CN108757715A - Connecting rod, pump assembly, compressor - Google Patents
Connecting rod, pump assembly, compressor Download PDFInfo
- Publication number
- CN108757715A CN108757715A CN201810770487.XA CN201810770487A CN108757715A CN 108757715 A CN108757715 A CN 108757715A CN 201810770487 A CN201810770487 A CN 201810770487A CN 108757715 A CN108757715 A CN 108757715A
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- China
- Prior art keywords
- hole
- connecting rod
- bushing
- bent axle
- rod 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
A kind of connecting rod of present invention offer, pump assembly, compressor.The connecting rod, including con-rod only, described con-rod only one end has bent axle interconnecting piece, the bent axle connection part structure has the first hole, first hole has the first long axis, bushing is removably embedded in first hole, the exterior contour of the bushing matches with first hole, and the bushing is configured with bent axle connecting hole.A kind of connecting rod according to the present invention, pump assembly, compressor, it can make same connecting rod that there are different connecting rod centre-to-centre spacing by replacing different bushings, to meet the needs of identical cylinder diameter different displacements, without adjusting, replacing to cylinder block, piston, the versatility for improving cylinder block and piston avoids the generation in the prior art obscured and misuse phenomenon, reduces the quantity of cubing, be conducive to lean production, substantially increase production efficiency.
Description
Technical field
The invention belongs to compressor manufacturing technical fields, and in particular to a kind of connecting rod, pump assembly, compressor.
Background technology
At present in addition to the only connecting rod such as some small parts such as bolt and nut, gasket is general part in pump housing building block, and
Compressor manufacture during, due to the difference of compressor displacement, identical cylinder diameter, different displacements compressor, need to phase
Component is answered to be replaced or adjust.
As shown in Figure 1, for the structural schematic diagram of existing connecting rod, connecting rod includes major part 1 ' for being connect with bent axle, uses
In connection gudgeon pin shaft microcephaly 2 ' and be connected to link arm 3 ' between the two, the major part 1 ', microcephaly 2 ' are all configured with
Circular hole, the centre-to-centre spacing between two circular holes form connecting rod centre-to-centre spacing L20, and existing connecting rod centre-to-centre spacing is fixed value (since connecting rod is
General part), it is therefore desirable to cylinder block, piston are accordingly replaced, in the case where connecting rod centre-to-centre spacing is constant, to meet phase
With the demand of cylinder diameter different displacements, and the size difference between replaced cylinder block and piston is often smaller, in order to prevent
Obscure, misuse, distinguishing identifier is often set on cylinder block and piston, but is used in the fast pace process manufactured, is wrong
With the problem of still happen occasionally, the reason is that the corresponding component for needing replacing or adjusting is more, meanwhile, this replacement meeting
Lubrication relationship between piston and cylinder adversely affects；In addition, being generally required for cylinder block, the piston of replacement outer
Association's processing, and cooperation processing needs the processing and debugging period, extension development cycle that can be direct or indirect, when batch production, and needs
It synchronizes and increases corresponding cubing and tooling, low production efficiency, be unfavorable for lean production.
Invention content
Therefore, the technical problem to be solved in the present invention is to provide a kind of connecting rod, pump assembly, compressor, can pass through
Replacing different bushings makes same connecting rod have different connecting rod centre-to-centre spacing, to meet the needs of identical cylinder diameter different displacements,
Without adjusting, replacing to cylinder block, piston, the versatility of cylinder block and piston is improved, is avoided in the prior art mixed
Confuse and misuse the generation of phenomenon, reduce the quantity of cubing, is conducive to lean production, substantially increases production efficiency.
To solve the above-mentioned problems, the present invention provides a kind of connecting rod, including con-rod only, described con-rod only one end have
Bent axle interconnecting piece, the bent axle connection part structure have the first hole, and first hole has the first long axis, removable in first hole
It is embedded in bushing with unloading, the exterior contour of the bushing matches with first hole, and the bushing is configured with bent axle connecting hole.
Preferably, first hole is waist-shaped hole.
Preferably, the circle centre position of the bent axle connecting hole is on the long axis in first hole.
Preferably, the bushing quantity is multiple, and the appearance and size of multiple bushings is identical, and each bushing is all configured with
The bent axle connecting hole.
Preferably, the bushing includes at least the first bushing, the second bushing, and the long axis maximum length of the bushing is L, institute
The aperture for stating bent axle connecting hole is D, and the center of circle of the bent axle connecting hole is in the long axis first position of first bushing, described
The center of circle of bent axle connecting hole is in the second position of the long axis of second bushing, and the first position exists with the second position
Distance on the long axis direction is △ X, △ X=0~(L-D).
Preferably, hole internal wall transitions cooperation or interference fit of the bushing with first hole connects.
Preferably, the side aperture in first hole is configured with bent axle assembly and allows bit architecture.
Preferably, the bent axle by bit architecture include towards extend on the inside of first hole and with first hole orifice end
The parallel flange in face, to step down to bent axle in built-up crankshaft.
Preferably, the material of the bushing is one kind in aluminium alloy, powder metallurgy, cast iron.
Preferably, the bushing is split structure.
Preferably, the bushing includes first seperated, second seperated, has salient point on first fission, and described second
There is groove with the salient point Corresponding matching, described first seperated passes through recessed seperated with described second of the salient point on fission
Slot engages to form the bushing.
The present invention also provides a kind of pump assemblies, including above-mentioned connecting rod.
The present invention also provides a kind of compressors, including above-mentioned pump assembly.
A kind of connecting rod provided by the invention, pump assembly, compressor can make similarly to connect by replacing different bushings
Bar has different connecting rod centre-to-centre spacing, to meet the needs of identical cylinder diameter different displacements, without adjusting to cylinder block, piston,
It replaces, improves the versatility of cylinder block and piston, avoid the generation in the prior art obscured and misuse phenomenon, and reduce
The quantity of cubing is conducive to lean production, substantially increases production effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of connecting rod in the prior art；
Fig. 2 is the structural schematic diagram of the connecting rod of the embodiment of the present invention；
Fig. 3 is the configuration schematic diagram of the connecting rod of the embodiment of the present invention；
Fig. 4 is the dimensional structure diagram of the bushing of the connecting rod of another embodiment of the present invention；
Fig. 5 is the dimensional structure diagram of the bushing of the connecting rod of yet another embodiment of the invention；
Fig. 6 is the cross-sectional view of the pump housing of further embodiment of this invention；
Fig. 7 be further embodiment of this invention the pump housing in cylinder block and piston assembly relation schematic diagram；
Fig. 8 is the overlooking structure diagram of Fig. 6.
Reference numeral is expressed as：
1, con-rod only；2, gudgeon pin shaft connecting hole；3, bent axle interconnecting piece；31, the first hole；32, bushing；321, first point
Body；322, second is seperated；33, bent axle connecting hole；34, flange；41, cylinder block；42, piston；43, bent axle；44, axis pin；1 ', big
Head；2 ' microcephalies；3 ', link arm.
Specific implementation mode
In conjunction with referring to shown in Fig. 1 to Fig. 8, according to an embodiment of the invention, a kind of connecting rod is provided, is compressed for reciprocating-piston
Machine, including con-rod only 1, one end of the con-rod only 1 are configured with gudgeon pin shaft connecting hole 2, the con-rod only 1 with it is described
There is the opposite side of gudgeon pin shaft connecting hole 2 bent axle interconnecting piece 3, the bent axle interconnecting piece 3 to be configured with the first hole 31, and described the
There is the first long axis, first long axis to be located on the symmetry axis of 1 width direction of the con-rod only in one hole 31, first hole
Bushing 32 is removably embedded in 31, the exterior contour of the bushing 32 matches with first hole 31,32 structure of the bushing
Bent axle connecting hole 33 is made.In specific application, it is only necessary to which, according to the demand of displacement volume, selection has in predetermined matching connecting rod
The heart away from bent axle connecting hole 33 bushing 32 in first hole 31, without the piston and cylinder to having originally
Seat is especially handled, namely since the connecting rod has the adjustment function of connecting rod centre-to-centre spacing, so as to avoid the prior art
In connecting rod centre-to-centre spacing nonadjustable the drawbacks of bringing.In short, the connecting rod using the technical program can be different by replacing
Bushing make same connecting rod that there are different connecting rod centre-to-centre spacing, to meet the needs of identical cylinder diameter different displacements, without to gas
Cylinder seat, piston are adjusted, are replaced, and improve the versatility of cylinder block and piston, avoid it is in the prior art obscure misuse it is existing
The generation of elephant, and reduce the quantity of cubing, be conducive to lean production, substantially increase production efficiency.Preferably, described
One hole 31 is waist-shaped hole, and the difficulty of processing of 32 exterior contour of the bushing can be reduced using waist-shaped hole.The material of the bushing 32
Material can be one kind in aluminium alloy, powder metallurgy, cast iron, also can be with the material identical of con-rod only 1, can not also
Together, make the production of the bushing 32 more flexible.
Further, the circle centre position of the bent axle connecting hole 33 is on the long axis in first hole 31, namely works as and song
When axis 43 connects, for the bent axle 43 by the long axial symmetry about first hole 31, this is conducive to the eccentric fortune of the bent axle 43
It is dynamic.
As described above, 32 quantity of the bushing should be set as multiple, the appearance and size of multiple bushings 32 is identical, respectively
A bushing 32 is all configured with the bent axle connecting hole 33, and best, the bent axle connecting hole 33 that multiple bushings 32 have exists
Certain gradient is formed in mutual spacing, to make multiple bushings 32 become a standardised series, identical cylinder diameter not
With under the demand of discharge capacity, selection replacement can be carried out according to different demands.
Further, the bushing 32 includes at least the first bushing, the second bushing, and the long axis of the bushing 32 most greatly enhances
Degree is L, and the aperture of the bent axle connecting hole 33 is D, and the center of circle of the bent axle connecting hole 33 is in the long axis of first bushing
First position, the center of circle of the bent axle connecting hole 33 are in the second position of the long axis of second bushing, the first position
It is △ X, △ X=0~(L-D) at a distance from the second position is on the long axis direction, which gives described
The range that bent axle connecting hole 33 opens up on the bushing 32 can make adjustment model of the bushing 32 to the connecting rod centre-to-centre spacing
Enclose connecting rod center distance regulation ability that is wider, namely further improving the connecting rod.
The bushing 32 may be used various ways and be connect with first hole 31, it is preferable that the bushing 32 with it is described
The hole internal wall transitions cooperation in the first hole 31 or interference fit connection, such mode can avoid the structure to the connecting rod from causing to damage
It is bad, the generation of stress concentration phenomenon is avoided, the service life of the connecting rod is improved.
In order to keep the assembling process of the connecting rod and bent axle 43 more smooth, the side aperture in first hole 31 is configured with
Bent axle assembly allows bit architecture, allows a kind of specific implementation mode of bit architecture as bent axle assembly, it is preferable that the bent axle allows
Bit architecture includes towards first hole, 31 inside extension and the flange 34 parallel with first hole, 31 aperture end face, to fill
It steps down to bent axle when with bent axle, this mode can also be supported only the bushing 32 being embedded in first hole 31
Position, ensure the bushing 32 the first hole 31 position reliability.
The bushing 32 can be integrated, and certainly, the bushing 32 may be designed in split structure, such as
The bushing 32 includes the first fission 321, the second fission 322, has salient point on first fission 321, and described second is seperated
Have the groove with the salient point Corresponding matching, first fission 321 seperated with described second by the salient point on 322
322 groove engages to form the bushing 32.Effective fool proof can be carried out to the split type bushing 32 using such mode.
According to an embodiment of the invention, as shown in Figure 6 to 8, a kind of pump assembly, including above-mentioned connecting rod are also provided,
The pump assembly further includes cylinder block 41, piston 42, bent axle 43, and one end of the connecting rod passes through axis pin 44 with the piston 42
Be rotatably connected, 44 activity of the axis pin is plugged in the gudgeon pin shaft connecting hole 2 that the connecting rod has, the connecting rod it is another
End is rotatably connected by the bushing 32 with the bent axle 43.
