CN108087244B - Compressor lubricating structure and compressor - Google Patents
Compressor lubricating structure and compressor Download PDFInfo
- Publication number
- CN108087244B CN108087244B CN201711305581.XA CN201711305581A CN108087244B CN 108087244 B CN108087244 B CN 108087244B CN 201711305581 A CN201711305581 A CN 201711305581A CN 108087244 B CN108087244 B CN 108087244B
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- 230000001050 lubricating effect Effects 0.000 title claims description 10
- 238000005461 lubrication Methods 0.000 claims abstract description 30
- 239000010687 lubricating oil Substances 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 239000003921 oil Substances 0.000 claims description 155
- 238000005299 abrasion Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
- F04B39/0292—Lubrication of pistons or cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/08—Constructional features providing for lubrication
Abstract
The application provides a compressor lubrication structure and a compressor, wherein the lubrication structure comprises a piston body, a slide tube, a spherical head and a crankshaft; the piston body is connected with the slide tube; the slide tube is of a hollow structure; the spherical head can be arranged in the hollow structure of the slide tube in a rolling way; the crankshaft is connected with the spherical head so that lubricating oil on the crankshaft is transmitted to the slide tube through the spherical head; by adopting the scheme, the friction power consumption of the spherical head structure friction pair in the compressor is effectively reduced, the lateral force of the piston to the cylinder is reduced, and the friction power of the compressor is reduced, so that the mechanical property and the coefficient of performance of the compressor are improved, the operation reliability of the cylinder and the piston is increased, the assembly and disassembly problems of the piston and the spherical head of the compressor are effectively simplified, and the discharge expansion, the refrigerating capacity and the application range of the compressor are increased.
Description
Technical Field
The application belongs to the technical field of compressor components, and particularly relates to a compressor lubricating structure and a compressor.
Background
The current development direction of the compressor for the household appliances tends to be miniaturized, high-efficiency and low-noise; the small compressor has the characteristics of small refrigerating capacity, small external size, low noise and the like; in the conventional small-sized compressor, a rotary compressor or a reciprocating piston compressor is generally adopted, for example, in chinese patent CN201121566Y, a small-sized piston sliding tube type compressor is disclosed, a crank of a crankshaft in the compressor is sleeved with a cross head, the cross head sleeve can slide freely in a sliding tube, a piston body perpendicular to the sliding tube is fixed on the sliding tube in a welding manner, the piston body passes through a cylinder hole on a cylinder body to form a cylinder with the cylinder body and a cylinder cover, the cylinder body and the cylinder cover are fixedly installed on a crank case by screws after being matched together, and the rotation motion of the crankshaft driven by a motor is converted into the reciprocating linear motion of the piston body by the movement conversion of the cross head and the sliding tube.
Compared with the existing crank-connecting rod driven reciprocating piston compressor, the piston slide tube type compressor has the advantages that acting force of a piston on a cylinder in a compression process is remarkably reduced, small eccentric amount of a crankshaft can be achieved by adopting a slide tube structure, the structure is compact, the performance is more reliable than that of the crank-connecting rod type piston compressor, and the piston slide tube type compressor has the characteristics of being simpler in part machining and lower in cost.
The above-described piston slide tube compressor construction also has the following limitations and problems:
(1) The contact area of the sliding tube type piston body and the air cylinder is overlarge, the piston body is not provided with a corresponding lubricating oil groove, an oil film is not easy to form on an overlarge friction surface, the friction power consumption is large, and the piston and the air cylinder are seriously worn;
(2) The contact area of the cylindrical cross head and the sliding tube is large, friction of the two parts is sliding friction during operation, so that the sliding tube and the cylindrical cross head are seriously worn, reliable operation of the compressor is not facilitated, and the sliding tube is oversized;
(3) The existing sliding tube, the cylindrical cross head and the piston body are complex in structure and disassembly, so that disassembly and assembly of a crankshaft, a piston and the cylindrical cross head of a compressor are not facilitated, and the oversized piston body is not beneficial to expansion of the displacement of the compressor.
Based on the technical problems existing in the compressor, no relevant solution exists yet; there is therefore an urgent need to seek an effective solution to the above problems.
Disclosure of Invention
The application aims at solving the defects in the prior art, and provides a compressor lubrication structure and a compressor, aiming at solving the problems of complex lubrication structure and high friction power consumption of the existing compressor.
