CN108799129B - Cylinder structure, pump body structure and rotary cylinder compressor - Google Patents
Cylinder structure, pump body structure and rotary cylinder compressor Download PDFInfo
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- CN108799129B CN108799129B CN201810792947.9A CN201810792947A CN108799129B CN 108799129 B CN108799129 B CN 108799129B CN 201810792947 A CN201810792947 A CN 201810792947A CN 108799129 B CN108799129 B CN 108799129B
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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
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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
- F04C2240/00—Components
- F04C2240/10—Stators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The application provides a cylinder structure, a pump body structure and a rotary cylinder compressor. The cylinder structure includes the cylinder body, has offered the piston hole on the lateral wall of cylinder body link up, is provided with on the outer peripheral face of cylinder body and leads the oil groove. The oil guide groove is formed in the outer peripheral surface of the cylinder body, so that a lubricating oil film layer is formed between the outer peripheral surface of the cylinder and the inner peripheral surface of the cylinder sleeve, abrasion between the cylinder and the cylinder sleeve is effectively reduced, the service life of a pump body structure of the cylinder with the structure is prolonged, and the reliability of the pump body structure is improved.
Description
Technical Field
The application relates to the technical field of compressor equipment, in particular to a cylinder structure, a pump body structure and a rotary cylinder compressor.
Background
In the prior art, the side surface of the air cylinder is in large-area contact with the air cylinder sleeve, and the two end surfaces of the air cylinder are in large-area contact with the upper limiting plate and the lower limiting plate (the upper flange and the lower flange). The contact surface is two cambered surfaces or planes, the structure is unfavorable for forming a continuous and stable oil film, abnormal abrasion is easy to occur at the contact position, the contact surface is verified in the experimental process, and the problems of mechanical friction loss of the compressor, leakage quantity increase, refrigerating capacity reduction of the compressor and the like are easy to occur.
Disclosure of Invention
The application mainly aims to provide a cylinder structure, a pump body structure and a rotary cylinder compressor, so as to solve the problem that the compressor is easy to wear in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided a cylinder structure comprising: the piston hole is formed in the side wall of the cylinder body in a penetrating mode, and the oil guide groove is formed in the outer peripheral surface of the cylinder body.
Further, the cylinder body is cylindric structure, leads the oil groove and extends the setting from the first end of cylinder body towards the second end of cylinder body spiral gradually.
Further, the spiral direction of the oil guide groove is opposite to the rotation direction of the rotating shaft penetrating the cylinder body.
Further, the oil guide grooves are multiple, and the oil guide grooves are respectively arranged on two sides of the axis of the piston hole.
Further, at least one section of the cylinder body is provided with an oil collecting groove, the geometric center line of the oil collecting groove is arc-shaped, and the outward extending direction of the oil collecting groove along the radial direction of the cylinder body is opposite to the rotating direction of the rotating shaft penetrating the cylinder body.
Further, the oil collecting groove comprises a first oil collecting groove and a second oil collecting groove, the first oil collecting groove is formed in the end face of the first end of the cylinder body, and the second oil collecting groove is formed in the end face of the second end of the cylinder body.
Further, the first oil collecting grooves are multiple, the first oil collecting grooves are arranged at intervals along the circumferential direction of the cylinder body, and the cross sections of the first oil collecting grooves gradually increase outwards along the radial direction of the cylinder body.
Further, an oil inlet of the first oil collecting groove is positioned on the outer circumferential surface of the cylinder body.
Further, the second oil collecting grooves are multiple, the second oil collecting grooves are arranged at intervals along the circumferential direction of the cylinder body, and the cross sections of the second oil collecting grooves gradually decrease outwards along the radial direction of the cylinder body.
Further, an annular sinking groove is formed in one side, close to the inner wall of the cylinder body, of the second end of the cylinder body, and one end, close to the inner wall of the cylinder body, of the second oil collecting groove is communicated with the annular sinking groove.
According to another aspect of the present application, there is provided a pump body assembly comprising a cylinder structure, the cylinder structure being the cylinder structure described above.
