CN103603787A - Oil scraper for compressor - Google Patents
Oil scraper for compressor Download PDFInfo
- Publication number
- CN103603787A CN103603787A CN201310614647.9A CN201310614647A CN103603787A CN 103603787 A CN103603787 A CN 103603787A CN 201310614647 A CN201310614647 A CN 201310614647A CN 103603787 A CN103603787 A CN 103603787A
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- Prior art keywords
- oil
- ring
- compressor
- housing
- scraper
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- Compressor (AREA)
Abstract
The invention discloses an oil scraper for a compressor, and belongs to the technical field of compressors. The oil scraper for the compressor comprises a shell. A shaft hole is formed in the middle of the shell, a piston rod can penetrate the shaft hole, an oil blocking ring which is sleeved on the piston rod is arranged on the inner wall of the shaft hole, sealing rings which are sleeved on the piston ring are arranged on the outermost side of the shell, and two oil scraping rings which are sleeved on the piston rod are arranged in the shell and are positioned between the oil blocking ring and the sealing rings. The oil scraper for the compressor has the advantages that oil on the piston ring can be effectively scraped and can be prevented from flowing into packing and a cylinder, and the oil scraper is excellent in oil scraping effect; the scraped lubricating oil can automatically flow back into a crankcase, and accordingly loss of the lubricating oil can be prevented; internal parts of the oil scraper can be conveniently and quickly replaced during maintenance as needed.
Description
Technical field
The present invention relates to Compressor Technology field, the oil wiper using on especially a kind of piston rod of compressor.
background technique
Oil wiper is one of kernel component of Reciprocting piston compressor, and it is to stop crosshead side lubricant oil along piston rod, to enter the significant components of filler and cylinder.To its basic demand, be to allow piston rod not be with oil and can guarantee for a long time its frizing effect.
In practice, scraper ring group number is the impossible too much increase of restriction of machine physical dimension by compression, and the restriction of machine physical dimension equally by compression of the size of spill port, also impossible unlimited increasing, in long-term use, cause the lubricant oil that oil wiper scrapes not to be back to timely in crankcase, make oil wiper frizing effect undesirable.
Summary of the invention
Goal of the invention of the present invention is: for the problem of above-mentioned existence, provide a kind of simple in structure, easy and simple to handle, for the oil wiper of compressor, can effectively the oil on piston rod be scraped easily, avoid it to enter into compressor packing and cylinder, there is preferably frizing effect; And the lubricant oil being scraped can be back in crankcase swimmingly, avoids the waste of lubricant oil simultaneously; When oil wiper inner body need to be changed, during maintenance, can very conveniently change.
The technical solution used in the present invention is as follows:
Oil wiper for compressor of the present invention, comprise housing, the middle part of described housing is provided with the axis hole passing for piston rod, in described axis hole, near crosshead side, be provided with the one group of oil blocking ring being placed on piston rod, the close cylinder side of described housing is furnished with and is placed on piston rod upper sealing ring, in described housing, be furnished with two groups of scraper rings that are placed on piston rod, described scraper ring is between oil blocking ring and seal ring.
Owing to having adopted said structure, oil blocking ring can play the oil resistance measure of first layer on the madial wall (also near crosshead side) of housing, and it can isolate from most lubricant oil in crankcase cylinders, has reduced the load of scraper ring; By two groups of scraper rings, can scrape depending on lubricant oil on piston rod again, play the frizing measure of the second layer; Outermost (also near cylinder side) at housing is furnished with one group of seal ring; sealing ring plays the mist of oil with pressure stoping in crankcase and enters in the extend neck of cylinder side; also avoided shielding gas or the air in extend neck to enter in crankcase simultaneously; played the 3rd pipe protection measure; oil wiper for compressor of the present invention; can effectively the oil on piston rod be scraped, avoid its filler that enters into cylinder side and cylinder, there is preferably frizing effect.
