CN201096071Y - Oil-free lubrication reciprocating air compressor - Google Patents
Oil-free lubrication reciprocating air compressor Download PDFInfo
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- CN201096071Y CN201096071Y CNU2007200878971U CN200720087897U CN201096071Y CN 201096071 Y CN201096071 Y CN 201096071Y CN U2007200878971 U CNU2007200878971 U CN U2007200878971U CN 200720087897 U CN200720087897 U CN 200720087897U CN 201096071 Y CN201096071 Y CN 201096071Y
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Abstract
The utility model provides a non-oil lubricating reciprocating air compressor, which comprises a compressor body, cylinder body pedestals, cylinder bodies, an interstage cooler, stuffing components and piston components, wherein, the cylinder body pedestals and the cylinder bodies are connected with the compressor body; the interstage cooler is connected between the first stage cylinder body and the second stage cylinder body; the stuffing components and the piston components are arranged in the cylinder body pedestals and the cylinder bodies. The utility model is characterized in that a guide and support mechanism composed of two guide sleeves are arranged in the stuffing components; a mechanism which can break oil, strip oil and seal to a piston rod is arranged between the two guide sleeves; the piston components depends on the guide and support mechanism in the stuffing components to guide and support; a piston ring is arranged on a piston body, and can automatically eliminate clearances of cylinder walls of the cylinder bodies. Compared with the existing congeneric air compressor, the non-oil lubricating reciprocating air compressor has simple structure and is stable and effective, and especially accords with up to the requirements of energy conservation and environmental protection.
Description
Technical field
The utility model relates to reciprocating compressor, particularly a kind of oil-free lubrication reciprocating compressor.
Background technique
Reciprocating compressor, since its efficient height, easy-maintaining, and the life-span is long, is the air compressor of present use amount maximum.But reciprocating air compressor commonly used, consumption of lubricating oil is very big, and every day, oil consumption can reach several kilograms to more than 20 kilograms, and finally flow to undergroundly, enter in the water, serious environment pollution, it is healthy to influence the workman.And, also be easy to generate high temperature, knot carbon, even internal combustion and explosion phenomenon may take place because oil lubrication is arranged.For a change these cover disease, and people will have the oil lubrication reciprocating air compressor, transform the oil-free lubrication reciprocating air compressor as.But the present oil-free lubrication reciprocating air compressor that uses, its structure all is to add a member between the fuselage of original oil lubrication air compressor and cylinder block, the piston body lengthening also is divided into many bodies, be forced to eye-bolt shaft and cylinder block, doing the weight and the length that cause piston assembly like this increases, and the upright cylinder of unit increases, and the cylinder that crouches increases, cause unit easily to vibrate, stability reduces and manufacture cost increases.In order to change this situation, Chinese patent ZL98216786.5 and ZL00225380.1 provide the filler assembly of improved reciprocating compressor, with what to the transformation of oil lubrication reciprocating air compressor is arranged, today of energy-saving and emission-reduction be a kind of effectively by way of.
Summary of the invention
The purpose of this utility model is on the basis of above-mentioned improved filler assembly, and a kind of novel and effective oil-free lubrication reciprocating compressor is provided.
This oil-free lubrication reciprocating compressor is made fuselage with crankcase, end at fuselage is connected with one-level cylinder-block base and one-level cylinder block, the other end is connected with secondary cylinder body base and secondary cylinder body, between one-level cylinder block and secondary cylinder body, be connected with interstage cooler, in the cylinder-block base of two cylinders of firsts and seconds and cylinder block, filler assembly and piston assembly are installed, its special way is that described filler assembly is made stuffing box with cylinder-block base, after being equipped with in the letter, preceding two guide sleeves, they form one pair of guiding, supporting mechanism, between two guide sleeves, first stuffing box that oil scraper ring is housed is installed successively, block ring and second stuffing box that seal ring is housed, they are formed one pair of energy piston rod are carried out oil resistance, frizing, and choked flow, the mechanism of sealing, described piston assembly relies on the guiding that guide sleeve constituted in the filler assembly, supporting mechanism guiding and supporting is equipped with on its piston body to regulate automatically and makes it the piston ring be close to the cylinder block casing wall.In order to alleviate the weight of piston motion parts, piston body can be made with light metal.For prolonging the life-span of crosshead body slideway on the fuselage, can adopt mobile slideway, can change after making its wearing and tearing.Interstage cooler between the I and II cylinder block, its cooler core can be a kind of winding type large size cooling units of mainly being made up of cooling water pipeline group and vertical what pipeline group's gas guide board and front and back tube sheet, cover plate.
