US20190316586A1 - Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump - Google Patents
Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump Download PDFInfo
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- US20190316586A1 US20190316586A1 US16/314,584 US201716314584A US2019316586A1 US 20190316586 A1 US20190316586 A1 US 20190316586A1 US 201716314584 A US201716314584 A US 201716314584A US 2019316586 A1 US2019316586 A1 US 2019316586A1
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- cylinder
- rotating shaft
- oil
- hole
- oil guiding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/023—Lubricant distribution through a hollow driving shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0088—Lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/22—Fluid gaseous, i.e. compressible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft
Definitions
- the present disclosure relates to a technical field of compressors, and more particularly to a rotary cylinder piston compressor pump and a compressor with the rotary cylinder piston compressor pump.
- An objective of the present disclosure is to provide a rotary cylinder piston compressor pump, which can solve the problem in the conventional art of large circulation resistance of an oil groove oil channel on the side surface of a rotating shaft.
- Another objective of the present disclosure is to provide a compressor adopting the rotary cylinder piston compressor pump as described above.
- the oil returning channel includes a cylinder oil hole provided on the cylinder, and the cylinder oil hole penetrates through the bottom of the recess and the outer surface of the cylinder.
- the oil returning channel further includes a cylinder short shaft hole provided on a cylinder short shaft, the cylinder short shaft hole is communicated with the cylinder oil hole, and the cylinder short shaft hole penetrates through the inner surface and the outer surface of the cylinder short shaft.
- an intersection area of the rotating shaft hole and the oil guiding channel is not less than 20% of a cross-sectional area of the rotating shaft hole.
- the cylinder includes a cylinder short shaft, and the oil guiding channel is a cylinder hole provided in the cylinder short shaft.
- the oil guiding channel is an oil guiding pipe
- a rotating shaft hole oil guiding sheet is disposed in the rotating shaft hole.
- a piston oil hole penetrating through the inner surface and the outer surface of the piston is provided on the side wall of the piston.
- the present disclosure has the beneficial effects as follows.
- the oil discharging resistance of an oil hole in the side surface of the rotating shaft is effectively reduced, the oil discharging quantity of the oil hole of the rotating shaft is increased, and therefore, the problem of abnormal abrasion caused by insufficient lubrication between the side surface of the rotating shaft and the piston under a heavy working condition is effectively solved.
- FIG. 1 is a schematic diagram illustrating an exploded state of a rotary cylinder piston compressor pump according to a first specific embodiment of the present disclosure
- FIG. 2 is a schematic structure diagram of a rotary cylinder piston corepressor pump according to a first embodiment of the present disclosure
- FIG. 3 is a partial enlarged view of “part I” in FIG. 2 ;
- FIG. 4 is a schematic structure diagram of a rotating shaft according to a first embodiment of the present disclosure
- FIG. 5 is a schematic structure diagram of a cylinder according to a first embodiment of the present disclosure.
- FIG. 8 is a schematic structure diagram of a rotating shaft according to a second embodiment of the present disclosure.
- FIG. 9 is a schematic structure diagram of a cylinder according to a second embodiment of the present disclosure.
- FIG. 10 is a schematic structure diagram of a cross slider.
- 21 rotating shaft hole
- 22 rotating shaft hole oil guiding sheet
- the oil discharging resistance of an oil hole in the side surface of the rotating shaft 2 is reduced, the oil discharging quantity of the oil hole of the rotating shaft 2 is increased, and therefore, the problem of abnormal abrasion caused by insufficient lubrication between the side surface of the rotating shaft 2 and the piston 3 under a heavy working condition is effectively solved.
- the oil returning channel includes a cylinder oil hole 46 provided on the cylinder 4 , and the cylinder oil hole 46 penetrates through the bottom of the recess 45 and the outer surface of the cylinder 4 .
- the oil returning channel further includes a cylinder short shaft hole 47 provided on the cylinder short shaft 42 , the cylinder short shaft hole 47 is communicated with the cylinder oil hole 46 , and the cylinder short shaft hole 47 penetrates through the inner surface and the outer surface of the cylinder short shaft 42 .