The application provides a compressor lubrication structure, which comprises a piston body, a slide tube, a spherical head and a crankshaft, wherein the piston body is provided with a piston seat; the piston body is connected with the slide tube; the slide tube is of a hollow structure; the spherical head can be arranged in the hollow structure of the slide tube in a rolling way; the crankshaft is slidably coupled to the ball head such that lubricant on the crankshaft is transferred to the slide tube through the ball head.
Further, a spherical head oil outlet is arranged in the spherical head; the crankshaft passes through the spherical head and is in sliding connection with the spherical head, so that lubricating oil on the crankshaft is transmitted into the slide tube through the spherical oil outlet.
Further, an oil conveying groove is formed in the crankshaft; the crankshaft passes through the spherical head and the oil conveying groove is communicated with the oil outlet of the spherical head.
Further, the crankshaft passes through the spherical head via a stub shaft; the short shaft is provided with an oil delivery passage and is communicated with a spherical oil outlet; the oil conveying groove is a spiral oil groove; the spiral oil groove is arranged on the long shaft of the crankshaft and is communicated with the oil conveying channel.
Further, a matching surface annular oil groove is also formed in the spherical head, and an oil outlet of the spherical head is communicated with the matching surface annular oil groove; lubricating oil on the crankshaft is transmitted into the slide tube through the annular oil groove of the matching surface and the spherical oil outlet.
Further, the slide tube is a split slide tube and is provided with a through groove in a radial penetrating manner; the crankshaft passes through the through groove and the spherical head through the short shaft; the oil delivery groove is communicated with the oil outlet of the spherical head through an oil delivery channel on the short shaft.
Further, the slide tube is a split slide tube; the slide tube dividing surface of the split slide tube is provided with a notch.
Further, the device also comprises a clamp; the split sliding tube is synthesized by two sliding tube sheets; the clamp is clamped at two ends of the split sliding pipe and is fixed through screws.
Further, the slit is a stepped slit or an inclined slit.
Further, the piston body is also provided with a first annular oil groove.
Further, a piston oil duct and a piston oil outlet are arranged in the piston body; the piston oil outlet is communicated with the piston oil duct; the slide tube is provided with a through oil duct; the piston oil duct is communicated with the spherical head oil outlet through the oil duct.
Further, the slide tube is an integrated slide tube; the piston body comprises a piston head and a piston rod; the piston oil duct is arranged in the piston rod; the piston oil outlet comprises a piston side oil outlet and a piston lower oil outlet; the piston side oil outlet and the piston lower oil outlet are arranged in the piston head and are communicated with the piston oil duct.
Further, a second annular oil groove is formed in the outer surface of the piston head; the second annular oil groove is communicated with the piston oil outlet.
Further, the piston body is integrally formed with the sliding tube or is in threaded connection or tenon-rivet connection.
Correspondingly, the application also provides a compressor, which comprises a lubricating structure; the lubrication structure is the compressor lubrication structure.
By adopting the compressor lubrication structure, the friction power consumption at the friction pair of the spherical head structure is effectively reduced, the lateral force of the piston to the cylinder is reduced, and the friction power of the compressor is reduced, so that the mechanical performance and the coefficient of performance of the compressor are improved; and through changing the lubricating structure of the piston, improve the lubrication condition, reduce the friction of cylinder and piston, increase the operational reliability of cylinder and piston, through changing the sliding tube structure in the lubricating structure or changing the structure of piston, the assembly and disassembly problem of compressor piston and ball head structure is effectively simplified, increase the discharge capacity expansion, refrigerating output and application scope of compressor.
Drawings
The application will be described in further detail with reference to the drawings and the detailed description.
The application will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a lubrication structure of a compressor according to an embodiment of the present application;
FIG. 2 is a schematic view of the structure of the ball head of the present application;
FIG. 3 is a cross-sectional view of a ball head of the present application;
FIG. 4 is a schematic view of a split slide tube structure according to the present application;
FIG. 5 is a sectional view of a split slide tube of the present application;
FIG. 6 is a schematic diagram of a compressor lubrication structure according to an embodiment of the present application;
FIG. 7 is a second cross-sectional view of an embodiment of a compressor lubrication structure according to the present application;
fig. 8 is a schematic view showing the structure of another embodiment of the piston body of the present application;
fig. 9 is a structural cross-sectional view of another embodiment of the piston body of the present application.
In the figure: 1. a piston body; 2. a spherical head; 3. a split slide tube; 4. a crankshaft; 5. an oil outlet of the spherical head; 6. an annular oil groove of the matching surface; 7. a first annular oil groove; 8. a slide tube dividing surface; 9. a clamp; 10. a screw; 11. an integral piston; 12. the joint of the piston and the slide tube; 13. an integral slide tube; 14. an oil outlet of the piston; 15. a piston oil passage; 16. a connection part; 17. an oil passage; 18. a spiral oil groove; 19. an oil outlet at the side of the piston; 20. a lower oil outlet of the piston; 21. a thread; 22. and a second annular oil groove.
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.
As shown in fig. 1 to 9, the present application provides a compressor lubrication structure, which is mainly applied to a small-sized compressor for home use; the lubricating structure comprises a piston body 1, a slide tube, a spherical head 2 and a crankshaft 4; the sliding tube may be a split sliding tube 3 or an integral sliding tube 13, and in this embodiment, the split sliding tube 3 is taken as an example for illustration; the piston body 1 is connected with the split sliding tube 3 in a threaded connection or tenon-rivet connection or integrated formation mode; it should be noted that: the integral molding of the piston body and the sliding tube can be understood as the connection mode of the sliding tube and the piston body in the main conception of the application, and the aim of improving the performance of the compressor can be achieved; further, the split sliding tube 3 is of a hollow structure and is used for accommodating the spherical head 2; the method comprises the following steps: the spherical head 2 can be arranged in the hollow structure of the split sliding tube 3 in a rolling way; the crankshaft 4 is in sliding or rotating connection with the spherical head 2, so that lubricating oil on the crankshaft 4 is transmitted to the split sliding tube 3 through the spherical head 2 to fully lubricate the split sliding tube 3; by adopting the scheme, the friction between the spherical head and the sliding pipe fitting can be reduced, so that the friction power consumption of the compressor is reduced, and the coefficient of performance of the compressor is improved.
Preferably, in combination with the above-described solution, as shown in fig. 1 to 9, in the present embodiment, a spherical head oil outlet 5 is provided in the spherical head 2 to form a spherical cross head structure; the spherical head 2 can be arranged in the slide tube in a rolling way; the crankshaft 4 passes through the spherical head 2 and is in sliding connection with the spherical head 2, so that lubricating oil on the crankshaft 4 is transmitted into the slide tube through the spherical oil outlet 5, specifically, an oil conveying groove and an oil conveying channel on the crankshaft 4 are communicated with the spherical head oil outlet 5, and the lubricating oil on the crankshaft 4 is transmitted to the slide tube through the crankshaft; further, the crankshaft 4 passes through the spherical head 2 via a stub shaft; the short shaft is provided with an oil delivery passage and is communicated with a spherical oil outlet 5; the oil conveying groove is a spiral oil groove 18; the spiral oil groove 18 is arranged on the long shaft of the crankshaft 5 and is communicated with the oil conveying channel; by adopting the spherical cross head structure, the contact area between the cylindrical cross head and the slide tube in the existing compressor is changed to be large by replacing the spherical cross head structure with the existing cylindrical cross head, so that the friction between the spherical cross head and the slide tube is changed from sliding friction to rolling friction, the rotation of a crankshaft is driven by the rotation of a motor, lubricating oil is pumped out of the spiral oil groove 18 of the long shaft of the crankshaft 4 and an oil conveying channel on a short shaft through the action of centrifugal force in the spiral oil groove 18 of the long shaft of the crankshaft 4, an oil film is formed on the matching surface of the spherical head 2 and the short shaft of the crankshaft 4, the abrasion of the short shaft of the crankshaft is reduced by the oil, and the lubricating oil is thrown onto the slide tube through the spherical head oil outlet 5 of the spherical head 2 to fully lubricate the slide tube; the spherical cross head structure solves the problems of high friction power consumption and serious part abrasion of the traditional cylindrical cross head structure, the friction mode between the spherical head structure and the sliding tube is changed from sliding friction to rolling friction, the friction loss between the spherical head structure and the sliding tube is effectively reduced, the service lives of the sliding tube and the spherical head structure are prolonged, the friction surfaces of the spherical head structure and the sliding tube are fully lubricated by changing the lubricating oil way of the cross head, the friction power consumption of a compressor can be effectively reduced, and the performance coefficient of the compressor is improved.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 1 to 9, in this embodiment, a mating surface annular oil groove 6 is further provided in the spherical head 2, the shape of the mating surface annular oil groove 6 is not limited, several branch oil channels can be added on two sides of the mating surface annular oil groove 6, and the branch oil channels are not communicated with the end surface; the spherical head oil outlet 5 is communicated with the matching surface annular oil groove 6; the lubricating oil on the crankshaft 4 is transmitted into the slide tube through the annular oil groove 6 and the spherical oil outlet 5 of the matching surface; specifically, a matching surface annular oil groove 6 is formed in the matching surface of the spherical head 2 and the short shaft of the crankshaft 4, a spherical head oil outlet 5 is formed in the radial direction of the spherical head 2, the crankshaft 4 is driven to rotate by the rotation of a compressor motor, lubricating oil is pumped out of an oil conveying channel on the short shaft of the crankshaft and a spiral oil groove 18 on the long shaft by the action of centrifugal force in the oil conveying groove of the crankshaft 4, an oil storage groove is formed in the matching surface annular oil groove 6 of the spherical head 2, the formation of an oil film on the short shaft is facilitated, the abrasion of the short shaft of the crankshaft is reduced, the lubricating oil is thrown onto a slide pipe through the spherical head oil outlet 5, and the slide pipe slide way is fully lubricated; furthermore, the piston body 1 of the application is also provided with the first annular oil groove 7, and lubricating oil splashed by the crankshaft can effectively form an oil film on the piston in the running process through the collection of the first annular oil groove 7, so that the piston and the cylinder are effectively lubricated, the contact area of the piston and the cylinder mirror surface is reduced, and the friction surface is reduced, thereby improving the performance of the compressor.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 1, 5 and 6, in this embodiment, the sliding tube is a split sliding tube 3, and the sliding tube radially penetrates through and is provided with a waist-shaped through slot, the center of the spherical head 2 is provided with a through hole, and the spherical head 2 is arranged in the sliding tube and is located between two waist-shaped through slots in the radial direction; the crankshaft 4 passes through the waist-shaped through groove of the slide tube through the short shaft and is in sliding fit with the through hole of the spherical head 2, and meanwhile, the oil conveying groove on the long shaft of the crankshaft 4 is communicated with the spherical head oil outlet 5 through the oil conveying channel on the short shaft; therefore, the cross head structure is more compact, and the volume of the compressor is reduced.
Preferably, in combination with the above solution, as shown in fig. 1, 5 and 6, in this embodiment, the slide tube is a split slide tube 3; the split sliding tube 3 is synthesized by a plurality of sliding tube pieces; the connecting parts of the sliding tube sheets are provided with notches, namely notches are arranged on the sliding tube dividing surfaces 8; further, the notch can be a step notch or an inclined notch, and the notch position is not limited to the upper and lower parts of the slide tube, and the notch is used for positioning the slide tube and preventing the slide tube from misplacement caused by up and down movement of the slide tube; further, the device also comprises a clamp 9; the split slide tube 3 is synthesized by two slide tube sheets; the clamp 9 is clamped at two ends of the split sliding tube 3 and is fixed through a screw 10; the split sliding tube 3 is locked and fixed through a clamp 9 steel belt and a screw 10; the sliding tube type compressor can be used for assembling and disassembling parts such as a crankshaft, a piston, a spherical head structure and the like on the premise of not disassembling a cylinder seat by the split sliding tube 3, and the simplification of the assembly process of the compressor is facilitated.
Preferably, in combination with the above-mentioned scheme, as shown in fig. 6 to 9, in this embodiment, the piston body is a monolithic piston 11, and a piston oil passage 15 and a piston oil outlet 14 are provided in the monolithic piston 11; the piston oil outlet 14 is communicated with the piston oil duct 15; the slide tube is provided with a through oil duct 17; the piston oil duct 15 is communicated with the spherical head oil outlet through an oil duct 17 on the slide tube; specifically, the oil through passage 17 on the slide tube is corresponding to the oil through passage 15, lubricating oil is connected to the piston oil passage 15 of the piston from the oil outlet hole of the spherical head through the oil through passage 17 on the slide tube through the oil outlet of the crankshaft, then the cylinder is lubricated through the piston oil outlet 14, and through the communication of the oil passages, each friction part can be effectively lubricated, and the friction power consumption of the compressor is reduced; by adopting the scheme, the device has the characteristics of simple structure, small number of parts, stability, reliability and easy disassembly and assembly; through simplifying split type slide tube 3 structure and novel piston structure, change the structural style of piston and change the connected mode of piston and slide tube, its purpose is the reduction part quantity, is favorable to the vertical centering of piston and slide tube and is favorable to changing the cylinder diameter, widens the displacement of compressor to change the application scope of compressor, reduce manufacturing and assembly degree of difficulty.
Preferably, in combination with the above-described solution, as shown in fig. 6 to 9, in this embodiment, the slide tube is an integral slide tube 13; the piston body 1 comprises a piston head and a piston rod; the piston oil duct 15 is arranged in the piston rod; the piston oil outlet 14 comprises a piston side oil outlet 19 and a piston lower oil outlet 20; the piston side oil outlet 19 and the piston lower oil outlet 20 are arranged in the piston head and are communicated with the piston oil duct 15, and are used for throwing out lubricating oil in the piston oil duct 15 to lubricate all friction parts.
Preferably, in combination with the above, as shown in fig. 6 to 9, in this embodiment, the piston includes a piston head and a piston rod; the outer surface of the piston head is also provided with a second annular oil groove 22, and the second annular oil groove 22 is communicated with the piston oil outlet 14; the piston rod is connected to the slide tube by means of a screw thread 21.
Correspondingly, in combination with the scheme, the application also provides a compressor, which comprises a lubricating structure; the lubrication structure is the compressor lubrication structure.
In the existing small compressor, a lubrication structure is a vital moving part in a piston slide tube type compressor, a motor drives a crankshaft to rotate, and the rotating motion is converted into transverse motion of the cross head structure and linear reciprocating motion of a piston through the cross head structure, so that the rotating motion is converted into linear motion; by adopting the lubricating structure provided by the application, the lateral force of the piston to the cylinder can be effectively reduced, and the friction power consumption of the piston and the cylinder can be greatly reduced, so that the performance coefficient of the compressor is improved, the abrasion of the piston and the cylinder is reduced, and the running reliability of the compressor is ensured; the friction power consumption of the compressor is reduced by changing the lubrication structure, so that the performance of the compressor can be remarkably improved; through changing slide tube structure and piston structure, be favorable to the assembly and disassembly of ball head structure and piston, do benefit to the discharge capacity expansion of compressor simultaneously, increase the application scope of compressor.
The above description is only a preferred embodiment of the present application, and is not intended to limit the present application in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present application fall within the protection scope of the present application.
Claims (13)
1. A lubrication structure of a compressor is used for a piston slide tube type compressor and is characterized by comprising a piston body, a slide tube, a spherical head and a crankshaft; the piston body is connected with the slide tube; the slide tube is of a hollow structure; the spherical head can be arranged in the hollow structure of the slide tube in a rolling way; the crankshaft is in sliding connection with the spherical head, so that lubricating oil on the crankshaft is transmitted to the slide tube through the spherical head, and the slide tube is lubricated; a spherical head oil outlet is arranged in the spherical head; the crankshaft passes through the spherical head and is in sliding connection with the spherical head, so that lubricating oil on the crankshaft is transmitted into the slide tube through the spherical oil outlet; the spherical head is internally provided with a matching surface annular oil groove, and the spherical head oil outlet is communicated with the matching surface annular oil groove; and lubricating oil on the crankshaft is transmitted into the slide tube through the annular oil groove of the matching surface and the spherical oil outlet.
2. The compressor lubrication structure according to claim 1, wherein the crankshaft is provided with an oil delivery groove; the crankshaft penetrates through the spherical head, and the oil conveying groove is communicated with the oil outlet of the spherical head.
3. The compressor lubrication structure of claim 2, wherein the crankshaft passes through the spherical head via a stub shaft; the short shaft is provided with an oil conveying passage and is communicated with the spherical oil outlet; the oil conveying groove is a spiral oil groove; the spiral oil groove is arranged on the long shaft of the crankshaft and is communicated with the oil conveying channel.
4. The compressor lubrication structure according to claim 2, wherein the slide pipe is a split slide pipe, and a through groove is radially provided therethrough; the crankshaft passes through the through groove and the spherical head through a short shaft; the oil conveying groove is communicated with the spherical head oil outlet through an oil conveying channel on the short shaft.
5. The compressor lubrication structure of claim 1, wherein the slide tube is a split slide tube; and a notch is arranged at the slide tube dividing surface of the split slide tube.
6. The compressor lubrication structure of claim 5, further comprising a clip; the split sliding tube is synthesized by two sliding tube sheets; the clamp is clamped at two ends of the split sliding pipe and is fixed through screws.
7. The compressor lubrication structure of claim 5, wherein the cutout is a stepped cutout or an inclined cutout.
8. The compressor lubrication structure of claim 1, wherein the piston body is further provided with a first annular oil groove.
9. The compressor lubrication structure according to claim 1, wherein a piston oil passage and a piston oil outlet are provided in the piston body; the piston oil outlet is communicated with the piston oil duct; the slide tube is provided with an oil passage; the piston oil duct is communicated with the spherical head oil outlet through the oil duct.
10. The compressor lubrication structure of claim 9, wherein the slide tube is an integral slide tube; the piston body comprises a piston head and a piston rod; the piston oil duct is arranged in the piston rod and extends to the piston head; the piston oil outlet comprises a piston side oil outlet and a piston lower oil outlet; the piston side oil outlet and the piston lower oil outlet are arranged in the piston head and are communicated with the piston oil duct.
11. The compressor lubrication structure of claim 10, wherein the piston head outer surface is further provided with a second annular oil groove; the second annular oil groove is communicated with the piston oil outlet.
12. The compressor lubrication structure according to any one of claims 1 to 11, wherein the piston body is integrally formed with the slide tube or is screw-connected or rivet-and-tenon-connected.
13. The compressor is a piston slide tube type compressor, and the piston slide tube type compressor comprises a lubricating structure; the compressor lubrication structure according to any one of the preceding claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711305581.XA CN108087244B (en) | 2017-12-11 | 2017-12-11 | Compressor lubricating structure and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711305581.XA CN108087244B (en) | 2017-12-11 | 2017-12-11 | Compressor lubricating structure and compressor |
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| CN108087244A CN108087244A (en) | 2018-05-29 |
| CN108087244B true CN108087244B (en) | 2023-11-03 |
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| CN201711305581.XA Active CN108087244B (en) | 2017-12-11 | 2017-12-11 | Compressor lubricating structure and compressor |
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| CN109611316A (en) * | 2018-12-11 | 2019-04-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating plant with it |
| CN117167237B (en) * | 2023-09-20 | 2024-04-16 | 广州万宝集团压缩机有限公司 | Motion mechanism, compressor and refrigeration equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418739A1 (en) * | 1994-02-09 | 1995-08-10 | Foron Hausgeraete Gmbh | Crank assembly for refrigerator compressor |
| CN1624327A (en) * | 2003-12-03 | 2005-06-08 | 丹福斯压缩器有限公司 | Piston compressor |
| CN201218196Y (en) * | 2008-05-15 | 2009-04-08 | 上海海立（集团）股份有限公司 | Enclosed reciprocating air compressor |
| CN201615046U (en) * | 2009-09-24 | 2010-10-27 | 加西贝拉压缩机有限公司 | Splash lubrication structure used for controlling oil circulation volume of compressor |
| CN207879562U (en) * | 2017-12-11 | 2018-09-18 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor lubrication structure and compressor |
-
2017
- 2017-12-11 CN CN201711305581.XA patent/CN108087244B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418739A1 (en) * | 1994-02-09 | 1995-08-10 | Foron Hausgeraete Gmbh | Crank assembly for refrigerator compressor |
| CN1624327A (en) * | 2003-12-03 | 2005-06-08 | 丹福斯压缩器有限公司 | Piston compressor |
| CN201218196Y (en) * | 2008-05-15 | 2009-04-08 | 上海海立（集团）股份有限公司 | Enclosed reciprocating air compressor |
| CN201615046U (en) * | 2009-09-24 | 2010-10-27 | 加西贝拉压缩机有限公司 | Splash lubrication structure used for controlling oil circulation volume of compressor |
| CN207879562U (en) * | 2017-12-11 | 2018-09-18 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor lubrication structure and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108087244A (en) | 2018-05-29 |
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