fluid flows to dynamic disc shaft hole 34 diapire direction along the oil duct of bent axle 10. The movable plate 30 rotates relative to the main frame 40, a negative pressure is formed at the thrust surface friction pair of the movable plate 30 and the main frame 40, and the oil in the movable plate shaft hole 34 flows to the thrust surface of the movable plate 30 along the oil hole 33, thereby lubricating the surface friction pair of the movable plate 30 and the main frame 40.

In some examples, the oil hole 33 is a straight hole opened on the movable platen 30. In some examples, the oil hole 33 is a complex hole structure in which a plurality of holes communicate with each other.

With reference to fig. 3, in some examples, in order to facilitate opening the oil hole 33, on the basis of the above examples, a first boss 32 is protruded on a side of the movable plate 30 facing away from the stationary plate 60, and the oil hole 33 is opened on the first boss 32. The first boss 32 is protruded on the surface of the movable plate 30 to increase the thickness of the corresponding portion of the movable plate 30, thereby facilitating the opening of the oil hole 33. The thickness of the movable plate 30 at the position of the first boss 32 is increased, so that difficulty in opening the oil hole 33 can be reduced, the length of the oil hole 33 can be shortened, resistance in flowing of oil can be reduced, and increase of oil supply amount is facilitated. In some examples, when the camshaft hole 34 is provided, the camshaft hole 34 opens into the first boss 32, and when the crankshaft 10 is embedded inside the camshaft hole 34, an annular protrusion may be further provided on the first boss 32, the annular protrusion being coaxial with the camshaft hole 34, and the crankshaft 10 being embedded inside the annular protrusion to facilitate limiting the crankshaft 10. In some examples, one end of the oil hole 33 communicates with the camshaft hole 34 and the other end communicates with the outer annular surface of the first boss 32, so as to guide the oil in the camshaft hole 34 to the thrust surface of the camshaft 30. Further, in some examples, the oil hole 33 is provided in the radial direction of the movable disk 30 to facilitate the hole opening.

In some examples, the number of the oil holes 33 is multiple, and the oil holes 33 are distributed at intervals to convey oil to the thrust surface friction pair between the movable plate 30 and the main frame 40 from multiple angles, so as to form an evenly distributed oil film between the movable plate 30 and the main frame 40, and further reduce friction loss between the movable plate 30 and the main frame 40.

Referring to fig. 1 and 4, in some examples, a thrust oil pool 46 is recessed on a thrust surface of the main frame 40, and the thrust oil pool 46 is a groove-like structure recessed on the thrust surface of the main frame 40. The oil hole 33 is provided away from the first end of the cam-shaft hole 34 in correspondence with the thrust oil pool 46 so that the oil in the oil hole 33 can enter the thrust oil pool 46. The thrust oil pool 46 forms a space for containing oil, and the oil enters the thrust oil pool 46 to prevent the oil from being thrown outwards under the action of the movable disc 30. By storing a certain amount of oil, a stable oil film can be formed between the movable disk 30 and the main frame 40 to improve the lubricating performance. By placing a certain amount of oil in the thrust oil pool 46, the concentrated oil can generate certain buoyancy to the movable disk 30, and the movable disk 30 has a tendency of moving towards the direction far away from the main frame 40 under the buoyancy action of the oil, so that the acting force of the movable disk 30 on the main frame 40 is reduced, and the friction loss between the movable disk 30 and the main frame 40 is reduced. In some examples, the thrust oil sump 46 is a groove that opens to a thrust face of the main frame 40. In some examples, an annular stop structure is raised above the thrust face of the main frame 40 to form a thrust oil sump 46.

Referring to fig. 4, in some examples, on the basis of any one of the above examples, an oil blocking seat 43 is convexly provided on a thrust surface of the main frame 40; the oil blocking seat 43 is an annular structure which is convexly arranged on the thrust surface of the main frame 40, the oil blocking seat 43 and the thrust surface of the main frame 40 enclose to form a thrust oil pool 46, and the thrust oil pool 46 is provided with an opening facing the movable disc 30; one end of the oil hole 33, which is far away from the oil passage of the crankshaft 10, is arranged corresponding to the position of the thrust oil pool 46, so that when the oil in the oil hole 33 flows to the thrust surface of the movable plate 30, the oil can enter the thrust oil pool 46 under the action of gravity. By adopting the thrust oil pool 46 to form an annular space in an enclosing manner, and forming the thrust oil pool 46 with an opening with the thrust surface of the main frame 40, when oil in the oil hole 33 enters the thrust oil pool 46, the thrust oil pool 46 forms a space for containing the oil. When the movable disk 30 rotates relatively, the oil is under the action of centrifugal force, and the oil blocking seat 43 blocks the oil from flowing outwards, so that the oil is prevented from being thrown out of a friction pair formed by the thrust surfaces of the movable disk 30 and the main frame 40, and the problem of lubrication failure caused by oil leakage is avoided. Because the thrust oil pool 46 can form the space of holding fluid, fluid is injectd in the thrust oil pool 46, because the fluid of concentrating in the thrust oil pool 46 can produce certain buoyancy to the driving disk 30 for the effort that the driving disk 30 produced main frame 40 reduces, and then can further reduce the friction loss between driving disk 30 and the main frame 40. When the oil is confined within the thrust oil sump 46, the oil forms a relatively stable oil film between the rotor plate 30 and the main frame 40, thereby contributing to enhanced lubrication performance.