- the oil discharging resistance of the oil hole in the side surface of the rotating shaft 2 is further reduced, the oil discharging quantity of the oil hole of the rotating shaft 2 is increased, and therefore, the problem of abnormal abrasion caused by insufficient lubrication between the side surface of the rotating shaft 2 and the piston 3 under a heavy working condition is effectively solved.
- An intersection area of the rotating shaft hole 21 and the oil guiding channel is not less than 20% of a cross-sectional area of the rotating shaft hole 21 .
- a specific means of increasing the intersection area of the rotating shaft hole 21 and the oil guiding channel is to increase the diameter of the rotating shaft hole 21 of the rotating shaft 2 .
- the ratio of the inner diameter of the rotating shaft hole 21 to the outer diameter of the rotating shaft 2 ranges from 0.3 to 0.6. Further preferably, the ratio of the inner diameter of the rotating shaft hole 21 to the outer diameter of the rotating shaft 2 is 0.35, 0.4 or 0.5. In the present embodiment, the inner diameter of the rotating shaft hole 21 is 6 mm, and the outer diameter of the rotating shaft 2 is 16.5 mm.
- a rotating shaft hole oil guiding sheet 22 is disposed in the rotating shaft hole 21 .
- the rotating shaft hole oil guiding sheet 22 has the same structure as the conventional cylinder hole oil guiding sheet 44 disposed in the cylinder hole 43 , and has a spiral blade type structure.
- the inlet end of the rotating shaft hole 21 is a tapered structure flared outward.
- the present embodiment also provides the working process of the above pump:
- a motor drives the rotating shaft 2 to rotate, and the piston supporting surface of the rotating shaft 2 drives the piston 3 to rotate, but the piston 3 only reciprocates relative to the rotating shaft 2 ;
- the non-circular (or circular) side of the piston further drives the cylinder 4 to rotate, at this time, the piston 3 only reciprocates relative to the cylinder 4 , and the reciprocating direction of the piston 3 to the cylinder 4 is perpendicular to the reciprocating direction of the piston 3 to the rotating shaft 2 ; during the reciprocating motion, the entire pump structure completes the process of suction, compression and exhaust.
- the present embodiment also provides a compressor, which includes the rotary cylinder piston compressor pump as described above.
- the oil guiding channel is an oil guiding pipe 7 .
- the cylinder 4 includes a cylinder short shaft 42 , the cylinder short shaft 42 is provided with a through hole structure 48 for providing a moving space for movement of the oil guiding pipe 7 , and the oil guiding pipe 7 is disposed in the through hole structure 48 .
- One end of the oil guiding pipe 7 is mounted on the rotating shaft 2 , the outlet end of the oil guiding pipe 7 is butted with the rotating shaft hole 21 , and an oil guiding sheet 8 is disposed in the oil guiding pipe 7 .
- the structure of the oil guiding sheet is the same as that of the rotating shaft oil guiding sheet 22 mentioned in the first embodiment.
- the inner diameter of the cylinder short shaft 42 is larger than the inner diameter of the cylinder short shaft 42 in the first embodiment, and the corresponding inner diameter of a bearing on a lower flange 6 is also increased.
- the ratio of the inner diameter of the through hole structure 48 to the outer diameter of the cylinder short shaft 42 ranges from 0.6 to 0.8.
- the ratio of the inner diameter of the through hole structure 48 to the outer diameter of the cylinder short shaft 42 is 0.65, 0.7 or 0.75.
- the inner diameter of the through hole structure 48 is 14 mm
- the outer diameter of the cylinder short shaft 42 is 20 mm.
- One end of the oil guiding pipe 7 is inserted into the rotating shaft hole 21 , and the end portion of the rotating shaft hole 21 is arranged in a tapered structure.
- the tapered structure can play a guiding role, which is convenient for assembly of the oil guiding pipe 7 .
- the lower end of the rotating shaft hole 21 is a stepped hole for inserting the oil guiding pipe 7 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
- The present application claims benefit of Chinese Patent Application No. 201610614674.X, filed to the China Patent Office on Jul. 29, 2016, entitled “Rotary Cylinder Piston Compressor Pump and Compressor with the Rotary Cylinder Piston Compressor Pump”, the contents of which are hereby incorporated in its entirety by this reference.