Above-mentioned this oil-free lubrication reciprocating compressor is compared with the existing oil-free lubrication reciprocating compressor that uses, has tangible advantage, the existing oil-free lubrication reciprocating compressor of Shi Yonging, referring to accompanying drawing 6, its filler assembly complexity, generally the scheme of Cai Yonging is to add a member between the fuselage of original oil lubrication reciprocating compressor and cylinder-block base, with what oil-break, oil resistance, guiding, supporting mechanism are located on the piston body, force piston body and cylinder block lengthening, cause unit easily to vibrate, stability reduces.Long by the what piston assembly, guiding, supporting mechanism are housed on the piston body, increased the wearing and tearing of cylinder block, reduced its working life, also increased manufacture cost.
Oil-free lubrication reciprocating compressor of the present utility model, do not increase intermediate member, its filler assembly is installed in the cylinder-block base, can effectively intercept fluid in the fuselage (crankcase) to the cylinder block seepage, reach the purpose of oil-free lubrication, simultaneously, piston body in its piston assembly is guiding not, supporting mechanism, the piston body volume is little in light weight, leave certain interval between piston ring and the piston body bottom land, self-regulating function is arranged, be piston body when motion, under the effect of gas inflation, piston ring can be close on the cylinder block casing wall automatically, because piston body does not produce with cylinder block when central motion and contacts firmly, prolonged piston ring working life, reduced the wearing and tearing of cylinder block, the more important thing is that it has alleviated guiding, the burden of supporting mechanism, therefore oil-free lubrication reciprocating compressor of the present utility model only needs to install guiding in filler assembly, supporting mechanism gets final product stable operation.Oil-free lubrication reciprocating compressor of the present utility model has reached energy-saving and emission-reduction, reduction manufacture cost and has reduced the purpose of its operating cost.
Description of drawings
Fig. 1 is the utility model oil-free lubrication reciprocating air compressor structural representation
Fig. 2 is another configuration diagram of the utility model oil-free lubrication reciprocating air compressor
Fig. 3 is a kind of filler assembly structure principle chart of the utility model oil-free lubrication reciprocating air compressor
Fig. 4 is the another kind of filler assembly structure principle chart of the utility model oil-free lubrication reciprocating air compressor
Fig. 5 is a kind of interstage cooler structure principle chart of the utility model oil-free lubrication reciprocating air compressor
Fig. 6 is the existing oil-free lubrication reciprocating air compressor structural representation that uses
Among Fig. 60 ' be crankcase and fuselage, 1 " is piston assembly; 2 " being filler assembly, 3 " be cylinder-block base, 4 " is cylinder block, 30 is intermediate member, the 301 movable oil rings of using for oil resistance, 5 " be interstage cooler, 6 " be the secondary cylinder body, 15 is guiding mechanism, is respectively the crosshead body, piston rod, cylinder block and the piston ring that are connected with piston assembly 01 ", 12 ", 13 ", 14 ".
Embodiment
Fig. 1, Fig. 3 have illustrated an embodiment of the present utility model.This oil-free lubrication reciprocating compressor, make fuselage 0 with crankcase, be connected with one-level cylinder-block base 3 and one-level cylinder block 4 in the upper end of fuselage 0, left end at fuselage 0 is connected with secondary cylinder body base 7 and secondary cylinder body 6, in firsts and seconds cylinder block 4, be connected with interstage cooler 5 between 6, filler assembly 2 and piston assembly 1 are installed in one-level cylinder-block base 3 and one-level cylinder block 4, filler assembly 8 and piston assembly 9 are installed in secondary cylinder body base 7 and secondary cylinder body 6, filler assembly 2 in the described one-level cylinder is made stuffing box with one-level cylinder-block base 3, filler assembly in the stuffing box is pressed abd fixed in the stuffing box by Gland 26, back guide sleeve 21 and preceding guide sleeve 25 are installed in the letter, they form one pair of guiding, supporting mechanism, at two guide sleeves 21, first stuffing box 22 is installed between 25 successively, the block ring 23 and second stuffing box 24, the scraper ring 221 of two three pieces type structures is housed in first stuffing box 22, the seal ring 241 of two three pieces type structures is housed in second stuffing box 24, and scraper ring 221 and seal ring 241 are respectively by spring 222,242 tie up; One pair of oil resistance, oil scraping mechanism have been formed by the scraper ring 221 in the back guide sleeve 21 and first stuffing box 22, it can stop the fluid of going up ease in piston rod 12 circumferential plays scrapes to the greatest extent, make it from oil drainage hole 212 and oil-discharge trough 211, flow back in the