In some examples, the movable plate 30 is provided with a first boss 32; the movable disc 30 is also provided with a movable disc shaft hole 34 communicated with the oil passage of the crankshaft 10, the movable disc shaft hole 34 and the oil hole 33 are both arranged on the first boss 32, and the thrust surface of the main frame 40 is convexly provided with an oil blocking seat 43; the oil blocking seat 43 is an annular structure which is convexly arranged on the thrust surface of the main frame 40, the oil blocking seat 43 is annularly arranged on the periphery of the first boss 32, the oil blocking seat 43, the thrust surface of the main frame 40 and the outer annular wall of the first boss 32 enclose to form a thrust oil pool 46, the thrust oil pool 46 is provided with an opening facing the movable disc 30, and one end, away from the shaft hole 34 of the movable disc, of the oil hole 33 is arranged corresponding to the opening of the thrust oil pool 46. Oil in the oil passage of the crankshaft 10 enters the camshaft hole 34, the oil in the camshaft hole 34 enters the thrust oil pool 46 along the oil holes 33 formed in the first bosses 32, the oil is limited in the thrust oil pool 46, a stable oil film is formed in the thrust oil pool 46, and the oil can be prevented from being thrown out of the periphery of the camshaft 30. Because fluid storage is in being annular thrust oil bath 46, can produce the effort of relative equilibrium to movable disk 30, and then when helping improving the stability of movable disk 30, utilize the buoyancy that fluid produced, reduce the produced relative effort of movable disk 30 to the main frame. Further, in some examples, the outer annular wall of the first boss 32 forms an inner annular surface of the thrust oil pool 46, the inner annular wall of the oil blocking seat 43 forms an outer annular surface of the thrust oil pool 46, and one end of the oil hole 33 far away from the dynamic disc shaft hole 34 penetrates through the outer annular wall of the first boss 32, so that oil can directly enter the thrust oil pool 46, oil passages are shortened, and flow resistance of the oil is reduced.

In some examples, the oil deflector seat 43 may be removably mounted to the main frame 40. In some examples, the oil deflector 43 is integrally provided with the main frame 40. Specifically, when the main frame 40 is manufactured, the main frame 40 is fixed to a machining device, and a thrust surface of the main frame 40 is machined by turning or the like to form the annular oil deflector 43. The main frame 40 and the oil baffle seat 43 are integrally formed by injection molding. For convenience of processing, a first slot 45 is formed in the main frame 40. The first slot 45 may be used to position and secure the main frame 40 during machining, such as turning, of the main frame 40 to prevent relative rotation or translation of the main frame 40. When the main frame 40 is injection molded, the core is positioned to form the first slot 45 when the core is removed from the die casting mold. By forming the first slot 45, positioning during machining of the main frame 40 can be facilitated, which contributes to improvement of the machining performance of the main frame 40. In some examples, the number of the first slot 45 may be at least two, for example, by providing at least two first slots 45, the main frame 40 may be limited from multiple orientations, thereby improving the stability of the main frame 40.

In order to prevent oil leakage from occurring at the first slot 45, in some examples, the pump assembly further includes an oil slinger 50, the oil slinger 50 is disposed between the main frame 40 and the movable plate 30, a first latch 51 is protruded from the oil slinger 50 at a position corresponding to the first slot 45, and the first latch 51 is embedded in the first slot 45 to close the first slot 45.