- The present disclosure relates to a technical field of compressors, and more particularly to a rotary cylinder piston compressor pump and a compressor with the rotary cylinder piston compressor pump.
- A rotary cylinder piston compressor belongs to a refrigeration piston compressor of a brand new structure, which essentially adopts a cross slider structure principle. Referring to
FIG. 10 , O1 is the center of a rotating shaft, O2 is the center of a cylinder, e is a center-to-center distance (i.e., eccentric amount of the compressor), and a square is the center of mass of a piston. When the rotating shaft rotates, the piston is driven to move in a circular motion, and the distance between the piston and the center of the cylinder is in the range of 0 to e. The rotating shaft is eccentrically assembled with the cylinder, and the rotating shaft drives the cylinder to rotate through the piston. Due to the eccentric relationship between the rotating shaft and the cylinder, the rotating shaft and the cylinder rotate around the respective axes during operation, and the piston reciprocates relative to the cylinder to achieve gas compression. - Specifically, the rotating shaft of the rotary cylinder piston compressor is eccentrically assembled with the cylinder, the rotating shaft drives the cylinder to rotate through the piston, and oil is pumped through a short shaft hole in a cylinder short shaft to a rotating shaft hole in the rotating shaft of the cylinder. Due to the eccentric relationship between the rotating shaft and the cylinder, the rotating shaft and the cylinder rotate around the respective axes during operation. On the one hand, the contact between the lower end surface of the rotating shaft and the end surface of the cylinder ensures the oil supply of the rotating shaft, but brings adverse influence on the circulation of an oil groove oil channel on the side surface of the rotating shaft, which is not conducive to the lubrication the kinematic pair of the rotating shaft and the piston under heavy working conditions. On the other hand, an intersection area of the inner hole of the rotating shaft and the inner hole of the cylinder rotating shaft has a great influence on the oil supply of the rotating shaft.
- In view of the above problems, there is a need for a rotary cylinder piston compressor pump and a compressor with the rotary cylinder piston compressor pump, which can solve the problem in the conventional art of large circulation resistance of an oil groove oil channel on the side surface of a rotating shaft.
- An objective of the present disclosure is to provide a rotary cylinder piston compressor pump, which can solve the problem in the conventional art of large circulation resistance of an oil groove oil channel on the side surface of a rotating shaft.
- Another objective of the present disclosure is to provide a compressor adopting the rotary cylinder piston compressor pump as described above.
- In order to achieve the objectives, the present disclosure adopts the following technical solutions.
- A rotary cylinder piston compressor pump includes a rotating shaft, a piston and a cylinder, wherein a rotating shaft hole is provided in the rotating shaft, an oil guiding channel communicated with the rotating shaft hole is provided in the cylinder, a recess is formed in the inner end face of the cylinder, an oil path sealed relative to a compression cavity of the cylinder is formed between the recess and the piston, and the oil path is communicated with an oil path between the piston and the rotating shaft and is communicated with the oil guiding channel by means of an oil returning channel.
- As a preferred solution of the above rotary cylinder piston compressor pump, the oil returning channel includes a cylinder oil hole provided on the cylinder, and the cylinder oil hole penetrates through the bottom of the recess and the outer surface of the cylinder.
- As a preferred solution of the above rotary cylinder piston compressor pump, the oil returning channel further includes a cylinder short shaft hole provided on a cylinder short shaft, the cylinder short shaft hole is communicated with the cylinder oil hole, and the cylinder short shaft hole penetrates through the inner surface and the outer surface of the cylinder short shaft.
- As a preferred solution of the above rotary cylinder piston compressor pump, an intersection area of the rotating shaft hole and the oil guiding channel is not less than 20% of a cross-sectional area of the rotating shaft hole.
- As a preferred solution of the above rotary cylinder piston compressor pump, the cylinder includes a cylinder short shaft, and the oil guiding channel is a cylinder hole provided in the cylinder short shaft.
- As a preferred solution of the above rotary cylinder piston compressor pump, the oil guiding channel is an oil guiding pipe;
- the cylinder includes a cylinder short shaft, the cylinder short shaft is provided with a through hole structure for providing a moving space for movement of the oil guiding pipe, and the oil guiding pipe is disposed in the through hole structure; and one end of the oil guiding pipe is mounted on the rotating shaft, the outlet end of the oil guiding pipe is butted with the rotating shaft hole, and an oil guiding sheet is disposed in the oil guiding pipe.
