CN111140504A - Pump body assembly, fluid machine and heat exchange equipment - Google Patents
Pump body assembly, fluid machine and heat exchange equipment Download PDFInfo
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- CN111140504A CN111140504A CN201911158508.3A CN201911158508A CN111140504A CN 111140504 A CN111140504 A CN 111140504A CN 201911158508 A CN201911158508 A CN 201911158508A CN 111140504 A CN111140504 A CN 111140504A
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- 239000012530 fluid Substances 0.000 title claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 10
- 230000013011 mating Effects 0.000 claims description 11
- 238000005461 lubrication Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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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
- 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
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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
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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
-
- 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
- F04C2240/20—Rotors
-
- 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
- F04C2240/30—Casings or housings
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention provides a pump body assembly, a fluid machine and heat exchange equipment. Wherein, pump body subassembly, including cylinder jacket, cylinder and piston, the cylinder rotationally sets up in the cylinder jacket, and piston slidable ground sets up in the cylinder, and pump body subassembly still includes: the rotating shaft comprises a matching section, the matching section is arranged in the piston in a penetrating mode to drive the piston to move, two first matching planes which are arranged in parallel are arranged on the outer surface of the matching section, and the first matching planes are in contact with the piston to enable the rotating shaft to drive the piston to move; wherein, a distance D is arranged between the two first matching planes, each first matching plane has a width W, and the width W and the distance D satisfy
Or
The central axis of the rotating shaft and the central axis of the cylinder are arranged in parallel and have a preset distance; the width direction of the first matching plane is a direction perpendicular to the central axis of the rotating shaft. The invention solves the problems that the running reliability of the rotary cylinder piston compressor is poor and the normal running of the rotary cylinder piston compressor is influenced in the prior art.
Description
Technical Field
The invention relates to the technical field of pump body assemblies, in particular to a pump body assembly, a fluid machine and heat exchange equipment.
Background
At present, a rotary cylinder piston compressor belongs to a compressor with a brand new structure, and essentially adopts a crosshead shoe structure principle to combine the main structure of the piston compressor with the main structure of a rotor compressor to obtain the compressor. The conventional cylinder-piston compressor includes a rotating shaft, a piston sleeved outside the rotating shaft, and a cylinder sleeved outside the piston. When the rotating shaft rotates, the piston is driven to do circular motion, the distance between the piston and the center of the cylinder runs in the range of 0-e, the rotating shaft and the cylinder are eccentrically assembled, the rotating shaft drives the cylinder to rotate through the piston, and due to the fact that the rotating shaft and the cylinder have an eccentric relation, when the rotating shaft and the cylinder rotate around respective axes respectively and do reciprocating motion relative to the cylinder and the piston, and gas compression is achieved.
However, in the prior art, the contact performance of the rotating shaft and the piston is poor in the rotating process, so that the reliability of the rotary cylinder piston compressor is poor, and the normal operation of the rotary cylinder piston compressor is affected.
Disclosure of Invention
The invention mainly aims to provide a pump body assembly, a fluid machine and heat exchange equipment, and aims to solve the problems that the running reliability of a rotary cylinder piston compressor is poor and the normal running of the rotary cylinder piston compressor is influenced in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pump body assembly including a cylinder liner, a cylinder rotatably disposed in the cylinder liner, and a piston slidably disposed in the cylinder, the pump body assembly further including: the rotating shaft comprises a matching section, the matching section is arranged in the piston in a penetrating mode to drive the piston to move, two first matching planes which are arranged in parallel are arranged on the outer surface of the matching section, and the first matching planes are in contact with the piston to enable the rotating shaft to drive the piston to move; wherein, a distance D is arranged between the two first matching planes, each first matching plane has a width W, and the width W and the distance D satisfy
Or
The central axis of the rotating shaft and the central axis of the cylinder are arranged in parallel and have a preset distance; the width direction of the first matching plane is a direction perpendicular to the central axis of the rotating shaft.
Further, the matching section is of a cylindrical structure, the cylindrical structure forms two first matching planes in a cutting mode, and the width W and the distance D are met
Wherein, the cylindrical structure is coaxial with the rotating shaft.