Oil wiper for compressor of the present invention, the close cylinder side of described housing is connected with gland, is provided with one group of scraper ring between described gland and housing; The close cylinder side of described gland is connected with closed chamber, is provided with another group scraper ring between described closed chamber and gland; The close cylinder side of described closed chamber is connected with pressing plate, is provided with one group of seal ring between described closed chamber and pressing plate.
Owing to having adopted said structure, first group of scraper ring is glanded and is pressed on hull outside wall, limits this scraper ring and moves with the movement of piston rod simultaneously; And the sealed constant pressure of the second scraper ring is on gland, can limit equally this scraper ring to move with the movement of piston rod simultaneously; Seal ring is pressed on closed chamber by pressing plate, can limit seal ring and move with the movement of piston rod simultaneously; Therefore the lubricant oil on piston rod can pass through oil blocking ring, two-stage scraper ring and seal ring and scrapes; make to have reached effectively isolated between crankcase and cylinder; avoid shielding gas or the air in extend neck to enter in crankcase, there is preferably frizing effect, guaranteed the effect of oil wiper.
Oil wiper for compressor of the present invention, described scraper ring is connected as one and has been formed two-way scraping edge by the frizing ring body of two laminatings, wherein the faying surface of two frizing ring bodies is provided with locating stud the two is connected and fixed by it, rely on the spring on scraper ring outer wall that its cutting edge is close on piston rod, when piston rod to-and-fro motion, scraper ring can be wiped the oil on it off, guarantees frizing effect; The inwall of described scraper ring is provided with long-pending oil groove, described long-pending oil groove is positioned at the subsides commissure of two frizing ring bodies, because compressor lubrication oil viscosity is larger, cause the lubricant oil that adheres on piston rod more, long-pending oil groove can play buffer function to the lubricant oil of wiping off, while avoiding lubricant oil more, oil pressure improves, and too much lubricant oil enters next group scraper ring, and affects frizing effect.
Oil wiper for compressor of the present invention, described seal ring is connected as one and is formed by the seal ring body of two laminatings, and wherein the faying surface of two seal ring bodies is provided with locating stud the two is connected and fixed by it, and on the outer wall of each seal ring body, cover has spring.
Owing to having adopted said structure, seal ring is as last one frizing measure of oil wiper, sealing ring plays the critical component of isolated crankcase and cylinder, the spring that on seal ring outer wall there is cover, can increase a fastening force for seal ring, make the inner ring of seal ring can be close on piston rod, simultaneously because the spring in seal ring outside is close on piston rod, make to have formed between seal ring and gland a lateral seal, the mist of oil with pressure that prevents crosshead side enters cylinder side, has guaranteed its sealing effect; Simultaneously seal ring fits in one by two seal ring bodies, and on its faying surface, is inlaid with locating stud and connects, and two connections between seal ring body are more surely leaned on, and two seal ring bodies make sealing effect better.
Oil wiper for compressor of the present invention, the crosshead side of described housing is provided with spring sheet and oil blocking ring, and described spring sheet is bolted in housing and is pressed on oil blocking ring.
Owing to having adopted said structure, spring sheet is used for compressing oil blocking ring, avoids it from the axis hole of housing, to depart from, and has stoped most lubricant oil to enter oil blocking ring simultaneously, makes oil blocking ring can stop most lubricant oil, plays first frizing means; Wherein spring sheet is bolted on housing, and when oil blocking ring need to be changed, the bolt of can dismantling, makes dismounting and replacing very convenient.
Oil wiper for compressor of the present invention, the both sides of described gland are equipped with for laying the receiving cavity of scraper ring, the size of described receiving cavity is much larger than the size of scraper ring, make the space between the outer wall of described scraper ring and the inwall of this receiving cavity form enough large buffer space (being also dashpot), in described housing, be provided with the oil-return groove being communicated with receiving cavity, described oil-return groove is provided with the crosshead side that spill port is communicated to housing.
Owing to having adopted said structure, in piston rod to-and-fro motion process, two groups of scraper rings are by after depending on oil on piston rod and hanging, for fear of the oil of wiping off, being piled up in scraper ring around impacts its frizing effect, the size of the receiving cavity of scraper ring is done greatly, approximately be greater than the size of scraper ring, make the certain space that has between the outer wall of scraper ring and the inwall of this reservoir body, this space is mainly used in cushioning the oil that scraper ring is wiped off, then make the oil storing in two receiving cavities converge in the oil-return groove in housing, spill port from housing is back in crankcase smoothly again, more can avoid lubricant oil to be piled up in scraper ring around, its frizing effect is impacted.
Oil wiper for compressor of the present invention, described gland, closed chamber and pressing plate are connected on the outboard end of housing by bolt.
Owing to having adopted said structure, make whole oil wiper be convenient to assembly and disassembly, when needs are changed inner scraper ring or seal ring, can directly bolt be come loose and can be changed, make maintenance and change very convenient and swift.
In sum, owing to having adopted technique scheme, the invention has the beneficial effects as follows:
1, the oil wiper for compressor of the present invention, simple in structure, easy and simple to handle, easy to use, applied widely, is applicable to applying;
2, the oil wiper for compressor of the present invention, can scrape the lubricant oil on piston rod effectively, avoids it to enter into cylinder, has preferably long-term frizing effect, guarantees the effect of gas compressor;
3, the oil wiper for compressor of the present invention, the lubricant oil being scraped can automatically be back in crankcase, avoids the waste of lubricant oil; When oil wiper inner body need to be changed, its maintenance is replaceable all very convenient and swift.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark in figure: 1-housing, 2-pad, 3-gland, 4,14-bolt, 5-closed chamber, 6-spring, 7,16-pin, 8,9-seal ring, 10-pressing plate, 11,15-scraper ring, 12-spring sheet, 13-oil blocking ring, 17-double-screw bolt, 18-nut.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, oil wiper for compressor of the present invention, comprise housing 1, the middle part of described housing 1 is provided with the axis hole passing for piston rod, the inwall of described axis hole (the also sidewall of close crosshead side) is provided with the oil blocking ring 13 being placed on piston rod, the inner side of described housing 1 is provided with spring sheet 12, and described spring sheet 12 is bolted in housing 1 and is pressed on oil blocking ring 13; On the outside of described housing 1 (also near cylinder side), be connected with gland 3, between described gland 3 and housing 1, be provided with a scraper ring; In the close cylinder side of described gland 3, be connected with closed chamber 5, between described closed chamber 5 and gland 3, be provided with another scraper ring, make two oil rings between oil blocking ring 13 and seal ring, described scraper ring is connected as one and is formed two-way scraping edge structure by the frizing ring body of two laminatings, wherein the faying surface of two frizing ring bodies is provided with pin the two is fixedly connected with by it, the inwall of described scraper ring is provided with long-pending oil groove, described long-pending oil groove is positioned at the subsides commissure of two frizing ring bodies, is that cover has spring on the outer wall of each frizing ring body; The close cylinder side of described closed chamber 5 is connected with pressing plate 10, between described closed chamber 5 and pressing plate 10, be provided with seal ring, described seal ring is connected as one and is formed by the seal ring body of two laminatings, wherein the faying surface of two seal ring bodies is provided with pin by its two connection, on the outer wall of each seal ring body, cover has spring, wherein said gland 3, closed chamber 5 and pressing plate 10 are connected in the close cylinder side of housing 1 by bolt, and seal ring is arranged on the piston rod of close cylinder side of housing 1.Wherein in the both sides of described gland 3, be equipped with for laying the receiving cavity of scraper ring, the size of described receiving cavity is much larger than the size of scraper ring, make the space between the outer wall of described scraper ring and the inwall of this reservoir body form dashpot, in described housing 1, be provided with the oil-return groove being communicated with dashpot, described oil-return groove is provided with the crosshead side that return port is communicated to housing 1.The some attachment holes of uniform use in the portion of the limit of described housing 1, can connect by the nut 18 that cover has on double-screw bolt 17 in this attachment hole, are provided with pad 2 above this attachment hole.
Oil wiper for compressor of the present invention, wherein oil blocking ring can play the oil resistance measure of first layer on the madial wall (also near crosshead side) of housing, and it can isolate from most lubricant oil in crankcase cylinders, has reduced the load of scraper ring; By two groups of scraper rings, can scrape depending on lubricant oil on piston rod again, play the frizing measure of the second layer; Outermost (also near cylinder side) at housing is furnished with one group of seal ring, sealing ring plays the mist of oil with pressure stoping in crankcase and enters in the extend neck of cylinder side, also avoided shielding gas or the air in extend neck to enter in crankcase simultaneously, played the 3rd pipe protection measure, oil wiper for compressor of the present invention, can scrape the oil on piston rod effectively, avoids it to enter into cylinder, there is preferably frizing effect, guarantee the effect of gas compressor; The lubricant oil being scraped can automatically be back in oil storage cylinder, avoids the loss of lubricant oil; When oil wiper inner body need to be changed, its maintenance is replaceable all very convenient and swift.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the oil wiper for compressor, it is characterized in that: it comprises housing (1), the middle part of described housing (1) is provided with the axis hole passing for piston rod, in described axis hole, near crosshead side, be provided with the one group of oil blocking ring (13) being placed on piston rod, the close cylinder side of described housing (1) is furnished with and is placed on piston rod upper sealing ring, in described housing (1), be furnished with two groups of scraper rings that are placed on piston rod, described scraper ring is positioned between oil blocking ring (13) and seal ring.
2. the oil wiper for compressor as claimed in claim 1, is characterized in that: the close cylinder side of described housing (1) is connected with gland (3), between described gland (3) and housing (1), is provided with one group of scraper ring; The close cylinder side of described gland (3) is connected with closed chamber (5), is provided with another group scraper ring between described closed chamber (5) and gland (3); The close cylinder side of described closed chamber (5) is connected with pressing plate (10), between described closed chamber (5) and pressing plate (10), is provided with one group of seal ring.
3. the oil wiper for compressor as claimed in claim 2, it is characterized in that: described scraper ring is the two-way scraping edge structure that the frizing ring body of two laminatings connects as one formation, wherein the faying surface of two frizing ring bodies is provided with pin the two is fixedly connected with by it, the inwall of described scraper ring is provided with long-pending oil groove, described long-pending oil groove is positioned at the subsides commissure of two frizing ring bodies, and on the outer wall of each frizing ring body, all cover has spring.
4. the oil wiper for compressor as claimed in claim 2, it is characterized in that: described seal ring is connected as one and formed by the seal ring body of two laminatings, wherein the faying surface of two seal ring bodies is provided with pin the two connection by it, and on the outer wall of each seal ring body, all cover has spring.
5. the oil wiper for compressor as described in one of claim 1 to 4, it is characterized in that: the close crosshead side of described housing (1) is provided with spring sheet (12), described spring sheet (12) is bolted in housing (1) and is pressed on oil blocking ring (13).
6. as claimed in claim 2 or claim 3 for the oil wiper of compressor, it is characterized in that: on the bi-side of described gland (3), be equipped with for laying the receiving cavity of scraper ring, the size of described receiving cavity is greater than the size of scraper ring, make the space between the outer wall of described scraper ring and the inwall of this reservoir body form dashpot, described housing is provided with the oil-return groove being communicated with dashpot in (1), and described oil-return groove is provided with the crosshead side that return port is communicated to housing (1).