Referring to fig. 1 and 5, in some examples, the pump body assembly includes an oil deflector 50 and an oil deflector seat 43, wherein the oil deflector seat 43 is protruded on a thrust surface of the main frame 40, the oil deflector seat 43 and the oil deflector ring 50 are both in an annular structure, the oil deflector 50 is disposed at an end of the oil deflector seat 43 away from the main frame 40, the oil deflector seat 43 and the oil deflector ring 50 are combined to form a hollow annular structure, and the thrust surfaces of the oil deflector 50, the oil deflector seat 43 and the main frame 40 enclose to form a thrust oil pool 46. A first slot 45 is formed in a thrust surface of the main frame 40, and the first slot 45 is used for positioning the main frame 40 when the main frame 40 is machined. A first latching pin 51 is provided on the slinger 50, the first latching pin 51 corresponding to the position of the first insertion groove 45, and when the slinger 50 is mounted on the slinger seat 43, the first latching pin 51 is inserted into the first insertion groove 45 to close the first insertion groove 45. One end of the oil hole 33 of the movable disc 30, which is remote from the disc hole 34, communicates with the thrust oil pool 46 so that oil can enter the thrust oil pool 46 along the oil hole 33.

After the oil slinger 50 and the oil slinger 43 are fixed to each other, since the first inserting groove 45 is closed by the first plug 51, a relatively closed accommodating space is formed in the oil thrust pool 46, so that oil is confined inside the oil thrust pool 46 to lubricate the thrust surface friction pair of the movable disk 30 and the main frame 40. Because the oil slinger 50 is installed at one end of the oil slinger seat 43, which is far away from the main frame 40, the oil slinger can be used for increasing the depth of the thrust oil pool 46, so that the oil quantity contained in the thrust oil pool 46 can be increased, a good lubricating effect is achieved, meanwhile, the buoyancy generated by oil on the movable disk 30 is utilized, the relative acting force between the movable disk 30 and the main frame 40 is reduced, and the friction loss between the movable disk 30 and the main frame 40 can be further reduced.

Further, in some examples, a first boss 32 is protruded on a side of the movable plate 30 facing away from the stationary plate 60, an annular structure formed by the oil deflector 43 and the oil deflector ring 50 is disposed around the first boss 32, and the first boss 32, the thrust surface of the main frame 40, the oil deflector 43 and the oil deflector ring 50 enclose to form a thrust oil pool 46. The first boss 32 is all seted up to oilhole 33 and movable disk shaft hole 34, and fluid gets into in the thrust oil bath 46 via oilhole 33 to it is spacing to carry out fluid, prevents that fluid from being thrown away the movable disk 30 outside.

In order to fix the slinger 50, in the above example, the slinger seat 43 is provided with the second slot 44, the slinger 50 is provided with the second pin 52 in a protruding manner, and the second pin 52 is embedded in the second slot 44 to prevent the slinger 50 from moving relatively. The second slot 44 may be a through slot penetrating through the inner and outer annular walls of the oil retainer 43, and the second slot 44 may also be a sink slot concavely formed on the oil retainer 43.

Referring to fig. 1 and 4, in some examples, on the basis of the above examples, when the thrust surface of the main frame 40 is provided with the thrust oil pool 46, the main frame 40 is provided with the main frame oil pool 47, and the main frame 40 is further provided with the thrust surface oil guide groove 42 communicating the thrust oil pool 46 and the main frame oil pool 47. When the oil amount in the thrust oil pool 46 is high, the excessive oil enters the main frame oil pool 47 through the thrust surface oil guide groove 42, and the oil amount in the thrust oil pool 46 is further reduced. Through deriving unnecessary fluid in the thrust oil pond 46, can reduce the relative effort of fluid to driving disk 30, and then avoid leading to the too big problem of driving disk 30 axial float because the buoyancy of fluid is too big. In some examples, the main frame oil sump 47 may communicate with an oil sump of the compressor to circulate oil.

Further, in some examples, a second boss 41 is provided protruding on an end surface of the main frame 40 on a side facing the movable disk 30; the thrust oil pool 46 is arranged around the periphery of the second boss 41, and the thrust surface oil guide groove 42 is arranged on the second boss 41. By providing the second boss 41, an oil guide groove 42 for a thrust surface can be conveniently formed on the main frame 40, so as to conveniently guide out excessive oil. When the main frame 40 is manufactured, the main frame oil sump 47 is opened to the second boss 41, so that the second boss 41 restricts the oil in the main frame oil sump 47 from flowing outward, and when the oil in the thrust oil sump 46 is excessive, the excessive oil enters the main frame oil sump 47 along the thrust surface oil guide groove 42. Further, in some examples, an oil deflector seat 43 is disposed on the thrust surface of the main frame 40, the oil deflector seat 43 is annular, the oil deflector seat 43 is disposed around the second boss 41, and an inner annular wall of the oil deflector seat 43, the thrust surface of the main frame 40, and an outer annular wall of the second boss 41 enclose a thrust oil pool 46.

