CN109595159B - Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor - Google Patents
Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor Download PDFInfo
- Publication number
- CN109595159B CN109595159B CN201811545458.XA CN201811545458A CN109595159B CN 109595159 B CN109595159 B CN 109595159B CN 201811545458 A CN201811545458 A CN 201811545458A CN 109595159 B CN109595159 B CN 109595159B
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- piston compressor
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 30
- 230000013011 mating Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 95
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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
- F04C29/02—Lubrication; Lubricant separation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention provides a pump body structure of a rotary cylinder piston compressor and the rotary cylinder piston compressor, wherein the pump body structure of the rotary cylinder piston compressor comprises: the cylinder comprises a cylinder body and a convex shaft extending outwards from at least one end of the cylinder body, wherein the convex shaft is provided with a rotating shaft mounting hole and at least one oil guide hole; the oil guide hole penetrates through the side wall of the protruding shaft and is communicated with the rotating shaft mounting hole; at least one excircle matching structure is arranged at least one end of the air cylinder and provided with a matching hole suitable for being filled with the convex shaft; the aperture of the matching hole is smaller than the outer diameter of the cylinder; the cylinder rotates relative to the excircle matching structure; the oil guide groove is arranged on the hole wall of the matching hole and extends from the hole wall of the matching hole to one end far away from the cylinder body towards one end of the cylinder body; or on the outer peripheral surface of the protruding shaft, and one end connected with the cylinder body by the protruding shaft extends to one end far away from the cylinder body. The invention can lubricate the outer peripheral surface of the protruding shaft and the hole wall of the matching hole, and reduce the abrasion between the cylinder and the excircle matching structure.
Description
Technical Field
The invention relates to the technical field of compression equipment, in particular to a pump body structure of a rotary cylinder piston compressor and the rotary cylinder piston compressor.
Background
The rotary cylinder piston compressor is a compressor with a brand new structure, and is essentially a compressor which is obtained by combining a main structure of a piston compressor with a main structure of a rotor compressor by adopting a cross slide block structure principle. The existing rotary cylinder piston compressor comprises a rotating shaft, a piston sleeved outside the rotating shaft and a cylinder sleeved outside the piston; referring to fig. 1, O1 is the center of the rotation shaft, O2 is the center of the cylinder, e is the center of the circle distance, and square is the center of mass of the piston. When the rotating shaft rotates, the piston is driven to perform circular motion, the distance between the piston and the center of the cylinder is 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 the rotating shaft and the cylinder respectively rotate around the respective axes when in operation due to the eccentric relation of the rotating shaft and the cylinder, and the piston performs reciprocating motion relative to the cylinder, so that gas compression is realized.
In the above-mentioned rotary cylinder piston compressor, there are mainly two ways of supporting the cylinder, one is to support the inner circle of the cylinder by a fitting structure such as a flange, and the other is to support the outer circle of the short axis of the cylinder by a fitting structure such as a limiting plate. Specifically, the two ends of the cylinder can be respectively supported by the inner circles or the outer circles or one end of the cylinder is respectively supported by the inner circles and the other end of the cylinder. For the case where there is an outer circular support, the cylinder typically includes a cylinder body, and a male shaft extending from the cylinder body; the outer circle matching structure is provided with a matching hole which is suitable for being filled in the convex shaft. When the cylinder rotates, a friction pair for rotary motion is formed between the outer peripheral surface of the protruding shaft and the hole wall of the matching hole, so that the excircle matching structure and the cylinder are easily worn, and the service life and reliability of the pump body structure and the compressor are affected.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect that the cylinder and the excircle matching structure are easy to wear in the prior art, so as to provide the pump body structure of the rotary cylinder piston compressor and the rotary cylinder piston compressor, wherein the pump body structure is difficult to wear between the cylinder and the excircle matching structure.
The invention provides a pump body structure of a rotary cylinder piston compressor, which comprises:
The cylinder comprises a cylinder body and a protruding shaft extending outwards from at least one end of the cylinder body, wherein a rotating shaft mounting hole and at least one oil guide hole are formed in the protruding shaft; the rotating shaft mounting hole is suitable for mounting a rotating shaft; the oil guide hole penetrates through the side wall of the protruding shaft and is communicated with the rotating shaft mounting hole;
At least one excircle matching structure is arranged at least one end of the cylinder and provided with a matching hole suitable for being filled in the convex shaft; the aperture of the matching hole is smaller than the outer diameter of the cylinder; the cylinder rotates relative to the excircle matching structure;
the oil guide groove is arranged on the hole wall of the matching hole and extends from the hole wall of the matching hole to one end far away from the cylinder body towards one end of the cylinder body; or the oil guide groove is arranged on the outer peripheral surface of the protruding shaft, and one end, connected with the cylinder body, of the protruding shaft extends to the end far away from the cylinder body.