7. the oil wiper for compressor as described in claim 2 or 3 or 4, is characterized in that: described gland (3), closed chamber (5) and pressing plate (10) are connected in the close cylinder side of housing (1) by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614647.9A CN103603787A (en) | 2013-11-28 | 2013-11-28 | Oil scraper for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614647.9A CN103603787A (en) | 2013-11-28 | 2013-11-28 | Oil scraper for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103603787A true CN103603787A (en) | 2014-02-26 |
Family
ID=50122035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310614647.9A Pending CN103603787A (en) | 2013-11-28 | 2013-11-28 | Oil scraper for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103603787A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909496A (en) * | 2016-05-13 | 2016-08-31 | 蚌埠市金鹏燃气设备制造有限公司 | Oil scraping device for compressor |
| CN106438289A (en) * | 2016-08-23 | 2017-02-22 | 柳州市国正机电物资有限责任公司 | Compressor oil scraper ring component |
| CN109642563A (en) * | 2016-08-26 | 2019-04-16 | 伯克哈特压缩机股份公司 | Oil-scraping ring assembly |
| CN113914808A (en) * | 2020-07-07 | 2022-01-11 | 中国石油天然气股份有限公司 | Oil extraction device |
| CN116557268A (en) * | 2023-06-16 | 2023-08-08 | 烟台东德氢能技术有限公司 | Reciprocating compressor cylinder piston rod cooling seal guide assembly |
| CN117889063A (en) * | 2024-03-14 | 2024-04-16 | 东贝机电（江苏）有限公司 | Refrigerating compressor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706971A (en) * | 1983-08-25 | 1987-11-17 | Schirmer Alfred F | Seal ring for piston rods with partings |
| EP0424310B1 (en) * | 1989-10-18 | 1993-05-12 | Maschinenfabrik Sulzer-Burckhardt AG | Piston compressor having pistonrod guide bearings |
| 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 |
| KR20100036550A (en) * | 2008-09-30 | 2010-04-08 | (주)신태양 | Front cover assembly and shaft sealing device for compressor used in vehicle air conditioner |
| 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 |
| CN202914277U (en) * | 2012-11-16 | 2013-05-01 | 沈阳远大压缩机股份有限公司 | Oil wiper with oil baffle plate |
| CN203584734U (en) * | 2013-11-28 | 2014-05-07 | 四川大川压缩机有限责任公司 | Oil scraping device for compressor |
-
2013
- 2013-11-28 CN CN201310614647.9A patent/CN103603787A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4706971A (en) * | 1983-08-25 | 1987-11-17 | Schirmer Alfred F | Seal ring for piston rods with partings |
| EP0424310B1 (en) * | 1989-10-18 | 1993-05-12 | Maschinenfabrik Sulzer-Burckhardt AG | Piston compressor having pistonrod guide bearings |
| 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 |
| KR20100036550A (en) * | 2008-09-30 | 2010-04-08 | (주)신태양 | Front cover assembly and shaft sealing device for compressor used in vehicle air conditioner |
| 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 |
| CN202914277U (en) * | 2012-11-16 | 2013-05-01 | 沈阳远大压缩机股份有限公司 | Oil wiper with oil baffle plate |
| CN203584734U (en) * | 2013-11-28 | 2014-05-07 | 四川大川压缩机有限责任公司 | Oil scraping device for compressor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909496A (en) * | 2016-05-13 | 2016-08-31 | 蚌埠市金鹏燃气设备制造有限公司 | Oil scraping device for compressor |
| CN106438289A (en) * | 2016-08-23 | 2017-02-22 | 柳州市国正机电物资有限责任公司 | Compressor oil scraper ring component |
| CN109642563A (en) * | 2016-08-26 | 2019-04-16 | 伯克哈特压缩机股份公司 | Oil-scraping ring assembly |
| CN109642563B (en) * | 2016-08-26 | 2021-05-25 | 伯克哈特压缩机股份公司 | Scraper ring assembly |
| CN113914808A (en) * | 2020-07-07 | 2022-01-11 | 中国石油天然气股份有限公司 | Oil extraction device |
| CN113914808B (en) * | 2020-07-07 | 2024-05-28 | 中国石油天然气股份有限公司 | Oil extraction device |
| CN116557268A (en) * | 2023-06-16 | 2023-08-08 | 烟台东德氢能技术有限公司 | Reciprocating compressor cylinder piston rod cooling seal guide assembly |
| CN117889063A (en) * | 2024-03-14 | 2024-04-16 | 东贝机电（江苏）有限公司 | Refrigerating compressor |
| CN117889063B (en) * | 2024-03-14 | 2024-05-17 | 东贝机电（江苏）有限公司 | Refrigerating compressor |
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Application publication date: 20140226 |
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| RJ01 | Rejection of invention patent application after publication |