Further, pump body subassembly still includes flange and lower flange, and the pivot still includes: the long shaft section penetrates through the upper flange, and the outer diameter of the long shaft section is greater than or equal to the outer diameter D1 of the cylindrical structure; the minor axis section is connected with the major axis section through the matching section, the minor axis section is arranged in the lower flange in a penetrating mode, and the outer diameter of the minor axis section is larger than or equal to the distance D.
Further, the outer diameter D1, the width W and the distance D of the cylindrical structure satisfy: d12＝W2+D2。
Furthermore, the matching section is of a columnar structure, the two first matching planes are two oppositely arranged surfaces of the columnar structure, and the two first matching planes are connected through a plane or an arc-shaped surface; wherein, the width W and the distance D are satisfied
Further, pump body subassembly still includes flange and lower flange, and the pivot still includes: the long shaft section penetrates through the upper flange; the minor axis section is connected with the major axis section through the matching section, the minor axis section is arranged in the lower flange in a penetrating mode, and the outer diameter of the minor axis section is larger than or equal to the distance D.
Further, the columnar structure further comprises two connecting planes, two adjacent first matching planes are connected through the two connecting planes, and the two connecting planes are arranged in parallel.
Further, the cylinder has a first extension portion that extends towards the upper flange, and the pump body assembly still includes: the upper limiting plate is arranged between the upper flange and the cylinder sleeve, the first extending part extends into the upper limiting plate, and the upper limiting plate and the first extending part limit the stop so as to prevent the cylinder from moving in the radial direction relative to the upper limiting plate.
Further, the cylinder has a second extension extending toward the lower flange, and the pump body assembly further includes: the lower limiting plate is arranged between the lower flange and the cylinder sleeve, the second extending portion extends into the lower limiting plate, and the lower limiting plate and the second extending portion limit the stop so as to prevent the cylinder from moving in the radial direction relative to the lower limiting plate.
Furthermore, the piston is provided with a second matching surface matched with the first matching plane, and the second matching surface and/or the first matching plane are/is provided with a lubricating oil path for the circulation of lubricating liquid.
According to another aspect of the present invention, there is provided a fluid machine including the pump body assembly described above.
According to another aspect of the present invention, there is provided a heat exchange device comprising the fluid machine described above.
By applying the technical scheme of the invention, the rotating shaft rotates around the central axis of the rotating shaft, the matching section of the rotating shaft drives the piston to move, the piston drives the cylinder to rotate around the central axis of the cylinder, and the piston reciprocates simultaneously relative to the cylinder and the rotating shaft, so that the actions of air suction, compression and exhaust of the pump body assembly are realized. Therefore, in the operation process of the pump body assembly, the first matching planes are in contact with the piston so that the rotating shaft drives the piston to move, and the width W and the distance D of each first matching plane meet the requirement
Or
And then ensure that pivot and piston have good contact, increased the area of contact of pivot with the piston, ensure that the pivot can drive the piston motion, the piston can slide for the pivot, and then solve the prior art transfer cylinder piston compressor's operational reliability relatively poor, influence the problem of the normal operating of transfer cylinder piston compressor, promoted the operational reliability and the operational stability of pump body subassembly.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows an exploded view of a first embodiment of a pump body assembly according to the present invention;
FIG. 2 shows a cross-sectional view of the pump body assembly of FIG. 1;
FIG. 3 shows a perspective view of the shaft of the pump block assembly of FIG. 1;
FIG. 4 shows a front view of the spindle of FIG. 3;
FIG. 5 shows a side view of the spindle of FIG. 3;
FIG. 6 shows a bottom view of the spindle of FIG. 3;
FIG. 7 shows a cross-sectional view of the cylinder of the pump block assembly of FIG. 1;
FIG. 8 shows a top view of the cylinder of FIG. 7;
FIG. 9 is a perspective view of the shaft of the second embodiment of the pump block assembly according to the present invention; and
fig. 10 shows a top view of the spindle in fig. 9.
Wherein the figures include the following reference numerals:
10. a cylinder liner; 20. a cylinder; 21. a first extension portion; 22. a second extension portion; 30. a piston; 40. a rotating shaft; 41. a mating segment; 411. a first mating plane; 42. a long shaft section; 43. a short shaft section; 50. an upper flange; 60. a lower flange; 70. an upper limiting plate; 80. a lower limiting plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problem that the running reliability of the rotary cylinder piston compressor in the prior art is poor and the normal running of the rotary cylinder piston compressor is influenced, the application provides a pump body assembly, a fluid machine and heat exchange equipment.
Example one
As shown in fig. 1 to 8, the pump assembly includes a cylinder liner 10, a cylinder 20, and a piston 30, the cylinder 20 is rotatably disposed in the cylinder liner 10, the piston 30 is slidably disposed in the cylinder 20, and the pump assembly further includes a rotating shaft 40. The rotating shaft 40 includes a matching section 41, the matching section 41 is disposed in the piston 30 in a penetrating manner to drive the piston 30 to move, the outer surface of the matching section 41 has two first matching planes 411 arranged in parallel, and the first matching planes 411 are in contact with the piston 30, so that the rotating shaft 40 drives the piston 30 to move. The two first fitting planes 411 have a distance D therebetween, each first fitting plane 411 has a width W, and the width W and the distance D satisfy
The central axis of the rotation shaft 40 and the central axis of the cylinder 20 are disposed parallel to each other with a predetermined distance therebetween. Wherein, the width direction of the first fitting plane 411 is a direction perpendicular to the central axis of the rotating shaft 40.
By applying the technical scheme of the embodiment, the rotating shaft 40 rotates around the central axis thereof, the matching section 41 of the rotating shaft 40 drives the piston 30 to move, the piston 30 drives the cylinder 20 to rotate around the central axis of the cylinder 20, and then the piston 30 reciprocates simultaneously relative to the cylinder 20 and the rotating shaft 40, so that the suction, compression and exhaust actions of the pump body assembly are realized. Thus, during the operation of the pump assembly, the first fitting planes 411 contact with the piston 30, so that the rotating shaft 40 drives the piston 30 to move, and the width W and the distance D of each first fitting plane 411 satisfy
Or
Thereby ensuring that the rotating shaft 40 is in good contact with the piston 30, increasing the contact area between the rotating shaft 40 and the piston 30, ensuring that the rotating shaft 40 can drive the piston 30 to move, and ensuring that the piston 30 can slide relative to the rotating shaft 40, and further solving the problem of the prior art that the piston compressor of the transfer cylinder has good contact between the rotating shaft 40 and the piston 30The operational reliability is relatively poor, influences the problem of changeing jar piston compressor normal operating, has promoted the operational reliability and the operational stability of pump body subassembly.
In this embodiment, the above-mentioned size relationship between the width W and the distance D of the first fitting plane 411 can reduce the contact stress between the first fitting plane 411 and the piston 30, reduce the wear of the fitting section 41 and the piston 30, and further prolong the service life of the pump body assembly.
As shown in fig. 1 and 2, the cylinder sleeve 10 is disposed outside the cylinder 20 and has a mounting cavity for mounting the cylinder 20, and the cylinder 20 rotates around its central axis in the mounting cavity. Thus, during the rotation of the rotating shaft 40, the engaging section 41 drives the piston 30 to move, so that the piston 30 reciprocates relative to the cylinder 20, and the piston 30 drives the cylinder 20 to rotate relative to the cylinder sleeve 10.
As shown in fig. 3 to 6, the fitting segment 41 is a cylindrical structure, and the cylindrical structure forms two first fitting planes 411 by cutting, and the width W and the distance D satisfy
Wherein the cylindrical structure is arranged coaxially with the rotation shaft 40. Thus, the arrangement enables the structure of the matching section 41 to be simple, the processing and the implementation to be easy, and the processing cost of the matching section 41 to be reduced. Meanwhile, the above-mentioned position relation of the matching section 41 and the rotating shaft 40 makes the movement of the piston 30 driven by the rotating shaft 40 more stable, and reduces the vibration and noise generated in the operation process of the pump body assembly.
As shown in fig. 1 and 2, the pump body assembly further includes an upper flange 50 and a lower flange 60, and the rotating shaft 40 further includes a long shaft section 42 and a short shaft section 43. The long shaft section 42 is inserted into the upper flange 50, and the outer diameter of the long shaft section 42 is greater than or equal to the outer diameter D1 of the cylindrical structure. The short shaft section 43 is connected with the long shaft section 42 through the matching section 41, the short shaft section 43 is arranged in the lower flange 60 in a penetrating mode, and the outer diameter of the short shaft section 43 is larger than or equal to the distance D. Specifically, the upper flange 50 and the lower flange 60 are used for fixing the cylinder liner 10, and the upper flange 50 performs a limit stop on the long shaft section 42 to prevent the long shaft section 42 from being displaced in the radial direction. The lower flange 60 performs a limit stop on the short shaft section 43, so as to prevent the short shaft section 43 from generating radial displacement, and further ensure that the rotating shaft 40 rotates around the central axis thereof all the time.
In this embodiment, the numerical relationship between the outer diameter D1 of the long shaft section 42 and the cylindrical structure, the outer diameter of the short shaft section 43 and the distance D improves the overall structural strength of the rotating shaft 40, prolongs the service life of the rotating shaft 40, and further improves the operational reliability of the pump body assembly.
In the present embodiment, the outer diameter D1, the width W and the distance D of the cylindrical structure satisfy: d12＝W2+D2. Thus, when the outer diameter D1 of the cylindrical structure is constant, the larger the width W and the smaller the distance D (thickness), the larger the contact area between the first engagement flat 411 and the piston 30, and the smaller the average stress, the smaller the degree of wear of the rotary shaft 40 and the piston 30. At the same time, the width W and the distance D are satisfied
The bending rigidity of the rotary shaft 40 can be ensured and the occurrence of fracture due to excessive stress can be avoided.
As shown in fig. 1, 2, 7 and 8, the cylinder 20 has a first extension 21 extending toward the upper flange 50, and the pump body assembly further includes an upper retainer plate 70. The upper limiting plate 70 is disposed between the upper flange 50 and the cylinder liner 10, the first extending portion 21 extends into the upper limiting plate 70, and the upper limiting plate 70 and the first extending portion 21 limit the stop to prevent the cylinder 20 from moving in the radial direction relative to the upper limiting plate 70. Like this, go up limiting plate 70 and can support cylinder 20, avoid cylinder 20 to take place radial direction displacement, guarantee that cylinder 20 rotates around its central axis all the time, guarantee that pump body assembly can realize normal action of breathing in, compressing and exhausting.
Specifically, the upper limiting plate 70 is connected to the upper flange 50 by a fastener. The upper limiting plate 70 has a first through hole for the first extending portion 21 to extend into, and the first extending portion 21 extends into the first through hole and is limited and stopped by the inner wall of the first through hole.
In the present embodiment, the first extension 21 is a circular ring structure, and the circular ring structure is disposed coaxially with the cylinder 20. Note that the structure of the first extension portion 21 is not limited to this. Alternatively, the first extension 21 is a plurality of arcs, and each arc is disposed coaxially with the cylinder 20.
As shown in fig. 1, 2 and 7, the cylinder 20 has a second extension 22 extending toward the lower flange 60, and the pump body assembly further includes a lower retainer plate 80. Wherein, lower limiting plate 80 sets up between lower flange 60 and cylinder jacket 10, and second extension 22 stretches into in the lower limiting plate 80, and lower limiting plate 80 and the spacing backstop of second extension 22 take place radial direction's displacement for preventing cylinder 20 relative to lower limiting plate 80. Like this, lower limiting plate 80 can support cylinder 20, avoids cylinder 20 to take place radial direction displacement, guarantees that cylinder 20 rotates around its central axis all the time, guarantees that pump body assembly can realize the normal action of breathing in, compressing and exhausting.
Specifically, the lower retainer plate 80 is connected to the lower flange 60 by fasteners. The lower limiting plate 80 has a second through hole for the second extending portion 22 to extend into, and the second extending portion 22 extends into the second through hole and is limited and stopped by the inner wall of the second through hole.