fuselage (crankcase) 0, seal ring 241 in the block ring 23 and second stuffing box 24 has constituted one pair of choked flow and sealing mechanism, has played the effect that continues choked flow and sealing; Piston assembly 1 in the described one-level cylinder is made up of piston rod 12, piston body 13, piston ring 14 and connection tightening nut, and their rely on guiding, the supporting mechanism guiding in filler assembly 2 and support.Filler assembly 2 and piston assembly 1 in the filler assembly 8 in the described secondary cylinder and the structure composition of piston assembly 9 and principle and the one-level cylinder are identical, do not give unnecessary details.In the one-level cylinder block, the piston body 13 that is installed in piston rod 12 terminations is made by aluminum alloy, two piston rings 14 that have angular cut are installed on the piston body 13, leave the gap between piston ring 14 and piston body 13 bottom lands, because gassy in the gap, when piston body 13 in when motion, gas can blow piston ring 14 open, make on its casing wall that is close to one-level cylinder block 4, reach the effect in gap between automatic compensation and one-level cylinder block 4 casing walls, simultaneously since piston body 13 when central motion, do not produce and contact firmly with one-level cylinder block 4, alleviated guiding, the burden of supporting mechanism and crosshead body 01 has also reduced the wearing and tearing of piston ring 14 and one-level cylinder block 4, has prolonged its working life; In the secondary cylinder body, the piston body 13 in its piston body and piston ring and the one-level cylinder block is identical with piston ring 14, also repeats no more.The slideway of crosshead body 01,03 in the fuselage of present embodiment adopts mobile slideway 02,04 to be connected with fuselage 0, is convenient to maintenance, has also prolonged the fuselage life-span.
Fig. 2, Fig. 4, Fig. 5 have illustrated another embodiment of the present utility model.The oil-free lubrication reciprocating compressor of present embodiment, its critical piece 0 ', 1 ', 2 ', 4 ', 6 ', 7 ', 9 ' structural principle and embodiment one be basic identical, no longer describe in detail.The filler assembly 2 that different is in its one-level cylinder and the secondary cylinder ', 8 ', remove with embodiment one have identical structure 21 ', 22 ', 23 ', 24 ', 25 ', 26 ', 211 ', 212 ', 221 ', 222 ', 241 ', 242 ' outer, an oil-break oil-releasing mechanism also is installed below its stuffing box, it be cylinder-block base 3 ', 7 ' the below connect an oil-break ring box 27, be equipped with one in the box and be sleeved on the piston rod 12 by the oil-break ring 271 of four-piece type structure and tie up the oil-break member that spring 272 is formed, so it there is better oil resistance than embodiment one, the oil extraction effect.Another difference be one-level cylinder block 4 ' and secondary cylinder body 6 ' between connect interstage cooler 5 ', referring to Fig. 5, it is made up of cooler casing 51 and cooler core 52, cooler casing 51 comprises cylindrical shell 514 and end socket 510, main tube shell 512 is the double-layer hollow housing, it between shell wall cooling water passage 516, case top has drain opening 515, the bottom has water intake 517, thereby realize that cooling water flows into and discharge the purpose of the main tube of cooling shell 512, the rear end of main tube shell 512 links to each other with end socket 510 by rear flange 518, the suction port 519 that pressurized gas arranged on the rear flange 518 and the import of end socket 510 and one-level cylinder block 4 ' communicate, the below of main tube shell 512 have the outlet of relief opening 513 and exhaust cylindrical shell 514 and secondary cylinder body 6 ' communicate.Cooler core 52 is by the parallel cooling water pipeline group 525 who is embedded between front tube sheet 524 and the back tube sheet 527, be installed on the cooling water pipeline group 525 and vertical with it semicircle gas guide board 526 and be installed in respectively before, back tube sheet 524, before outside 527, back shroud 523,528 form, before, back tube sheet 524,527 with before, back shroud 523, be provided with hydroecium 529 between 528, and the port 520 of the cooling water pipeline that each hydroecium 529 corresponding what is certain, the water intake 521 and the drain opening 522 that have cooling water on the front shroud 523 communicate with hydroecium 529, therefore form from water intake 521 through hydroecium 529 and cooling water pipeline 525 full of twists and turns cooling water mainstream channels to drain opening 522; Cooler core 52 axially is sleeved in the main tube shell 512 of cooler casing 51, and is fixing with the forward flange 511 of main tube shell 512 by front shroud 523.Therefore, after the gas of one-level cylinder block 4 ' compression enters interstage cooler 5 from end socket 510 imports, enter exhaust pipe body 514 after the winding type air flue cooling that between cooling water pipeline group 525 and gas guide board 526, forms and be discharged in the secondary cylinder body 6 '.Details are referring to Chinese patent ZL200420076495.8.
Claims (4)
1, a kind of oil-free lubrication reciprocating compressor, make fuselage (0) with crankcase, (0 '), end at fuselage is connected with one-level cylinder-block base (3), (3 ') and one-level cylinder block (4), (4 '), the other end is connected with secondary cylinder body base (7), (7 ') and secondary cylinder body (6), (6 '), in one-level cylinder block (4), (4 ') and secondary cylinder body (6), be connected with interstage cooler (5) between (6 '), (5 '), cylinder-block base (3) at two cylinders of firsts and seconds, (3 '), (7), (7 ') and cylinder block (4), (4 '), (6), filler assembly (2) is installed in (6 '), (2 '), (8), (8 ') and piston assembly (1), (1 '), (9), (9 '), it is characterized in that the filler assembly (2) in described one-level or the secondary cylinder, (2 '), (8), (8 ') are with cylinder-block base (3), (3 '), (7), (7 ') make stuffing box, after being equipped with in the letter, preceding two guide sleeves (21), (21 '), (25), (25 '), they form one pair of guiding and supporting mechanism, in two guide sleeves (21), (21 '), (25), be equipped with successively between (25 ') oil scraper ring (221) is housed, first stuffing box (22) of (221 '), (22 '), block ring (23), (23 ') and seal ring (241) is housed, second stuffing box (24) of (241 '), (24 '), they are formed can be to piston rod (12), (12 ') frizing, the mechanism of oil resistance and sealing, piston assembly in described one-level or the secondary cylinder (1), (1 '), (9), (9 ') rely on filler assembly (2), (2 '), (8), guiding in (8 ') and supporting mechanism guiding and support, piston body (13), be equipped with on (13 ') can with cylinder block (4), (4 '), (6), (6 ') casing wall is close to automatically and is eliminated the piston ring (14) in its gap, (14 ').
2, oil-free lubrication reciprocating compressor according to claim 1 is characterized in that piston body (13), (13 ') in piston assembly (1), (1 '), (9), (9 ') are made with light metal.
3, oil-free lubrication reciprocating compressor according to claim 1 is characterized in that the crosshead body slideway in the fuselage is mobile slideway (02), (04).
4, according to claim 1 or 2 or 3 described oil-free lubrication reciprocating compressors, it is characterized in that being installed in the interstage cooler (5) between cylinder block (4), (6), its cooler core (52) is a kind of by parallelly being embedded in cooling water pipeline group (525) between front tube sheet (524) and the back tube sheet (527), being installed in that cooling water pipeline group (525) goes up and vertical with it gas guide board (526) and be installed in the outer forward and backward cover plate (523) of forward and backward tube sheet (524), (527), the winding type large size cooling unit that (528) are formed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200878971U CN201096071Y (en) | 2007-10-29 | 2007-10-29 | Oil-free lubrication reciprocating air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200878971U CN201096071Y (en) | 2007-10-29 | 2007-10-29 | Oil-free lubrication reciprocating air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN201096071Y true CN201096071Y (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200878971U Expired - Lifetime CN201096071Y (en) | 2007-10-29 | 2007-10-29 | Oil-free lubrication reciprocating air compressor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560968A (en) * | 2009-05-20 | 2009-10-21 | 浙江鸿友压缩机制造有限公司 | Straight-line reciprocating piston type compressor |
| CN102094785A (en) * | 2011-03-16 | 2011-06-15 | 卢高 | Miniature piston air pump without oil lubrication |
| CN102434435A (en) * | 2011-12-19 | 2012-05-02 | 安庆市佰联无油压缩机有限公司 | Oil-free lubrication high-pressure air compressor |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN108005875A (en) * | 2017-12-07 | 2018-05-08 | 柳工（柳州）压缩机有限公司 | Natural gas vehicle refueling station compressor |
-
2007
- 2007-10-29 CN CNU2007200878971U patent/CN201096071Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101560968A (en) * | 2009-05-20 | 2009-10-21 | 浙江鸿友压缩机制造有限公司 | Straight-line reciprocating piston type compressor |
| US9856866B2 (en) | 2011-01-28 | 2018-01-02 | Wabtec Holding Corp. | Oil-free air compressor for rail vehicles |
| CN102094785A (en) * | 2011-03-16 | 2011-06-15 | 卢高 | Miniature piston air pump without oil lubrication |
| CN102434435A (en) * | 2011-12-19 | 2012-05-02 | 安庆市佰联无油压缩机有限公司 | Oil-free lubrication high-pressure air compressor |
| CN108005875A (en) * | 2017-12-07 | 2018-05-08 | 柳工（柳州）压缩机有限公司 | Natural gas vehicle refueling station compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |