CN116557268A - Reciprocating compressor cylinder piston rod cooling seal guide assembly - Google Patents
Reciprocating compressor cylinder piston rod cooling seal guide assembly Download PDFInfo
- Publication number
- CN116557268A CN116557268A CN202310717551.9A CN202310717551A CN116557268A CN 116557268 A CN116557268 A CN 116557268A CN 202310717551 A CN202310717551 A CN 202310717551A CN 116557268 A CN116557268 A CN 116557268A
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- Prior art keywords
- cylinder
- piston rod
- groove
- oil
- bushing
- Prior art date
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- 238000001816 cooling Methods 0.000 title claims abstract description 62
- 239000003921 oil Substances 0.000 claims abstract description 98
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 210000004907 gland Anatomy 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 239000010687 lubricating oil Substances 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000005461 lubrication Methods 0.000 claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 238000007790 scraping Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 8
- 239000004519 grease Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 13
- 238000009434 installation Methods 0.000 description 8
- 238000004064 recycling Methods 0.000 description 7
- 239000010727 cylinder oil Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
- F04B39/0022—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 piston rods
-
- 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
- F04B39/04—Measures to avoid lubricant contaminating the pumped fluid
- F04B39/041—Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to the technical field of circulating liquid seal compressors, in particular to a cooling seal guide assembly for a cylinder piston rod of a reciprocating compressor. The device comprises a cylinder body, wherein cylinder glands and cylinder bases are arranged at two ends of the cylinder body, a piston and a piston rod are arranged in the cylinder body, a guide sleeve is arranged on the cylinder body, a bushing is arranged between the guide sleeve and the piston rod, and a lubrication cooling structure for lubricating the piston rod is arranged in the bushing; the cylinder gland is internally provided with a circulating liquid inlet and outlet collecting sealing structure, and the outside of the cylinder gland is provided with a lubricating oil backflow blocking structure. The circulating liquid attached to the piston rod can be stored and collected, the circulating liquid attached to the piston rod is prevented from leaking to the direction of the driving mechanism and the cylinder body of the cylinder, the oil retainer can prevent lubricating oil from creeping along the piston rod to pollute the circulating liquid in the cylinder gland and gas in the cylinder body of the cylinder, the lubricating oil in the driving mechanism can splash into a grease line, the bushing and the piston rod are lubricated and cooled, and smooth sliding of the piston rod is ensured.
Description
Technical field:
the invention relates to the technical field of circulating liquid seal compressors, in particular to a cooling seal guide assembly for a cylinder piston rod of a reciprocating compressor.
The background technology is as follows:
the circulating liquid seal compressor mainly drives a piston in a cylinder body of a cylinder to reciprocate through a driving mechanism to realize the pressurization of gas, the driving mechanism comprises a crankshaft connecting rod, hydraulic driving or motor driving and the like, and a compression medium contains various flammable and explosive dangerous gases and toxic gases. The patent application with the application number of 2023106365840, which is filed earlier by our company, discloses a circulating liquid seal compression cylinder and a driving assembly, wherein a driving mechanism drives a piston rod and the piston rod to drive the piston to reciprocate in a cylinder body of the cylinder, so that the aim of pressurizing gas is fulfilled. However, in specific use, there are also the following problems:
1. after the assembly of each component, the channel for the circulating liquid in the annular cooling groove to enter and exit needs to be designed in the cylinder gland, and other assembly components need to be reasonably designed, otherwise, the smooth entering and exiting of the circulating liquid is easily influenced;
2. in the reciprocating motion process of the piston rod in the cylinder gland, a part of circulating liquid is always attached to the piston rod, and if the part of circulating liquid cannot be collected timely, the part of circulating liquid is easy to leak to the direction of the driving mechanism, so that the lubricating oil in the driving mechanism is polluted; on the other hand, the compressed gas is easy to leak towards the direction of the cylinder body of the cylinder, so that the compressed gas in the cylinder body of the cylinder is polluted;
3. functional components in the driving mechanism need to be lubricated by lubricating oil, and the lubricating oil is easy to creep along a piston rod and leak towards the directions of the cylinder gland and the cylinder body, so that the circulating liquid in the cylinder gland and the gas in the cylinder body are polluted;
4. the existing guide sleeve is of an integral structure generally, the cylinder body is fixedly connected with the cylinder body of the air cylinder, and the center of the end face of the guide sleeve is provided with a bushing for guiding the piston rod;
5. in the reciprocating motion process of the piston rod, sliding friction can occur between the piston rod and the guide sleeve, a lubricating structure is not arranged between the piston rod and the guide sleeve at present, so that friction heat is easy to generate, the piston rod is easy to slide unsmooth for a long time, and even deformation and clamping occur in severe cases.