- As a preferred solution of the above rotary cylinder piston compressor pump, a rotating shaft hole oil guiding sheet is disposed in the rotating shaft hole.
- As a preferred solution of the above rotary cylinder piston compressor pump, a piston oil hole penetrating through the inner surface and the outer surface of the piston is provided on the side wall of the piston.
- As a preferred solution of the above rotary cylinder piston compressor pump, the inlet end of the rotating shaft hole is a tapered structure flared outward.
- A compressor may include the rotary cylinder piston compressor pump as described above.
- The present disclosure has the beneficial effects as follows. By providing the recess and the oil returning channel, the oil discharging resistance of an oil hole in the side surface of the rotating shaft is effectively reduced, the oil discharging quantity of the oil hole of the rotating shaft is increased, and therefore, the problem of abnormal abrasion caused by insufficient lubrication between the side surface of the rotating shaft and the piston under a heavy working condition is effectively solved.
-
FIG. 1 is a schematic diagram illustrating an exploded state of a rotary cylinder piston compressor pump according to a first specific embodiment of the present disclosure; -
FIG. 2 is a schematic structure diagram of a rotary cylinder piston corepressor pump according to a first embodiment of the present disclosure; -
FIG. 3 is a partial enlarged view of “part I” inFIG. 2 ; -
FIG. 4 is a schematic structure diagram of a rotating shaft according to a first embodiment of the present disclosure; -
FIG. 5 is a schematic structure diagram of a cylinder according to a first embodiment of the present disclosure; -
FIG. 6 is a schematic diagram illustrating an exploded state of a rotary cylinder piston compressor pump according to a second embodiment of the present disclosure; -
FIG. 7 is a schematic structure diagram of a rotary cylinder piston compressor pump according to a second embodiment of the present disclosure; -
FIG. 8 is a schematic structure diagram of a rotating shaft according to a second embodiment of the present disclosure; -
FIG. 9 is a schematic structure diagram of a cylinder according to a second embodiment of the present disclosure; and -
FIG. 10 is a schematic structure diagram of a cross slider. - 1: Upper flange; 2: rotating shaft; 3: piston; 4: cylinder; 5: cylinder sleeve; 6: lower flange; 7: oil guiding pipe; 8: oil guiding sheet;
- 21: rotating shaft hole; 22: rotating shaft hole oil guiding sheet;
- 31: piston oil hole;
- 41: piston hole; 42: cylinder short shaft; 43: cylinder hole; 44: cylinder hole oil guiding sheet; 45: recess; 46: cylinder oil hole; 47: cylinder short shaft hole; 48: through hole structure.
- The technical solutions of the present disclosure will be further described below in conjunction with the accompanying drawings and specific implementations.
- As shown in
FIG. 1 toFIG. 5 , the present embodiment provides a rotary cylinder piston compressor pump. The rotary cylinder piston compressor pump includes an upper flange 1, a rotating shaft 2, a piston 3, a cylinder 4, a cylinder sleeve 5, and a lower flange 6, wherein the piston 3 is mounted in a piston hole 41 of the cylinder 4, a cylinder short shaft 42 of the cylinder 4 is mounted on the lower flange 6, the cylinder sleeve 5 is mounted coaxially with the cylinder 4, the lower flange 6 is fixed at the lower end of the cylinder sleeve 5, a piston bearing surface of the rotating shaft 2 is fitted with a piston plane, the upper flange 1 fixes the upper half of the rotating shaft 2, and the upper flange 1 is fixed to the upper end of the cylinder sleeve 5 by screws. - Specifically, a rotating
shaft hole 21 is provided in the rotating shaft 2, and an oil guiding channel communicated with the rotatingshaft hole 21 is provided in the cylinder 4. - Referring to
FIG. 2 andFIG. 5 , a recess 45 is formed in the inner end face of the cylinder 4, an oil path sealed relative to a compression cavity of the cylinder 4 is formed between the recess 45 and the piston 3, the oil path is communicated with an oil path between the piston 3 and the rotating shaft 2 and is communicated with the oil guiding channel by means of an oil returning channel. Specifically, referring toFIG. 5 , the recess 45 is an annular oil groove provided around the cylinder short shaft 42, and the provision of the recess 45 does not affect the air tightness between the cylinder short shaft 42 and the rotating shaft 2. - By providing the recess 45 and the oil returning channel, the oil discharging resistance of an oil hole in the side surface of the rotating shaft 2 is reduced, the oil discharging quantity of the oil hole of the rotating shaft 2 is increased, and therefore, the problem of abnormal abrasion caused by insufficient lubrication between the side surface of the rotating shaft 2 and the piston 3 under a heavy working condition is effectively solved.
- The oil returning channel includes a cylinder oil hole 46 provided on the cylinder 4, and the cylinder oil hole 46 penetrates through the bottom of the recess 45 and the outer surface of the cylinder 4.
- The oil returning channel further includes a cylinder short shaft hole 47 provided on the cylinder short shaft 42, the cylinder short shaft hole 47 is communicated with the cylinder oil hole 46, and the cylinder short shaft hole 47 penetrates through the inner surface and the outer surface of the cylinder short shaft 42.
- By providing the recess 45, the cylinder oil hole 46 and the cylinder short shaft hole 47, the oil discharging resistance of the oil hole in the side surface of the rotating shaft 2 is further reduced, the oil discharging quantity of the oil hole of the rotating shaft 2 is increased, and therefore, the problem of abnormal abrasion caused by insufficient lubrication between the side surface of the rotating shaft 2 and the piston 3 under a heavy working condition is effectively solved.
- An intersection area of the rotating
shaft hole 21 and the oil guiding channel is not less than 20% of a cross-sectional area of the rotatingshaft hole 21. By increasing the intersection area of the rotatingshaft hole 21 and the oil guiding channel, the oil pumping amount of the rotating shaft 2 is able to be increased. - A specific means of increasing the intersection area of the rotating
shaft hole 21 and the oil guiding channel is to increase the diameter of the rotatingshaft hole 21 of the rotating shaft 2. Preferably, the ratio of the inner diameter of the rotatingshaft hole 21 to the outer diameter of the rotating shaft 2 ranges from 0.3 to 0.6. Further preferably, the ratio of the inner diameter of the rotatingshaft hole 21 to the outer diameter of the rotating shaft 2 is 0.35, 0.4 or 0.5. In the present embodiment, the inner diameter of the rotatingshaft hole 21 is 6 mm, and the outer diameter of the rotating shaft 2 is 16.5 mm. - Referring to
FIG. 2 , in the present embodiment, the cylinder 4 includes a cylinder short shaft 42, and the oil guiding channel is a cylinder hole 43 provided in the cylinder short shaft 42. The cylinder hole 43 is provided with a cylinder hole oil guiding sheet 44. The cylinder hole oil guiding sheet 44 rotates in synchronism with the cylinder 4 and pumps oil into therotating shaft hole 21 by a centrifugal force. Preferably, an intersection area of therotating shaft hole 21 and the cylinder hole 43 is not less than one-third or one-fifth of the cross-sectional area of therotating shaft hole 21. - Referring to
FIG. 1 andFIG. 2 , in order to further increase the oil pumping amount of the rotating shaft 2, a rotating shaft hole oil guiding sheet 22 is disposed in therotating shaft hole 21. The rotating shaft hole oil guiding sheet 22 has the same structure as the conventional cylinder hole oil guiding sheet 44 disposed in the cylinder hole 43, and has a spiral blade type structure. - A piston oil hole 31 penetrating through the inner surface and the outer surface of the piston 3 is provided on the side wall of the piston 3. The piston oil hole 31 can lubricate the outer wall surface of the piston 3 and the inner wall surface of the cylinder 4 while reducing the oil loss caused by the reciprocating motion of the rotating shaft 2 in the piston hole.
