CN203925924U - Two-way shaking tray compressor - Google Patents
Two-way shaking tray compressor Download PDFInfo
- Publication number
- CN203925924U CN203925924U CN201420261509.7U CN201420261509U CN203925924U CN 203925924 U CN203925924 U CN 203925924U CN 201420261509 U CN201420261509 U CN 201420261509U CN 203925924 U CN203925924 U CN 203925924U
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- China
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- bearing unit
- shaking tray
- bidirectional piston
- live axle
- inner ring
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Abstract
The utility model discloses a kind of two-way shaking tray compressor, comprising: cylinder body; The bidirectional piston that can move back and forth in this cylinder body cylinder hole; Drive the live axle of this bidirectional piston; This two-way shaking tray compressor also comprises bearing unit, this bearing unit comprises a plurality of contact balls and contacts with the plurality of inner ring and the outer ring that ball matches, and this bearing unit has an angled central plane of vertical plane with this live axle, wherein, described propeller shaft sleeve is located in the inner ring of this bearing unit, and fixes with this inner ring; The outer ring of described bearing unit and this bidirectional piston are connected, and when live axle rotates, order about this bidirectional piston move back and forth by this bearing unit.Two-way shaking tray compressor design of the present utility model is compact, and can significantly reduce friction loss.
Description
Technical field
The utility model relates to a kind of shaking tray compressor with bidirectional piston.
Background technique
Traditional compressor comprises slant plate type compressor.Conventionally, oblique tray type compressor comprises a live axle, a swash plate linking together with live axle and the some pistons that are connected with this swash plate operation.When driver element orders about drive shaft turns in known manner, swash plate will impel each piston in cylinder to produce to-and-fro motion.
For example, the patent No. is that 5,009,574 U. S. Patent discloses a kind of traditional slant plate type compressor, and in this structure, swash plate is integrated on live axle regularly, thereby swash plate is rotated together with live axle.That is to say, swash plate does not rotate with respect to live axle.At traditional slant plate type compressor run duration, piston is carried out to-and-fro motion simply.In this structure, also comprise that swash plate orders about the crawler shoe of reciprocating motion of the pistons by it.Because swash plate rotates together with live axle, this causes high-speed slide motion between each crawler shoe and swash plate.
High-speed slide movement characteristic in slant plate type compressor between crawler shoe and swash plate can cause high frictional loss and low bearing capacity, and especially, in large capacity compressors, situation is even more serious.Therefore, as the improvement of slant plate type compressor, shaking tray compressor of the prior art is separated the motion of swash plate and live axle, to attempt to reduce above-mentioned frictional loss.
For example, U. S. Patent 2,335,415 disclose a kind of shaking tray compressor arrangement, and in this structure, shaking tray is connected on the wheel hub of live axle by an anti-friction bearing, thereby make shaking tray carry out oscillating motion and with live axle, do not rotate, that is to say, between shaking tray and crawler shoe, only have slight sliding movement, the sliding friction with high-speed motion between traditional swash plate and crawler shoe is replaced by the rolling friction of bearing.But, although this structure has reduced frictional loss, compact not, lack industrial applicibility.
U. S. Patent 5,239,913 disclose another kind of typical shaking tray compressor arrangement.In this structure, power from piston head, by connecting rod and shaking tray, point to bearing, for the compressor that uses single acting piston, this swaying tray structure is conventional available, still, and for the compressor that needs the larger discharge capacity of bidirectional piston, this structure is obviously improper, because do not have enough spaces, at same position, bearing and connecting rod are installed completely.
In addition,, in this structure and similar structure, shaking tray is connected with each piston by piston rod.Therefore in the prior art, need in essence a shaking tray stopper to stop the rotation of shaking tray, this causes compressor arrangement complicated, will cause inhomogeneous or unbalanced complex rotation mode, and then produces vibration and noise.
Therefore, need a kind of new shaking tray compressor arrangement, when guaranteeing its Applicable scope, can reduce frictional loss, improve energy conversion efficiency, overcome the problems referred to above in existing swaying tray structure simultaneously.
Model utility content
The purpose of this utility model, is to overcome the above-mentioned shortcoming of existing shaking tray compressor arrangement, thereby the new shaking tray compressor arrangement that a kind of frictional loss is low, can improve energy transformation ratio is provided.
For achieving the above object, two-way shaking tray compressor of the present utility model, comprising:
Cylinder body, this cylinder body has cylinder hole;
The bidirectional piston that can move back and forth in this cylinder body cylinder hole;
Drive the live axle of this bidirectional piston;
Especially, this two-way shaking tray compressor also comprises bearing unit, and this bearing unit comprises a plurality of contact balls and contact with the plurality of inner ring and the outer ring that ball matches, and this bearing unit has an angled central plane of vertical plane with this live axle, wherein
Described propeller shaft sleeve is located in the inner ring of this bearing unit, and fixes with this inner ring;
The outer ring of described bearing unit and this bidirectional piston are connected, and when live axle rotates, order about this bidirectional piston move back and forth by this bearing unit.
Preferably, described bearing unit is double-row angular contact bal bearing unit.
Preferably, the bearing contact angle of described bearing unit is greater than 45 °.
Preferably, described outer ring comprises joining end, and described joining end comprises the first peripheral part and the second peripheral part; Described bidirectional piston comprises two nest portions, is respectively provided with two Hemisphericl shoes that the first peripheral part and the second peripheral part with described joining end act on mutually in these two nest portions.
Alternatively, described outer ring is fixedly connected with drive pin; The described bidirectional piston therein heart offers cylindrical hole, and the axis of this cylindrical hole is vertical with the axis of this bidirectional piston and crossing, and this cylindrical hole is provided with the notch matching with drive pin; And, in this cylindrical hole, being provided with wrist pin, this wrist pin has cross hole, and this wrist pin inserts in this cross hole through this notch.Described inner ring is fastened by nut and described live axle.
Shaking tray compressor of the present utility model is with respect to prior art, and compact structure, relates to complexity low, raise the efficiency with output power in, therefore cost can be successfully controlled, is suitable for the application of business compressor.
Accompanying drawing explanation
Fig. 1 is two-way shaking tray compressor of the present utility model sectional view in one embodiment;
Fig. 2 is the local enlarged diagram of mode of execution in Fig. 1;
Fig. 3 is another local enlarged diagram of mode of execution in Fig. 1;
Fig. 4 is two-way shaking tray compressor of the present utility model sectional view in another embodiment;
Fig. 5 is the sectional view of two-way shaking tray compressor of the present utility model in the 3rd mode of execution;
Fig. 6 is the partial elevation view of cutting open along B-B line in Fig. 5.
Embodiment
Below with reference to embodiment and respective drawings, structure composition and the working principle of two-way shaking tray compressor of the present utility model are elaborated.
In general, aspect one of the present utility model, this two-way shaking tray compressor adopts bidirectional piston structure, and it utilizes shaking tray to drive the to-and-fro motion of bidirectional piston, and the motion of shaking tray is ordered about by the rotor being fixed on live axle.Feature of the present utility model is especially the fit system of shaking tray and rotor.Thereby can match and form combination bearing unit by bearing between shaking tray and rotor, be that shaking tray is except doing exercises as driving bidirectional piston, also can directly be used as the outer ring of combination bearing unit, the rotor being arranged on live axle drives shaking tray to do oscillating motion except being used as, and is also directly used as the inner ring of combination bearing unit.Can make be thus the combined rolling motion of bearing unit of the high-speed slide motion of traditional slant plate type compressor replace, simultaneously, shaking tray compressor of the present utility model is with respect to prior art, compact structure, relate to complexity low, raise the efficiency with output power in, therefore cost can be successfully controlled, is suitable for the application of business compressor.
Of the present utility model aspect another, bearing unit can be directly as the driving mechanism of two-way shaking tray compressor, the outer ring of this bearing unit can be used as the shaking tray of compressor itself, the inner ring of this bearing unit can be used as the rotor of compressor itself, thus, when reducing frictional loss, also can realize the compact designed of whole compressor arrangement, and reduce cost.
Particularly, as shown in Figure 1, be two-way shaking tray compressor of the present utility model schematic diagram in one embodiment.
With reference to accompanying drawing, in this embodiment, two-way shaking tray compressor comprises cylinder body 100, and cylinder body has several cylinder holes 110.Routinely, cylinder body 100 is comprised of front-bank rotor housing 120 and rear-bank rotor housing 130, and comprises a pair of center hole 140 along cylinder body longitudinal axis O-O, and cylinder hole 110 is evenly arranged around center hole 140.
Two-way shaking tray compressor also comprises several bidirectional pistons 200 that can move back and forth in the cylinder hole 110 of cylinder body 100.Bidirectional piston 200 to-and-fro motion are in the related cylinder hole 110 of front-bank rotor housing 120 and rear-bank rotor housing 130.
Two-way shaking tray compressor further comprises the driven unit 300 that drives bidirectional piston 200, driven unit 300 comprises live axle 310, the rotor 320 being fixedly connected with live axle 310 and the ring-type shaking tray 330 matching with rotor 320, separately with reference to Fig. 2,3, rotor 320 has a central plane P-P with the angled α of vertical plane I-I of live axle 310, the central plane P-P of the central plane of shaking tray 330 and rotor 320 coincides, during live axle 310 rotation, rotor 320 orders about bidirectional piston 200 by shaking tray 330 and moves back and forth.
Routinely, live axle 310 is rotatably placed in the center hole 140 of front-bank rotor housing 120 and rear-bank rotor housing 130, and can drive rotation by external motivating force.Rotor 320 is permanently connected and is integrated on live axle 310, therefore can rotate with the rotation of live axle 310.Separately, in conjunction with Fig. 2,3, rotor 320 can be comprised of the first collar flange 321 and the second collar flange 322 routinely.The first collar flange 321 can be fixed on the boss 311 of live axle 310, similarly, the second collar flange 322 can fix with mating face 3212 and the live axle 310 of the first collar flange 321, and the first collar flange 321, the second collar flange 322 are fastened by nut 312 and live axle 310, realize being thus fixedly connected with of rotor 320 and live axle 310.Certainly, in mode of execution of the present utility model, also can take other known manner to realize being fixedly connected with of rotor 320 and live axle 310.
As mentioned above, the central plane P-P of rotor 320 and the vertical plane I-I of live axle 310 form angle α.Length of stroke when this angle has determined bidirectional piston 200 to-and-fro motion.
Especially, in conjunction with Fig. 2,3, rotor 320 has the internal surface 323 for matching with shaking tray 330, and in this embodiment, two internal surfaces 323 are arranged between the first collar flange 321 and the second collar flange 322.Internal surface 323 comprises the first internal surface 324, the second internal surface 325 and the rotor surface of contact 326 between the first internal surface 324 and the second internal surface 325 being oppositely arranged.
Shaking tray 330 is partly around being arranged in the internal surface 323 of rotor 320, and comprises the first adjoining with the first internal surface 324 respectively peripheral part 334, and adjoining and relative with the first peripheral part 334 the second peripheral part 335 of the second internal surface 325 and and rotor 320 surface of contact are adjoining and the shaking tray surface of contact 336 between the first peripheral part 334 and the second peripheral part 335.
As notable feature of the present utility model, between the first internal surface 324 and the first peripheral part 334, be provided with clutch shaft bearing 340, between the second internal surface 325 and the second peripheral part 335, be provided with the second bearing 350, and be provided with the 3rd bearing 360 between rotor surface of contact 326 and shaking tray surface of contact 336.
As shown in Figure 1, 2, 3, in mode of execution of the present utility model, clutch shaft bearing 340 directly acts on the first internal surface 324 and the first peripheral part 334, the second bearing 350 directly acts on the second internal surface 325 and the second peripheral part 335, and the 3rd bearing 360 directly acts on and rotor surface of contact 326 and shaking tray surface of contact 336.That is to say, for clutch shaft bearing 340, its outer ring contact surface 341 coincides with the first peripheral part 334 of shaking tray 330, and the first internal surface 324 of its inner ring contact surface and rotor 320 internal surfaces 323 coincides; For the second bearing 350, its outer ring contact surface 351 coincides with the second peripheral part 335 of shaking tray 330, and the second internal surface 325 of its inner ring contact surface and rotor 320 internal surfaces 323 coincides; For the 3rd bearing 360, the shaking tray surface of contact 336 of its outer ring contact surface and shaking tray 330 coincides, and the rotor surface of contact 326 of its inner ring contact surface and rotor 320 internal surfaces 323 coincides.
With reference to Fig. 1,2,3, aspect the cooperation driving of shaking tray 330 and bidirectional piston 200, can adopt traditional crawler shoe cooperating structure.Particularly, bidirectional piston 200 comprises a plurality of nest portion 210, half spherical-concave-surface of nest portion 210 for offering respectively on notch 220 front and rear walls 221 at the axial direction A-A of bidirectional piston 200 and the middle part of bidirectional piston 200.Further, in nest portion 210, be respectively provided with two hemispheric crawler shoes 230 that the first peripheral part 334 and the second peripheral part 335 with shaking tray 330 act on mutually.Routinely, the planar section of hemispheric crawler shoe 230 is defined as flat portion 231, and protuberate is partly defined as protuberance 232, and crawler shoe 230 can serve as trunnion bearing parts between the peripheral part of shaking tray 330 and the nest portion 210 of bidirectional piston 200.Therefore,, by nest portion 210 and hemispheric crawler shoe 230, can make shaking tray 330 globular hinges to bidirectional piston 200.
Certainly, easily understand, shaking tray 330 also can drive bidirectional piston 200 to move reciprocatingly by the cooperation means of other routine, for example, by pin structure, realize being connected of shaking tray 330 and bidirectional piston 200.
Thus, between the peripheral part of shaking tray 330 is slidably by two flat portions of a pair of crawler shoe 230 and when crawler shoe 230 is arranged between bidirectional piston 200 and shaking tray 330, a universal bearing structure of the common composition of peripheral part of bidirectional piston 200, crawler shoe 230 and shaking tray 330, in present embodiment, this universal bearing structure is crawler shoe gimbal structure.
In the mode of execution shown in Fig. 1 to Fig. 3, when the live axle 310 of shaking tray compressor rotates, rotor 320 will rotate with the rotation of live axle 310, effect due to clutch shaft bearing 340, the second bearing 350 and the 3rd bearing 360, shaking tray 330 produces swing movement but with the rotation of live axle, does not rotate, effect due to crawler shoe universal joint, the flat portion of crawler shoe 230 and the peripheral part of shaking tray 330 are moved up and down in diametric(al) mutually with respect to shaking tray 330, and bidirectional piston 200 is front-rear reciprocation movement under the constraint in the interior respective cylinder of cylinder body 100 hole.Due to the rotation of shaking tray 330 be there is no to constraint, so when live axle 310 rotation, shaking tray 330 also may be under the frictional force effect of clutch shaft bearing 340, the second bearing 350 and the 3rd bearing 360 with the rotation of live axle 310 slow circumvolve disproportionately, this rotation will greatly reduce the peripheral part of shaking tray 330 and the wearing and tearing on the flat portion of crawler shoe 230 surface.
Further, with reference to Fig. 2,3, one is delivered to clutch shaft bearing 340 and the second bearing 350 from bidirectional piston 200 the power F1 that is applied on crawler shoe 230 by shaking tray 330, but the force bearing point of F1 drops on outside the inner ring contact surface of clutch shaft bearing 340 and the second bearing 350.For preventing this from occurring, a power F2 who points to clutch shaft bearing 340 and the second bearing 350 centers applies on it by tightening in advance of nut 312, thereby size, direction and the force bearing point of the F that makes a concerted effort of F1 and F2 are changed.This can optimally meet the design and use requirement of bearing, and can greatly extend the life-span of bearing.
As shown in Figure 4, be the schematic diagram of another mode of execution of two-way shaking tray compressor of the present utility model.In this kind of mode of execution, similarly, this kind of two-way shaking tray compressor also comprises cylinder body (scheming not shown), and this cylinder body has cylinder hole; And comprise the bidirectional piston (scheming not shown) that can move back and forth and drive the live axle 310 of this bidirectional piston in this cylinder body cylinder hole.
Especially, in the mode of execution shown in Fig. 4, this two-way shaking tray compressor also comprises bearing unit 600, bearing unit 600 comprises a plurality of contact balls 610 and contacts with the plurality of inner ring 620 and the outer ring 630 that ball 610 matches, and bearing unit 600 has an angled central plane P '-P ' of vertical plane O-O with live axle 310, wherein, live axle 310 is sheathed in the inner ring 620 of bearing unit 600, and fixes with inner ring 620; Outer ring 630 and the bidirectional piston of bearing unit 600 are connected, and when live axle 310 rotation, order about bidirectional piston move back and forth by bearing unit 600.Be similar to above-mentioned mode of execution, inner ring 620 can fix by nut and live axle 310.
In fact, compare with aforementioned embodiments, the inner ring 620 of bearing unit 600 has the function of the rotor in above-mentioned mode of execution simultaneously, and the outer ring 630 of bearing unit 600 can have the function of the shaking tray in above-mentioned mode of execution simultaneously.So the compact structure of the two-way shaking tray compressor in this mode of execution, is suitable for the application of business high-power compressor.
In this embodiment, bearing unit 600 is double-row angular contact bal bearing cell type.And preferably, the bearing contact angle α ' of bearing unit 600 is greater than 45 °.
Preferably, the mode that the outer ring 630 of bearing unit 600 and bidirectional piston connect, can adopt above-mentioned slidnig track type to connect.Particularly, continue with reference to Fig. 4, outer ring 630 comprises joining end 631, and joining end 631 comprises the first peripheral part 6311 and the second peripheral part 6322; Accordingly, bidirectional piston (scheming not shown) comprises two nest portions, is respectively provided with two Hemisphericl shoes that the first peripheral part 6311 and the second peripheral part 6322 with joining end 631 act on mutually in these two nest portions.
In addition, as shown in Figure 5,6, the outer ring 630 of bearing unit 600 and bidirectional piston 200 also can connect by pin formula.Particularly, the outer ring 630 of bearing unit 600 is fixedly connected with drive pin 640; The bidirectional piston 200 therein heart offers cylindrical hole 260, and the axis of this cylindrical hole 260 is vertical and crossing with the axis of bidirectional piston 200, and cylindrical hole 260 is provided with the notch 270 matching with drive pin 640; Further, be provided with wrist pin 280 in cylindrical hole 260, wrist pin 280 has cross hole 281, and wrist pin 280 inserts in cross hole 281 through notch 270.Thus, bidirectional piston 200, wrist pin 280 form pin gimbal structure together with drive pin 640.
Easily understand, the utility model is not limited to the concrete example that above-mentioned mode of execution provides, and for example, above-mentioned crawler shoe gimbal structure and pin gimbal structure all can phase trans-substitutions.In these embodiments, any permutation and combination and apparent modification, all should fall in protection domain of the present utility model.
Claims (6)
1. a two-way shaking tray compressor, comprising:
Cylinder body, this cylinder body has cylinder hole;
The bidirectional piston that can move back and forth in this cylinder body cylinder hole;
Drive the live axle of this bidirectional piston; It is characterized in that:
This two-way shaking tray compressor also comprises bearing unit, and this bearing unit comprises a plurality of contact balls and contact with the plurality of inner ring and the outer ring that ball matches, and this bearing unit has an angled central plane of vertical plane with this live axle, wherein,
Described propeller shaft sleeve is located in the inner ring of this bearing unit, and fixes with this inner ring;
The outer ring of described bearing unit and this bidirectional piston are connected, and when live axle rotates, order about this bidirectional piston move back and forth by this bearing unit.
2. two-way shaking tray compressor according to claim 1, is characterized in that, described bearing unit is double-row angular contact bal bearing unit.
3. two-way shaking tray compressor according to claim 2, is characterized in that, the bearing contact angle of described bearing unit is greater than 45 °.
4. two-way shaking tray compressor according to claim 1, is characterized in that,
Described outer ring comprises joining end, and described joining end comprises the first peripheral part and the second peripheral part;
Described bidirectional piston comprises two nest portions, is respectively provided with two Hemisphericl shoes that the first peripheral part and the second peripheral part with described joining end act on mutually in these two nest portions.
5. two-way shaking tray compressor according to claim 1, is characterized in that,
Described outer ring is fixedly connected with drive pin;
The described bidirectional piston therein heart offers cylindrical hole, and the axis of this cylindrical hole is vertical with the axis of this bidirectional piston and crossing, and this cylindrical hole is provided with the notch matching with drive pin; And,
In this cylindrical hole, be provided with wrist pin, this wrist pin has cross hole, and this wrist pin inserts in this cross hole through this notch.
6. two-way shaking tray compressor according to claim 1, is characterized in that, described inner ring is fastened by nut and described live axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261509.7U CN203925924U (en) | 2014-05-21 | 2014-05-21 | Two-way shaking tray compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261509.7U CN203925924U (en) | 2014-05-21 | 2014-05-21 | Two-way shaking tray compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925924U true CN203925924U (en) | 2014-11-05 |
Family
ID=51821744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261509.7U Withdrawn - After Issue CN203925924U (en) | 2014-05-21 | 2014-05-21 | Two-way shaking tray compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203925924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089968A (en) * | 2014-05-21 | 2015-11-25 | 比泽尔制冷技术（中国）有限公司 | Two-way rocking disc compressor |
| CN109863301A (en) * | 2016-07-25 | 2019-06-07 | 开罗股份有限公司 | Wobble plate type compressor and the oxygen concentrator for using it |
-
2014
- 2014-05-21 CN CN201420261509.7U patent/CN203925924U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089968A (en) * | 2014-05-21 | 2015-11-25 | 比泽尔制冷技术（中国）有限公司 | Two-way rocking disc compressor |
| CN109863301A (en) * | 2016-07-25 | 2019-06-07 | 开罗股份有限公司 | Wobble plate type compressor and the oxygen concentrator for using it |
| US11408407B2 (en) | 2016-07-25 | 2022-08-09 | Caire Inc. | Wobble plate compressor and oxygen concentrator using the same |
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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: 20141105 Effective date of abandoning: 20180710 |
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| AV01 | Patent right actively abandoned |