CN202971084U - Inclined plate type sway reciprocating piston oil-less air compressor - Google Patents
Inclined plate type sway reciprocating piston oil-less air compressor Download PDFInfo
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- CN202971084U CN202971084U CN 201220694561 CN201220694561U CN202971084U CN 202971084 U CN202971084 U CN 202971084U CN 201220694561 CN201220694561 CN 201220694561 CN 201220694561 U CN201220694561 U CN 201220694561U CN 202971084 U CN202971084 U CN 202971084U
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Abstract
The utility model belongs to the technical field of compressors and relates to an inclined plate type sway reciprocating piston oil-less air compressor which comprises a driving plate, an inclined plate, a connecting rod, a piston, a cylinder and a box body. One end of the connecting rod is connected with the piston. The other end of the connecting rod is connected with the inclined plate. A shaft seal is arranged on the connecting rod. The inclined plate type sway reciprocating piston oil-less air compressor is characterized in that a shaft seal body is provided with an abducent sealing skirt which is in a sheet shape and capable of extending, swaying and deforming. The sealing skirt is fastened on the box body or the cylinder in a sealing mode. A sealing lip is fastened on a rod body of the connecting rod in the sealing mode and in sway and reciprocating motion along with the connecting rod. Due to the fact that the sealing lip is not in relative motion with the rod body of the connecting rod, and a fastening connection structure is respectively adopted by the connecting rod and the piston, the problem that lubricating oil in the box body is seeped into the cylinder is reliably solved. Due to the fact that the shaft seal is provided with the sealing skirt structure which is capable of extending, swaying and deforming, the problem that the shaft seal is in the sway and reciprocating motion along with the connecting rod is solved. The inclined plate type sway reciprocating piston oil-less air compressor has the advantages of guaranteeing that the compressor is capable of reliably outputting oil-less compressed air working media.
Description
Technical field
The utility model belongs to the Compressor Technology field, relates to a kind of oblique tray type compressor, relates in particular to a kind of inclined disc type reciprocating piston oil-free air compressor that waves.
Background technique
Oblique tray type compressor has the advantages such as compact structure, dynamic balance performance are good, has therefore obtained in fields such as refrigeration air-conditioner and gas compressions using very widely.The working principle of such compressor is: at first drive a swash plate by prime mover and carry out the dead axle rotation motion, then utilize swash plate to produce the shift reciprocately of certain amplitude at axial direction, then do the reciprocating swing motion by the swash plate drive link, and then reciprocating in cylinder by the connecting rod driven plunger again, finally realize the periodically-varied of compressor operating chamber volume.
but in present air compressor field, existing oblique tray type compressor also is difficult to export high-quality oil-free air working medium, main cause is the interior necessary lubricant oil that stores of the casing of oblique tray type compressor, in order to this kinematic pair of swash plate/drive plate is lubricated, yet because connecting rod has by a relatively large margin the to-and-fro motion of waving, brought great difficulty to carrying out the isolation of nothing oil between casing and cylinder thus: at first, traditional and the reciprocating shaft seal that is sealed and matched of connecting rod, must have relative shift reciprocately between its sealing lip and connecting rod shank outer surface, wave under reciprocal situation and exist at connecting rod, sealing lip has the lip ovalizing deflection, back and forth sluggishness and circumference are encircled the phenomenons such as power is inhomogeneous, therefore can't stop the lubricant oil in the swash plate case to infilter cylinder along the shaft surface fully, secondly, what the piston of tradition slant plate type compressor and connecting rod adopted is the form that is rotationally connected, their cooperation place must rely on lubricant oil to be lubricated, exactly be disposed in the inside of cylinder due to these positions, therefore can't avoid lubricant oil to fall to splashing on cylinder wall surface, so mix in the pressurized air working medium that also can cause exporting, lubricant oil be arranged, in addition, the connecting rod of tradition slant plate type compressor is except waving to-and-fro motion, also can rotate by the axis around own shaft under the effect of frictional force, so must cause the sealing of conventional linkage shaft seal more difficult, result has increased lubricant oil and has infiltered the probability of cylinder from the swash plate case, and equally also can make to mix in the pressurized air working medium of output has lubricant oil.