Further, the pump body assembly includes: the limiting plate is used for being abutted with at least one end of the cylinder body, an oil supply groove is formed in the surface of the limiting plate, facing one side of the cylinder body, of the limiting plate, and the extending direction of the oil supply groove is the same as the rotating direction of the rotating shaft penetrating through the cylinder body.
Further, the inner circle of the limiting plate intersects with the geometric center line of the oil supply groove along the radial direction of the cylinder body at a point P, an included angle gamma is formed between the geometric center line of the oil supply groove and a tangent line of the point P on the inner circle of the limiting plate, wherein gamma is not less than 0 and not more than 90 degrees, and/or the projection line of the outer circle of the cylinder body on the limiting plate intersects with the oil supply groove at a point P1, the end part of at least one end of the oil supply groove is positioned on the outer side of the outer circle of the cylinder body, and an included angle gamma 1 is formed between the geometric center line of the oil supply groove along the radial direction of the cylinder body and the tangent line of the outer circle of the cylinder body and passing through the point P1, wherein gamma is not less than 0 and not more than 90 degrees.
According to another aspect of the present application, there is provided a rotary cylinder compressor including a pump body assembly as described above.
By adopting the technical scheme, the oil guide groove is arranged on the outer peripheral surface of the cylinder body, so that a lubricating oil film layer is formed between the outer peripheral surface of the cylinder and the inner peripheral surface of the cylinder sleeve, abrasion between the cylinder and the cylinder sleeve is effectively reduced, the service life of the pump body structure of the cylinder with the structure is prolonged, and the reliability of the pump body structure is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic diagram of an exploded construction of an embodiment of a pump body structure according to the application;
fig. 2 shows a schematic cross-sectional view of an embodiment of a pump body structure according to the application;
fig. 3 shows a schematic cross-sectional structure of a first embodiment of a cylinder structure according to the application;
fig. 4 shows a schematic structural view of a second embodiment of a cylinder structure according to the present application;
fig. 5 shows a schematic structural view of an embodiment of a first end of a cylinder structure according to the application;
FIG. 6 shows an enlarged schematic view of the structure at A in FIG. 5;
fig. 7 shows a schematic structural view of a third embodiment of a cylinder structure according to the present application;
fig. 8 shows a schematic structural view of an embodiment of the second end of the cylinder structure according to the application;
FIG. 9 shows an enlarged schematic view of the structure at B in FIG. 8;
fig. 10 shows a schematic structural view of a fourth embodiment of a cylinder structure according to the present application;
FIG. 11 shows an enlarged schematic view of the structure at C in FIG. 10;
fig. 12 shows a schematic structural view of a first embodiment of a limiting plate according to the present application;
fig. 13 shows a schematic structural view of a second embodiment of a limiting plate according to the present application;
FIG. 14 shows a schematic structural view of an embodiment of a stop plate and cylinder structure assembly according to the present application;
fig. 15 shows an enlarged schematic view of the structure at D in fig. 14.
Wherein the above figures include the following reference numerals:
10. a cylinder body; 11. a piston bore;
20. an oil guiding groove;
30. an oil sump; 31. a first oil sump; 32. a second oil sump;
40. an annular sink;
50. a limiting plate; 51. an oil supply tank;
71. a lower flange; 72. a piston; 73. a cylinder liner; 74. an upper flange; 75. a rotating shaft.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
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 exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated 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 the claims and drawings of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
As shown in connection with fig. 1 to 15, according to an embodiment of the present application, there is provided a cylinder structure.
Specifically, as shown in fig. 1 to 3, the cylinder structure includes a cylinder body 10. The side wall of the cylinder body 10 is provided with a piston hole 11 penetrating therethrough, and the outer peripheral surface of the cylinder body 10 is provided with an oil guide groove 20.
In this embodiment, set up the oil groove at the outer peripheral face of cylinder body, can guarantee that the outer peripheral face of cylinder forms the lubricating oil film layer between the inner peripheral face with the cylinder liner, reduced the wearing and tearing that produce between cylinder and the cylinder liner effectively, improved the life of the pump body structure of the cylinder that has this structure, improved the reliability of this pump body structure.
The cylinder body 10 has a cylindrical structure, and the oil guiding groove 20 is gradually spirally extended from a first end of the cylinder body 10 toward a second end of the cylinder body 10. This arrangement can effectively improve the oil guiding efficiency of the oil guiding groove 20. Preferably, the spiral direction of the oil guide groove 20 is opposite to the rotation direction of the rotation shaft penetrating the cylinder body 10.
In order to further improve the oil guiding efficiency of the oil guiding groove 20, a plurality of oil guiding grooves 20 are provided, and the plurality of oil guiding grooves 20 are provided on both sides of the axis of the piston hole 11. As shown in fig. 4, one oil guide groove 20 is provided on each side of the axis of the piston hole 11. Of course, at least one oil guide groove 20 may be provided on both sides of the axis of the piston hole 11.
As shown in fig. 3, in order to further reduce the abrasion of the cylinder structure, an oil sump 30 is provided on at least one section of the cylinder body 10, the geometric center line of the oil sump 30 is arc-shaped, and the outward extending direction of the oil sump 30 in the radial direction of the cylinder body 10 is opposite to the rotating direction of the rotating shaft penetrating into the cylinder body 10.
As shown in fig. 5 and 8, the oil sump 30 includes a first oil sump 31 and a second oil sump 32, the first oil sump 31 is provided on an end surface of the first end of the cylinder body 10, and the second oil sump 32 is provided on an end surface of the second end of the cylinder body 10. Wherein, the arrow in the figure is the rotation direction of the rotating shaft. The arrangement can effectively reduce the abrasion between the two ends of the cylinder structure and the limiting plates, and further improves the reliability of the cylinder structure.
As shown in fig. 5, the first oil sumps 31 are plural, the plural first oil sumps 31 are arranged at intervals in the circumferential direction of the cylinder body 10, and the cross-sections of the plural first oil sumps 31 gradually increase outward in the radial direction of the cylinder body 10. Preferably, the oil inlet of the first oil sump 31 is located on the outer circumferential surface of the cylinder body 10. As shown in fig. 6, f1 is the rear wall of the first oil sump 31, f2 is the front wall of the first oil sump 31, and f3 is the inlet of the first oil sump 31.
As shown in fig. 8, the second oil sumps 32 are plural, the plural second oil sumps 32 are disposed at intervals along the circumferential direction of the cylinder body 10, and the cross-sections of the plural second oil sumps 32 gradually decrease outwardly in the radial direction of the cylinder body 10. As shown in fig. 9 to 11, an annular countersink 40 is formed at a side of the second end of the cylinder body 10, which is close to the inner wall of the cylinder body 10, and one end of the second oil sump 32, which is close to the inner wall of the cylinder body 10, is communicated with the annular countersink 40.
The cylinder structure in the above embodiment can also be used in the technical field of pump body assembly equipment, that is, according to another aspect of the present application, there is provided a pump body assembly, including the cylinder structure, where the cylinder structure is the cylinder structure in the above embodiment. Wherein the pump body assembly includes a stop plate 50. The limiting plate 50 is used for being abutted against at least one end of the cylinder body 10 to limit the cylinder structure, the surface of the limiting plate 50 facing one side of the cylinder body 10 is provided with an oil supply groove 51, and the extending direction of the oil supply groove 51 is the same as the rotating direction of the rotating shaft penetrating through the cylinder body 10. This arrangement can further enhance the lubrication effect between the cylinder structure and the limiting plate 50, preferably the limiting plate 50 is a lower limiting plate of the pump body assembly, which of course may be a plate at the upper limit of the pump body assembly. This arrangement can further reduce wear of the cylinder structure.
As shown in fig. 12 and 13, the inner circle of the limiting plate 50 intersects with the geometric center line of the oil supply groove 51 in the radial direction of the cylinder body 10 at a point P, and the geometric center line of the oil supply groove 51 has an angle γ with the tangent line of the point P on the inner circle of the limiting plate 50, wherein 0.ltoreq.γ.ltoreq.90 °. As shown in fig. 14 and 15, the projection line of the outer circumference of the cylinder body 10 on the limiting plate 50 intersects with the oil supply groove 51 at a point P1, the end of at least one end of the oil supply groove 51 is located outside the outer circumference of the cylinder body 10, and the geometric center line of the oil supply groove 51 in the radial direction of the cylinder body 10 has an included angle γ1 with the tangent line of the outer circumference of the cylinder body 10 passing through the point P1, wherein 0.ltoreq.γ1.ltoreq.90 °. This arrangement can further reduce wear of the cylinder structure.
The pump body assembly in the above embodiment can also be used in the technical field of compressor equipment, that is, according to another aspect of the present application, a rotary cylinder compressor is provided, including the pump body assembly, where the pump body assembly is the pump body assembly in the above embodiment.
Specifically, by adopting the technical scheme of the embodiment, the problem that the refrigerant leakage amount is large because the outer circle of the cylinder structure and the inner circle of the cylinder sleeve cannot form a continuous oil film in the prior art can be effectively solved, and the problems that abnormal wear is caused because the cylinder and the cylinder sleeve cannot form a continuous oil film, and friction power consumption is increased and abnormal wear is caused because lubrication between the end face of the cylinder and the limiting plate is insufficient are also solved. In the application, the spiral oil guide groove is arranged on the side surface of the cylinder, so that a continuous oil film is formed between the cylinder and the cylinder sleeve, the leakage amount of the refrigerant is reduced, and abnormal abrasion is avoided.
The oil collecting groove is arranged at the first end and the second end of the air cylinder, so that the two end faces of the air cylinder are fully lubricated with the upper limiting plate and the lower limiting plate respectively, friction power consumption is reduced, and end face leakage is reduced. The main components of the pump body assembly are shown in fig. 1, and the pump body assembly comprises a rotating shaft 75, a piston 72, a cylinder sleeve 73, a cylinder body 10, a limiting plate 50, an upper flange 74 and a lower flange 71. The pump body assembly also comprises fixing screws, valve plates and valve plate baffle plates, which are not shown in the figure, and the pump body assembly diagram is shown in figure 2.
The side of the cylinder structure is symmetrically provided with spiral oil guiding grooves 20 penetrating through the axial direction of the cylinder, the rotation direction of the spiral oil guiding grooves 20 is opposite to that of the pump body, the included angle theta between the tangent line of the spiral oil guiding grooves 20 and the axis of the rotating shaft is 0-45 degrees, and the included angle theta=30 degrees is preferable. An annular sinking groove 40 is formed in the root of the short shaft of the upper end face (second end) of the cylinder structure, a plurality of second oil collecting grooves are uniformly distributed along the annular sinking groove 40 towards the outer circle, the rotation direction of each second oil collecting groove is opposite to that of the pump body, an inlet is formed in the annular sinking groove 40, the area from the inlet to the outlet is gradually reduced, and the number of the second oil collecting grooves is 8-15, preferably 12. The lower end face (first end) of the cylinder structure is uniformly distributed with a plurality of first oil collecting grooves along the direction of the outer circle to the axle center, the first oil collecting grooves are of a spiral structure, the rotation direction of the first oil collecting grooves is opposite to the rotation direction of the pump body, the inlet is arranged on the outer circle, the cross section area from the inlet to the outlet is gradually reduced, and the arrangement number of the first oil collecting grooves is 8-15, preferably 12. The depth of the second oil sump is 0.02mm-0.1mm, preferably 0.04mm-0.05mm.
The surface of the contact side of the lower limiting plate and the cylinder structure is provided with an oil supply groove 51, the direction of the oil supply groove 51 is the same as the rotation direction of the pump body, the oil supply groove 51 is imported on an inner circle, the included angle gamma between the axis of the oil supply groove 51 and the tangential line of the inner circle of the lower limiting plate is in the range of 0-90 degrees, preferably 30-60 degrees, and the length of the oil supply groove 51 is preferably just extended out of the outer circle of the cylinder structure, as shown in fig. 15.
Working principle of oil collecting groove on lower end surface of cylinder structure: the frozen oil between the lower short shaft of the cylinder structure and the lower limiting plate enters the lower limiting plate end face oil supply groove 51 under the action of centrifugal force, and when the first oil collecting groove inlet of the lower end face of the cylinder passes through the lower limiting plate oil supply groove 51, the section from the inlet to the outlet is gradually reduced due to the fact that the inlet is large, the inlet is at a high pressure side, and the oil is filled in the first oil collecting groove under the action of dynamic pressure. When the first oil sump rotates past the oil feed groove 51, the rear wall of the oil feed groove 51 scrapes the oil in the first oil sump against the surface of the limiting plate. The first oil collecting grooves on the lower end face are of uniform distribution structures, the inlet angle of the first oil collecting groove on the front is the same as the outlet angle of the first oil collecting groove on the rear, therefore, continuous oil supply can be formed on the surface of the limiting plate, the lubrication condition of the lower end face is improved, and the friction power consumption of the lower end face is correspondingly reduced. Meanwhile, the working area of the first oil collecting groove is improved due to the lubrication condition, the leakage channel of the lower end face is greatly reduced under the action of oil, and the leakage of the lower end face is improved.
Working principle of oil collecting groove on upper end face of air cylinder: the oil storage tank is surrounded by the annular sinking groove at the root part of the short shaft on the air cylinder and the upper limiting plate, the section from the inlet to the outlet of the oil storage tank is gradually reduced, the inlet is at a high pressure side, oil is filled in the second oil storage tank under the action of dynamic pressure, and when the air cylinder rotates, the rear wall of the second oil storage tank distributes oil in the second oil storage tank on the surface of the limiting plate under the action of scraping. The second oil collecting grooves on the upper end face are uniformly distributed, and the inlet angle of the first second oil collecting groove is the same as the outlet angle of the second oil collecting groove on the back, so that continuous oil supply can be formed on the surface of the limiting plate, the lubrication condition of the upper end face is improved, and the friction power consumption of the upper end face is correspondingly reduced. Meanwhile, the lubrication condition of the working area of the oil collecting tank is improved, the leakage channel of the upper end face is greatly reduced under the action of oil, and the leakage of the upper end face is improved.
Working principle of oil collecting groove on side face of air cylinder: 1. the spiral oil guiding groove on the side face of the air cylinder rotates in the opposite direction to the rotating direction of the shaft, and when the inlet of the lower end of the spiral oil guiding groove passes through the oil groove of the limiting plate, oil rises along the spiral oil guiding groove under the action of centrifugal force. 2. When the spiral oil guide groove is in contact with the liner inner wall surface, oil may accumulate in the oil guide groove. The two points lead to the improvement of the circumferential sealing capability of the cylinder and the improvement of circumferential leakage. Meanwhile, the rear edge of the spiral oil guide groove distributes oil on the surface of the cylinder sleeve under the scraping action, so that the lubrication condition of the cylinder and the surface of the cylinder sleeve is improved, and the circumferential friction power consumption is correspondingly reduced.
In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. A cylinder structure, characterized by comprising:
the cylinder comprises a cylinder body (10), wherein a piston hole (11) is formed in the side wall of the cylinder body (10) in a penetrating manner, and an oil guide groove (20) is formed in the outer peripheral surface of the cylinder body (10);
an oil collecting groove (30) is formed in at least one section of the cylinder body (10), the geometric center line of the oil collecting groove (30) is arc-shaped, and the outward extending direction of the oil collecting groove (30) along the radial direction of the cylinder body (10) is opposite to the rotating direction of a rotating shaft penetrating through the cylinder body (10);
the oil collecting tank (30) comprises a first oil collecting tank (31) and a second oil collecting tank (32), the first oil collecting tank (31) is arranged on the end face of the first end of the cylinder body (10), and the second oil collecting tank (32) is arranged on the end face of the second end of the cylinder body (10);
an annular sinking groove (40) is formed in one side, close to the inner wall of the cylinder body (10), of the second end of the cylinder body (10), and one end, close to the inner wall of the cylinder body (10), of the second oil collecting groove (32) is communicated with the annular sinking groove (40).
2. The cylinder structure according to claim 1, characterized in that the cylinder body (10) has a cylindrical structure, and the oil guiding groove (20) is gradually spirally extended from a first end of the cylinder body (10) toward a second end of the cylinder body (10).
3. A cylinder structure according to claim 2, characterized in that the spiral direction of the oil guiding groove (20) is opposite to the rotation direction of the rotating shaft penetrating in the cylinder body (10).
4. The cylinder structure according to claim 1, wherein the oil guide grooves (20) are plural, and the plural oil guide grooves (20) are provided on both sides of the axis of the piston hole (11), respectively.
5. A cylinder structure according to claim 1, characterized in that the first oil sumps (31) are plural, the plural first oil sumps (31) being disposed at intervals along the circumferential direction of the cylinder body (10), the cross-section of the plural first oil sumps (31) gradually increasing outward in the radial direction of the cylinder body (10).
6. A cylinder structure according to claim 1 or 5, characterized in that the oil inlet of the first oil sump (31) is located on the outer circumferential surface of the cylinder body (10).
7. A cylinder structure according to claim 1, characterized in that the second oil sumps (32) are plural, the plural second oil sumps (32) being disposed at intervals along the circumferential direction of the cylinder body (10), the cross-sections of the plural second oil sumps (32) gradually decreasing outwardly in the radial direction of the cylinder body (10).
8. A pump body assembly comprising a cylinder structure, characterized in that the cylinder structure is the cylinder structure of any one of claims 1 to 7.
9. The pump body assembly of claim 8, wherein the pump body assembly comprises:
limiting plate (50), limiting plate (50) be used for with at least one end looks butt of cylinder body (10), the orientation of limiting plate (50) offer oil feed groove (51) on the surface of cylinder body (10) one side, the extending direction of oil feed groove (51) is the same with the direction of rotation of the pivot of wearing to locate in cylinder body (10).
10. The pump body assembly of claim 9, wherein the pump body assembly comprises,
the inner circle of the limiting plate (50) intersects with the geometric center line of the oil supply groove (51) along the radial direction of the cylinder body (10) at a point P, the geometric center line of the oil supply groove (51) has an included angle gamma with the tangent line of the point P on the inner circle of the limiting plate (50), wherein, the gamma is more than or equal to 0 and less than or equal to 90 degrees, and/or
The projection line of the outer circle of the cylinder body (10) on the limiting plate (50) intersects with the oil supply groove (51) at a point P1, the end part of at least one end of the oil supply groove (51) is positioned on the outer side of the outer circle of the cylinder body (10), and an included angle gamma 1 is formed between the geometric center line of the oil supply groove (51) along the radial direction of the cylinder body (10) and the tangent line of the outer circle of the cylinder body (10) passing through the point P1, wherein gamma 1 is more than or equal to 0 and less than or equal to 90 degrees.
11. A rotary cylinder compressor comprising a pump body assembly, wherein the pump body assembly is as claimed in any one of claims 8 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810792947.9A CN108799129B (en) | 2018-07-18 | 2018-07-18 | Cylinder structure, pump body structure and rotary cylinder compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810792947.9A CN108799129B (en) | 2018-07-18 | 2018-07-18 | Cylinder structure, pump body structure and rotary cylinder compressor |
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| Publication Number | Publication Date |
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| CN108799129A CN108799129A (en) | 2018-11-13 |
| CN108799129B true CN108799129B (en) | 2023-10-03 |
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| CN201810792947.9A Active CN108799129B (en) | 2018-07-18 | 2018-07-18 | Cylinder structure, pump body structure and rotary cylinder compressor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109595159A (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 |
| 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 |
| CN112664458A (en) * | 2020-12-29 | 2021-04-16 | 珠海格力电器股份有限公司 | Rotary cylinder compressor |
| CN112610492A (en) * | 2020-12-29 | 2021-04-06 | 珠海格力电器股份有限公司 | Pump body assembly and fluid machine |
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| CN208474121U (en) * | 2018-07-18 | 2019-02-05 | 珠海格力电器股份有限公司 | Air cylinder structure, pump assembly and turn cylinder compressor |
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| JPH0988852A (en) * | 1995-09-18 | 1997-03-31 | Daikin Ind Ltd | Swing compressor |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108799129A (en) | 2018-11-13 |
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