In the present embodiment, the second extension 22 is a circular ring structure, and the circular ring structure is disposed coaxially with the cylinder 20. Note that the structure of the second extension portion 22 is not limited to this. Alternatively, the second extension 22 is a plurality of arcs, each arc being disposed coaxially with the cylinder 20.
In the present embodiment, the piston 30 has a second engagement surface engaged with the first engagement plane 411, and the first engagement plane 411 has a lubrication oil path for flowing a lubrication fluid. Specifically, the lubricating oil way sets up in the border department of first cooperation plane 411, and pivot 40 has the axial oil feed passageway, and axial oil feed passageway and lubricating oil way intercommunication to make the outer lubricating oil of pump body subassembly enter into the lubricating oil way via the axial oil feed passageway, for fully supplying oil between first cooperation plane 411 and the second cooperation face, reduce the frictional force between the two, avoid the increase of stress between the two, further reduce the structure wearing and tearing of pivot 40 and piston 30.
The manner of providing the lubrication oil passage is not limited to this. Alternatively, the lubrication passage extends in the radial direction of the rotating shaft 40.
The position of the lubricating oil passage is not limited to this. In other embodiments not shown in the drawings, the lubrication oil passage is provided on the second mating face.
Specifically, the pump body assembly works on the following principle:
the cylinder 20 and the piston 30 form a variable volume chamber therebetween, the cylinder 20 and the rotary shaft 40 rotate about respective central axes, and the piston 30 reciprocates simultaneously with respect to the cylinder 20 and the rotary shaft 40. The reciprocating motion of the piston 30 relative to the cylinder 20 achieves the periodic enlargement and reduction of the volume-variable chamber. The cylinder 20 rotates relative to the cylinder liner 10, and the communication between the variable volume chambers and the suction passage or the exhaust passage, respectively, is realized. The two combined motions realize the processes of air suction, compression and air exhaust of the pump body assembly.
The present application also provides a fluid machine (not shown) comprising the pump body assembly described above. Optionally, the fluid machine is a compressor.
The present application also provides a heat exchange device (not shown) comprising a fluid machine as described above.
Example two
The pump body assembly in the second embodiment is different from the first embodiment in that: the structure of the mating segment 41 is different.
As shown in fig. 9 and 10, the fitting section 41 is a cylindrical structure, the two first fitting planes 411 are two oppositely disposed surfaces of the cylindrical structure, and the two first fitting planes 411 are connected by a plane or an arc surface. Wherein, the width W and the distance D are satisfied
Thus, the arrangement enables the structure of the matching section 41 to be simple, the processing and the implementation to be easy, and the processing cost of the matching section 41 to be reduced. Meanwhile, the above-mentioned position relation of the matching section 41 and the rotating shaft 40 makes the movement of the piston 30 driven by the rotating shaft 40 more stable, and reduces the vibration and noise generated in the operation process of the pump body assembly.
As shown in fig. 9, the pump body assembly further includes an upper flange 50 and a lower flange 60, and the rotating shaft 40 further includes a long shaft section 42 and a short shaft section 43. Wherein the long shaft section 42 is arranged in the upper flange 50 in a penetrating way. The short shaft section 43 is connected with the long shaft section 42 through the matching section 41, the short shaft section 43 is arranged in the lower flange 60 in a penetrating mode, and the outer diameter of the short shaft section 43 is larger than or equal to the distance D. Specifically, the upper flange 50 and the lower flange 60 are used for fixing the cylinder liner 10, and the upper flange 50 performs a limit stop on the long shaft section 42 to prevent the long shaft section 42 from being displaced in the radial direction. The lower flange 60 performs a limit stop on the short shaft section 43, so as to prevent the short shaft section 43 from generating radial displacement, and further ensure that the rotating shaft 40 rotates around the central axis thereof all the time.
In this embodiment, the numerical relationship between the outer diameter of the short shaft section 43 and the distance D improves the overall structural strength of the rotating shaft 40, prolongs the service life of the rotating shaft 40, and further improves the operational reliability of the pump body assembly.