Summary of the invention
The problem that can not guarantee to export oil-free air working medium for traditional oblique tray type compressor existence, the utility model provides a kind of inclined disc type reciprocating piston oil-free air compressor that waves, purpose is effectively to solve the sealing problem between pitman shaft envelope and connecting rod shank outer surface, also solve in addition between connecting rod and piston without oily matching problem, thereby guarantee that compressor can export the pressurized air working medium without oil reliably.
the purpose of this utility model is achieved like this: a kind of inclined disc type reciprocating piston oil-free air compressor that waves, it comprises: drive plate, swash plate, connecting rod, piston, cylinder and casing, one end of connecting rod is connected with piston, the other end of connecting rod is connected with swash plate, described swash plate is arranged in casing, be provided with shaft seal in addition and connecting rod is sealed and matched, described shaft seal includes shaft seal body and sealing lip, it is characterized in that: described shaft seal body is provided with the laminar and scalable sealed skirt that waves distortion of abduction, described sealed skirt sealing is fastened on casing or cylinder, described sealing lip seals on the shaft that is fastened on connecting rod and follows connecting rod and wave together to-and-fro motion.
Above-mentioned sealed skirt includes wave structure.
The peak value of each crest of the wave structure of above-mentioned sealed skirt is the layout that gradually increases or gradually dwindle.
The wave structure of above-mentioned sealed skirt is the concentric circle layout, and the crest peak value of larger its ripple of distribution radius is larger.
Join in above-mentioned shaft seal and be lined with fibre cloth.
Above-mentioned connecting rod and piston adopt and are fastenedly connected or are integrated making.
Be fitted with the seal ring that self-enrichment material is made on above-mentioned piston.
Be fitted with the anti-turn spring that prevents that connecting rod from rotating between above-mentioned connecting rod and swash plate.
Above-mentioned compressor is provided with stop pin and the anti-rotation groove that prevents the connecting rod rotation.
The shaft-driven overhead cooling fan of the power of the above-mentioned useful compressor of compressor configuration.
The inclined disc type reciprocating piston oil-free air compressor that waves of the utility model, the employing sealing lip seals the cooperating structure on the shaft that is fastened on connecting rod, owing to there not being relative movement between them, in casing, lubricant oil is in the problem that infilters cylinder from connection-rod thereby solved reliably; Employing has the laminar and flexible of abduction and waves the structure of the sealed skirt of distortion, adapts to and to follow connecting rod and wave reciprocating problem thereby effectively solved shaft seal; Adopt connecting rod and piston to be fastenedly connected or to be integrated the structure of making, be fitted with the seal ring that self-enrichment material is made simultaneously on piston, make the cooperation place of connecting rod and piston need not lubricant oil and be lubricated, thereby help to prevent that lubricant oil from dripping inlet casing; Employing prevents the structure of connecting rod rotation, has alleviated the sealing burden of connecting rod shaft seal, thereby has improved to a certain extent the sealing reliability of shaft seal; The said structure measure guaranteed compressor can export reliably without oil pressurized air working medium.
Description of drawings
Fig. 1 is the inclined disc type axonometric drawing that waves an embodiment of reciprocating piston oil-free air compressor of the utility model;
Fig. 2 is the inclined disc type generalized section of waving the reciprocating piston oil-free air compressor of the utility model shown in Figure 1;
Fig. 3 is the view of the inclined disc type corresponding piston of a kind of shaft seal embodiment that waves the reciprocating piston oil-free air compressor of the utility model when being in bottom dead center position;
Fig. 4 is the view of the corresponding piston of shaft seal embodiment shown in Figure 3 when being in top dead center position;
Fig. 5 is the view of the inclined disc type corresponding piston of another kind of shaft seal embodiment that waves the reciprocating piston oil-free air compressor of the utility model when being in bottom dead center position;
Fig. 6 is the view of the corresponding piston of shaft seal embodiment shown in Figure 5 when being in top dead center position;
Fig. 7 is the structural representation that the inclined disc type shaft seal of waving the reciprocating piston oil-free air compressor of the utility model has the radial corrugation structure;
To be that the utility model is inclined disc type wave the example structure schematic diagram that the reciprocating piston oil-free air compressor arranges anti-turn spring to Fig. 8;
Fig. 9 is that the inclined disc type reciprocating piston oil-free air compressor swash plate that waves of the utility model arranges the example structure schematic diagram that stop pin and connection rod sphere arrange anti-rotation groove;
Figure 10 is that the inclined disc type reciprocating piston oil-free air compressor swash plate that waves of the utility model arranges another example structure schematic diagram that stop pin and connection rod sphere arrange anti-rotation groove;
Figure 11 is that the inclined disc type reciprocating piston oil-free air compressor connecting rod that waves of the utility model arranges the example structure schematic diagram that stop pin and swash plate arrange anti-rotation groove;
Figure 12 is that the inclined disc type reciprocating piston oil-free air compressor connecting rod that waves of the utility model arranges the example structure schematic diagram that stop pin and casing arrange anti-rotation groove.
Embodiment
The below is further described the utility model with specific embodiment, referring to Fig. 1-12:
a kind of inclined disc type reciprocating piston oil-free air compressor that waves, it comprises drive plate 1, swash plate 2, connecting rod 3, piston 4, cylinder 5 and casing 6, wherein an end of connecting rod 3 is connected with piston 4, and the other end of connecting rod 3 is connected with swash plate 2, and described swash plate 2 is arranged in casing 6, be provided with in addition shaft seal 7 and be sealed and matched with connecting rod 3, described shaft seal 7 includes shaft seal body 7a and sealing lip 7b, and wherein sealing lip 7b mainly is responsible for forming with connecting rod 3 and is sealed and matched, drive plate 1 is done the dead axle rotation motion under the drive of motor or internal combustion engine prime movers, swash plate 2 is activated the driving of dish 1 and turns round, because swash plate 2 and himself rotational axis are slanted arrangement, therefore swash plate 2 will inevitably be formed with the shift reciprocately of certain amplitude at axial direction, so the reciprocating swing of doing in certain amplitude at the driving lower link 3 of swash plate 2 moves, and and then reciprocating in the cylinder hole of cylinder 5 by connecting rod 3 driven plunger 4, finally realize the periodically-varied of compressor operating chamber volume, need to prove, the function of shaft seal 7 is that the lubricant oil within shutoff casing 6 infilters in cylinder 5, can export the high-quality pressurized air working medium without oil to guarantee compressor, shaft seal 7 adopts yielding and has certain flexible material to make for this reason, as various rubber or composite material commonly used in prior art, greatest feature of the present utility model is: the laminar and scalable sealed skirt 7c that waves distortion that is provided with abduction on described shaft seal body 7a, described sealed skirt 7c sealing is fastened on casing 6 or cylinder 5, described sealing lip 7b seals on the shaft that is fastened on connecting rod 3 and follows connecting rod 3 and wave together to-and-fro motion, owing to adopting sealing lip 7b sealing to be fastened on cooperating structure on the shaft of connecting rod 3, therefore there is not relative movement between them, therefore the lubricant oil that has solved reliably in casing 6 infilters the problem of cylinder 5 from the shaft of connecting rod 3, the structure of the sealed skirt 7c of distortion is waved in the laminar and flexible that simultaneously has an abduction due to employing, therefore effectively having solved shaft seal 7 adapts to and follows connecting rod 3 and wave reciprocating problem, another characteristic of the present utility model is: adopt connecting rod 3 and piston 4 to be fastenedly connected or to be integrated the structure of making, the seal ring 8 that equipped employing self-enrichment material such as filling polytetrafluoroethylene (PTFE) etc. are made on piston 4 simultaneously, make on the one hand the pivot pin structure that no longer exists needs to lubricate that coordinates between connecting rod 3 and piston 4, this is lubricated kinematic pair to seal ring/cylinder also to need not on the other hand to obtain lubricant oil in casing 6, in other words seal ring 8 and cylinder 5, connecting rod 3 can not produce oil pollution to the working medium in cylinder 5 with coordinating of piston 4, therefore be conducive to the pure pressurized air working medium of compressor output.
the utility model is in order to make shaft seal 7 can adapt to better the to-and-fro motion of waving of connecting rod 3, the sealed skirt 7c of shaft seal 7 can be made wave structure, wherein ripple struction both can adopt axial ripple layout (as shown in Figure 1, can be described as folded shape fluxion structure) also can adopt the radial corrugation layout (as shown in Figure 7, can be described as the dish-type fluxion structure), distortion is waved in the stretching, extension that utilizes above-mentioned ripple struction can effectively increase sealed skirt 7c, thereby can adapt to better the to-and-fro motion of waving of connecting rod 3, Fig. 3 and Fig. 4 provide is the deformation state figure of piston certain shaft seal 7 when being in respectively bottom dead center position and top dead center position, Fig. 5 and Fig. 6 provide is the piston deformation state figure that another kind has the shaft seal 7 of axial fluxion structure when being in respectively bottom dead center position and top dead center position, as seen ripple struction can adapt to preferably and waves toward complex deformation, need to prove, above-mentioned ripple struction does not also require that each fluxion structure is in full accord, can adopt different ripple size and layout, such as the layout of the alternate layout of size interval, distribution density interphase, the layout of size order decay, layout that density is decayed one after another etc., certainly, the simplest way is that each ripple struction is made identical structure, but best way is but each crest with the wave structure of sealed skirt 7c is the layout that gradually increases or gradually dwindle, line (or connecting face) as each crest can be the various lines (or face) that increase progressively or successively decrease, and typically can be decay line (or face) etc., the fairly simple preparation process layout of another one is, the wave structure of sealed skirt 7c is distributed by the concentric circle layout, this moment each ripple structure can be identical can be not identical yet, when adopting the ripple struction of same configuration not by the larger layout of the crest peak value of larger its ripple of distribution radius for better, it is to be noted, the concentric circle layout both can be carried out layout (as shown in Figure 7) by the radial concentric circle also can carry out layout (as Fig. 1, Fig. 2, Fig. 5 and shown in Figure 6) by axial concentric circle, when so-called radial concentric circle layout refers to that shaft seal 7 is free state, each fluxion structure roughly distributes around the same center of circle, so-called axially concentric circle layout refers to that each fluxion structure roughly distributes around same axis when shaft seal 7 is free state, can certainly adopt the radial concentric circle to mix the arrangement form of distribution together with axial concentric circle, it is pointed out that fluxion structure can also adopt helical ripple layout (not shown), if if this moment the axial ripple struction worm structure radial corrugation structure texture structure of similar disc of similar bolt.In addition, in order to increase the working life of shaft seal 7 when reciprocating swing is worked, lining fibre cloth (not shown) can be joined in shaft seal 7, tensile strength and the fatigue resistance of shaft seal 7 can be greatly improved like this.
Due to slant plate type compressor in order to adapt to the rocking action of connecting rod 3, its connecting rod 3 often adopts the mode that is connected of ball-joint with swash plate 2, thus under the effect in frictional force in the middle of operation process, connecting rod 3 can produce the rotation around self shaft axis, result has increased the sealing difficulty between shaft seal 7 and connecting rod 3, and the rotation of limiting rod 3 is benefited for this reason; Can be equipped with for reaching this purpose the anti-turn spring 9 that prevents that connecting rod 3 from rotating, on the shaft that an end and the swash plate 2 of anti-turn spring 9 is fastenedly connected, the other end of anti-turn spring 9 is fastened on connecting rod 3 (as shown in Figure 8); Another way that prevents connecting rod 3 rotations is, when connecting rod 3 adopts bulb to connect with swash plate 2, offer anti-rotation groove 3a on bulb, and stop pin 2a is set on swash plate 2 coordinates with this anti-rotation groove 3a, as shown in Figure 9 and Figure 10, wherein in Fig. 9 stop pin 2a be that lateral pin layout anti-rotation groove 3a is the translot layout, stop pin 2a is radial peg layout anti-rotation groove 3a and is the radial groove layout in Figure 10; Prevent that connecting rod 3 rotations from also having a way to be, to be arranged on swash plate 2 and stop pin 2a will be opened on connecting rod 3 at anti-rotation groove 3a exactly, as shown in figure 11, this moment, stop pin 2a was fastenedly connected on the shaft of connecting rod 3 or stop pin 2a and connecting rod 3 are integrated making, and anti-rotation groove 3a is fastened on swash plate 2 with the form of opening slot pin; In addition, stop pin 2a is opened on connecting rod 3 and anti-rotation groove 3a is opened in also can prevent connecting rod 3 rotations on casing 6, as shown in figure 12.
It is worthy of note, in order to obtain without oily delivery air working medium reliably, just must improve the functional reliability of shaft seal 7, and an effective way that improves shaft seal 7 functional reliabilities is exactly to manage to reduce the complete machine temperature of compressor, compressor configuration of the present utility model has a shaft-driven overhead cooling fan 10 of the power with compressor for this reason, utilizes this overhead cooling fan 10 directly compressor to be dispelled the heat.
The utility model employing sealing lip 7c seals the cooperating structure on the shaft that is fastened on connecting rod 3, owing to there not being relative movement between them, infilters the problem of cylinder 5 from connecting rod 3 shafts therefore solved reliably the interior lubricant oil of casing 6; The structure of distortion is waved in the laminar and flexible that has abduction due to sealed skirt 7c, adapts to and follows connecting rod 3 and wave reciprocating problem therefore effectively solved shaft seal 7; Owing to adopting connecting rod 3 and piston 4 to be fastenedly connected or to be integrated the structure of making, be fitted with simultaneously the seal ring 8 that self-enrichment material is made on piston 4, make the cooperation place of connecting rod 3 and piston 4 need not lubricant oil and be lubricated, therefore help to prevent in lubricant oil drippage inlet casing 5; Prevent the structure of connecting rod 3 rotations due to employing, alleviated the sealing burden of shaft seal 7, so improved to a certain extent the sealing reliability of shaft seal 7; In sum, said structure measure of the present utility model guaranteed compressor can export reliably without oil pressurized air working medium.
Above-described embodiment is only some preferred embodiments of the present utility model; be not to limit according to this protection domain of the present utility model; therefore: all various equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.
Claims (10)
1. inclined disc type reciprocating piston oil-free air compressor that waves, comprise: drive plate, swash plate, connecting rod, piston, cylinder and casing, one end of connecting rod is connected with piston, the other end of connecting rod is connected with swash plate, described swash plate is arranged in casing, be provided with shaft seal in addition and connecting rod is sealed and matched, described shaft seal includes shaft seal body and sealing lip, it is characterized in that: described shaft seal body is provided with the laminar and scalable sealed skirt that waves distortion of abduction, described sealed skirt sealing is fastened on casing or cylinder, described sealing lip seals on the shaft that is fastened on connecting rod and follows connecting rod and wave together to-and-fro motion.
2. a kind of inclined disc type reciprocating piston oil-free air compressor that waves according to claim 1, it is characterized in that: described sealed skirt includes wave structure.
3. a kind of inclined disc type reciprocating piston oil-free air compressor that waves according to claim 2, is characterized in that: the layout that the peak value of each crest of the wave structure of described sealed skirt is increase gradually or gradually dwindles.
4. a kind of inclined disc type reciprocating piston oil-free air compressor that waves according to claim 3, it is characterized in that: the wave structure of described sealed skirt is the concentric circle layout, and the crest peak value of larger its ripple of distribution radius is larger.
5. the inclined disc type reciprocating piston oil-free air compressor that waves of any one described according to claim 1 to 4 is characterized in that: join in described shaft seal and be lined with fibre cloth.
6. the inclined disc type reciprocating piston oil-free air compressor that waves of any one described according to claim 1 to 4 is characterized in that: described connecting rod and piston adopt and are fastenedly connected or are integrated making.
7. the inclined disc type reciprocating piston oil-free air compressor that waves of any one described according to claim 1 to 4, is characterized in that: be fitted with the seal ring that self-enrichment material is made on described piston.
8. the inclined disc type reciprocating piston oil-free air compressor that waves of any one described according to claim 1 to 4, is characterized in that: be fitted with the anti-turn spring that prevents that connecting rod from rotating between described connecting rod and swash plate.
9. the inclined disc type reciprocating piston oil-free air compressor that waves of any one described according to claim 1 to 4, is characterized in that: be provided with the stop pin and the anti-rotation groove that prevent the connecting rod rotation.
10. the inclined disc type reciprocating piston oil-free air compressor that waves of any one described according to claim 1 to 4, is characterized in that: the shaft-driven overhead cooling fan of the power of the useful compressor of compressor configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694561 CN202971084U (en) | 2012-12-14 | 2012-12-14 | Inclined plate type sway reciprocating piston oil-less air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694561 CN202971084U (en) | 2012-12-14 | 2012-12-14 | Inclined plate type sway reciprocating piston oil-less air compressor |
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| Publication Number | Publication Date |
|---|---|
| CN202971084U true CN202971084U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220694561 Withdrawn - After Issue CN202971084U (en) | 2012-12-14 | 2012-12-14 | Inclined plate type sway reciprocating piston oil-less air compressor |
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| CN (1) | CN202971084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016298A (en) * | 2012-12-14 | 2013-04-03 | 浙江鸿友压缩机制造有限公司 | Swash-plate oscillating reciprocating-piston oilless air compressor |
-
2012
- 2012-12-14 CN CN 201220694561 patent/CN202971084U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016298A (en) * | 2012-12-14 | 2013-04-03 | 浙江鸿友压缩机制造有限公司 | Swash-plate oscillating reciprocating-piston oilless air compressor |
| CN103016298B (en) * | 2012-12-14 | 2016-05-18 | 浙江鸿友压缩机制造有限公司 | The inclined disc type reciprocating-piston oil-free air compressor that waves |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20160518 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |