CN85103401B - Improved lubrication for rotary compressor vane - Google Patents
Improved lubrication for rotary compressor vane Download PDFInfo
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- CN85103401B CN85103401B CN85103401A CN85103401A CN85103401B CN 85103401 B CN85103401 B CN 85103401B CN 85103401 A CN85103401 A CN 85103401A CN 85103401 A CN85103401 A CN 85103401A CN 85103401 B CN85103401 B CN 85103401B
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- slide plate
- cylinder part
- compressor
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Abstract
A sliding vane groove and a lubricating oil passage (21) in a cylinder component (3) of a rotary sliding vane air compressor are made into the structure: the radial length of a sliding vane groove wall (20a) on one side of the low pressure surface of a sliding vane (5) is smaller than that of the groove wall on the opposite high pressure side; in the shortened sliding vane groove wall at the low pressure side, since the lubrication in a dangerous area (F1) at the innermost end of the groove and particles resulted from the abrasion of the sliding vane in the initial breaking-in process are improved, the abrasion is reduced; as for the horizontal air compressor, the oil surface of the lubricating oil can be kept lower than the radial outermost end of the wall (20a) so as to prevent the oil from being sucked into a low pressure cavity (17) when the air compressor stops.
Description
The present invention concerns a kind of refrigeration agent rotary slide sheet compressor that is used for, have more the structure that fallow land is related to a kind of cylinder groove, it is lubricated that this structure can make slip or reciprocating type slide plate improve, the seepage that reduces wear and lubricate, and can promptly the particulate that weares and teares be rinsed out.
As Figure 1-3, be a kind of vertical compressor that belongs to such used for refrigerator, Japanese patent application No57-165903, open on May 12nd, 1984.Here only narrate its structure briefly, and its working principle is the crowd know with routine.One cylinder part (3) clamped or be bolted in the outer casing (1) a pair of facing to base plate on, an eccentric cylinder piston (4) of installing is driven by bent axle (2) by electric notor and rotates in cylinder part, one foliated slide plate (5) is contained in groove (7) lining in the cylinder part slidably, spring (6) is placed in inwardly presses slide plate that it is closely contacted with piston area in the hole (8), just drive the slide plate to-and-fro motion when piston rotates.Slide plate is divided into hyperbaric chamber and low-pressure cavity (18), (17) to the cavity between piston and the cylinder part, defines their scope simultaneously.The low pressure that refrigeration agent is sucked into slide plate in the storage is (slide plate below as shown in Figure 2) on one side, be compressed again and jet advance space (11) lining of housing with motor and cylinder part encirclement.The output tube of one pressure fluid is contained in the top of housing.So the inside of housing is in high pressure values, the interior lubricant oil (9) of other storage tank flowed into vane slot (7) with the lubricated blade that slides at the bottom of this pressure was utilized to force housing.
Friction causes wearing and tearing, and slip slide plate (5) in the cylinder part and the wearing and tearing that the groove of slide plate (5) is installed are insoluble problems of this compressor always.This wearing and tearing have aggravated owing to the pressure that acts on the slide plate two sides is different, and slide plate is between hyperbaric chamber and the low-pressure cavity, and pressure reduction pushes away the top of slide plate in the chamber downwards, sees Fig. 2, and when piston rotated in addition, frictional force also pulled down the top of slide plate.A consequence of this wearing and tearing is that just along the lower wall (see figure 2) infiltration low-pressure cavity of vane slot (7), reason is that low-pressure cavity has pull of vacuum partly when stopping to lubricant oil when compressor stops.Owing to entered lubricant oil in the cylinder part (3), make the crankshaft bearing wearing and tearing very fast because of liquid has incompressibility again, and the destruction of bearing can have been shortened the useful working life of compressor widely.
