CN109356819A - Piston structure and compressor with it - Google Patents
Piston structure and compressor with it Download PDFInfo
- Publication number
- CN109356819A CN109356819A CN201811512042.8A CN201811512042A CN109356819A CN 109356819 A CN109356819 A CN 109356819A CN 201811512042 A CN201811512042 A CN 201811512042A CN 109356819 A CN109356819 A CN 109356819A
- Authority
- CN
- China
- Prior art keywords
- piston
- hole
- pin
- piston pin
- structure according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 28
- 239000010687 lubricating oil Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
- F04B39/0292—Lubrication of pistons or cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of piston structure and with its compressor.Piston structure includes: piston only, and piston only is in the form of a column structure, and the first end of piston only is working end, and the second end of piston only with connecting rod for being connected；Wherein, the second end of piston only, which is provided with, to be passed through for lock piece with by the interconnecting piece of piston pin locking, interconnecting piece at least two, the first end of one in two interconnecting pieces and piston pin is oppositely disposed, the second end of another and piston pin is oppositely disposed, and is formed between the interconnecting piece being oppositely arranged and is allowed bit space for what connecting rod passed through.The interconnecting piece that setting at least two is passed through for lock piece in the end of piston only, and two interconnecting pieces are correspondingly arranged with the both ends of piston pin respectively, it is arranged in this way so that when assembling piston pin, it is not necessary that piston pin contraposition can be achieved with piston pin and piston only assembly, the assembly process that piston pin assembly needs to align is saved, the assembly efficiency of piston is greatly improved.
Description
Technical field
The present invention relates to compressor apparatus technical fields, in particular to a kind of piston structure and with its compression
Machine.
Background technique
What current refrigerator compressor substantially used is all piston compressor, and what piston structure was all made of is cylindrical type.
There are 1 annular groove and 1 elastic pin hole on piston.Existing piston structure has the following problems:
1, there was only 1 elastic pin hole on piston.Corresponding on piston pin also there was only 1 elastic pin hole, when assembly, needs to protect
The elastic pin hole of card two direction is consistent, needs to carry out contraposition control, wastes assembly time, reduce assembly efficiency.
2, it is generally provided with annular groove close to the border of piston pin hole among existing piston, lubricating oil is by entering ring
Connected in star does not have drainback passage later, so that lubricating oil is cumulative, certain resistance is finally caused to piston motion, is unfavorable for
The raising of compressor performance.
Summary of the invention
The main purpose of the present invention is to provide a kind of piston structure and with its compressor, to solve in the prior art
The low problem of piston assembly efficiency.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of piston structure, comprising: piston sheet
Body, piston only are in the form of a column structure, and the first end of piston only is working end, and the second end of piston only with connecting rod for being connected
It connects；Wherein, the second end of piston only, which is provided with, passes through for lock piece with by the interconnecting piece of piston pin locking, interconnecting piece is at least
The first end of two, one in two interconnecting pieces and piston pin is oppositely disposed, another is opposite with the second end of piston pin
Ground setting forms between the interconnecting piece being oppositely arranged and allows bit space for what connecting rod passed through.
Further, interconnecting piece is the connecting hole on the end face for the second end for being opened in piston only.
Further, the axis of connecting hole is extended along the axis direction of piston only.
Further, the radial direction of piston only offers the piston pin hole of perforation, and piston pin hole is connected with connecting hole
It is logical.
Further, the outer peripheral surface of piston only is provided with annular oil groove, offers in annular oil groove and piston only
The oil return hole that inside is connected.
Further, the diameter of piston pin hole isWherein,
Further, the width of annular oil groove is W1, wherein 4mm≤W1≤8mm, and/or, the depth L1 of annular oil groove,
Wherein, 0.4mm≤L1≤1.8mm.