As shown in fig. 9 and 10, the columnar structure further includes two connection planes, and two adjacent first fitting planes 411 are connected by the two connection planes, and the two connection planes are arranged in parallel with each other. Specifically, the connection plane and the first matching plane 411 are perpendicular to each other, so that the processing of the columnar structure is easier and simpler, and the processing cost of the columnar structure is reduced.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the rotating shaft rotates around the central axis of the rotating shaft, the matching section of the rotating shaft drives the piston to move, the piston drives the cylinder to rotate around the central axis of the cylinder, and then the piston reciprocates simultaneously relative to the cylinder and the rotating shaft, so that the actions of air suction, compression and exhaust of the pump body assembly are realized. Therefore, in the operation process of the pump body assembly, the first matching planes are in contact with the piston so that the rotating shaft drives the piston to move, and the width W and the distance D of each first matching plane meet the requirement
Or
Thereby ensuring that the rotating shaft and the piston have good contact, increasing the contact area of the rotating shaft and the piston, ensuring that the rotating shaft can drive the piston to move, and the piston can slide relative to the rotating shaft, and further solving the problem of piston compression of a transfer cylinder in the prior artThe running reliability of the machine is poor, the problem that the normal running of the rotary cylinder piston compressor is influenced is solved, and the running reliability and the running stability of the pump body assembly are improved.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A pump block assembly comprising a cylinder liner (10), a cylinder (20) and a piston (30), the cylinder (20) being rotatably disposed within the cylinder liner (10), the piston (30) being slidably disposed within the cylinder (20), the pump block assembly further comprising:
the rotating shaft (40) comprises a matching section (41), the matching section (41) penetrates through the piston (30) to drive the piston (30) to move, two first matching planes (411) arranged in parallel are arranged on the outer surface of the matching section (41), and the first matching planes (411) are in contact with the piston (30) to enable the rotating shaft (40) to drive the piston (30) to move;
wherein two of the first mating planes (411) have a distance D therebetween, each of the first mating planes (411) has a width W, and the width W and the distance D satisfy
Or
The central axis of the rotating shaft (40) and the central axis of the cylinder (20) are arranged in parallel and have a preset distance; wherein the width direction of the first fitting plane (411) is a direction perpendicular to the central axis of the rotating shaft (40).
2. The pump body assembly according to claim 1, wherein the engagement section (41) is a cylindrical structure cut to form two first engagement planes (411), the width W and the distance D being such that
Wherein the cylindrical structure is arranged coaxially with the rotating shaft (40).
3. The pump block assembly according to claim 2, further comprising an upper flange (50) and a lower flange (60), the spindle (40) further comprising:
the long shaft section (42) is arranged in the upper flange (50) in a penetrating mode, and the outer diameter of the long shaft section (42) is larger than or equal to the outer diameter D1 of the cylindrical structure;
the short shaft section (43) is connected with the long shaft section (42) through the matching section (41), the short shaft section (43) penetrates through the lower flange (60), and the outer diameter of the short shaft section (43) is larger than or equal to the distance D.
4. The pump body assembly according to claim 2, wherein the outer diameter D1, the width W and the distance D of the cylindrical structure satisfy: d12＝W2+D2。
5. The pump body assembly according to claim 1, characterized in that said engagement section (41) is a cylindrical structure, the two first engagement planes (411) being two oppositely disposed surfaces of said cylindrical structure, the two first engagement planes (411) being connected by a plane or an arc; wherein the width W and the distance D satisfy
6. The pump block assembly according to claim 5, further comprising an upper flange (50) and a lower flange (60), the spindle (40) further comprising:
the long shaft section (42) is arranged in the upper flange (50) in a penetrating way;
the short shaft section (43) is connected with the long shaft section (42) through the matching section (41), the short shaft section (43) penetrates through the lower flange (60), and the outer diameter of the short shaft section (43) is larger than or equal to the distance D.
7. The pump body assembly according to claim 5, characterized in that said cylindrical structure further comprises two connection planes, by means of which two adjacent first mating planes (411) are connected, said two connection planes being arranged parallel to each other.
8. The pump body assembly according to claim 3 or 6, characterized in that the cylinder (20) has a first extension (21) extending towards the upper flange (50), the pump body assembly further comprising:
the upper limiting plate (70) is arranged between the upper flange (50) and the cylinder sleeve (10), the first extending portion (21) extends into the upper limiting plate (70), and the upper limiting plate (70) and the first extending portion (21) limit and stop to prevent the cylinder (20) from displacing in the radial direction relative to the upper limiting plate (70).
9. The pump body assembly according to claim 3 or 6, characterized in that the cylinder (20) has a second extension (22) extending towards the lower flange (60), the pump body assembly further comprising:
the lower limiting plate (80) is arranged between the lower flange (60) and the cylinder sleeve (10), the second extending portion (22) extends into the lower limiting plate (80), and the lower limiting plate (80) and the second extending portion (22) limit and stop to prevent the cylinder (20) from displacing in the radial direction relative to the lower limiting plate (80).
10. The pump block assembly according to claim 1, characterized in that the piston (30) has a second mating surface that mates with the first mating plane (411), the second mating surface and/or the first mating plane (411) having a lubrication circuit on which a lubrication fluid circulates.
11. A fluid machine, characterized by comprising a pump body assembly according to any one of claims 1 to 10.
12. A heat exchange device comprising a fluid machine according to claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158508.3A CN111140504A (en) | 2019-11-22 | 2019-11-22 | Pump body assembly, fluid machine and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911158508.3A CN111140504A (en) | 2019-11-22 | 2019-11-22 | Pump body assembly, fluid machine and heat exchange equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140504A true CN111140504A (en) | 2020-05-12 |
Family
ID=70516595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911158508.3A Pending CN111140504A (en) | 2019-11-22 | 2019-11-22 | Pump body assembly, fluid machine and heat exchange equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140504A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB338546A (en) * | 1929-07-18 | 1930-11-18 | George Edward Thomas Eyston | Improvements in and connected with rotary pump machines |
| DE2447869A1 (en) * | 1974-10-08 | 1976-04-22 | Robert Ing Grad Wendhof | Rotary piston engine or motor - has two blocks oscillating inside a rotating cylinder |
| KR19990073188A (en) * | 1998-08-19 | 1999-10-05 | 이영복 | Rotary pump by the piston |
| 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 |
| CN108799108A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Pump assembly, fluid machinery and heat transmission equipment |
| CN208474106U (en) * | 2018-07-18 | 2019-02-05 | 珠海格力电器股份有限公司 | Pump assembly, fluid machinery and heat exchange equipment |
| 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 |
| CN209604248U (en) * | 2018-12-18 | 2019-11-08 | 珠海格力电器股份有限公司 | Piston limit structure, compressor and heat exchange equipment |
| CN211397889U (en) * | 2019-11-22 | 2020-09-01 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine and heat exchange equipment |
-
2019
- 2019-11-22 CN CN201911158508.3A patent/CN111140504A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB338546A (en) * | 1929-07-18 | 1930-11-18 | George Edward Thomas Eyston | Improvements in and connected with rotary pump machines |
| DE2447869A1 (en) * | 1974-10-08 | 1976-04-22 | Robert Ing Grad Wendhof | Rotary piston engine or motor - has two blocks oscillating inside a rotating cylinder |
| KR19990073188A (en) * | 1998-08-19 | 1999-10-05 | 이영복 | Rotary pump by the piston |
| 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 |
| CN108799108A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Pump assembly, fluid machinery and heat transmission equipment |
| CN208474106U (en) * | 2018-07-18 | 2019-02-05 | 珠海格力电器股份有限公司 | Pump assembly, fluid machinery and heat exchange equipment |
| 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 |
| CN209604248U (en) * | 2018-12-18 | 2019-11-08 | 珠海格力电器股份有限公司 | Piston limit structure, compressor and heat exchange equipment |
| CN211397889U (en) * | 2019-11-22 | 2020-09-01 | 珠海格力电器股份有限公司 | Pump body assembly, fluid machine and heat exchange equipment |
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