In view of the above, the above problems in the circulating liquid seal compressor have become a technical problem to be solved in the industry.
The invention comprises the following steps:
the invention provides a cooling sealing guide assembly for a cylinder piston rod of a reciprocating compressor, which solves the problems that circulating liquid attached to a piston rod in a cylinder gland cannot be collected in time and is easy to leak in the past, solves the problem that lubricating oil in a driving mechanism is easy to climb along the piston rod to pollute the circulating liquid in the cylinder gland and gas in a cylinder body of the cylinder, solves the problems that the mounting precision of an integral guide sleeve is poor, the coaxiality of a bushing and the piston rod is difficult to ensure and the form and position tolerance are difficult to ensure, and solves the problems that the lubricating effect between the piston rod and the guide sleeve is poor and the piston rod slides unsmoothly due to friction heat generation.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a reciprocating compressor cylinder piston rod cooling seal direction assembly, includes the cylinder body, cylinder body both ends are equipped with cylinder gland and cylinder base, are equipped with piston and piston rod in the cylinder body, and the piston rod activity wears the cylinder gland outside, install the uide bushing that is used for carrying out the direction to the piston rod on the cylinder body, be equipped with the barrel of installing on the cylinder body outside the uide bushing, clearance fit installs between uide bushing and the barrel, be equipped with the bush between uide bushing and the piston rod, the mounting groove is seted up to the uide bushing inner wall, and the bush is established in the mounting groove, and the terminal surface flange of bush passes through screw and uide bushing fixed connection, is equipped with the lubrication cooling structure that is used for carrying out lubricated to the piston rod in the bush; the cylinder gland is internally provided with a circulating liquid inlet and outlet collecting sealing structure, the circulating liquid is used for cooling, lubricating and sealing, and the outer side of the cylinder gland is provided with a lubricating oil backflow blocking structure.
The circulating liquid inlet and outlet collecting sealing structure comprises an annular cooling groove arranged on the side wall of an axle center hole of the cylinder gland, a sealing ring groove A, a sealing ring groove B and a sealing ring groove C are arranged on the side wall of the axle center hole of the cylinder gland at intervals, and sealing rings are respectively arranged in the sealing ring groove A, the sealing ring groove B and the sealing ring groove C; the annular cooling groove is arranged between the sealing ring groove A and the sealing ring groove B, and a cooling groove liquid inlet channel and a cooling groove liquid outlet channel which are communicated with the annular cooling groove are arranged in the cylinder gland, the guide sleeve and the cylinder body; the side wall of the axle center hole between the sealing ring groove B and the sealing ring groove C is provided with a circulating liquid collecting groove, and collecting groove liquid outlet channels communicated with the bottom of the circulating liquid collecting groove are arranged in the cylinder gland, the guide sleeve and the cylinder body.
The sealing ring groove B and the sealing ring groove C are used for preventing circulating liquid in the circulating liquid collecting groove from leaking to two sides from a gap between the cylinder gland and the piston rod, and the sealing ring groove A and the sealing ring groove B are used for preventing circulating liquid in the annular cooling groove from leaking to two sides from a gap between the cylinder gland and the piston rod.
The lubricating oil backflow blocking structure comprises an oil retainer arranged on a piston rod outside the cylinder body and close to the cylinder gland, and the oil retainer is used for preventing lubricating oil from creeping along the piston rod to pollute circulating liquid in the cylinder gland and gas in the cylinder body.
The bottom of the guide sleeve is provided with a guide sleeve oil return groove and an oil return hole, and the guide sleeve oil return groove is obliquely arranged downwards from the cylinder gland to the driving mechanism; the bottom of the cylinder body is provided with a cylinder body oil return groove which is arranged from the cylinder gland to the driving mechanism in a downward inclined mode.
And an oil baffle groove is arranged on the end face of the oil baffle ring facing one side of the driving mechanism.
Two detachable access boards are respectively arranged on the two opposite side walls of the cylinder body.
The lubrication cooling structure comprises a wick arranged on the inner wall of the bushing, lubrication and cooling are carried out between the bushing and the piston rod by storing lubricating oil in the wick, wick liquid inlet channels communicated with the top of the wick are arranged in the bushing and the guide sleeve, and wick liquid outlet channels communicated with the bottom of the wick are arranged in the bushing and the guide sleeve.
The oil inlet grooves are formed in the positions, corresponding to the oil line liquid inlet channels, of the guide sleeve, and the oil lines are arranged on the inner wall of the bushing in a crossed arc shape, a spiral shape or an annular shape.
A plurality of oil scraping rings are arranged between the inner end of the bushing and the bottom of the mounting groove, an oil scraping storage groove is formed in the position, close to the oil scraping rings, of the inner wall of the bushing, and an oil scraping liquid inlet groove which is used for communicating the oil scraping storage groove with the top of the oil line is formed in the top of the inner wall of the bushing along the axial direction.
The invention adopts the scheme and has the following advantages:
1. the circulating liquid inlet and outlet collecting and sealing structure has the advantages that the circulating liquid collecting groove is formed in the side wall of the axle center hole of the cylinder gland, circulating liquid attached to the piston rod can be stored and collected in time, the collected circulating liquid can be discharged outwards through the liquid outlet channel of the collecting groove for recycling, leakage of the circulating liquid attached to the piston rod to the direction of the driving mechanism and the direction of the cylinder body is effectively avoided, and the lubricating oil in the driving mechanism and the compressed gas in the cylinder body are protected.
2. The lubricating oil blocking backflow structure has the advantages that the oil retainer is arranged at the position, close to the cylinder gland, on the piston rod, and can block lubricating oil, so that the lubricating oil is prevented from creeping along the piston rod to pollute circulating liquid in the cylinder gland and gas in the cylinder body of the cylinder. The lubricating oil dropped from the oil retainer can flow into the cylinder oil return groove through the guide sleeve oil return groove and the oil return hole, and finally flows back into the driving mechanism for recycling.
3. Through installing the uide bushing on the cylinder body, the uide bushing outside is equipped with the barrel of installing on the cylinder body, clearance fit installs between uide bushing and the barrel, installs the bush again in the uide bushing, forms split type mounting structure, is convenient for locally adjust during the installation, and the installation accuracy is high, can guarantee axiality and the form and position tolerance of bush and piston rod, makes the piston rod slide smoothly, guarantees the running accuracy of piston rod.
4. The lubrication cooling structure is characterized in that the oil line is arranged on the inner wall of the bushing, the oil line liquid inlet channel communicated with the top of the oil line is arranged in the bushing and the guide sleeve, lubricating oil in the driving mechanism can splash into the oil line, lubrication and cooling are carried out between the bushing and the piston rod, smooth sliding of the piston rod is guaranteed, lubrication cooling effect is achieved, the oil line liquid outlet channel communicated with the bottom of the oil line is arranged in the bushing and the guide sleeve, and lubricating oil in the oil line can flow back to the driving mechanism from the oil line liquid outlet channel for recycling. In addition, the oil scraper ring can scrape the lubricating oil attached to the piston rod into the oil scraping storage tank, and then the lubricating oil enters the oil line through the oil scraping liquid inlet tank, so that the lubricating oil quantity in the oil line can be increased, and the lubricating and cooling effects are improved.
Description of the drawings:
fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic longitudinal sectional view of the present invention.
Fig. 3 is a schematic perspective view of a cylinder gland according to the present invention.
Fig. 4 is a schematic cross-sectional view of the cylinder gland of the present invention.
Fig. 5 is a schematic longitudinal sectional view of the cylinder gland of the present invention.
Fig. 6 is a schematic perspective view of the oil deflector ring part of the present invention.
Fig. 7 is an enlarged schematic view of the portion a of the present invention.
Fig. 8 is a schematic perspective view of a bushing according to the present invention.
FIG. 9 is a schematic cross-sectional view of a bushing of the present invention.
Fig. 10 is a schematic perspective view of a guide sleeve according to the present invention.
