CN203321773U - Oblique-shaft oil-free compressor - Google Patents
Oblique-shaft oil-free compressor Download PDFInfo
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- CN203321773U CN203321773U CN2013203481697U CN201320348169U CN203321773U CN 203321773 U CN203321773 U CN 203321773U CN 2013203481697 U CN2013203481697 U CN 2013203481697U CN 201320348169 U CN201320348169 U CN 201320348169U CN 203321773 U CN203321773 U CN 203321773U
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Abstract
The utility model belongs to the technical field of compressors and discloses an oblique-shaft oil-free compressor, comprising a cylinder, a piston, a connection rod, a shaft box, a driving shaft and a swing disc, wherein the swing disc is driven by the structures of the driving shaft and an oblique shaft, so the connection rod and the piston are driven to perform reciprocation; a rotating limiting mechanism comprising a swing disc pin, a rocker arm and a shaft box pin is adopted to limit the rotary angle of the swing disc around the axis of the driving shaft; due to the structure that the swing disc is rotatably sleeved on the oblique shaft, lubricant oil can be packed or an oil-containing bearing structure can be adopted conveniently between the swing disc and the oblique shaft; as all motion matching pairs of the rotating limiting mechanism are connected by a rotary structure, so the oil-containing bearing structure can be adopted; the shaft box of the compressor does not need to contain liquid lubricant oil, in other words, the oblique-shaft oil-free compressor eliminates the hidden danger that the lubricant oil is splattered to the wall face of the cylinder, so the oil-free work medium output of the compressor can be reliably realized.
Description
Technical field
The utility model belongs to the Compressor Technology field, relates to a kind of clino-axis type compressor, relates in particular to a kind of inclined shaft mechanism that utilizes and realizes the reciprocating clino-axis type oilless compressor of compressor piston link assembly.
Background technique
Existing oblique tray type compressor has the advantages such as compact structure, dynamic balance performance be good, in various gaseous working medium compression field such as rock gas, air, steam, is widely used.The principle of such compressor is, drive a swash plate by prime mover and carry out the dead axle rotation motion around the rotatingshaft axis, then by swash plate, drive a balance coordinated with it to do oscillating motion, balance forms shift reciprocately also by ball-joint or sliding shoe structure drive link at the axial direction of rotatingshaft, and then reciprocating in cylinder by the connecting rod driven plunger, realize thus the periodically-varied of compressor operating chamber volume.Above-mentioned swash plate directly contacts and drives balance or swash plate indirectly to drive balance by a bearing be in tilted layout with the rotatingshaft axis by a plane tilted with the rotatingshaft axis, balance is restricted its limit rotation mechanism constraint of circumferentially rotating and can not carries out complete circle type and rotate, and therefore can only echo swash plate does oscillating motion.
Although oblique tray type compressor utilizes swash plate/balance combination to realize the to-and-fro motion of piston rod part, but existing oblique tray type compressor is difficult to accomplish without oil output working medium, reason is that such compressor must configure a crankcase that is loaded with the relative closure of liquid lubricant oil, because: the cooperation of swash plate and balance belongs to relative open motion cooperation on the one hand, and the lubricant oil that it needs crankcase to provide and splashes is lubricated it; Limit on the other hand rotation mechanism generally to adopt gear engagement fit pair or sliding pin/chute matching pair to limit the rotation of balance, these limit rotation mechanisms need crankcase to provide the lubricant oil splashed to be lubricated equally.Be unableing to do without liquid lubricant oil and these lubricant oil just because of existing oblique tray type compressor must be contained in crankcase, to such an extent as to these lubricant oil very easily are splashed on the cylinder wall surface of compressor along with the rotation oscillating motion of swash plate/balance when work, finally cause a part of lubricant oil to infilter in the active chamber of compressor and export with together with working medium after compression, that is the working medium of output is often containing the lubricant oil of Chuck Steak.
Summary of the invention
Be difficult to export the not defect of oil-containing working medium for existing oblique tray type compressor, the utility model provides a kind of clino-axis type oilless compressor, and purpose is to realize reliably exporting without oily working medium of compressor.