Further, the diameter of connecting hole isWherein,
Further, oil return hole is waist-shaped hole, a length of L2 of waist-shaped hole, wherein 4mm≤L2≤10mm, width W2,4mm
≤ W2≤10mm, alternatively, oil return hole is round hole, the diameter of oil return hole isWherein,
According to another aspect of the present invention, a kind of compressor, including piston structure are provided, piston structure is above-mentioned work
Plug structure.
It applies the technical scheme of the present invention, the connection that setting at least two is passed through for lock piece in the end of piston only
Portion, and two interconnecting pieces are correspondingly arranged with the both ends of piston pin respectively, in this way setting so that when assembling piston pin,
It is not necessary that piston pin contraposition can be achieved with piston pin and piston only assembly, the assembler that piston pin assembly needs to align is saved
Sequence greatly improves the assembly efficiency of piston.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the first embodiment of piston structure according to the present invention；
Fig. 2 shows the schematic cross-sectional views of the second embodiment of piston structure according to the present invention；
Fig. 3 shows the schematic cross-sectional view of the 3rd embodiment of piston structure according to the present invention；
Fig. 4 shows the schematic cross-sectional view of the embodiment of piston pin according to the present invention；
Fig. 5 shows the schematic cross-sectional view of the embodiment of compressor according to the present invention.
Wherein, the above drawings include the following reference numerals:
10, piston only；11, connecting hole；12, piston pin hole；13, annular oil groove；14, oil return hole；
20, piston pin；21, pin hole；
30, lock piece；40, cylinder block；50, connecting rod；60, plane bearing；70, crankshaft.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be noted that term " first ", " second " etc. in the description and claims of this application and attached drawing
It is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that the art used in this way
Language is interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary
Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein
Formula.It should be understood that it is thoroughly and complete to these embodiments are provided so that disclosure herein, and these are shown
The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand
The big thickness of layer and region, and make that identical device is presented with like reference characters, thus omission retouches them
It states.
In conjunction with shown in Fig. 1 to Fig. 5, according to an embodiment of the invention, providing a kind of piston structure.
Specifically, as shown in Figure 1 and Figure 5, which includes piston only 10, and piston only 10 is in the form of a column structure,
The first end of piston only 10 is working end, and the second end of piston only 10 with connecting rod 50 for being connected.Wherein, piston only
10 second end, which is provided with, to be passed through for lock piece 30 with by the interconnecting piece of 20 locking of piston pin, interconnecting piece at least two, and two
The first end of one in interconnecting piece and piston pin 20 is oppositely disposed, and the second end of another and piston pin 20 is relatively set
It sets, is formed between the interconnecting piece being oppositely arranged and allow bit space for what connecting rod 50 passed through.
In the present embodiment, the interconnecting piece passed through in the end of piston only setting at least two for lock piece, and two
Interconnecting piece is correspondingly arranged with the both ends of piston pin respectively, and setting is so that when assembling piston pin in this way, without that will live
Plug pin contraposition can be achieved with piston pin and piston only assembles, and save the assembly process that piston pin assembly needs to align, greatly
Ground improves the assembly efficiency of piston.Wherein, as shown in figure 4, the pin hole 21 passed through for lock piece is arranged in the end of piston pin 20.
Specifically, as shown in Figure 1 to Figure 3, interconnecting piece is the connection on the end face for the second end for being opened in piston only 10
Hole 11.Setting is so that the piston structure is simple, is easily worked in this way.Wherein, axis of the axis of connecting hole 11 along piston only 10
Line direction is extended.It is possible to further which the axis of connecting hole 11 to be arranged to the mode with the axis perpendicular of piston pin,
Setting can be improved the reliability that piston connects in this way.
The radial direction of piston only 10 offers the piston pin hole 12 of perforation, and piston pin hole 12 is connected with connecting hole 11
It is logical.Setting can facilitate installation piston pin in this way.Wherein, the diameter of piston pin hole 12 isWherein,
The diameter of connecting hole 11 isWherein,
The outer peripheral surface of piston only 10 is provided with annular oil groove 13, offered in annular oil groove 13 in piston only 10
The oil return hole 14 that portion is connected.Lubricating oil extra in piston chamber can be discharged in time for setting in this way, can reduce piston and exist
The resistance in operation is compressed, the performance of compressor is effectively improved.The width of annular oil groove 13 is W1, wherein 4mm≤W1≤
8mm, the depth L1 of annular oil groove 13, wherein 0.4mm≤L1≤1.8mm.
Wherein, as shown in Fig. 2, oil return hole 14 is waist-shaped hole, a length of L2 of waist-shaped hole, wherein 4mm≤L2≤10mm, it is wide
For W2,4mm≤W2≤10mm.Alternatively, as shown in figure 3, oil return hole 14 is round hole.When oil return hole 14 is round hole, oil return hole
14 diameter isWherein,
Piston structure in above-described embodiment can be also used for compressor apparatus technical field, i.e., according to the present invention another
Aspect, provides a kind of compressor, including piston structure, and piston structure is the piston structure in above-described embodiment.
Specifically, the type chamber two sides of piston structure are symmetrical arranged two piston pin hole, that is, connecting holes, solve piston pin and exist
Just need to align the problem that control causes assembly efficiency low when assembly.Meanwhile having one month in piston annular groove inner bottom
Tooth form or round oil return hole, reduce excessive lubricating oil and give the reciprocating motion of the pistons bring resistance of motion, while solving compression
Machine machine core oil storage is more, the problem of the slow bring oil sump lubricating oil deficiency of casing oil return.Pair of pin hole when reducing piston pin assembly
Position process, improves assembly efficiency.Using the piston structure of the structure, the lubrication oil circulation of internal piston is accelerated, is reduced
Excessive lubricating oil bring drag losses, improve performance during reciprocating motion of the pistons.It ensure that compressor housing returns simultaneously
Enough lubricants capacities are remained in oil sump.
Using the piston structure of the structure, piston pin does not need contraposition control in assembly, and the pin hole on piston pin is always
A contraposition on piston in two connecting holes, improves the assembly efficiency of piston and piston pin.Meanwhile the oil return hole be can
The lubricating oil being stored in groove is flowed back into the intracavitary portion of piston-type, compressor housing oil sump is finally flowed back into.
Piston pin hole is located at the center of annular groove.The two sides of the end face upper impression of the second end of piston structure are symmetrical
Two diameters areExtremelyConnecting hole, wherein the lock piece can be resilient key, and resilient key is assembled to the pin hole
It is connect afterwards with the pin hole on piston pin, plays the role of connecting piston fixed piston pin.On outer surface of piston, have one long
4mm-10mm, the oil return hole of wide 2mm-5mm, which is in kidney-shaped, on a side wall of piston, not completely through entire
Piston.
In another embodiment, piston pin is in cylindrical type, has a diameter to be in one end by proximal end faceExtremelyPin hole, the pin hole on piston connecting hole assemble when align completely, resilient key is inserted into bullet with interference fit type
Property pin hole in, by piston pin be fixed to piston on.After piston upper impression two sides respectively increase an elastic pin hole, pair of piston
Title property is more preferable.There is no anti-loaded problem when piston pin and resilient key assemble, assembly efficiency is improved.
As shown in figure 5, crankshaft 70 is arranged on cylinder block 40, plane bearing 60 is provided between crankshaft and cylinder block.
Than that described above, it is also necessary to which explanation is " one embodiment " spoken of in the present specification, " another implementation
Example ", " embodiment " etc. refer to that specific features, structure or the feature of embodiment description is combined to be included in the application summary
Property description at least one embodiment in.It is not centainly to refer to the same reality that statement of the same race, which occur, in multiple places in the description
Apply example.Furthermore, it is understood that is advocated is knot when describing a specific features, structure or feature in conjunction with any embodiment
Other embodiments are closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of piston structure characterized by comprising
Piston only (10), the piston only (10) are in the form of a column structure, and the first end of the piston only (10) is working end,
The second end of the piston only (10) with connecting rod for being connected；
Wherein, the second end of the piston only (10), which is provided with, passes through for lock piece with by the interconnecting piece of piston pin locking, institute
Interconnecting piece at least two is stated, the first end of one in two interconnecting pieces and the piston pin is oppositely disposed, another
A second end with the piston pin is oppositely disposed, and formation passes through for the connecting rod between the interconnecting piece being oppositely arranged
Allow bit space.
2. piston structure according to claim 1, which is characterized in that the interconnecting piece is to be opened in the piston only
(10) connecting hole (11) on the end face of second end.
3. piston structure according to claim 2, which is characterized in that the axis of the connecting hole (11) is along the piston sheet
The axis direction of body (10) is extended.
4. piston structure according to claim 2, which is characterized in that the radial direction of the piston only (10) offers
The piston pin hole (12) of perforation, the piston pin hole (12) are connected with the connecting hole (11).
5. piston structure according to claim 1, which is characterized in that the outer peripheral surface of the piston only (10) is provided with ring
Shape oil groove (13), the annular oil groove (13) is interior to offer the oil return hole being connected with the inside of the piston only (10)
(14)。
6. piston structure according to claim 4, which is characterized in that the diameter of the piston pin hole (12) isWherein,
7. piston structure according to claim 5, which is characterized in that the width of the annular oil groove (13) is W1, wherein
4mm≤W1≤8mm, and/or, the depth L1 of the annular oil groove (13), wherein 0.4mm≤L1≤1.8mm.
8. piston structure according to claim 2, which is characterized in that the diameter of the connecting hole (11) isWherein,
9. piston structure according to claim 5, which is characterized in that
The oil return hole (14) is waist-shaped hole, a length of L2 of the waist-shaped hole, wherein 4mm≤L2≤10mm, width W2,4mm≤
W2≤10mm, alternatively,
The oil return hole (14) is round hole, and the diameter of the oil return hole (14) isWherein,
10. a kind of compressor, including piston structure, which is characterized in that the piston structure is any one of claims 1 to 9
The piston structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512042.8A CN109356819A (en) | 2018-12-11 | 2018-12-11 | Piston structure and compressor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512042.8A CN109356819A (en) | 2018-12-11 | 2018-12-11 | Piston structure and compressor with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109356819A true CN109356819A (en) | 2019-02-19 |
Family
ID=65332048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811512042.8A Withdrawn CN109356819A (en) | 2018-12-11 | 2018-12-11 | Piston structure and compressor with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356819A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151482A (en) * | 1995-11-09 | 1997-06-11 | 三星电子株式会社 | Reciprocating compressor |
| CN2743561Y (en) * | 2004-11-17 | 2005-11-30 | 重庆宗申技术开发研究有限公司 | Piston |
| CN107524694A (en) * | 2017-07-24 | 2017-12-29 | 广州万宝集团压缩机有限公司 | A kind of connecting-rod bearing structure |
| CN209414088U (en) * | 2018-12-11 | 2019-09-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston structure and compressor with it |
-
2018
- 2018-12-11 CN CN201811512042.8A patent/CN109356819A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151482A (en) * | 1995-11-09 | 1997-06-11 | 三星电子株式会社 | Reciprocating compressor |
| CN2743561Y (en) * | 2004-11-17 | 2005-11-30 | 重庆宗申技术开发研究有限公司 | Piston |
| CN107524694A (en) * | 2017-07-24 | 2017-12-29 | 广州万宝集团压缩机有限公司 | A kind of connecting-rod bearing structure |
| CN209414088U (en) * | 2018-12-11 | 2019-09-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston structure and compressor with it |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190219 |
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| WW01 | Invention patent application withdrawn after publication |