The oil guide groove is in a straight line shape and extends along the axial direction of the matching hole or the axial direction of the protruding shaft.
The oil guide hole is arranged close to the cylinder body.
The number of the oil guide holes is two, and the two oil guide holes are oppositely arranged on the convex shaft.
The oil storage tank is arranged on the hole wall of the matching hole and/or the outer circumferential surface of the protruding shaft; the oil storage tank is communicated with one end of the oil guide tank, which faces the cylinder body.
The end of the matching hole, which faces the cylinder body, is provided with a chamfer angle, and/or the outer peripheral surface of the end, which is connected with the cylinder body, of the convex shaft is provided with a chamfer angle; and the oil storage groove is formed between the chamfer and the peripheral surface of the convex shaft or between the chamfer and the hole wall of the matching hole.
Further comprises:
a piston mounted in the cylinder and adapted to reciprocate in the cylinder;
The rotating shaft is arranged in the piston and is eccentrically arranged with the air cylinder;
The cylinder sleeve is provided with a cylinder mounting cavity suitable for mounting the cylinder and is connected with the excircle matching structure.
In the process that the rotating shaft drives the air cylinder to rotate, the convex shaft moves towards the corresponding area of the hole wall of the matching hole and the area corresponding to the area of the hole wall of the matching hole are bearing areas; the convex shaft is opposite to the corresponding region where the hole wall of the matching hole moves and the region where the hole wall of the matching hole corresponds to the region are non-bearing regions; the oil guide groove is arranged on the non-bearing area.
The cylinder body is provided with an outer circle matching structure, and the outer circle matching structure is arranged between the flange and the cylinder body; the flange is provided with an oil drain hole, and the oil drain hole is a through hole penetrating through the flange along the axial direction and is communicated with one end of the oil guide groove, which is far away from the cylinder body.
The excircle matching structure is provided with two excircles, and the excircles are respectively arranged at two ends of the air cylinder.
The excircle matching structure is a limiting plate.
The invention also provides a rotary cylinder piston compressor, which comprises the pump body structure of the rotary cylinder piston compressor.
The technical scheme of the invention has the following advantages:
1. The invention provides a pump body structure of a rotary cylinder piston compressor, which comprises: the cylinder comprises a cylinder body and a protruding shaft extending outwards from at least one end of the cylinder body, wherein a rotating shaft mounting hole and at least one oil guide hole are formed in the protruding shaft; the rotating shaft mounting hole is suitable for mounting a rotating shaft; the oil guide hole penetrates through the side wall of the protruding shaft and is communicated with the rotating shaft mounting hole; at least one excircle matching structure is arranged at least one end of the cylinder and provided with a matching hole suitable for being filled in the convex shaft; the aperture of the matching hole is smaller than the outer diameter of the cylinder; the cylinder rotates relative to the excircle matching structure; the oil guide groove is arranged on the hole wall of the matching hole and extends from the hole wall of the matching hole to one end far away from the cylinder body towards one end of the cylinder body; or the oil guide groove is arranged on the outer peripheral surface of the protruding shaft, and one end, connected with the cylinder body, of the protruding shaft extends to the end far away from the cylinder body. The convex shaft is provided with at least one oil guide hole, so that oil distributed in the rotating process of the rotating shaft can be guided out between the outer peripheral surface of the convex shaft and the hole wall of the matching hole; meanwhile, by arranging the oil guide groove on the hole wall of the matching hole or the outer peripheral surface of the protruding shaft, the oil guide groove extends from the hole wall of the matching hole towards one end of the cylinder body to the end far away from the cylinder body, or from the protruding shaft to the end connected with the cylinder body to the end far away from the cylinder body, oil sprayed from the oil guide hole in the rotating process of the rotating shaft can enter the oil guide groove, so that the outer peripheral surface of the protruding shaft and the hole wall of the matching hole are lubricated, abrasion between the cylinder and an outer circle matching structure is effectively reduced, and the service life and reliability of the pump body structure and the compressor are improved.