- The inlet end of the
rotating shaft hole 21 is a tapered structure flared outward. By arranging the end portion of therotating shaft hole 21 into a tapered structure, an intersection area of therotating shaft hole 21 and the oil guiding channel can be effectively increased under the premise of the same hole diameter of therotating shaft hole 21. - In order to further explain the above rotary cylinder piston compressor pump, the present embodiment also provides the working process of the above pump:
- A motor drives the rotating shaft 2 to rotate, and the piston supporting surface of the rotating shaft 2 drives the piston 3 to rotate, but the piston 3 only reciprocates relative to the rotating shaft 2; the non-circular (or circular) side of the piston further drives the cylinder 4 to rotate, at this time, the piston 3 only reciprocates relative to the cylinder 4, and the reciprocating direction of the piston 3 to the cylinder 4 is perpendicular to the reciprocating direction of the piston 3 to the rotating shaft 2; during the reciprocating motion, the entire pump structure completes the process of suction, compression and exhaust.
- The present embodiment also provides a compressor, which includes the rotary cylinder piston compressor pump as described above.
- As shown in
FIG. 6 toFIG. 9 , in the present embodiment, another structural form of an oil guiding channel is provided. Referring toFIG. 6 andFIG. 7 , the oil guiding channel is an oil guiding pipe 7. The cylinder 4 includes a cylinder short shaft 42, the cylinder short shaft 42 is provided with a through hole structure 48 for providing a moving space for movement of the oil guiding pipe 7, and the oil guiding pipe 7 is disposed in the through hole structure 48. One end of the oil guiding pipe 7 is mounted on the rotating shaft 2, the outlet end of the oil guiding pipe 7 is butted with therotating shaft hole 21, and an oil guiding sheet 8 is disposed in the oil guiding pipe 7. The structure of the oil guiding sheet is the same as that of the rotating shaft oil guiding sheet 22 mentioned in the first embodiment. - In order to provide a moving space for the oil guiding pipe 7, the inner diameter of the cylinder short shaft 42 is larger than the inner diameter of the cylinder short shaft 42 in the first embodiment, and the corresponding inner diameter of a bearing on a lower flange 6 is also increased. Specifically, the ratio of the inner diameter of the through hole structure 48 to the outer diameter of the cylinder short shaft 42 ranges from 0.6 to 0.8. Preferably, the ratio of the inner diameter of the through hole structure 48 to the outer diameter of the cylinder short shaft 42 is 0.65, 0.7 or 0.75. In the present embodiment, the inner diameter of the through hole structure 48 is 14 mm, and the outer diameter of the cylinder short shaft 42 is 20 mm.
- One end of the oil guiding pipe 7 is inserted into the
rotating shaft hole 21, and the end portion of therotating shaft hole 21 is arranged in a tapered structure. When the oil guiding pipe 7 is assembled into therotating shaft hole 21, the tapered structure can play a guiding role, which is convenient for assembly of the oil guiding pipe 7. Referring toFIG. 8 , the lower end of therotating shaft hole 21 is a stepped hole for inserting the oil guiding pipe 7. By using the oil guiding pipe 7 as the oil guiding channel, the intersection area of therotating shaft hole 21 and the oil guiding channel can be made the same as the cross-sectional area of therotating shaft hole 21, whereby the oil pumping effect of the rotating shaft 2 can be remarkably improved. - It is to be noted that in this embodiment, other structures are the same as that of the first embodiment except that the structural form of the oil guiding channel is different from that of the first embodiment.
- The technical principles of the present disclosure have been described above in connection with specific embodiments. The descriptions are only intended to explain the principles of the present disclosure and are not to be construed as limiting the scope of protection of the present disclosure. Based on the explanation herein, those skilled in the art can associate other specific implementations of the present disclosure without making creative works. These modes fall within the scope of protection of the present disclosure.