In order to facilitate the limiting of the movable plate 30, in some examples, the pump body assembly further includes a cross slip ring 20, and the cross slip ring 20 is in key fit with the movable plate 30, wherein the key fit may be a flat key fit or a spline fit. Specifically, a key groove 31 is provided on the movable plate 30, and a key 21 is provided at a corresponding position on the oldham ring 20 to fit the oldham ring 20 and the movable plate 30 with each other. In some examples, a key 21 is provided on the movable plate 30 and a key slot 31 is provided on the oldham ring 20.

To avoid interference by rubbing against the thrust surfaces of the cam plate 30 and the main frame 40, in some examples, the key slot 31 or the key 21 on the cam plate 30 is disposed near the periphery of the cam plate 30.

The utility model discloses on the basis of above-mentioned arbitrary example, still provide a compressor, the compressor includes in above-mentioned arbitrary example pump body subassembly. It is worth noting, because the utility model discloses the example of compressor is based on the example of above-mentioned pump body subassembly, consequently, the utility model discloses the whole technical scheme of the whole examples of above-mentioned pump body subassembly is included in the example of pump body subassembly, and the technological effect that reaches is also identical, no longer explains here.

The utility model discloses on the basis of the compressor of above-mentioned arbitrary example, still provide a refrigeration plant, refrigeration plant includes above-mentioned arbitrary example the compressor. It is worth noting that, because the utility model discloses refrigeration plant's example is based on the example of above-mentioned compressor, consequently, the utility model discloses refrigeration plant's example includes all technical scheme of the whole examples of above-mentioned compressor, and the technological effect that reaches is also identical, no longer explains here.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A pump body assembly is used for a compressor and comprises a crankshaft, a main frame and a movable disc, wherein the movable disc is rotatably arranged on the main frame and is in driving connection with the crankshaft, and the crankshaft is provided with an oil passage; the mechanism is characterized in that thrust surfaces are respectively formed on the opposite end surfaces of the movable disc and the main frame; the movable disc is provided with an oil hole, one end of the oil hole is communicated with the oil duct, and the other end of the oil hole penetrates through the thrust surface of the movable disc.

2. The pump body assembly of claim 1, wherein the cam plate has a first boss projecting therefrom; the oil hole is formed in the first boss.

3. The pump body assembly according to claim 2, wherein the first boss defines a camshaft aperture, the camshaft aperture communicating with the oil passage; one end of the oil hole is communicated with the dynamic disc shaft hole, and the other end of the oil hole penetrates through the outer ring wall surface of the first boss.

4. The pump body assembly according to any one of claims 1 to 3, wherein a thrust oil pool is recessed in the thrust surface of the main frame, and an end of the oil hole remote from the oil passage communicates with the thrust oil pool.

5. The pump body assembly according to claim 4, wherein the thrust surface of the main frame is convexly provided with an oil blocking seat; the oil blocking seat is annularly arranged, and the oil blocking seat and the thrust surface of the main frame are enclosed to form the thrust oil pool.

6. The pump assembly of claim 5, wherein the main frame defines a first slot; the pump body assembly further comprises an oil retainer ring arranged between the main frame and the movable disc, a first bolt is convexly arranged on the oil retainer ring corresponding to the first slot, and the first bolt is embedded in the first slot.

7. The pump body assembly according to claim 6, wherein the oil deflector is disposed at an end of the oil deflector remote from the main frame; the oil retainer ring, the oil retainer seat and the thrust surface of the main frame enclose to form the thrust oil pool.

8. The pump body assembly of claim 6, wherein the oil retainer has a second slot formed therein; and a second bolt is convexly arranged on the oil scraper ring at a position corresponding to the second slot, and the second bolt is embedded in the second slot.

9. The pump body assembly of claim 4, wherein the main frame defines a main frame oil sump; and the main frame is provided with a thrust surface oil guide groove for communicating the thrust oil pool and the main frame oil pool.

10. The pump body assembly according to claim 9, wherein a second boss is provided on an end surface of the main frame facing the movable disk; the main frame oil pool is arranged on one side, far away from the thrust oil pool, of the second boss; the thrust oil pool is annularly arranged on the periphery of the second boss, and the thrust surface oil guide groove is formed in the second boss.

11. The pump body assembly of claim 1, further comprising a oldham ring; the movable disc is provided with a key groove and/or a convex key matched with the cross-shaped slip ring key, and the key groove and/or the convex key are/is arranged close to the outer ring wall of the movable disc.

12. A compressor comprising a pump body assembly according to any one of claims 1 to 11, the compressor having an oil reservoir, the oil passage of the crankshaft being in communication with the oil reservoir.

13. A refrigeration apparatus, comprising the compressor of claim 12.