An approach that reduces the vane slot wearing and tearing is to drive a horizontal oil groove at groove (7) by on the wall of blade low pressure area.This oil groove can make by spring eye (8) and be supplied to the lubricant oil of vane slot to distribute more evenly, simultaneously also help the metal fragment that the wearing and tearing because of vane slot produce is rinsed out, when this especially used for the first time to compressor, the running-in in vane slot of reciprocating slide plate was more helpful.This comparatively practical facility of method of driving oil groove, but, make this method expense expensive because of the restricted problem of close-fitting problem with the position that puts in place, and make the cylinder part (3) of the general more cheap sintering process making of employing complicated.
To the wearing and tearing of the chute that occurs in the said structure with lubricate a difficult problem, rotary slide sheet cylinder of compressor parts of the present invention have adopted common sintering technology to solve this difficulty, and structurally reform, make the slide plate cell wall length that contacts with reciprocating slide plate low pressure surface, on the direction of vane motion, be shorter than the length of opposite with the slide plate cell wall of slide plate high pressure surface contact.
The summary of accompanying drawing
Fig. 1 is the vertical cross-section diagram of a common vertical rotary slide sheet type compressor.
Fig. 2 is a compressor shown in Figure 1 along the sectional view that II-the II line is done.
Fig. 3 is a compressor shown in Figure 2 along the sectional view that III-the III line is done.
Fig. 4 is the sectional view that a simplification, size are amplified, and it has summarized the slide plate and the vane slot position of compressor arrangement of the present invention, is used to explain the principle and the working condition of there.
Fig. 5 is the vertical cross-section diagram of a horizontal rotary slide sheet compressor of the present invention.
Fig. 6 is the detailed description along Fig. 6 VI-sectional view most preferred embodiment that the VI line is done.
As shown in Figure 4, (for ease of explaining, Fig. 4 amplifies) low pressure in the cylinder part (3) and the different pressures between the hyperbaric chamber (17) (18) and rotary-piston (4) be to the result of the comprehensive function of the frictional force at slide plate (5) top, generation is to the directed force F of the expose portion of slide plate in the cylinder part, this directed force F is ordered about slide plate clockwise direction rotation in chute, power F be by at the low voltage side of relative two ends of chute and on high-tension side cell wall 20a, 20b facing to two reaction force F that slide plate applied
1And F
2Balance in addition.F
1And F
2Point of action become the dangerous spot or the dangerous limit of vane slot wearing and tearing, these places are places that friction and wear mainly produces, power F
2Point of action in vane slot high pressure wall (20b) outermost end radially, this position influence is little, because of the high pressure of lining, chamber (18) has stoped the particulate of lubricant oil and wearing and tearing by the gap (being exaggerated among the figure) between slide plate (5) and the wall (20b).
Vane slot (20) in the cylinder part that the present invention relates to and at the passage (21) of vane slot outermost end radially, all be to use general more cheap sintering technology to make, this channel parallel is in the axis of compressor, be used to the lubricant oil that distributes, the wall (20a) of slide plate low pressure surface vane slot on one side is shorter than the high pressure slide plate cell wall (20b) on one side on opposite significantly, in fact this reach by the oily passage (21) that radially extends in slide plate low pressure one side inwardly, channel design with previous complete symmetry compares, and this is a kind of asymmetric form.
The structure of this form, the shortening of the slide plate cell wall on the step-down side can be reduced friction and wear and tear, improve the slide plate lubricating condition and be reduced in slide plate low pressure surface vane slot on one side at the force of sliding friction that leads to cylinder part one end, simultaneously favourablely rinse out the metal particle under the wearing and tearing when initial running-in slide plate, the reason that produces these benefits is also not fully aware of, but more above-mentioned improvement are likely owing to the event of having shortened between slide plate and the wall (20a) of chute gap length, because lubricant oil must arrive the edge the most easy to wear that is subjected to the directed force F effect by this gap, the particulate that weares and teares simultaneously also must rinse out by passage (21) with lubricant oil by this gap.Be noted that the shortening of slide plate cell wall (20a) radial length simultaneously, cause bearing reducing of zone, but do not bring injurious effects.As shown in Figure 4, when compressor operating, in fact slide plate and wall (20a) radially do not have the contact of sliding between the foot because slide plate has rotated under the effect of power F.