Claims (12)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201610614674.X | 2016-07-29 | ||
CN201610614674.XA CN106015008B (en) | 2016-07-29 | 2016-07-29 | It is a kind of to turn the cylinder piston compressor pump and the compressor using it |
PCT/CN2017/073923 WO2018018880A1 (en) | 2016-07-29 | 2017-02-17 | Rotary cylinder piston compressor pump and compressor using same |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2017/073923 A-371-Of-International WO2018018880A1 (en) | 2016-07-29 | 2017-02-17 | Rotary cylinder piston compressor pump and compressor using same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US17/390,669 Continuation-In-Part US11566619B2 (en) | 2016-07-29 | 2021-07-30 | Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump |
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US20190316586A1 true US20190316586A1 (en) | 2019-10-17 |
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ID=57114560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/314,584 Abandoned US20190316586A1 (en) | 2016-07-29 | 2017-02-17 | Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump |
Country Status (4)
Country | Link |
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US (1) | US20190316586A1 (en) |
JP (1) | JP6772301B2 (en) |
CN (1) | CN106015008B (en) |
WO (1) | WO2018018880A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4160021A4 (en) * | 2020-12-29 | 2024-03-13 | Gree Electric Appliances Inc Zhuhai | Pump body assembly and fluid machine |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106015008B (en) * | 2016-07-29 | 2019-10-29 | 珠海格力电器股份有限公司 | It is a kind of to turn the cylinder piston compressor pump and the compressor using it |
US11566619B2 (en) | 2016-07-29 | 2023-01-31 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Rotary cylinder piston compressor pump and compressor with rotary cylinder piston compressor pump |
CN107035693B (en) * | 2017-05-08 | 2019-11-29 | 珠海格力电器股份有限公司 | Driving spindle and compressor |
CN108869278B (en) * | 2018-07-18 | 2023-12-08 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machinery and heat exchange equipment |
CN108799129B (en) * | 2018-07-18 | 2023-10-03 | 珠海格力电器股份有限公司 | Cylinder structure, pump body structure and rotary cylinder compressor |
CN109595157A (en) * | 2018-12-17 | 2019-04-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor |
CN117365909B (en) * | 2023-12-07 | 2024-03-26 | 珠海凌达压缩机有限公司 | Oil guide structure and compressor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR840007619A (en) * | 1983-02-04 | 1984-12-08 | 미다가쓰시게 | Compressor capacity control method and apparatus |
CN201412333Y (en) * | 2009-05-25 | 2010-02-24 | 珠海格力电器股份有限公司 | Scroll compressor |
CN101749246A (en) * | 2009-12-29 | 2010-06-23 | 美的集团有限公司 | Main shaft neck oil return mechanism of driving shaft of scroll compressor |
CN202851360U (en) * | 2012-08-13 | 2013-04-03 | 珠海格力电器股份有限公司 | Compression pump body of rotary compressor |
CN103452845B (en) * | 2013-08-22 | 2016-07-06 | 广东美芝制冷设备有限公司 | Rotary compressor |
CN104373349B (en) * | 2014-11-07 | 2017-06-23 | 广东美芝制冷设备有限公司 | Rotary compressor and its pump group part |
CN204877940U (en) * | 2015-08-07 | 2015-12-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid machinery and indirect heating equipment |
CN105114322A (en) * | 2015-08-18 | 2015-12-02 | 珠海凌达压缩机有限公司 | Upper flange and rotary compressor |
CN105545736A (en) * | 2016-01-22 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotating cylinder piston compressor pump body and compressor comprising same |
CN106015008B (en) * | 2016-07-29 | 2019-10-29 | 珠海格力电器股份有限公司 | It is a kind of to turn the cylinder piston compressor pump and the compressor using it |
CN206206177U (en) * | 2016-07-29 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | It is a kind of to turn the cylinder piston compressor pump housing and use its compressor |
CN106015009B (en) * | 2016-07-29 | 2018-08-07 | 珠海格力节能环保制冷技术研究中心有限公司 | It is a kind of to turn the cylinder piston compressor pump and use its compressor |
-
2016
- 2016-07-29 CN CN201610614674.XA patent/CN106015008B/en active Active
-
2017
- 2017-02-17 WO PCT/CN2017/073923 patent/WO2018018880A1/en active Application Filing
- 2017-02-17 US US16/314,584 patent/US20190316586A1/en not_active Abandoned
- 2017-02-17 JP JP2018568289A patent/JP6772301B2/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4160021A4 (en) * | 2020-12-29 | 2024-03-13 | Gree Electric Appliances Inc Zhuhai | Pump body assembly and fluid machine |
Also Published As
Publication number | Publication date |
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CN106015008B (en) | 2019-10-29 |
JP6772301B2 (en) | 2020-10-21 |
CN106015008A (en) | 2016-10-12 |
JP2019519724A (en) | 2019-07-11 |
WO2018018880A1 (en) | 2018-02-01 |
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