CN204984777U - A piston link assembly and compressor for compressor - Google Patents
A piston link assembly and compressor for compressor Download PDFInfo
- Publication number
- CN204984777U CN204984777U CN201520411453.3U CN201520411453U CN204984777U CN 204984777 U CN204984777 U CN 204984777U CN 201520411453 U CN201520411453 U CN 201520411453U CN 204984777 U CN204984777 U CN 204984777U
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- China
- Prior art keywords
- connecting rod
- piston
- compressor
- outer ring
- inner ring
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Abstract
The utility model discloses a piston link assembly and compressor for compressor, include: a piston, the piston has the mounting hole, the single wire erection and extension device comprises a connecting piece, the connecting piece includes inner circle and outer lane, through sphere normal running fit between inner circle and the outer lane, the outer lane is connected to in the mounting hole, the connecting rod, the connecting rod with the inner circle is connected. According to the utility model discloses a piston link assembly is compact structure, simple to operate not only, reduces wearing and tearing, noise moreover for the compressor.
Description
Technical field
The utility model relates to Compressor Technology field, in particular to a kind of piston rod part for compressor and compressor.
Background technique
In correlation technique, in the chiller plant such as refrigerator, refrigerator, most use sealed mode reciprocating-piston compressor.The piston of reciprocating-piston compressor normally does linear reciprocating motion under the drive of the connecting rod of crank-driven in cylinder, and piston rod part is primarily of piston and connecting rod two-part composition.
In piston rod part in the past.The steel ball of connecting rod and the ball seat of piston pass through mating spherical surfaces.There is following shortcoming in said structure: because the major part of steel ball contacts with the ball seat of piston, and carry out spacing connecting rod steel ball by the extrusion-deformation of ball seat oral area, manufacturing process is complicated, conformity is poor, and extrusion deformation process affects the going slick property of steel ball in piston ball seat, worsen the air horsepower of compressor, reduce the efficiency of compressor.In addition, connecting rod steel ball is encased by piston ball seat entirety, and refrigeration oil is difficult to enter into inside and lubricates, and compressor reliability reduces.
For solving the problem, usually buffering spacer is set between the steel ball and the ball seat of piston of connecting rod, but compressor is when heavy service and hot operation, because of non lubricant oil Cooling and Lubricator, the easy creep of buffering spacer, produces permanent deformation, causes producing gap between steel ball and piston ball seat, exception throw noise, reduces the reliability of compressor.
Model utility content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of compact structure, easy for installation, the piston rod part for compressor that reduces wearing and tearing and noise.
The utility model also proposed a kind of compressor with this piston rod part.
According to the piston rod part for compressor of the utility model first aspect embodiment, comprising: piston, described piston has mounting hole; Link, described link comprises inner ring and outer ring, and described inner ring is coordinated by spherical rotation with between outer ring, and described outer ring is connected in described mounting hole; Connecting rod, described connecting rod is connected with described inner ring.
According to the piston rod part for compressor of the utility model first aspect embodiment not only compact structure, easy for installation, and reduce wearing and tearing, noise.
Preferably, described piston also has the groove being positioned at and being communicated with inside described mounting hole and with described mounting hole, and described groove and described link, described connecting rod limit receiving cavity jointly.
Preferably, described connecting rod has oil leab, and described oil leab communicates with described receiving cavity, and described inner ring is communicated with described receiving cavity with the cooperation place of described outer ring.
Preferably, described connecting rod comprises: connecting rod, and the first end of described connecting rod is connected with described inner ring, and described connecting rod is provided with the first lubrication hole; Bent axle connecting sleeve, second end of described connecting rod is connected with described bent axle connecting sleeve, the second lubrication hole described bent axle connecting sleeve having trepanning and be connected with the trepanning of described bent axle connecting sleeve, described receiving cavity, described first lubrication hole, described second lubrication hole are communicated with successively.
Preferably, the aperture of described first lubrication hole is greater than the aperture of described second lubrication hole.
Preferably, described link is joint shaft bearing.
Preferably, at least part of inwall of described outer ring is provided with self-lubricating layer.
Preferably, described self-lubricating layer is plastic resin layers.
Preferably, described plastic resin layers is polytetrafluoroethylplastic plastic layer or poly-perfluoroalkoxy resin layer.
According to the compressor of the utility model second aspect embodiment, comprise described piston rod part.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the piston rod part for compressor according to the utility model embodiment.
Fig. 2 is the schematic diagram of the piston rod part for compressor according to another embodiment of the utility model.
Reference character:
Piston rod part 100,
Piston 10, mounting hole 11, groove 12, receiving cavity 13,
Link 20, inner ring 21, outer ring 22, self-lubricating layer 23,
Connecting rod 30, oil leab 31, the first lubrication hole 311, second lubrication hole 312, trepanning 313, connecting rod 32, bent axle connecting sleeve 33.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
The piston rod part 100 for compressor of the utility model embodiment is described referring to Fig. 1 and Fig. 2.
The piston rod part 100 for compressor according to the utility model first aspect embodiment comprises: piston 10, link 20, connecting rod 30.Wherein, piston 10 has mounting hole 11, and link 20 comprises inner ring 21 and outer ring 22, is coordinated between inner ring 21 with outer ring 22 by spherical rotation, and outer ring 22 is connected in mounting hole 11, and connecting rod 30 is connected with inner ring 21.
According to the piston rod part 100 for compressor of the utility model first aspect embodiment, inner ring 21 and the connecting rod 30 of link 20 fix and the outer ring 22 of link 20 is fixed in the mounting hole 11 of piston 10, for spherical rotation coordinates between inner ring 21 with outer ring 22, thus, not only compact structure, easy for installation, and connecting rod 30 is when driving piston 10 to move reciprocatingly, certain amounts of rotation can be there is to reduce piston 10 and cylinder, wearing and tearing between connecting rod 30 and bent axle by opposing pistons 10 in connecting rod 30, thus reduce wearing and tearing noise, strengthen the reliability of compressor.
Wherein, mounting hole 11 is formed in the one end towards connecting rod 30 on piston 10, the sidewall of piston 10 coordinates to realize compression to gas and conveying with cylinder slide, one end of connecting rod 30 is fixedly connected with the inner ring 21 of link 20, the other end of connecting rod 30 is connected with crankshaft crank, like this, crankshaft crank eccentric rotary is moved with drive link 30 and the final piston 10 that drives does linear reciprocating motion in cylinder, realizes compression and the conveying of cylinder interior gas.
In a specific embodiment, link 20 is joint shaft bearing.Particularly, inner ring 21 is formed as the inner ring 21 of joint shaft bearing and outer ring 22 is formed as the outer ring 22 of joint shaft bearing, and during installation, connecting rod 30 and inner ring 21 any one mode by welding, riveting, among force fit is connected; Outer ring 22 and mounting hole 11 any one mode by welding, riveting, among force fit is connected.In addition, can also be connected between outer ring 22 with mounting hole 11 by jump ring, jump ring is fixed in mounting hole 11, the outer wall clamping of jump ring and outer ring 22.Thus, link 20 adopts joint shaft bearing, is convenient to assembling, has better interchangeability.
In certain embodiments, piston 10 also has the groove 12 being positioned at and being communicated with inside mounting hole 11 and with mounting hole 11, and groove 12 and link 20, connecting rod 30 limit receiving cavity 13 jointly.Particularly, piston 10 towards connecting rod 30 open at one end and open wide place and there is mounting hole 11 and be positioned at the groove 12 inside mounting hole 11, groove 12 forms ladder surface with the joint of mounting hole 11, the sidewall of outer ring 22 is cylindrical and the sidewall of outer ring 22 coordinates with mounting hole 11, the bottom surface of outer ring 22 is against on ladder surface, and the internal surface of outer ring 22 is arc surface.Correspondingly, the outer surface of inner ring 21 is sphere and is rotatably assorted to form revolute pair with the internal surface of outer ring 22.Wherein, the interior edge face of groove 12, outer ring 22, the inner side of inner ring 21, the inner side of connecting rod 30 limit receiving cavity 13 jointly.Thus, arranging of receiving cavity 13 can avoid inner ring 21 and connecting rod 30 to interfere with groove 12, wear and tear in movement process, make inner ring 21 can in outer ring 22 flexible rotating, there will not be the problem of not working between piston 10 and connecting rod 30 caused due to the extrusion-deformation of piston 10 ball seat in existing structure.
Further, connecting rod 30 has oil leab 31, and oil leab 31 communicates with receiving cavity 13, and inner ring 21 is communicated with receiving cavity 13 with the cooperation place of outer ring 22.Particularly, the outlet of oil leab 31 is relative with groove 12, and inner ring 21 is connected with receiving cavity 13 with the cooperation place of outer ring 22.
Thus, lubricant oil flows in oil leab 31 through bent axle, in piston 10 reciprocatory movement, lubricant oil moves with piston 10, when piston 10 travels forward, lubricant oil also travels forward and flows in receiving cavity 13 under driving force effect, when piston 10 moves backward, fluid also moves backward and pats the inner ring 21 relative with groove 12 under driving force effect, in outer ring 22 and the portion gap between inner ring 21 and outer ring 22, there is certain rotating relative to outer ring 22 in inner ring 21 in the process that piston 10 seesaws, the fluid on surface not relative with outer ring 22 on inner ring 21 turns to relative to inner ring 21 to make the gap location fluid between inner ring 21 and outer ring 22 sufficient in rotation process, and then make the lubrication of inner ring 21 and outer ring 22 more abundant, spherical rotation coordinates more smooth.
In a preferred embodiment, connecting rod 30 comprises: connecting rod 32 and bent axle connecting sleeve 33.Wherein, the first end of connecting rod 32 is connected with inner ring 21, second end of connecting rod 32 is connected with bent axle connecting sleeve 33, connecting rod 32 is provided with the first lubrication hole 311, the second lubrication hole 312 bent axle connecting sleeve 33 having trepanning and be connected with the trepanning 313 of bent axle connecting sleeve 33, receiving cavity 13, first lubrication hole 311, second lubrication hole 312 is communicated with successively.
As shown in Figure 1, the central axis of connecting rod 30 and the central axis of bent axle connecting sleeve 33 orthogonal, connecting rod 30 is connected on the sidewall of bent axle connecting sleeve 33, and connecting rod 30 is provided with the first lubrication hole 311 and the two ends of the through connecting rod 30 of the first lubrication hole 311 that extend vertically; Bent axle is provided with the trepanning 313 extended vertically, and the two ends that the sidewall of bent axle is provided with the second lubrication hole 312, second lubrication hole 312 are communicated with trepanning with the first lubrication hole 311 respectively.
Thus, lubricant oil flows to the second lubrication hole 312, first lubrication hole 311 through the trepanning of bent axle connecting sleeve 33 and finally flows in receiving cavity 13 to lubricate the inner ring 21 of link 20 and outer ring 22, achieve bent axle and connecting rod 30 joint, lubrication between bearing inner race 21 and outer ring 22 simultaneously, there is better lubrication effect.
Further, the aperture of the first lubrication hole 311 is greater than the aperture of the second lubrication hole 312, and wherein, the first lubrication hole 311 and the second lubrication hole 312 all extend along the axis of the first lubrication hole 311.Like this, along with the movement of piston 10, the movement of connecting rod 30 and rotation, fluid in receiving cavity 13 shakes and lubricates the cooperation place of inner ring 21 and outer ring 22, when piston 10 moves forward, fluid is through bent axle connecting sleeve 33, second lubrication hole 312, first lubrication hole 311 flows in receiving cavity 13, when piston 10 moves backward, part fluid can flow in the second lubrication hole 312 through the first lubrication hole 311, aperture due to the second lubrication hole 312 is less than the aperture of the first lubrication hole 311, decrease the fluid amount being back to the second lubrication hole 312 through the first lubrication hole 311, fluid can be retained in receiving cavity 13 and think that inner ring 21 and outer ring 22 are carried out lubrication and compensated, ensure, between inner ring 21 and outer ring 22, there is better lubrication effect.
In a specific embodiment, the diameter of the first lubrication hole 311 is 4-6mm, and the external diameter of connecting rod 32 is 8-10mm.Thus, the aperture of the first lubrication hole 311 can make more a lot of lubricating oils pass through to strengthen lubrication effect further.
As shown in Figure 2, in another embodiment, at least part of inwall of outer ring 22 is provided with self-lubricating layer 23.Thus, outer ring 22 is provided with self-lubricating layer 23 with the spherical rotation cooperation place of inner ring 21, further increases wear resistance and the reliability of link 20.In the concrete example shown in Fig. 2, the inwall of outer ring 22 has depressed part circumferentially, the end face of depressed part and outer ring 22 has interval, self-lubricating layer 23 is positioned at depressed part, and the upper surface of self-lubricating layer 23 and the internal partial wall of outer ring 22 form the fitting surface for coordinating with inner ring 21 spherical rotation jointly.Thus, self-lubricating layer 23 is embedded in the depressed part of outer ring 22, avoids coming off of self-lubricating layer 23 when inner ring 21 relatively rotates with outer ring 22, enhances tightness and stability that self-lubricating layer 23 is connected with outer ring 22.
Further, self-lubricating layer 23 is that plastic resin layers is to strengthen oil lubrication effect.Further preferably, plastic resin layers is polytetrafluoroethylplastic plastic layer or poly-perfluoroalkoxy resin layer.Thus, not only increase oil lubrication effect, and alleviate the overall weight of piston rod part 100.
In certain embodiments, the rotation angle of the relative outer ring 22 of inner ring 21 is less than or equal to 30 °.Thus, avoid connecting rod 30 and outer ring 22 in rotation process to interfere, make inner ring 21 more smooth relative to rotating of outer ring 22.
Above-mentioned piston rod part 100 is comprised according to the compressor of the utility model second aspect embodiment.Be reciprocal compressor according to the compressor of the utility model second aspect embodiment, this reciprocal compressor compresses by piston 10 is reciprocating in cylinder and carries gas.Adopt the compressor of above-mentioned piston rod part 100, to be coordinated with the spherical rotation between outer ring 22 by the inner ring 21 of link 20 and achieve connecting rod 30 and the common movement of piston 10 and the rotation of connecting rod 30 opposing pistons 10.Thus, according to the compressor of the utility model second aspect embodiment not only compact structure, easy for installation, and connecting rod 30 is when driving piston 10 to do straight line motion, certain amounts of rotation can be there is to reduce piston 10 and cylinder, wearing and tearing between connecting rod 30 and bent axle by opposing pistons 10 in connecting rod 30, thus reduce wearing and tearing noise, strengthen the reliability of compressor.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (10)
1. for a piston rod part for compressor, it is characterized in that, comprising:
Piston, described piston has mounting hole;
Link, described link comprises inner ring and outer ring, and described inner ring is coordinated by spherical rotation with between outer ring, and described outer ring is connected in described mounting hole;
Connecting rod, described connecting rod is connected with described inner ring.
2. the piston rod part of compressor according to claim 1, is characterized in that, described piston also has the groove being positioned at and being communicated with inside described mounting hole and with described mounting hole, and described groove and described link, described connecting rod limit receiving cavity jointly.
3. the piston rod part of compressor according to claim 2, is characterized in that, described connecting rod has oil leab, and described oil leab communicates with described receiving cavity, and described inner ring is communicated with described receiving cavity with the cooperation place of described outer ring.
4. the piston rod part of compressor according to claim 3, is characterized in that, described connecting rod comprises:
Connecting rod, the first end of described connecting rod is connected with described inner ring, and described connecting rod is provided with the first lubrication hole;
Bent axle connecting sleeve, second end of described connecting rod is connected with described bent axle connecting sleeve, the second lubrication hole described bent axle connecting sleeve having trepanning and be connected with the trepanning of described bent axle connecting sleeve, described receiving cavity, described first lubrication hole, described second lubrication hole are communicated with successively.
5. the piston rod part of compressor according to claim 4, is characterized in that, the aperture of described first lubrication hole is greater than the aperture of described second lubrication hole.
6. the piston rod part of compressor according to claim 1, is characterized in that, described link is joint shaft bearing.
7. the piston rod part of compressor according to claim 1, is characterized in that, at least part of inwall of described outer ring is provided with self-lubricating layer.
8. the piston rod part of compressor according to claim 7, is characterized in that, described self-lubricating layer is plastic resin layers.
9. the piston rod part of compressor according to claim 8, is characterized in that, described plastic resin layers is polytetrafluoroethylplastic plastic layer or poly-perfluoroalkoxy resin layer.
10. a compressor, is characterized in that, comprises piston rod part as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520411453.3U CN204984777U (en) | 2015-06-15 | 2015-06-15 | A piston link assembly and compressor for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520411453.3U CN204984777U (en) | 2015-06-15 | 2015-06-15 | A piston link assembly and compressor for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984777U true CN204984777U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520411453.3U Expired - Fee Related CN204984777U (en) | 2015-06-15 | 2015-06-15 | A piston link assembly and compressor for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204984777U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912771A (en) * | 2015-06-15 | 2015-09-16 | 安徽美芝制冷设备有限公司 | Compressor and piston and connecting rod component for same |
| CN107218203A (en) * | 2017-07-21 | 2017-09-29 | 上海宇盛压缩机械有限公司 | A kind of compressor and its piston rod part |
-
2015
- 2015-06-15 CN CN201520411453.3U patent/CN204984777U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912771A (en) * | 2015-06-15 | 2015-09-16 | 安徽美芝制冷设备有限公司 | Compressor and piston and connecting rod component for same |
| CN107218203A (en) * | 2017-07-21 | 2017-09-29 | 上海宇盛压缩机械有限公司 | A kind of compressor and its piston rod part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180615 |