In the figure, 1, a cylinder body, 2, a cylinder gland, 3, a cylinder base, 4, a piston, 5, a piston rod, 6, a guide sleeve, 7, a cylinder body, 8, an annular cooling groove, 9, a sealing ring groove A,10, a sealing ring groove B,11, a sealing ring groove C,12, a cooling groove liquid inlet channel, 13, a cooling groove liquid outlet channel, 14, a circulating liquid collecting groove, 15, a collecting groove liquid outlet channel, 16, an oil retainer, 17, a guide sleeve oil return groove, 18, an oil return hole, 19, a cylinder body oil return groove, 20, an overhaul plate, 21, a bushing, 22, an oil line, 23, an oil line liquid inlet channel, 24, an oil line liquid outlet channel, 25, an oil inlet groove, 26, an oil scraper ring, 27, an oil scraper storage groove, 28 and an oil scraper liquid inlet groove.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1-10, a cooling sealing guide assembly for a cylinder piston rod of a reciprocating compressor comprises a cylinder body 1, a cylinder gland 2 and a cylinder base 3 are arranged at two ends of the cylinder body 1, a piston 4 and a piston rod 5 are arranged in the cylinder body 1, the piston rod 5 movably penetrates through the outer side of the cylinder gland 2, a guide sleeve 6 used for guiding the piston rod 5 is arranged on the cylinder body 1, a cylinder body 7 arranged on the cylinder body 1 is arranged on the outer side of the guide sleeve 6, the guide sleeve 6 and the cylinder body 7 are arranged in a clearance fit manner, a bushing 21 is arranged between the guide sleeve 6 and the piston rod 5, an installation groove is formed in the inner wall of the guide sleeve 6, the bushing 21 is arranged in the installation groove, an end face flange of the bushing 21 is fixedly connected with the guide sleeve 6 through a screw, during installation, the cylinder body 7 is independently installed with the cylinder body 1 through the screw, the guide sleeve 6 is also independently installed through the screw, the barrel 7, the guide sleeve 6 and the bushing 21 are formed into a split type installation structure, during installation, the installation precision is high, the coaxiality of the bushing 21 and the sliding precision of the piston rod 5 can be ensured, and the sliding precision of the piston rod 5 can be ensured.
The two opposite side walls of the cylinder 7 are respectively provided with a detachable access board 20, and the detachable access boards are convenient to install and overhaul.
The cylinder gland 2 is internally provided with a circulating liquid inlet and outlet collecting sealing structure which is used for cooling, lubricating and sealing, the circulating liquid inlet and outlet collecting sealing structure comprises an annular cooling groove 8 arranged on the side wall of an axle center hole of the cylinder gland 2, a sealing ring groove A9, a sealing ring groove B10 and a sealing ring groove C11 are arranged on the side wall of the axle center hole of the cylinder gland 2 at intervals, and sealing rings are respectively arranged in the sealing ring groove A9, the sealing ring groove B10 and the sealing ring groove C11; the annular cooling groove 8 is arranged between the sealing ring groove A9 and the sealing ring groove B10, and circulating liquid in the annular cooling groove 8 has the functions of cooling, lubricating and sealing; a cooling tank liquid inlet channel 12 and a cooling tank liquid outlet channel 13 which are communicated with the annular cooling tank 8 are arranged in the cylinder gland 2, the guide sleeve 6 and the cylinder body 7, so that the inlet and outlet circulation of circulating liquid is realized; the side wall of the axle center hole between the sealing ring groove B10 and the sealing ring groove C11 is provided with a circulating liquid collecting groove 14, a collecting groove liquid outlet channel 15 communicated with the bottom of the circulating liquid collecting groove 14 is arranged in the cylinder gland 2, the guide sleeve 6 and the cylinder body 7, and the collected circulating liquid can be discharged outwards through the collecting groove liquid outlet channel 15 for recycling.
The seal ring groove B10 and the seal ring groove C11 are used for preventing the circulating fluid in the circulating fluid collecting groove 14 from leaking to two sides from the gap between the cylinder gland 2 and the piston rod 5, and the seal ring groove A9 and the seal ring groove B10 are used for preventing the circulating fluid in the annular cooling groove 8 from leaking to two sides from the gap between the cylinder gland 2 and the piston rod 5.
The circulating liquid can be various liquids such as water, ionic liquid, oil and the like.