Now narrating the present invention uses more specifically, as shown in Figure 5 and Figure 6, a kind of horizontal coolant compressor, that compressor has the parts of same Fig. 1-3 same reference numbers, because the 26S Proteasome Structure and Function of part is identical, to no longer be described in detail, shown in Figure 6 as the cross section, vane slot (20) and lubrication channel (27) are to form like this: the length of slide plate (5) low pressure surface slide plate cell wall (20a) on one side, in fact be shorter than the length of high pressure surface slide plate cell wall (20b) on one side, it has just reached all advantages and the improvement of having narrated as Fig. 4 like this.Explanation more in depth, lubricant oil (9) liquid level preferably remain on the radially outer most edge that shortens chute (20a) below, lubricant oil keeps such liquid level, even there is the vacuum of part in compressor when stopping, oil (9) can not be sucked into low-pressure cavity (17) yet; In the time of on liquid level is in chute (20a) outer rim, high pressure in the housing in the space (11) will force oil to enter cylinder chamber (17) by the gap between slide plate and the cell wall (20a), keep a kind of like this oil level, also can not destroy or disturb the proper lubrication of slide plate, because when work, slide plate often inserts or pulls out fluid, because the result that capillary adhesion and oil spatter can make on the slide plate with an amount of oil.
Though the present invention is at length open in relevant horizontal compressor, its design and advanced vertical compressor also are same being suitable for, and are conspicuous problems to the technology in this field.
Claims (4)
1, a kind of rotary slide sheet compressor, comprise a cylinder part (3), the circular piston of an eccentric drive (4) is installed in the cylinder part rotatably, a chute (20) is radially arranged in the cylinder part, one foliated slide plate (5) is slidably mounted in this chute, spring members (6) is radially inwardly to sliding pressurization, the top of slide plate is abutted against on the piston, and cylinder part is divided into low pressure and two not isometric chambeies of high pressure (17), (18), one grease channel (21) is arranged in cylinder part simultaneously, be connected with the radially outermost end of chute, it is characterized in that:
The radial length m of slide plate low voltage side runner wall (20a) on one side is shorter than the radial length 1 of slide plate high pressure side runner wall (20b).
2, compressor as claimed in claim 1, a part that it is characterized in that the oily passage of slide plate low voltage side is radially extended inwards, and the radial length of contiguous runner wall is shortened, form the oily passage of asymmestry section, at the radial length of the oily passage of slide plate low voltage side radial length greater than the on high-tension side oily passage of slide plate.
3, compressor as claimed in claim 1, it is characterized in that described compressor is horizontal, be inclusive in the pressure housing of a sealing, slide plate and groove are arranged in cylinder part lowest order radially, lubricant oil (9) leaves in the housing, and its maximum oil face is lower than the radially outermost end and the lowest edge of short cell wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85103401A CN85103401B (en) | 1985-04-17 | 1985-04-17 | Improved lubrication for rotary compressor vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85103401A CN85103401B (en) | 1985-04-17 | 1985-04-17 | Improved lubrication for rotary compressor vane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103401A CN85103401A (en) | 1986-10-15 |
| CN85103401B true CN85103401B (en) | 1988-09-14 |
Family
ID=4793163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85103401A Expired CN85103401B (en) | 1985-04-17 | 1985-04-17 | Improved lubrication for rotary compressor vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85103401B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3718027B2 (en) * | 1997-03-31 | 2005-11-16 | 東芝キヤリア株式会社 | Rotary compressor |
| CN106382765B (en) * | 2015-07-31 | 2019-05-21 | 钱建忠 | A kind of cold/hot air-conditioning device that circulation line is oil-free |
| CN105698425B (en) * | 2016-02-22 | 2018-06-15 | 广东美芝制冷设备有限公司 | Refrigerating plant |
| CN107152402A (en) * | 2016-03-02 | 2017-09-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and its cylinder assembly |
| CN107165828A (en) * | 2017-07-28 | 2017-09-15 | 广东美芝制冷设备有限公司 | Compressor |
-
1985
- 1985-04-17 CN CN85103401A patent/CN85103401B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN85103401A (en) | 1986-10-15 |
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