2. The pump body structure of the rotary cylinder piston compressor provided by the invention further comprises an annular oil storage tank, wherein the oil storage tank is arranged on the hole wall of the matching hole and/or the peripheral surface of the convex shaft; the oil storage tank is communicated with one end of the oil guide tank, which faces the cylinder body. This ensures that the oil is supplied from the oil guide groove toward the end of the cylinder body, thereby ensuring that effective lubrication can be performed between the outer peripheral surface of the male shaft and the wall of the mating hole.
3. In the pump body structure of the rotary cylinder piston compressor provided by the invention, in the process that the rotary shaft drives the cylinder to rotate, the convex shaft faces to the corresponding region where the hole wall of the matching hole moves, and the region where the hole wall of the matching hole corresponds to the region are bearing regions; the convex shaft is opposite to the corresponding region where the hole wall of the matching hole moves and the region where the hole wall of the matching hole corresponds to the region are non-bearing regions; the oil guide groove is arranged on the non-bearing area. Because the friction between the outer peripheral surface of the protruding shaft at the bearing area and the hole wall of the matching hole is larger, the oil guide groove is arranged on the non-bearing area, so that the continuity of a lubricating oil film at the bearing area can be ensured, the lubricating area is ensured to have a good lubricating effect, the abrasion at the bearing area is reduced, the abrasion between the outer peripheral surface of the protruding shaft and the hole wall of the matching hole is further fully reduced, and the effect of preventing stress concentration at the bearing area is also realized.
4. The pump body structure of the rotary cylinder piston compressor provided by the invention further comprises a flange, wherein the excircle matching structure is arranged between the flange and the cylinder body; the flange is provided with an oil drain hole, and the oil drain hole is a through hole penetrating through the flange along the axial direction and is communicated with one end of the oil guide groove, which is far away from the cylinder body. The oil in the oil guide groove can be immediately discharged to an oil pool of the compressor by the arrangement of the oil discharge hole, so that oil circulation is formed, the oil in the oil guide groove can take away the friction heat between the outer peripheral surface of the absorbed convex shaft and the hole wall of the matching hole in real time, the temperature of a friction pair formed between the outer peripheral surface of the convex shaft and the hole wall of the matching hole is reduced, and the reliability of the compressor is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a cross slide;
Fig. 2 is an exploded perspective view showing a pump body structure of a rotary cylinder piston compressor according to a first embodiment of the present invention;
FIG. 3 is a perspective view of an outer circular mating structure of the pump body structure of the rotary cylinder piston compressor shown in FIG. 2;
FIG. 4 is a schematic longitudinal cross-sectional view of the excircle mating structure shown in FIG. 3;
FIG. 5 is a schematic longitudinal cross-sectional view of the pump body structure of the rotary cylinder piston compressor of FIG. 2 in an assembled state;
FIG. 6 is an enlarged schematic view of area A of FIG. 5;
Reference numerals illustrate:
1-cylinder, 11-cylinder body, 111-piston mounting hole, 12-convex shaft, 121-rotating shaft mounting hole, 2-excircle matching structure, 21-a matching hole, 3-an oil guiding groove, 4-a rotating shaft, 5-a piston, 6-a cylinder sleeve, 7-an oil storage groove, 8-a chamfer and 9-a flange.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 2-6, the present embodiment provides a pump body structure of a rotary cylinder piston 5 compressor, which includes a cylinder 1, an outer circular matching structure 2, an oil guiding groove 3, a rotating shaft 4, a piston 5 and a cylinder sleeve 6.
The cylinder 1 includes a cylinder body 11, and a boss 12 extending outwardly from at least one end of the cylinder body 11. The cylinder body 11 is provided with a piston mounting hole 111. The protruding shaft 12 is provided with a rotating shaft mounting hole 121 and at least one oil guide hole; the shaft mounting hole 121 is adapted to mount the shaft 4; the oil guide hole penetrates through the sidewall of the male shaft 12 and communicates with the shaft mounting hole 121.
The outer circle matching structure 2 is provided with two matching holes 21 which are respectively arranged at two ends of the cylinder 1 and are suitable for being filled with the convex shaft 12; the aperture of the mating hole 21 is smaller than the outer diameter of the cylinder 1; the cylinder 1 rotates relative to the outer circular mating structure 2. As an alternative embodiment, the outer circumferential engagement structure 2 may have only one, and be provided at one end of the cylinder 1.
The oil guide groove 3 is provided on the wall of the fitting hole 21, and extends from the wall of the fitting hole 21 toward one end of the cylinder body 11 to one end away from the cylinder body 11. As an alternative embodiment, the oil guide groove 3 may be provided on the outer peripheral surface of the boss 12, and extend from the end of the boss 12 connected to the cylinder body 11 to the end distant from the cylinder body 11.
The piston 5 is mounted in the piston mounting hole 111 and is adapted to reciprocate in the piston mounting hole 111.
The rotary shaft 4 is installed in the piston 5 and the rotary shaft installation hole 121 and is disposed eccentrically with respect to the cylinder 1.
The cylinder liner 6 is provided with a cylinder mounting chamber adapted to mount the cylinder 1 and is connected with the outer circumferential mating structure 2.
The rotation shaft 4 rotates, so that the piston 5 reciprocates relative to the cylinder 1 and drives the cylinder 1 to rotate relative to the cylinder liner 6.
By providing at least one oil guide hole on the protruding shaft 12, oil dispensed during the rotation of the rotating shaft 4 can be guided out between the outer circumferential surface of the protruding shaft 12 and the wall of the matching hole 21; meanwhile, the oil guide groove 3 is formed in the hole wall of the matching hole 21 or the outer circumferential surface of the protruding shaft 12, the oil guide groove 3 extends from the hole wall of the matching hole 21 towards one end of the cylinder body 11 to the end far away from the cylinder body 11, or from the protruding shaft 12 to the end connected with the cylinder body 11 to the end far away from the cylinder body 11, oil sprayed out of the oil guide hole in the rotating process of the rotating shaft 4 can enter the oil guide groove 3, so that lubrication is carried out between the outer circumferential surface of the protruding shaft 12 and the hole wall of the matching hole 21, abrasion between the cylinder 1 and the outer circular matching structure 2 is effectively reduced, and the service life and reliability of the pump body structure and the compressor are improved.
The specific shape of the oil guiding groove 3 may be various, and in this embodiment, the oil guiding groove 3 is linear and extends along the axial direction of the mating hole 21 or the axial direction of the male shaft 12. As an alternative embodiment, the oil guiding groove 3 may be spiral, and the relationship between the rotation direction of the oil guiding groove 3 and the rotation direction of the cylinder 1 is satisfied, and when the cylinder 1 rotates relative to the outer circular fitting structure 2, a component force is applied to the oil in the oil guiding groove 3 away from the cylinder body 11.
The specific position of the oil guide hole is not limited, and the oil guide hole in the present embodiment is provided near the cylinder body 11.
The specific number of the oil guide holes may be varied, and in this embodiment, two oil guide holes are provided and are disposed opposite to each other on the male shaft 12. As an alternative embodiment, only one oil guide hole may be provided. As an alternative embodiment, the oil guide holes may have three or four or the like, and may be uniformly distributed in the circumferential direction of the male shaft 12.
The pump body structure of the rotary cylinder piston 5 compressor provided in this embodiment further includes an annular oil storage tank 7, where the oil storage tank 7 is disposed on a wall of the mating hole 21 and is communicated with one end of the oil guiding groove 3 facing the cylinder body 11. This ensures the supply of oil from the oil guide groove 3 toward the end of the cylinder body 11, thereby ensuring effective lubrication between the outer peripheral surface of the male shaft 12 and the wall of the fitting hole 21. As an alternative embodiment, the oil reservoir 7 may be provided on the outer peripheral surface of the male shaft 12. As an alternative embodiment, the oil reservoir 7 may be provided on the wall of the mating hole 21 and the outer peripheral surface of the male shaft 12 at the same time.
The oil reservoir 7 may be formed in various ways, and in this embodiment, a chamfer 8 is provided at one end of the mating hole 21 facing the cylinder body 11, and the oil reservoir 7 is formed between the chamfer 8 and the outer peripheral surface of the boss 12. As an alternative embodiment, a chamfer 8 may be provided on the outer peripheral surface of the end of the boss 12 connected to the cylinder body 11, and an oil reservoir 7 may be formed between the chamfer 8 and the wall of the mating hole 21. As an alternative embodiment, the mating hole 21 may be provided with a chamfer 8 at one end facing the cylinder body 11, and the outer peripheral surface of the end of the male shaft 12 connected to the cylinder body 11 may be provided with a chamfer 8; the oil reservoir 7 is formed between the chamfer 8 on the mating hole 21 and the outer peripheral surface of the male shaft 12, and between the chamfer 8 on the male shaft 12 and the wall of the mating hole 21, that is, the oil reservoir 7 is formed between the two chamfers 8.
In the process that the rotating shaft 4 drives the air cylinder 1 to rotate, the convex shaft 12 moves towards the corresponding area of the hole wall of the matching hole 21, and the area corresponding to the hole wall of the matching hole 21 and the area is a bearing area; the region where the protruding shaft 12 moves away from the wall of the corresponding mating hole 21 and the region where the wall of the mating hole 21 corresponds to the region are non-bearing regions.
The specific position of the oil guiding groove 3 on the wall of the mating hole 21 may be various, and in this embodiment, the oil guiding groove 3 is disposed on the non-bearing area. Because the friction between the outer peripheral surface of the protruding shaft 12 at the bearing area and the hole wall of the matching hole 21 is larger, the oil guide groove 3 is arranged on the non-bearing area, so that the continuity of a lubricating oil film at the bearing area can be ensured, the lubricating area is ensured to have a better lubricating effect, the abrasion at the bearing area is reduced, the abrasion between the outer peripheral surface of the protruding shaft 12 and the hole wall of the matching hole 21 is further fully reduced, and the effect of preventing stress concentration at the bearing area is also realized.
The pump body structure of the rotary cylinder piston 5 compressor provided in the embodiment further comprises a flange 9, and the excircle matching structure 2 is arranged between the flange 9 and the cylinder body 11; the flange 9 is provided with an oil drain hole which is a through hole penetrating through the flange 9 along the axial direction and is communicated with one end of the oil guide groove 3 far away from the cylinder body 11. The oil in the oil guide groove 3 can be immediately discharged into an oil pool of the compressor through the arrangement of the oil discharge hole, so that oil circulation is formed, the absorbed friction heat between the outer peripheral surface of the protruding shaft 12 and the hole wall of the matching hole 21 can be taken away in real time by the oil in the oil guide groove 3, the temperature of a friction pair formed between the outer peripheral surface of the protruding shaft 12 and the hole wall of the matching hole 21 is reduced, and the reliability of the compressor is improved.
The specific form of the outer circle matching structure 2 can be various, and the outer circle matching structure 2 in this embodiment is a limiting plate.
The embodiment also provides a rotary cylinder piston 5 compressor, which comprises the pump body structure of the rotary cylinder piston 5 compressor.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (12)
1. A pump body structure of a rotary cylinder piston compressor, comprising:
The cylinder (1) comprises a cylinder body (11) and a protruding shaft (12) which extends outwards from at least one end of the cylinder body (11), wherein a rotating shaft mounting hole (121) and at least one oil guide hole are formed in the protruding shaft (12); the rotating shaft mounting hole (121) is suitable for mounting a rotating shaft (4); the oil guide hole penetrates through the side wall of the protruding shaft (12) and is communicated with the rotating shaft mounting hole (121);
At least one external circular matching structure (2) arranged at least one end of the cylinder (1) and provided with a matching hole (21) suitable for being filled in the convex shaft (12); the aperture of the matching hole (21) is smaller than the outer diameter of the cylinder (1); the cylinder (1) rotates relative to the excircle matching structure (2);
the oil guide groove (3) is formed in the hole wall of the matching hole (21), and extends from the hole wall of the matching hole (21) to one end far away from the cylinder body (11) towards one end of the cylinder body (11); or the oil guide groove (3) is arranged on the outer peripheral surface of the protruding shaft (12), and one end connected with the cylinder body (11) by the protruding shaft (12) extends to one end far away from the cylinder body (11).
2. Pump body structure of a rotary cylinder piston compressor according to claim 1, characterized in that the oil guiding groove (3) is rectilinear and extends in the axial direction of the mating hole (21) or in the axial direction of the male shaft (12).
3. Pump body structure of a rotary cylinder piston compressor according to claim 1, characterized in that the oil guide hole is arranged close to the cylinder body (11).
4. Pump body structure of a rotary cylinder piston compressor according to claim 1, characterized in that the oil guide holes are provided in two and are oppositely arranged on the protruding shaft (12).
5. Pump body structure of a rotary cylinder piston compressor according to any one of claims 1-4, characterized by further comprising an annular oil reservoir (7), said oil reservoir (7) being provided on the wall of said mating hole (21) and/or on the outer circumferential surface of said male shaft (12); the oil storage tank (7) is communicated with one end of the oil guide tank (3) facing the cylinder body (11).
6. Pump body structure of a rotary cylinder piston compressor according to claim 5, characterized in that the end of the mating hole (21) facing the cylinder body (11) is provided with a chamfer (8), and/or the outer circumferential surface of the end of the protruding shaft (12) connected with the cylinder body (11) is provided with a chamfer (8); the oil storage groove (7) is formed between the chamfer (8) and the outer peripheral surface of the protruding shaft (12) or between the chamfer and the hole wall of the matching hole (21).
7. The pump body structure of a rotary cylinder piston compressor according to any one of claims 1 to 4, further comprising:
a piston (5) mounted in the cylinder (1) and adapted to reciprocate in the cylinder (1);
the rotating shaft (4) is arranged in the piston (5) and is eccentrically arranged with the cylinder (1);
The cylinder sleeve is provided with a cylinder mounting cavity suitable for mounting the cylinder (1) and is connected with the excircle matching structure (2).
8. Pump body structure of a rotary cylinder piston compressor according to claim 7, characterized in that, in the process of the rotary shaft (4) driving the cylinder (1) to rotate, the convex shaft (12) moves towards the corresponding area of the hole wall of the matching hole (21), and the area of the hole wall of the matching hole (21) corresponding to the area is a bearing area; the convex shaft (12) is a non-bearing area in a region moving away from the hole wall of the corresponding matching hole (21) and a region corresponding to the hole wall of the matching hole (21) and the region; the oil guide groove (3) is arranged on the non-bearing area.
9. Pump body structure of a rotary cylinder piston compressor according to any one of claims 1-4, further comprising a flange (9), said outer circular mating structure (2) being provided between said flange (9) and said cylinder body (11); the flange (9) is provided with an oil drain hole, and the oil drain hole is a through hole penetrating through the flange (9) along the axial direction and is communicated with one end, far away from the cylinder body (11), of the oil guide groove (3).
10. Pump body structure of a rotary cylinder piston compressor according to any one of claims 1-4, characterized in that the outer circular mating structure (2) has two, respectively arranged at both ends of the cylinder (1).
11. Pump body structure of a rotary cylinder piston compressor according to any of claims 1-4, characterized in that the outer circular mating structure (2) is a limiting plate.
12. A rotary cylinder piston compressor comprising a pump body structure of a rotary cylinder piston compressor according to any one of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545458.XA CN109595159B (en) | 2018-12-17 | 2018-12-17 | Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811545458.XA CN109595159B (en) | 2018-12-17 | 2018-12-17 | Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor |
Publications (2)
| Publication Number | Publication Date |
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| CN109595159A CN109595159A (en) | 2019-04-09 |
| CN109595159B true CN109595159B (en) | 2024-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811545458.XA Active CN109595159B (en) | 2018-12-17 | 2018-12-17 | Pump body structure of rotary cylinder piston compressor and rotary cylinder piston compressor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110701046B (en) * | 2019-11-12 | 2020-09-08 | 珠海格力电器股份有限公司 | Compression cylinder assembly, rotary cylinder piston compressor and heat exchange equipment |
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| CN204113657U (en) * | 2014-09-30 | 2015-01-21 | 马鞍山市粤美金属制品科技实业有限公司 | A kind of compressor being furnished with loss of weight crankshaft cam |
| CN206206178U (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 |
| CN108799129A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Cylinder structure, pump body structure and rotary cylinder compressor |
| CN209458121U (en) * | 2018-12-17 | 2019-10-01 | 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 |
-
2018
- 2018-12-17 CN CN201811545458.XA patent/CN109595159B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204113657U (en) * | 2014-09-30 | 2015-01-21 | 马鞍山市粤美金属制品科技实业有限公司 | A kind of compressor being furnished with loss of weight crankshaft cam |
| CN206206178U (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 |
| CN108799129A (en) * | 2018-07-18 | 2018-11-13 | 珠海格力电器股份有限公司 | Cylinder structure, pump body structure and rotary cylinder compressor |
| CN209458121U (en) * | 2018-12-17 | 2019-10-01 | 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 |
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| Publication number | Publication date |
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| CN109595159A (en) | 2019-04-09 |
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