Circulating liquid in-out collecting and sealing structure working principle:
in the process that the driving mechanism drives the piston rod 5 to reciprocate in the cylinder gland 2, circulating liquid attached to the piston rod 5 can be stored and collected in the circulating liquid collecting tank 14 and can be discharged outwards through the collecting tank liquid outlet channel 15 for recycling, so that the circulating liquid attached to the piston rod 5 is effectively prevented from leaking towards the driving mechanism and the cylinder body 1, and the lubricating oil in the driving mechanism and the compressed gas in the cylinder body 1 are protected.
The outside of cylinder gland 2 is equipped with lubricating oil and blocks the backward flow structure, lubricating oil blocks backward flow structure and includes the oil retainer 16 of establishing the position that is close to cylinder gland 2 on piston rod 5 in the cylinder block 1 outside, oil retainer 16 is used for the oil retainer to can block lubricating oil, avoids lubricating oil to climb along the piston rod and causes the pollution to the circulating fluid in the cylinder gland and the gas in the cylinder block.
The bottom of the guide sleeve 6 is provided with a guide sleeve oil return groove 17 and an oil return hole 18, and the guide sleeve oil return groove 17 is arranged obliquely downwards from the cylinder gland to the driving mechanism, so that lubricating oil can flow back to the direction of the driving mechanism conveniently; the bottom of the cylinder 7 is provided with a cylinder oil return groove 19, and the cylinder oil return groove 19 is arranged from the cylinder gland to the driving mechanism in a downward inclined way, so that lubricating oil can flow back to the direction of the driving mechanism conveniently.
The oil baffle ring 16 is provided with an oil baffle groove on the end face facing the side of the driving mechanism, so that the oil baffle effect can be enhanced.
Lubricating oil blocks backward flow structure theory of operation:
in the process that the driving mechanism drives the piston rod 5 to reciprocate, functional components in the driving mechanism need to be lubricated through lubricating oil, and the oil retainer 16 arranged on the piston rod 5 at the front side of the cylinder gland 2 can play a role in blocking the lubricating oil, so that the lubricating oil is prevented from creeping along the piston rod to pollute circulating liquid in the cylinder gland and gas in the cylinder body of the cylinder. The lubricating oil dropped from the oil retainer 16 can flow into the cylinder oil return groove 19 through the guide sleeve oil return groove 17 and the oil return hole 18, and finally flows back into the driving mechanism for recycling.
The inside of the bushing 21 is provided with a lubrication cooling structure for lubricating the piston rod 5, the lubrication cooling structure comprises a wick 22 arranged on the inner wall of the bushing 21, the wick 22 is used for storing lubricating oil to lubricate and cool between the bushing 21 and the piston rod 5, the bushing 21 and the guide sleeve 6 are internally provided with a wick liquid inlet channel 23 communicated with the top of the wick 22, and the bushing 21 and the guide sleeve 6 are internally provided with a wick liquid outlet channel 24 communicated with the bottom of the wick 22.
An oil inlet groove 25 is arranged on the guide sleeve 6 at a position corresponding to the oil line liquid inlet channel 23, so that splashed lubricating oil can be collected, and the amount of lubricating oil entering the oil line liquid inlet channel 23 can be increased; the oil line 22 is in a cross arc shape, spiral shape or ring shape and is arranged on the inner wall of the bushing 21 so as to increase the lubrication area and promote the lubrication and cooling effects; a plurality of oil scraping rings 26 are arranged between the inner end of the bushing 21 and the bottom of the mounting groove, an oil scraping storage groove 27 is arranged on the inner wall of the bushing 21 close to the oil scraping rings 26, and an oil scraping liquid inlet groove 28 which is used for communicating the oil scraping storage groove 27 with the top of the oil line 22 is axially arranged on the top of the inner wall of the bushing 21.
Working principle of the lubrication and cooling structure:
in the process that the driving mechanism drives the piston rod 5 to reciprocate, on one hand, lubricating oil in the driving mechanism can splash into the oil inlet groove 25, so that the lubricating oil enters the oil line 22 through the oil line liquid inlet channel 23, lubrication and cooling are carried out between the bushing 21 and the piston rod 5, smooth sliding of the piston rod 5 is ensured, a lubrication and cooling effect is realized, and the lubricating oil in the oil line 22 can flow back into the driving mechanism from the oil line liquid outlet channel 24 through the cylinder oil return groove 19 for recycling; on the other hand, the oil scraper ring 26 can scrape the lubricating oil attached to the piston rod 5 into the oil scraper storage groove 27, and then enters the top of the oil line 22 through the oil scraper inlet groove 28, so that the lubricating oil amount in the oil line 22 can be increased, and the lubricating and cooling effects can be improved.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (10)
1. The utility model provides a reciprocating compressor cylinder piston rod cooling seal direction assembly, includes the cylinder body, and cylinder body both ends are equipped with cylinder gland and cylinder base, are equipped with piston and piston rod in the cylinder body, and the piston rod activity wears the cylinder gland outside, its characterized in that: the cylinder body of the air cylinder is provided with a guide sleeve used for guiding the piston rod, the outer side of the guide sleeve is provided with a cylinder body arranged on the cylinder body of the air cylinder, the guide sleeve and the cylinder body are in clearance fit, a bushing is arranged between the guide sleeve and the piston rod, the inner wall of the guide sleeve is provided with a mounting groove, the bushing is arranged in the mounting groove, an end face flange of the bushing is fixedly connected with the guide sleeve through a screw, and a lubrication cooling structure used for lubricating the piston rod is arranged in the bushing; the cylinder gland is internally provided with a circulating liquid inlet and outlet collecting sealing structure, the circulating liquid is used for cooling, lubricating and sealing, and the outer side of the cylinder gland is provided with a lubricating oil backflow blocking structure.
2. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 1 wherein: the circulating liquid inlet and outlet collecting sealing structure comprises an annular cooling groove arranged on the side wall of an axle center hole of the cylinder gland, a sealing ring groove A, a sealing ring groove B and a sealing ring groove C are arranged on the side wall of the axle center hole of the cylinder gland at intervals, and sealing rings are respectively arranged in the sealing ring groove A, the sealing ring groove B and the sealing ring groove C; the annular cooling groove is arranged between the sealing ring groove A and the sealing ring groove B, and a cooling groove liquid inlet channel and a cooling groove liquid outlet channel which are communicated with the annular cooling groove are arranged in the cylinder gland, the guide sleeve and the cylinder body; the side wall of the axle center hole between the sealing ring groove B and the sealing ring groove C is provided with a circulating liquid collecting groove, and collecting groove liquid outlet channels communicated with the bottom of the circulating liquid collecting groove are arranged in the cylinder gland, the guide sleeve and the cylinder body.
3. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 2 wherein: the sealing ring groove B and the sealing ring groove C are used for preventing circulating liquid in the circulating liquid collecting groove from leaking to two sides from a gap between the cylinder gland and the piston rod, and the sealing ring groove A and the sealing ring groove B are used for preventing circulating liquid in the annular cooling groove from leaking to two sides from a gap between the cylinder gland and the piston rod.
4. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 1 wherein: the lubricating oil backflow blocking structure comprises an oil retainer arranged on a piston rod outside the cylinder body and close to the cylinder gland, and the oil retainer is used for preventing lubricating oil from creeping along the piston rod to pollute circulating liquid in the cylinder gland and gas in the cylinder body.
5. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 4 wherein: the bottom of the guide sleeve is provided with a guide sleeve oil return groove and an oil return hole, and the guide sleeve oil return groove is obliquely arranged downwards from the cylinder gland to the driving mechanism; the bottom of the cylinder body is provided with a cylinder body oil return groove which is arranged from the cylinder gland to the driving mechanism in a downward inclined mode.
6. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 4 wherein: and an oil baffle groove is arranged on the end face of the oil baffle ring facing one side of the driving mechanism.
7. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 1 wherein: two detachable access boards are respectively arranged on the two opposite side walls of the cylinder body.
8. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 1 wherein: the lubrication cooling structure comprises a wick arranged on the inner wall of the bushing, lubrication and cooling are carried out between the bushing and the piston rod by storing lubricating oil in the wick, wick liquid inlet channels communicated with the top of the wick are arranged in the bushing and the guide sleeve, and wick liquid outlet channels communicated with the bottom of the wick are arranged in the bushing and the guide sleeve.
9. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 8 wherein: the oil inlet grooves are formed in the positions, corresponding to the oil line liquid inlet channels, of the guide sleeve, and the oil lines are arranged on the inner wall of the bushing in a crossed arc shape, a spiral shape or an annular shape.