In order to further elucidate helpfulness of the connecting rod using the present invention in being applied to the pump housing, in conjunction with Fig. 6 to Fig. 8 into
Row is described in detail, and L1 is gudgeon pin shaft centre bore height in figure, L2 is connecting rod centre-to-centre spacing, L3 is eccentricity of crankshaft (for variable), L4
It is that cylinder-bore seals the effective length (change to be changed with L4 in the prior art for connecting rod recessing groove centre-to-centre spacing, L5 (for definite value), L6
Amount, the present invention in be definite value), L7 be piston seal length (homology is classified as definite value), L8 be piston oil slot width (in the prior art
Be definite value in the present invention for the variable changed with L10), L9 be the minimum seal distance of piston base and cylinder block wall body, L10
For the minimum seal distance (being in the prior art variable, the present invention is definite value) of top land and cylinder block wall body, a is bent axle branch
The eccentric angle (homology is classified as definite value) of bearing centre and piston pin axis hole center is supportted, L=L1+L2+L3 is definite value, wherein L5=
L4+L3, L5=L2cosa.
As described above, in the prior art, since connecting rod centre-to-centre spacing L2 is the amount of cannot be adjusted, to make L2 be definite value, in addition,
Pump body structure limits L and is only definite value, in order to ensure the demand of identical cylinder diameter different displacements, results in above-mentioned L1+L3 and protects
L=L1+L2+L3 can be met by holding definite value, and L1 is corresponded to L3 to be changed, namely needs to be replaced cylinder block and piston.And it adopts
Then achieved the purpose that without such as in the prior art change L1, namely without to gas by changing L2 with the connecting rod of the present invention
Cylinder seat and piston are replaced, to improve the versatility of cylinder block and piston, avoid it is in the prior art obscure misuse
The generation of phenomenon reduces the quantity of cubing, is conducive to lean production, substantially increases production efficiency.
On the other hand, since L5=L2cosa, L2 in the prior art are definite value, therefore L5 is also definite value, and L5=L4+L3,
When discharge capacity changes, to ensure to assemble, L4 need to follow L3 to change to meet the needs of L5 is definite value.And use the present invention
Connecting rod after, L5 since L2 has carried out corresponding change according to the change request of discharge capacity, disclosure satisfy that L5 be definite value need
It asks.
In another aspect, L4 is variable in the prior art, L7 is definite value, required to ensure that L9, L10 meet minimal design, L6,
L8 needs to change in conjunction with each type requirement, is one of criterion design review main points, is design variable；Connecting rod using the present invention,
L1, L4, L6, L7, L8 are all definite value, and L10 is definite value, and L9 is changed with discharge capacity, as long as when discharge capacity maximum, meeting seal distance, then
Complete series can meet seal request, namely ensure that the lubrication relationship between piston and cylinder block.
According to an embodiment of the invention, a kind of compressor, including above-mentioned pump assembly are also provided.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the guarantor of the present invention
Protect range.
Claims (13)
1. a kind of connecting rod, which is characterized in that including con-rod only (1), described con-rod only (1) one end has bent axle interconnecting piece
(3), the bent axle interconnecting piece (3) is configured with the first hole (31), and first hole (31) has the first long axis, first hole
(31) bushing (32) is removably embedded in, the exterior contour of the bushing (32) matches with first hole (31), described
Bushing (32) is configured with bent axle connecting hole (33).
2. connecting rod according to claim 1, which is characterized in that first hole (31) is waist-shaped hole.
3. connecting rod according to claim 1, which is characterized in that the circle centre position of the bent axle connecting hole (33) is described first
On the long axis in hole (31).
4. connecting rod according to claim 3, which is characterized in that bushing (32) quantity is multiple, multiple bushings
(32) appearance and size is identical, and each bushing (32) is all configured with the bent axle connecting hole (33).
5. connecting rod according to claim 4, which is characterized in that the bushing (32) includes at least the first bushing, the second lining
The long axis maximum length of set, the bushing (32) is L, and the aperture of the bent axle connecting hole (33) is D, the bent axle connecting hole
(33) the center of circle is in the long axis first position of first bushing, and the center of circle of the bent axle connecting hole (33) is in described second
The second position of the long axis of bushing, the first position are △ X, △ at a distance from the second position is on the long axis direction
X=0~(L-D).
6. connecting rod according to claim 1, which is characterized in that the hole inner wall of the bushing (32) and first hole (31)
Transition coordinates or interference fit connection.
7. connecting rod according to claim 1, which is characterized in that the side aperture of first hole (31) is configured with bent axle dress
With allowing bit architecture.
8. connecting rod according to claim 7, which is characterized in that the bent axle includes towards first hole by bit architecture
(31) inside extension and the flange (34) parallel with the first hole (31) aperture end face, to be carried out to bent axle in built-up crankshaft
It steps down.
9. connecting rod according to claim 1, which is characterized in that the material of the bushing (32) be aluminium alloy, powder metallurgy,
One kind in cast iron.
10. connecting rod according to any one of claim 1 to 9, which is characterized in that the bushing (32) is split type knot
Structure.
11. connecting rod according to claim 10, which is characterized in that the bushing (32) includes first seperated (321), second
Seperated (322) have salient point on described first seperated (321), have corresponding with the salient point on described second seperated (322)
The groove matched, described first seperated (321) engage to form the lining by the groove of the salient point (322) seperated with described second
It covers (32).
12. a kind of pump assembly, including connecting rod, which is characterized in that the connecting rod is described in any one of claim 1 to 11
Connecting rod.
13. a kind of compressor, including pump assembly, which is characterized in that the pump assembly is the pump housing described in claim 12
Component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770487.XA CN108757715B (en) | 2018-07-13 | 2018-07-13 | Connecting rod, pump body assembly and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810770487.XA CN108757715B (en) | 2018-07-13 | 2018-07-13 | Connecting rod, pump body assembly and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108757715A true CN108757715A (en) | 2018-11-06 |
| CN108757715B CN108757715B (en) | 2023-08-29 |
Family
ID=63973733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810770487.XA Active CN108757715B (en) | 2018-07-13 | 2018-07-13 | Connecting rod, pump body assembly and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757715B (en) |
Citations (6)
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| CN1740565A (en) * | 2004-08-25 | 2006-03-01 | 丹佛斯公司 | Piston type compressor and assembling method thereof |
| CN202900571U (en) * | 2012-10-22 | 2013-04-24 | 杭州钱江压缩机有限公司 | Connecting rod structure of compressor |
| CN204061519U (en) * | 2014-07-11 | 2014-12-31 | 上海通用汽车有限公司 | A kind of engine link and motor |
| CN106678017A (en) * | 2017-02-14 | 2017-05-17 | 安徽美芝制冷设备有限公司 | Reciprocating compressor and refrigerator with same |
| 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 |
| CN208503246U (en) * | 2018-07-13 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Connecting rod, pump assembly, compressor |
-
2018
- 2018-07-13 CN CN201810770487.XA patent/CN108757715B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1740565A (en) * | 2004-08-25 | 2006-03-01 | 丹佛斯公司 | Piston type compressor and assembling method thereof |
| DE102004041042A1 (en) * | 2004-08-25 | 2006-03-30 | Danfoss A/S | Piston for refrigerant condensing device, comprising eye of connecting rod made of two segments, and method of assembly |
| CN202900571U (en) * | 2012-10-22 | 2013-04-24 | 杭州钱江压缩机有限公司 | Connecting rod structure of compressor |
| CN204061519U (en) * | 2014-07-11 | 2014-12-31 | 上海通用汽车有限公司 | A kind of engine link and motor |
| CN106678017A (en) * | 2017-02-14 | 2017-05-17 | 安徽美芝制冷设备有限公司 | Reciprocating compressor and refrigerator with same |
| 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 |
| CN208503246U (en) * | 2018-07-13 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Connecting rod, pump assembly, compressor |
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| Publication number | Publication date |
|---|---|
| CN108757715B (en) | 2023-08-29 |
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