The purpose of this utility model is achieved like this: the clino-axis type oilless compressor, it includes cylinder, piston, connecting rod, axle box, live axle and balance, described connecting rod and balance adopt the ball-joint structure to interconnect rotationally, connecting rod is subject to the driving of balance and moves, the connecting rod driven plunger also impels the piston generation that the to-and-fro motion with respect to cylinder is arranged, it is characterized in that: be provided with an inclined shaft on live axle, the axis of described inclined shaft and the non-parallel setting of the axis of live axle; Balance is sleeved on inclined shaft rotationally by least one rolling bearing and at least one thrust bearing, and balance is subject to the driving of live axle and moves; Limited rotation mechanism is set between balance and axle box, described limit rotation mechanism includes balance pin, rocking arm and axle box pin, one end and the rocking arm of described balance pin connects, the other end and the balance of balance pin connect, one end and the rocking arm of described axle box pin connects, the other end and the axle box of axle box pin connect, and rocking arm can rotate around the axis of axle box pin, balance can rotate around the axis of balance pin.
The axis of above-mentioned inclined shaft and the axes intersect of live axle.
The axis of the axis of above-mentioned inclined shaft, the axis of live axle, balance pin, the axis of axle box pin intersect at a common point.
The axial end of above-mentioned inclined shaft is provided with the shaft seal be sealed and matched with balance.
In above-mentioned rolling bearing, have at least one to be oil-impregnated bearing the end that is arranged in inclined shaft.
Above-mentioned balance pin is or/and dispose the second rolling bearing on the axle box pin, described the second rolling bearing is oil-impregnated bearing.
Above-mentioned live axle is or/and be provided with the first cooling fan on inclined shaft.
Above-mentioned piston and connecting rod are fastenedly connected and are structure as a whole, and dispose the seal ring that self-enrichment material is made on piston.
Be provided with projecting shaft on above-mentioned inclined shaft, the axis of described projecting shaft and the axis coaxle of live axle.
Above-mentioned projecting shaft leans out outside the cylinder head of compressor, and is provided with the second cooling fan at an end that leans out cylinder head.
The utility model clino-axis type oilless compressor, adopt inclined shaft to drive the drive manner of balance and then balance drive link and piston, finally makes piston form the to-and-fro motion with respect to cylinder; , can encapsulate easily lubricant oil or adopt oil-bearing structure between balance and inclined shaft for being sleeved on rotationally the structure on inclined shaft due to balance, the limit rotation mechanism of compressor also adopts turntable to connect in addition, also can adopt oil-bearing structure; Therefore the axle box of compressor is without the lubricant oil of splendid attire liquid state, in other words the utility model has been eliminated the hidden danger of lubricating oil splash to cylinder wall surface, therefore can realize reliably exporting without oily working medium of compressor.
The accompanying drawing explanation
Fig. 1 is an embodiment's of the utility model clino-axis type compressor sectional view;
Fig. 2 is an embodiment's of the utility model clino-axis type compressor axonometric drawing;
Fig. 3 is the exploded perspective view of the utility model clino-axis type compressor limit rotation mechanism;
Fig. 4 is the structural representation that the utility model clino-axis type compressor includes bulb universal connection structure rocking arm type limit rotation mechanism.
Embodiment
Below with specific embodiment, the utility model is further described, referring to Fig. 1-4:
The clino-axis type oilless compressor, include cylinder 1, piston 2, connecting rod 3, axle box 4, live axle 5 and balance 6, described connecting rod 3 adopts ball-joint structure 7 to interconnect rotationally with balance 6, connecting rod 3 is subject to the driving of balance 6 and moves, and connecting rod 3 driven plunger 2 also impel piston 2 generations that the to-and-fro motion with respect to cylinder 1 is arranged, characteristic of the present utility model is: be provided with an inclined shaft 8 on live axle 5, the axes O 2 of described inclined shaft 8 and the non-parallel setting of axes O 1 (referring to Fig. 3) of live axle 5, balance 6 is sleeved on (referring to Fig. 1) on inclined shaft 8 rotationally by least one rolling bearing 9a and at least one thrust bearing 10, and balance 6 is subject to the driving of live axle 5 and moves, between balance 6 and axle box 4, limited rotation mechanism is set, described limit rotation mechanism includes balance pin 11, rocking arm 12 and axle box pin 13, one end and the rocking arm 12 of described balance pin 11 connects, the other end and the balance 6 of balance pin 11 connect, one end and the rocking arm 12 of described axle box pin 13 connects, the other end and the axle box 4 of axle box pin 13 connect, and rocking arm 12 can rotate around the axes O 3 of axle box pin 13, balance 6 can rotate (referring to Fig. 3) around the axes O 4 of balance pin 11, it should be noted that, being provided with an inclined shaft 8 on the said live axle 5 of the utility model comprises: 1) inclined shaft 8 and live axle 5 makings that be structure as a whole, 2) be fastenedly connected and be structure as a whole by welding, drive fit, rivet or be threaded etc. mode and live axle 5 after the independent making of inclined shaft 8, in addition, it should be noted that, in the utility model, said balance pin 11 connects with rocking arm 12, and balance pin 11 connects with balance 6, can be connecting of following situation: 1) balance pin 11 be fastenedly connected with rocking arm 12 or the making that is structure as a whole of balance pin 11 and rocking arm 6, balance pin 11 is rotationally connected with balance 6 simultaneously, 2) balance pin 11 is fastenedly connected with balance 6 or the making that is structure as a whole of balance pin 11 and balance 6, balance pin 11 is rotationally connected with rocking arm 12 simultaneously, 3) balance pin 11 is rotationally connected with rocking arm 12, balance pin 11 also is rotationally connected with balance 6 simultaneously, 4) balance pin 11 and universal connection of rocking arm 12 bulbs, simultaneously balance pin 11 is fastenedly connected with balance 6 or the making that is structure as a whole of balance pin 11 and balance 6, 5) balance pin 11 is fastenedly connected with rocking arm 12 or the making that is structure as a whole of balance pin 11 and rocking arm 12, while balance pin 11 and universal connection of balance 6 bulbs, it should be noted that, in the utility model, the universal connection of said bulb comprises bulb hinged, ball-joint connects, the various linkage structure modes such as ball hole matching pair connection, wherein bulb hinged is to refer to an end of balance pin 11 is made to ball head structure, now the other end of balance pin 11 both can be fastenedly connected with rocking arm 12 (comprising the integrative-structure making), also can slide or/and be rotationally connected with rocking arm 12, especially, balance pin 11 even can also develop into a simple ball head structure, being balance pin 11 shown in Fig. 4 is fastenedly connected (being included as integrative-structure makes) and forms the universal docked mode be connected of bulb with balance 6 with the form of simple ball head structure with rocking arm 12, ball-joint connects and comprises the structure that adopts the joint ball bearing, the matching pair connection of ball hole utilizes ball head structure and pore passage structure to form motion matching pair (not shown), the bulb of now take is joined circular hole as the secondary pairing of optimal movement, because the universal connection of bulb has comprised the situation of rotating and cutting with scissors, in other words belong to or be included in the said balance 6 of the utility model can be in the category that balance pin axis O3 rotates for the universal connection of various bulb recited above, in the utility model, said axle box pin 13 connects with rocking arm 12 and axle box pin 13 connects with axle box 4 in addition, can be also the connecting of situation of getting off: 1) axle box pin 13 with rocking arm 12, be fastenedly connected or axle box pin 13 and rocking arm 12 be structure as a whole makings, axle box pin 13 and axle box 4 are rotationally connected simultaneously, 2) axle box pin 13 with axle box 4, be fastenedly connected or axle box pin 13 and axle box 4 be structure as a whole makings, axle box pin 13 is rotationally connected with rocking arm 12 simultaneously, 3) axle box pin 13 is rotationally connected with rocking arm 12, axle box pin 13 and axle box 4 also are rotationally connected simultaneously, also it should be noted that, the structure of balance 6 can be to comprise the various forms such as disk-like structure, case shape structure, block structure and fork shaft shape structure.
The axes O 2 of the inclined shaft 8 in the utility model both can intersect with the axes O 1 of live axle 5 also can be non-intersect, but from the optimal location angle, the axes O 2 of inclined shaft 8 and axes O 1(or its elongation line of live axle 5) intersect for better, now their intersection point is called fixed point Q(referring to Fig. 3), the position of fixed point Q and the working procedure of compressor are irrelevant and present all the time fixed phenomenon and (allow because of compressor operating running vibration, play or the shake of certain amplitude appears in the fixed point Q that works stress deformation and other a variety of causes and cause), if if such as fixed point Q play or when shake its distance that departs from the perfect condition position be less than 3% of cylinder bore, the utility model will fixed point Q be regarded as and spatially is in fixed state, further, the axes O 4 of the axes O 2 of inclined shaft 8, the axes O 1 of live axle 5, balance pin 11, the axes O 3 of axle box pin 13 can intersect on a common point, this common point is in fact the fixed point Q of clino-axis type compressor, is now best axis layout: balance pin 11 and rocking arm 12 along the shifting amount minimum of axes O 4 directions of balance pin 11 not even play, rocking arm 12 and axle box pin 13 along also minimum play not even of the shifting amount of axle box pin axis O3 direction, it is to be noted, in the utility model, said various axis intersects, be to allow it to have certain margin of error, comprise foozle, assembly error, all kinds of errors that stress deformation and temperature variation produce and the accumulation of these errors, as long as the distance of each relevant axis is less than in the number range of engineering permission, the utility model all is regarded as crossing category, an exemplary is: using the compresser cylinder diameter as the background size, if the wheelbase of certain two axial lines is less than or equal to 3% with the ratio of cylinder bore, the utility model can be regarded as crossing by these two axis.
The axial end of the inclined shaft 8 in the utility model can arrange the shaft seal 14(that is sealed and matched with balance 6 as shown in Figure 1), can seal so a certain amount of lubricant oil or grease locating movingly at inclined shaft 8 and balance 6 up for safekeeping; In addition, the rolling bearing 9a that is arranged in inclined shaft 8 ends can be set to oil-impregnated bearing; Further, at balance pin 11 or/and also can dispose the second rolling bearing 9b(on axle box pin 13 referring to Fig. 2), described the second rolling bearing 9b is that oil-impregnated bearing is better; It should be noted that, in the utility model, said oil-impregnated bearing had both comprised oil-impregnated bearing that the porous material such as traditional powder metallurgy makes, and had also comprised and carry capping and from the common rolling bearing that carries lubricant grease; After adopting above-mentioned the setting, axle box 4 can be made into and exempt from the oil box structure, even axle box 4 can be made to open case construction.
In the utility model, because axle box 4 can be the oil box of exempting from of the liquid lubricant oil of splendid attire not, therefore can make open case construction, in order to improve the functional reliability of compressor, can the first cooling fan 15(be set on live axle 5 or inclined shaft 8 as depicted in figs. 1 and 2), the forced draft produced by cooling fan 15, can effective cooling balance 6, the core component of the compressors such as ball-joint structure 7 and limit rotation mechanism.
Connecting rod 3 in the utility model can be fastenedly connected with piston 2 be structure as a whole (as depicted in figs. 1 and 2), can reduce like this assembling difficulty of compressor piston link assembly; It should be noted that, in the utility model, said connecting rod 3 is fastenedly connected to be structure as a whole with piston 2 and comprises: makings that be structure as a whole of connecting rod 3 and piston 2, or piston 2 and connecting rod 3 are fastenedly connected and are structure as a whole by modes such as screw thread, riveted joint, welding, interference fit again after for the making of split part; If now seal ring adopts self-enrichment material to make, such as the filling teflon etc., the lubricant oil that can also not rely in axle box 2 are lubricated it, and in other words axle box 2 can be made and exempt from oil box structure and open housing structure.
The utility model is in order to increase the rigidity of support of inclined shaft 8, can projecting shaft 16(be set on inclined shaft 8 as shown in Figure 1), the axes O 1 of the axis of described projecting shaft 16 and live axle 5 coaxially arranges, and inclined shaft 8 can be avoided cantilever structure like this, so rigidity is strengthened.
The utility model, for the cylinder head 17 of cooling compressor better, can lean out projecting shaft 16 outside the cylinder head 17 of compressor, and at an end that leans out cylinder head 17, the second cooling fan (not shown) is set.
The utility model clino-axis type oilless compressor, by adopting inclined shaft 8 to drive balances 6 and then by the drive manner of balance 6 drive link 3 and piston 2, the to-and-fro motion that finally makes piston 2 form with respect to cylinder 1, thereby the periodically-varied of the chamber volume of finishing the work; Because balance 6 is to be sleeved on rotationally the structure on inclined shaft 8, can encapsulate easily lubricant oil or adopt oil-bearing structure between balance 6 and inclined shaft 8, the limit rotation mechanism of compressor also adopts turntable to connect in addition, also can conveniently adopt oil-bearing structure; Therefore the axle box of compressor is without the lubricant oil of splendid attire liquid state, in other words the utility model has been eliminated the hidden danger of lubricating oil splash to cylinder wall surface, therefore can realize reliably exporting without oily working medium of compressor.
Above-described embodiment is only some preferred embodiments of the present utility model; not 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. clino-axis type oilless compressor, it includes cylinder, piston, connecting rod, axle box, live axle and balance, described connecting rod and balance adopt the ball-joint structure to interconnect rotationally, connecting rod is subject to the driving of balance and moves, the connecting rod driven plunger also impels the piston generation that the to-and-fro motion with respect to cylinder is arranged, it is characterized in that: be provided with an inclined shaft on live axle, the axis of described inclined shaft and the non-parallel setting of the axis of live axle; Balance is sleeved on inclined shaft rotationally by least one rolling bearing and at least one thrust bearing, and balance is subject to the driving of live axle and moves; Limited rotation mechanism is set between balance and axle box, described limit rotation mechanism includes balance pin, rocking arm and axle box pin, one end and the rocking arm of described balance pin connects, the other end and the balance of balance pin connect, one end and the rocking arm of described axle box pin connects, the other end and the axle box of axle box pin connect, and rocking arm can rotate around the axis of axle box pin, balance can rotate around the axis of balance pin.
2. clino-axis type oilless compressor according to claim 1, is characterized in that: the axis of described inclined shaft and the axes intersect of live axle.
3. clino-axis type oilless compressor according to claim 2, it is characterized in that: the axis of the axis of described inclined shaft, the axis of live axle, balance pin, the axis of axle box pin intersect at a common point.
4. clino-axis type oilless compressor according to claim 3, it is characterized in that: the axial end of described inclined shaft is provided with the shaft seal be sealed and matched with balance.
5. according to the described clino-axis type oilless compressor of claim 1 to 4 any one, it is characterized in that: in described rolling bearing, have at least one to be oil-impregnated bearing the end that is arranged in inclined shaft.
6. according to the described clino-axis type oilless compressor of claim 1 to 4 any one, it is characterized in that: described balance pin is or/and dispose the second rolling bearing on the axle box pin, described the second rolling bearing is oil-impregnated bearing.
7. according to the described clino-axis type oilless compressor of claim 1 to 4 any one, it is characterized in that: at live axle or/and be provided with the first cooling fan on inclined shaft.
8. according to the described clino-axis type oilless compressor of claim 1 to 4 any one, it is characterized in that: described piston and connecting rod are fastenedly connected and are structure as a whole, and dispose the seal ring that self-enrichment material is made on piston.
9. according to the described clino-axis type oilless compressor of claim 1 to 4 any one, it is characterized in that: be provided with projecting shaft on described inclined shaft, the axis of described projecting shaft and the axis coaxle of live axle.
10. clino-axis type oilless compressor according to claim 9, it is characterized in that: described projecting shaft leans out outside the cylinder head of compressor, and is provided with the second cooling fan at an end that leans out cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203481697U CN203321773U (en) | 2013-06-15 | 2013-06-15 | Oblique-shaft oil-free compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203481697U CN203321773U (en) | 2013-06-15 | 2013-06-15 | Oblique-shaft oil-free compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321773U true CN203321773U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203481697U Withdrawn - After Issue CN203321773U (en) | 2013-06-15 | 2013-06-15 | Oblique-shaft oil-free compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321773U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291581A (en) * | 2013-06-15 | 2013-09-11 | 浙江鸿友压缩机制造有限公司 | Oblique-shaft type oilless compressor |
| CN113404661A (en) * | 2021-06-23 | 2021-09-17 | 无锡路程科技有限公司 | Air supply device of combustor |
-
2013
- 2013-06-15 CN CN2013203481697U patent/CN203321773U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291581A (en) * | 2013-06-15 | 2013-09-11 | 浙江鸿友压缩机制造有限公司 | Oblique-shaft type oilless compressor |
| CN103291581B (en) * | 2013-06-15 | 2015-06-10 | 浙江鸿友压缩机制造有限公司 | Oblique-shaft type oilless compressor |
| CN113404661A (en) * | 2021-06-23 | 2021-09-17 | 无锡路程科技有限公司 | Air supply device of combustor |
| CN113404661B (en) * | 2021-06-23 | 2022-11-04 | 无锡路程科技有限公司 | Air supply device of combustor |
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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: 20131204 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |