CN114909272A - Cylinder block for improving performance of compressor - Google Patents
Cylinder block for improving performance of compressor Download PDFInfo
- Publication number
- CN114909272A CN114909272A CN202210385340.5A CN202210385340A CN114909272A CN 114909272 A CN114909272 A CN 114909272A CN 202210385340 A CN202210385340 A CN 202210385340A CN 114909272 A CN114909272 A CN 114909272A
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- piston
- cylinder
- hole
- heat dissipation
- compressor
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 79
- 239000010687 lubricating oil Substances 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000004323 axial length Effects 0.000 claims description 5
- 230000008030 elimination Effects 0.000 claims description 5
- 238000003379 elimination reaction Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000000707 wrist Anatomy 0.000 claims 2
- 230000000694 effects Effects 0.000 description 13
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000005057 refrigeration Methods 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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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
-
- 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
- F04B39/02—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
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/0276—Lubrication characterised by the compressor type the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors
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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
- F04B39/06—Cooling; Heating; Prevention of freezing
Abstract
The invention discloses a cylinder seat for improving the performance of a compressor, wherein the inner periphery of one end of a cylinder hole, which is close to a crankshaft mounting hole, is provided with a plurality of guide walls, heat dissipation grooves are arranged between the guide walls, the surface of the inner periphery of each guide wall is flush with the original inner peripheral cylindrical surface of the cylinder hole, the guide walls are all arranged along the length direction of the cylinder hole, a piston of the compressor reciprocates towards the cylinder hole along the guide walls, and the clearance between each heat dissipation groove and the outer periphery of the piston is 0.03-7 mm; a abdicating groove is also arranged above the cylinder hole, and the heat dissipation groove is also arranged on the inner periphery of the cylinder hole between the abdicating groove and the guide wall; through the arrangement of the heat dissipation grooves, the air cylinder seat has the advantages that heat dissipation is better, lubricating oil flows more fully, the temperature of an air cylinder is reduced, the power consumption of a compressor is reduced, and the efficiency of the compressor is improved.
Description
Technical Field
The invention relates to the technical field of refrigeration compressors, in particular to a cylinder seat for improving the performance of a compressor.
Background
In the piston type refrigeration compressor, there are component assemblies such as bent axle, connecting rod, piston pin, piston and cylinder block (or called crankcase), and the cylinder is mostly the whole face of cylinder, for making things convenient for connecting rod, piston pin assembly to open on cylinder block upper portion to have a groove of stepping down. For example, in 2018, the air compressor and the refrigeration device disclosed in the chinese utility model patent (publication No. CN208010547U), a piston is disposed in a cylinder bore of a cylinder block, one end of a crankshaft is connected to the cylinder block, and the piston basically reciprocates in a full-circle cylindrical surface of the cylinder bore.
Because the excircle of the piston is mostly an integral cylindrical surface, the excircle of the piston can be provided with the air-breathing groove in order to reduce the contact area, and the piston wall is generally thinner in order to reduce the weight of the piston (the overweight can consume more power), so the air-breathing groove is shallower, and the shallower air-breathing groove is not good in heat dissipation.
The distance between the piston air-removing groove and the cylinder is smaller, and the clearance between the piston and the cylinder is smaller (usually less than 0.03mm), so a large amount of heat generated by compressing gas in the cylinder cannot be well dissipated, a large amount of compression work is wasted, and in addition, lubricating oil is easy to accumulate in the air-removing groove and is easy to bring into the cylinder when the piston moves.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a cylinder block for improving the performance of a compressor.
In order to realize the purpose, the invention adopts the technical scheme that:
a cylinder block for improving the performance of a compressor is provided with a cylinder hole, a plurality of guide walls are arranged on the inner periphery of one end, close to a crankshaft mounting hole, of the cylinder hole, heat dissipation grooves are formed among the guide walls, the surface of the inner periphery of each guide wall is flush with the original inner peripheral cylindrical surface of the cylinder hole, the guide walls are all arranged along the length direction of the cylinder hole, a piston of the compressor reciprocates towards the cylinder hole along the guide walls, the gap between each heat dissipation groove and the outer periphery of the piston is 0.03-7 mm, and the heat dissipation grooves are used for dissipating heat in a cylinder and flowing lubricating oil; the upper portion of cylinder hole still is equipped with the groove of stepping down, the groove of stepping down with cylinder hole inner periphery between the guide wall also is equipped with the radiating groove.
The cylinder seat can effectively increase the inner wall of the cylinder hole, namely the gap and the heat dissipation area between the heat dissipation groove and the outer circle of the piston, by arranging the guide wall and the heat dissipation groove on the original cylinder surface cylinder hole, so that the heat dissipation in the cylinder is convenient, the flowing space and position of lubricating oil on the piston are more, the heat is easier to take away, the lubricating oil can not be accumulated in the air dissipation groove on the outer circle of the piston in a large amount, and the lubricating oil can be prevented from being brought into the compression space of the cylinder in the reciprocating process of the piston; because the heat dissipation is better, the lubricating oil flows more fully, can also avoid extravagant a large amount of compression work on the whole.
The piston is arranged in the cylinder hole, the guide wall is arranged on the side, close to the crankshaft mounting hole, of the cylinder hole, the guide wall and the heat dissipation groove are arranged on the side, close to the crankshaft mounting hole, of the cylinder hole, the movement stroke of the piston in the cylinder is not reduced, and on the contrary, under the same piston stroke, the cylinder is higher in efficiency and smaller in function loss.
The arrangement of the heat dissipation groove can also reduce the weight of the cylinder seat, so that the weight of the whole compressor is reduced, and the reduction of the weight is also beneficial to the control of power consumption. Meanwhile, due to the arrangement of the heat dissipation grooves, when the piston passes through the section, the contact area between the piston and the inner periphery of the cylinder hole is reduced, the friction area of the piston is reduced, the power consumption is reduced, and the piston is beneficial to improving the beneficial work of the piston.
The cylinder seat can well reduce the whole temperature of the cylinder due to the good heat dissipation effect brought by the heat dissipation groove, reduces the power consumption of the compressor, improves the efficiency and is also favorable for the refrigeration effect of the refrigeration compressor; the temperature of the exhaust gas of the cylinder at the exhaust end is also reduced, which is also beneficial for the exhaust.
Furthermore, the pair of guide walls are symmetrically arranged on two sides of the inner periphery of one end, close to the crankshaft mounting hole, of the cylinder hole, the middle lines of the pair of guide walls are spaced by 180 degrees, and the plane where the middle lines of the pair of guide walls are located coincides with the central axis of the cylinder hole.
The pair of guide walls which are symmetrically arranged can play a better guide role, the stress is balanced, the stability can be ensured, and the reciprocating motion of the piston is not influenced.
Furthermore, the heat dissipation groove is an arc-shaped groove, and an inclined opening is formed in the outer side of one end, close to the crankshaft mounting hole, of the intersection of the heat dissipation groove and the guide wall. The guide wall is two walls that are small relative to the cylinder bore, that is, the area of the heat dissipation groove is relatively large, so that the heat dissipation space can be increased.
Further, if the axial length of the heat dissipation groove is a, and the axial distance between the closed end face of the piston and the end face, close to the crankshaft mounting hole, of the cylinder hole when the piston runs to a bottom dead center (such as a minimum stroke position) is b, then b-a is larger than or equal to 2 mm.
The arrangement can ensure that a small section of the end part of the piston in the reciprocating motion process cannot be separated from the whole cylindrical surface, the integrity and the sealing property of the compression part of the cylinder are ensured, and lubricating oil cannot actively enter a compression space when the piston moves.
Further, the piston is further provided with a small hole, and when the piston moves to the position of the bottom dead center, the small hole is positioned at the position of the heat dissipation groove and is communicated with the heat dissipation groove.
The arrangement of the small holes is convenient for lubricating oil and gas in the piston to flow outwards, and the heat dissipation of the small holes is realized while the peripheral lubrication of the piston is ensured.
Further, if the intersection point of the heat dissipation groove, the guide wall and the complete inner peripheral cylindrical surface of the cylinder bore is a point c, the distance from the hole edge of the small hole to the point c is 0-8 mm. The piston can be guaranteed to radiate heat through the small hole and the lubricating oil can flow in an interaction mode in the reciprocating motion process every time, the lubricating oil cannot keep a high-temperature state for a long time, and the temperature of the lubricating oil is reduced in the radiating process.
Furthermore, a vertical through hole is formed in the heat dissipation groove located in the lower half portion, and the through hole and the abdicating groove are correspondingly formed.
The through hole is arranged below the cylinder seat, so that the heat dissipation can be accelerated through the through hole, and excessive lubricating oil is prevented from being accumulated in the cylinder. The abdication groove just corresponds to the upper part, when the piston moves to the upper part, the upper part and the lower part of the piston can be communicated with the external space, and the heat dissipation effect is very good.
The size of the through hole is slightly larger than the axial length of the heat dissipation groove, and the area of a heat dissipation channel is increased under the condition that the strength and the stability of the cylinder seat are not damaged.
Further, when the piston moves to the bottom dead center position, a piston pin of the piston is located above the through hole, and the outer diameter of the piston pin is smaller than the inner diameter of the through hole.
Further, a piston pin of the piston is provided with a through hole which axially penetrates through the middle of the piston pin, and the periphery of the piston is also provided with a gas elimination groove which is circumferentially arranged in a surrounding manner, wherein the gas elimination groove passes through a piston pin hole of the piston.
The middle through hole is formed in the piston pin, so that lubricating oil and gas can flow conveniently.
Compared with the prior art, the invention has the beneficial effects that: 1. according to the cylinder seat, the guide wall and the heat dissipation groove are arranged on the original cylindrical cylinder hole, so that the gap and the heat dissipation area between the inner wall of the cylinder hole, namely the heat dissipation groove and the outer circle of the piston can be effectively increased, heat dissipation in the cylinder is facilitated, heat can be taken away more easily, lubricating oil cannot be accumulated in the air dissipation groove in the outer circle of the piston in a large amount, and the lubricating oil can be prevented from being brought into a compression space of the cylinder in the reciprocating process of the piston; 2. the heat dissipation is better, the lubricating oil flows more sufficiently, the temperature of the air cylinder is reduced, the power consumption of the compressor is reduced, and the efficiency of the compressor is improved; 3. the guide wall can maintain the reciprocating motion of the piston while the heat dissipation groove achieves a good heat dissipation effect, so that a good guide effect is achieved, the motion stroke of the piston in the cylinder cannot be reduced, and the cylinder is higher in efficiency and smaller in function loss under the same piston stroke; 4. the arrangement of the heat dissipation groove can also reduce the weight of the cylinder seat, so that the weight of the whole compressor is reduced, and the reduction of the weight is also beneficial to the control of power consumption; meanwhile, due to the arrangement of the heat dissipation grooves, when the piston passes through the section, the contact area between the outer circle of the piston and the inner circle of the cylinder hole is reduced, the friction area of the piston is reduced, and the power consumption is reduced.
Drawings
FIG. 1 is a schematic view of an overall structure of a cylinder block for improving performance of a compressor according to the present invention;
FIG. 2 is a schematic view of a half-section of a cylinder block for improving compressor performance in accordance with the present invention;
FIG. 3 is a schematic view of the overall construction of the piston of the present invention;
FIG. 4 is a schematic view of a half-section of the piston of the present invention;
FIG. 5 is a schematic view of a half-section of a piston pin according to the present invention;
FIG. 6 is a schematic top view of a cylinder block for improving compressor performance according to the present invention;
in the figure: 1. a cylinder bore; 2. a guide wall; 3. a heat sink; 4. a bevel opening; 5. a vertical groove; 6. a yielding groove; 7. a through hole; 8. a piston; 9. a piston pin bore; 10. a degassing tank; 11. a small hole; 12. a piston pin; 13. a middle through hole.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 and 2, a cylinder block for improving performance of a compressor, which has a cylinder bore 1, the inner circumference of one end of the cylinder hole 1 close to the crankshaft mounting hole is provided with a plurality of guide walls 2, a heat dissipation groove 3 is arranged between the guide walls 2, the inner circumference of the guide wall 2 is flush with the original inner circumference cylindrical surface of the cylinder bore 1, the guide walls 2 are all arranged along the length direction of the cylinder bore 1, the piston 8 of the compressor reciprocates along the guide walls 2 to the cylinder bore 1, the heat dissipation groove 3 is used for dissipating heat in the cylinder and flowing lubricating oil, the clearance between the heat dissipation groove 3 and the periphery of the piston 8 is 0.03-7 mm, for example, the clearance is 3mm, the clearance is far larger than the clearance between the outer circle of the piston and the original inner peripheral cylindrical surface of the cylinder hole 1, so that the heat dissipation effect is greatly improved while the normal operation of the piston is ensured.
According to the cylinder seat, the guide wall 2 and the heat dissipation groove 3 are arranged on the original cylindrical cylinder hole 1, so that the gap and the heat dissipation area between the inner wall of the cylinder hole 1, namely the heat dissipation groove 3 and the outer circle of the piston 8, can be effectively increased, heat dissipation in the cylinder is facilitated, the flowing space and position of lubricating oil on the piston are more, the heat is easier to take away, the lubricating oil cannot be accumulated in the air dissipation groove on the outer circle of the piston in a large quantity, and the lubricating oil can be prevented from being brought into the compression space of the cylinder in the reciprocating process of the piston; because the heat dissipation is better, the lubricating oil flows more fully, can also avoid extravagant a large amount of compression work on the whole.
The guide wall 2 can maintain the reciprocating motion of the piston 8 while the heat dissipation groove 3 achieves a good heat dissipation effect, and has a good guiding effect, and although the guide wall 2 and the heat dissipation groove 3 are arranged on one side of the cylinder hole 1 close to the crankshaft mounting hole, the moving stroke of the piston 8 in the cylinder cannot be reduced, and on the contrary, under the same piston stroke, the cylinder has higher efficiency and smaller function loss.
The heat dissipation groove 3 can also reduce the weight of the cylinder block, so that the weight of the whole compressor is reduced, and the reduction of the weight is also beneficial to the control of power consumption. Meanwhile, the arrangement of the heat dissipation groove 3 enables the contact area of the piston 8 and the inner periphery of the cylinder hole 1 to be reduced when the piston passes through the section, the friction area of the piston is reduced, the power consumption is reduced, and the piston is beneficial to improving the beneficial work of the piston.
The cylinder seat can well reduce the whole temperature of the cylinder due to the good heat dissipation effect brought by the heat dissipation grooves 3, reduces the power consumption of the compressor, improves the efficiency and is also favorable for the refrigeration effect of the refrigeration compressor; the temperature of the exhaust gas of the cylinder at the exhaust end is also reduced, which is also beneficial for the exhaust.
Furthermore, the pair of guide walls 2 are symmetrically arranged on two sides of the inner periphery of one end, close to the crankshaft mounting hole, of the cylinder hole 1, the center lines of the pair of guide walls 2 are spaced by 180 degrees, and the plane where the center lines of the pair of guide walls 2 are located coincides with the central axis of the cylinder hole 1.
The pair of guide walls 2 which are symmetrically arranged can play a better guide role, and have balanced stress, and the stability can be ensured without influencing the reciprocating motion of the piston.
Further, the heat dissipation groove 3 is an arc-shaped groove, and an inclined opening 4 is formed in the outer side of one end, close to the crankshaft mounting hole, of the intersection of the heat dissipation groove 3 and the guide wall 2. The guide wall 2 is two walls that are small relative to the cylinder bore 1, that is, the area of the heat dissipation groove 3 is relatively large, which can increase the heat dissipation space.
The outer wall of the silencing cavity close to the cylinder hole 1 is also provided with a vertical groove 5, and the vertical groove 5 is communicated with the bevel opening 4, so that the arrangement is favorable for the heat in the radiating groove 3 to be radiated outwards and the gas to flow; the arrangement of the vertical groove 5 and the bevel opening 4 does not influence the normal operation of the piston, and the piston is convenient to assemble.
Further, if the axial length of the heat dissipation groove 3 is a, and the axial distance between the closed end surface of the piston 8 and the end surface of the cylinder hole 1 close to the crankshaft mounting hole is b when the piston 8 moves to the bottom dead center position, b-a is greater than or equal to 2 mm.
The arrangement can ensure that a small section of the end part of the piston 8 can not be separated from the whole cylindrical surface in the reciprocating motion process, the integrity and the sealing property of the compression part of the cylinder are ensured, and lubricating oil can not actively enter a compression space when the piston 8 moves.
Further, as shown in fig. 3 and 4, a small hole 11 is further formed in the piston 8, and when the piston 8 moves to the bottom dead center position, the small hole 11 is located at the position of the heat dissipation groove 3 and is communicated with the heat dissipation groove 3.
The arrangement of the small holes 11 is convenient for lubricating oil and gas in the piston 8 to flow outwards, and the heat dissipation of the small holes 11 is also realized while the peripheral lubrication of the piston 8 is ensured.
Further, assuming that a point c is a point where the heat dissipation groove 3, the guide wall 2 and the complete inner circumferential cylindrical surface of the cylinder bore 1 meet, a distance between a hole edge of the small hole 11 and the point c is 0 to 8mm, that is, the small hole 11 and the meeting point substantially coincide at an extreme position, and a space is usually left. The piston 8 can be ensured to radiate heat through the small hole 11 and perform the interactive flow of the lubricating oil in the process of reciprocating motion every time, the lubricating oil can not be kept in a high-temperature state for a long time, and the temperature of the lubricating oil is also reduced in the radiating process.
Furthermore, a yielding groove 6 is further arranged above the cylinder hole 1, and the heat dissipation groove 3 is also arranged on the inner periphery of the cylinder hole between the yielding groove 6 and the guide wall 2.
Further, as shown in fig. 6, a vertical through hole 7 is further formed in the heat dissipation groove 3 located in the lower half portion, and the through hole 7 and the abdicating groove 6 are correspondingly formed.
The through hole 7 is further arranged below the cylinder seat, so that heat dissipation can be accelerated through the through hole 7, and excessive lubricating oil is prevented from being accumulated in the cylinder. With the groove 6 of stepping down of top just in time correspond, play convection current and the radiating effect of clamp splice, when piston 8 moved here, the upper and lower part homoenergetic of piston 8 can communicate with exterior space, the radiating effect is very good.
The inner diameter of the through hole 7 is slightly larger than the axial length a of the heat dissipation groove 3, the circumference of the through hole is tangent to the step formed by the heat dissipation groove at the complete inner circle of the cylinder hole, and the area of a heat dissipation channel is increased under the condition that the strength and the stability of the cylinder seat are not damaged.
Further, as shown in fig. 3 to 5, a piston pin hole 9 perpendicular to the central axis is formed in the piston 8, and a piston pin 12 is disposed in the piston pin hole 9; when the piston 8 moves to the bottom dead center position, the piston pin 12 of the piston 8 is located above the through hole 7.
Further, the piston pin 12 is provided with a middle through hole 13 axially penetrating through the piston pin 12, the periphery of the piston 8 is further provided with a circumferentially surrounding air elimination groove 10, the air elimination groove 10 passes through the piston pin hole 9, and the outer diameter of the middle through hole 13 is smaller than the inner diameter of the through hole 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The cylinder block is provided with a cylinder hole and is characterized in that a plurality of guide walls are arranged on the inner periphery of one end, close to a crankshaft mounting hole, of the cylinder hole, radiating grooves are formed among the guide walls, the inner periphery of each guide wall is flush with the original inner periphery cylindrical surface of the cylinder hole, the guide walls are arranged along the length direction of the cylinder hole, a piston of the compressor reciprocates towards the cylinder hole along the guide walls, a gap between each radiating groove and the outer periphery of the piston ranges from 0.03mm to 7mm, and the radiating grooves are used for radiating heat in the cylinder and flowing lubricating oil.
2. The cylinder block for improving the performance of the compressor as claimed in claim 1, wherein a relief groove is further formed above the cylinder bore, and the heat dissipation groove is also formed on the inner circumference of the cylinder bore between the relief groove and the guide wall.
3. The cylinder block for improving the performance of the compressor as recited in claim 1, wherein said pair of guide walls are symmetrically disposed on both sides of an inner circumference of an end of said cylinder bore near said crankshaft mounting hole, a center line of said pair of guide walls is spaced 180 ° apart, and a plane of a center line of said pair of guide walls coincides with a central axis of said cylinder bore.
4. The cylinder block for improving the performance of the compressor as claimed in claim 1, wherein the heat dissipation groove is an arc-shaped groove, and an inclined opening is formed at the outer side of one end of the intersection of the heat dissipation groove and the guide wall, which is close to the crankshaft mounting hole.
5. The cylinder block for improving the performance of the compressor as claimed in claim 1, wherein the axial length of the heat dissipation groove is a, the axial distance between the closed end surface of the piston and the end surface of the cylinder bore close to the crankshaft mounting hole when the piston moves to the bottom dead center is b, and b-a is greater than or equal to 2 mm.
6. The cylinder block for improving the performance of the compressor as recited in claim 1, wherein said piston is further formed with an aperture, and when said piston moves to a bottom dead center, said aperture is located at and communicates with said heat sink.
7. The cylinder block for improving the performance of a compressor as claimed in claim 6, wherein, assuming that the intersection point of the heat dissipation groove, the guide wall and the complete inner peripheral cylindrical surface of the cylinder bore is a point c, the distance from the hole edge of the small hole to the point c is 0-8 mm.
8. The cylinder block for improving the performance of the compressor as recited in claim 1, wherein a vertical through hole is further formed in the heat dissipation groove of the lower half portion.
9. The cylinder block for improving performance of a compressor according to claim 8, wherein a wrist pin of the piston is located above the through hole when the piston travels to a bottom dead center position, and an outer diameter of the wrist pin is smaller than an inner diameter of the through hole.
10. The cylinder block for improving the performance of a compressor according to claim 1, characterized in that a piston pin of the piston is provided with a central through hole axially penetrating the piston pin, and the outer periphery of the piston is further provided with a circumferentially arranged gas elimination groove passing through a piston pin hole of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210385340.5A CN114909272A (en) | 2022-04-13 | 2022-04-13 | Cylinder block for improving performance of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210385340.5A CN114909272A (en) | 2022-04-13 | 2022-04-13 | Cylinder block for improving performance of compressor |
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|---|---|
| CN114909272A true CN114909272A (en) | 2022-08-16 |
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| CN202210385340.5A Pending CN114909272A (en) | 2022-04-13 | 2022-04-13 | Cylinder block for improving performance of compressor |
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| CN206338170U (en) * | 2016-12-30 | 2017-07-18 | 浙江麦迪制冷科技股份有限公司 | A kind of refrigeration compressor cylinder block |
| CN108533475A (en) * | 2018-05-04 | 2018-09-14 | 芜湖欧宝机电有限公司 | High-efficient compressor cylinder block and its manufacturing method |
| CN211202235U (en) * | 2019-12-02 | 2020-08-07 | 长虹华意压缩机股份有限公司 | Piston for refrigeration compressor |
| CN111664073A (en) * | 2020-06-15 | 2020-09-15 | 青岛万宝压缩机有限公司 | Cylinder cover assembly for refrigerator compressor and refrigerator compressor |
| CN112943581A (en) * | 2021-02-26 | 2021-06-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil circuit structure and compressor with same |
| CN214887589U (en) * | 2021-02-06 | 2021-11-26 | 浙江奥利达气动工具股份有限公司 | Air compressor box |
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2022
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| CN206338170U (en) * | 2016-12-30 | 2017-07-18 | 浙江麦迪制冷科技股份有限公司 | A kind of refrigeration compressor cylinder block |
| CN108533475A (en) * | 2018-05-04 | 2018-09-14 | 芜湖欧宝机电有限公司 | High-efficient compressor cylinder block and its manufacturing method |
| CN211202235U (en) * | 2019-12-02 | 2020-08-07 | 长虹华意压缩机股份有限公司 | Piston for refrigeration compressor |
| CN111664073A (en) * | 2020-06-15 | 2020-09-15 | 青岛万宝压缩机有限公司 | Cylinder cover assembly for refrigerator compressor and refrigerator compressor |
| CN214887589U (en) * | 2021-02-06 | 2021-11-26 | 浙江奥利达气动工具股份有限公司 | Air compressor box |
| CN112943581A (en) * | 2021-02-26 | 2021-06-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil circuit structure and compressor with same |
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