10. The reciprocating compressor cylinder piston rod cooling seal guide assembly of claim 8 wherein: a plurality of oil scraping rings are arranged between the inner end of the bushing and the bottom of the mounting groove, an oil scraping storage groove is formed in the position, close to the oil scraping rings, of the inner wall of the bushing, and an oil scraping liquid inlet groove which is used for communicating the oil scraping storage groove with the top of the oil line is formed in the top of the inner wall of the bushing along the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310717551.9A CN116557268A (en) | 2023-06-16 | 2023-06-16 | Reciprocating compressor cylinder piston rod cooling seal guide assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310717551.9A CN116557268A (en) | 2023-06-16 | 2023-06-16 | Reciprocating compressor cylinder piston rod cooling seal guide assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
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| CN202310717551.9A Pending CN116557268A (en) | 2023-06-16 | 2023-06-16 | Reciprocating compressor cylinder piston rod cooling seal guide assembly |
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Citations (10)
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|---|---|---|---|---|
| US3491654A (en) * | 1967-07-07 | 1970-01-27 | Sulzer Ag | Piston and cylinder arrangement for a reciprocating machine |
| CN1417470A (en) * | 2001-08-09 | 2003-05-14 | 诺沃皮尼奥内控股有限公司 | Scraper for piston rod of reciprocating compressor |
| CN201507425U (en) * | 2009-10-16 | 2010-06-16 | 南京压缩机股份有限公司 | Novel compressor oil-scraping structure |
| CN202914276U (en) * | 2012-11-16 | 2013-05-01 | 沈阳远大压缩机股份有限公司 | Oil wiper with sealing ring |
| CN103603787A (en) * | 2013-11-28 | 2014-02-26 | 四川大川压缩机有限责任公司 | Oil scraper for compressor |
| CN104389761A (en) * | 2014-11-11 | 2015-03-04 | 固耐重工（苏州）有限公司 | Labyrinth compressor piston rod guiding device |
| CN111350715A (en) * | 2020-04-09 | 2020-06-30 | 高宇 | Middle cylinder guide structure of hydraulic breaking hammer |
| CN216642439U (en) * | 2022-01-06 | 2022-05-31 | 科捷特泵***(天津)有限公司 | High-pressure reciprocating pump with multi-cylinder structure |
| CN218093400U (en) * | 2022-09-07 | 2022-12-20 | 科捷特泵***(天津)有限公司 | Liquid cooling sealing mechanism for reciprocating pump high-pressure cylinder |
| CN116221070A (en) * | 2021-12-03 | 2023-06-06 | 浙江凯途科技有限公司 | Labyrinth type adjustable guiding device |
-
2023
- 2023-06-16 CN CN202310717551.9A patent/CN116557268A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491654A (en) * | 1967-07-07 | 1970-01-27 | Sulzer Ag | Piston and cylinder arrangement for a reciprocating machine |
| CN1417470A (en) * | 2001-08-09 | 2003-05-14 | 诺沃皮尼奥内控股有限公司 | Scraper for piston rod of reciprocating compressor |
| CN201507425U (en) * | 2009-10-16 | 2010-06-16 | 南京压缩机股份有限公司 | Novel compressor oil-scraping structure |
| CN202914276U (en) * | 2012-11-16 | 2013-05-01 | 沈阳远大压缩机股份有限公司 | Oil wiper with sealing ring |
| CN103603787A (en) * | 2013-11-28 | 2014-02-26 | 四川大川压缩机有限责任公司 | Oil scraper for compressor |
| CN104389761A (en) * | 2014-11-11 | 2015-03-04 | 固耐重工（苏州）有限公司 | Labyrinth compressor piston rod guiding device |
| CN111350715A (en) * | 2020-04-09 | 2020-06-30 | 高宇 | Middle cylinder guide structure of hydraulic breaking hammer |
| CN116221070A (en) * | 2021-12-03 | 2023-06-06 | 浙江凯途科技有限公司 | Labyrinth type adjustable guiding device |
| CN216642439U (en) * | 2022-01-06 | 2022-05-31 | 科捷特泵***(天津)有限公司 | High-pressure reciprocating pump with multi-cylinder structure |
| CN218093400U (en) * | 2022-09-07 | 2022-12-20 | 科捷特泵***(天津)有限公司 | Liquid cooling sealing mechanism for reciprocating pump high-pressure cylinder |
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