CN100540898C - The connecting rod of hermetic motor compressor - Google Patents
The connecting rod of hermetic motor compressor Download PDFInfo
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- CN100540898C CN100540898C CNB2005100841031A CN200510084103A CN100540898C CN 100540898 C CN100540898 C CN 100540898C CN B2005100841031 A CNB2005100841031 A CN B2005100841031A CN 200510084103 A CN200510084103 A CN 200510084103A CN 100540898 C CN100540898 C CN 100540898C
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Abstract
The invention relates to a kind of connecting rod of hermetic motor compressor, it comprises that big end directly organizes, have the eccentric angle of inserting bent axle ring-type big end footpath and directly form one and prolong first link arm that forms with above-mentioned big end; The top end diameter group has the top end diameter that links to each other by rotation mode with piston and forms one with above-mentioned top end diameter, by second link arm that prolongs and link to each other with first link arm in big end footpath; Attachment hole be connected projection, they are positioned on the corresponding mutually position of above-mentioned first link arm and second link arm, and help big end footpath group to be connected with top end diameter.Wherein, big end footpath group is made by different materials with the top end diameter group, by giving prominence to the connection projection that forms and carry out stuff up a crack and connect running through above-mentioned attachment hole.The connecting rod of hermetic motor compressor of the present invention need not for the wearing and tearing that prevent that the friction of above-mentioned top end diameter and piston angle from being caused cylinder, piston and connecting rod to be processed separately, owing to can reduce its procedure, thereby can save manufacturing cost.
Description
Technical field
The present invention relates to a kind of hermetic motor compressor, particularly relate to a kind of connecting rod { A Connectingrod ForHermatic Compressor} of hermetic motor compressor of the straight line back and forth movement that rotatablely moving of bent axle is converted to piston.
Background technique
Fig. 1 is the internal structure sectional drawing according to the hermetic motor compressor of prior art; Fig. 2 is the structural representation according to the upper end portion of the hermetic motor compressor of prior art; Fig. 3 is the structural representation according to the connecting rod of prior art.
As shown in Figure 1, comprise seal container 1, it is made of upper container 1t and bottom container 1b, and its inside is provided with framework 2.And be fixed with fixed terminal 3 on the framework 2, and there is spring 2s to support in the inside of closed container 1.Also have, bent axle 5, it runs through the central authorities of framework 2 and is provided with; Gyrator 4, it forms one with bent axle 5 and interacts with bent axle 5 rotations by the electromagnetic field between fixed terminal 3.Eccentric angle 5b, it is established with rotating center off-centre in the upper end of bent axle 5.And forming balanced awl 5c in the opposite direction that eccentric angle 5b forms, bent axle 5 is subjected to the support of framework 2 with rotation mode.The outward edge of eccentric angle 5b inserts the big end footpath 9c of connecting rod 9 in addition, and the big end footpath 9c that makes connecting rod 9 slides along the outward edge of above-mentioned eccentric angle 5b.Also have oil passageway 5a, it forms in the inside of bent axle 5, disperses in the top that the machine oil L that is positioned at the bottom of closed container 1 can be introduced framework 2.Also have, pump tool 5d, it is arranged on the underpart of bent axle 5, machine oil L can be pumped into oil passageway 5a.
In addition, inside have pressing chamber 6 ' cylinder 6 form one with framework 2.Also have at above-mentioned cylinder 6 upper ends formation groove 6a.Above-mentioned groove 6a is corresponding with the following piston angle 7a that will narrate and establish, thus have can with the machine oil that disperses from the upper end of above-mentioned eccentric angle 5b through the outward edge of above-mentioned eccentric angle 5b flow into above-mentioned piston angle 7a and below effect between the top end diameter 9a that will narrate.
In addition, piston 7, it be positioned at pressing chamber 6 ' inside, link to each other with the top end diameter 9a of connecting rod 9.The inside of this piston 7 forms the closed chamber towards the rear portion.Above-mentioned piston 7 by the straight line back and forth movement along the pressing chamber 6 of above-mentioned cylinder 6 ' carry out will flow into pressing chamber 6 ' the startup fluid spue after compressing.In order on above-mentioned piston 7, to connect top end diameter 9a, piston angle 7a is inserted from the upper end of above-mentioned piston 7.But because there is the possibility that breaks away from from piston 7 in the above-mentioned piston angle 7a that exists of above-mentioned groove 6a in compression process.Therefore in order to prevent above-mentioned situation, on above-mentioned piston 7, form the fixed groove 7b of fixing above-mentioned piston angle 7a, and also have the fixed angles 8 that insertion said fixing groove 7b injects the side of above-mentioned piston angle 7a afterwards on the said fixing groove 7b.Connecting rod 9 is made of top end diameter 9a, trunk 9b and big end footpath 9c etc.Wherein, above-mentioned top end diameter 9a links to each other with piston 7 inboard formed closed chambers.For allow above-mentioned piston 7 in cylinder 6 along pressing chamber 6 ' carry out the straight line back and forth movement, above-mentioned top end diameter 9a is rotated in the scope in the closed chamber of above-mentioned piston 7 at a certain angle.Thereby the inside of above-mentioned top end diameter 9a is run through with certain diameter and is formed and link to each other with above-mentioned piston 7 by piston angle 7a.Above-mentioned top end diameter 9a is connected to the end of trunk 9b.At this moment, above-mentioned trunk 9b is made into shaft-like above-mentioned top end diameter 9a and the following big end footpath 9c that will narrate of connecting.
This connecting rod 9 is made into one by above-mentioned top end diameter 9a, trunk 9b and big end footpath 9c, and its material is generally used aluminum material.But the top end diameter 9a that this aluminum material is made easily weares and teares with the surface of contact of above-mentioned piston angle 7a, therefore must be lubricated the surface.Thereby form the machine oil service duct 9d that arrives the inward flange of above-mentioned top end diameter 9a from the inward flange of above-mentioned big end footpath 9c via the inside of above-mentioned trunk 9b in the above-mentioned connecting rod.
Also have valve member 10, it is provided with the front end of above-mentioned cylinder, to inflow and outflow pressing chamber 6 ' refrigeration agent control.On the above-mentioned valve member 10 top cover 11 is installed, top cover 11 connects with valve member 10 and establishes, make refrigeration agent can from absorbing silencer 12 be transported to above-mentioned pressing chamber 6 '.
But there are the following problems to have the prior art of structure as mentioned above.
Promptly, all there is aluminum material to form according to prior art connecting rod 9, though the surperficial illumination of big end footpath 9c and top end diameter 9a is low, but the eccentric angle 5b and the piston angle 7a that respectively insert above-mentioned big end footpath 9c and top end diameter 9a wear and tear with the big inward flange of footpath 9c and top end diameter 9a of holding, thereby in order to prevent that wearing and tearing from producing between above-mentioned big end footpath 9c and eccentric angle 5b, the oil passageway 5a supply machine oil by above-mentioned bent axle 5 is lubricated it.Also have in order on cylinder 6, to form groove 6a, and fixed groove 7b and fixed angles 8 are set on piston 7, and form the machine oil supply orifice of the inside of running through connecting rod 9 being lubricated between above-mentioned top end diameter 9a and the piston angle 7a.
Therefore the prior art wearing and tearing that prevent above-mentioned top end diameter 9a with is connected piston 7 and top end diameter 9a, need process cylinder 6, piston 7 and connecting rod 9 separately, thereby not only increase operation and also make the manufacturing cost increase.
This shows that the connecting rod of above-mentioned existing compressor obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.The problem that exists for the connecting rod that solves compressor, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of connecting rod of compressor of new structure, just become the current industry utmost point to need improved target.
Because the defective that the connecting rod of above-mentioned existing compressor exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, connecting rod in the hope of the hermetic motor compressor of founding a kind of new structure, can improve the connecting rod of general existing compressor, make it have more practicability.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective of the connecting rod existence of existing compressor, and a kind of connecting rod of hermetic motor compressor of new structure is provided, technical problem to be solved is to make it provide a kind of supply machine oil that needn't be continuous also can reduce the connecting rod of the hermetic motor compressor of the wearing and tearing that take place between top end diameter and the piston angle.
Another object of the present invention is that the top end diameter group that has nothing in common with each other in making and big end footpath group combine when constituting the divergence type connecting rod, need not to increase the connecting rod of the hermetic motor compressor of miscellaneous equipment.
The object of the invention to solve the technical problems realizes by the following technical solutions.The connecting rod of a kind of hermetic motor compressor that proposes according to the present invention, it is characterized in that: comprise that big end directly organizes, it is made of the big end footpath and first link arm, and wherein big end directly forms ring-type and inserts the eccentric angle of bent axle, and first link arm directly forms one and prolongs with above-mentioned big end and forms; The top end diameter group, it forms one and prolongs by the top end diameter that links to each other with the piston rotation mode with above-mentioned top end diameter, and and second link arm formation of the first link arm combination in above-mentioned big end footpath; Attachment hole be connected projection, directly organize with the top end diameter group and be provided with for connecting above-mentioned big end, be positioned at corresponding position on above-mentioned first link arm and second link arm; Above-mentioned big end directly organize with the top end diameter group be to be made by unlike material, link to each other by the connection projection that runs through above-mentioned attachment hole being carried out stuff up a crack.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The connecting rod of aforesaid hermetic motor compressor, it is to be made by aluminum alloy material that wherein said big end is directly organized.
The connecting rod of aforesaid hermetic motor compressor, wherein said top end diameter group are to be formed through oversintering by the metal stronger than aluminum alloy wear resistance.
The connecting rod of aforesaid hermetic motor compressor, each front end of wherein said first link arm and second link arm form the corresponding curved-surface shape depression of outer surface with above-mentioned top end diameter and big end footpath, and contact with the outer surface in above-mentioned top end diameter and big end footpath.
The connecting rod of aforesaid hermetic motor compressor, each first joint that forms of the front end of wherein said first link arm and second link arm and second joint form stepped, and corresponding position forms above-mentioned projection and the attachment hole of being connected on above-mentioned first joint and second joint.
The connecting rod of aforesaid hermetic motor compressor, form in the middle of the front end of wherein said first link arm and second link arm with depression or first joint and second joint outstanding and that be harmonious, by inserting angle of attachment on the attachment hole of above-mentioned first and second joint first joint is connected with second joint running through.
The connecting rod of aforesaid hermetic motor compressor, wherein said first joint and second joint are the space and the protuberances of the hexahedral shape that is harmonious.
By technique scheme, the connecting rod of hermetic motor compressor of the present invention has following advantage at least:
1, connecting rod is divided into that big end is directly organized and the top end diameter group is made and combination according to the present invention.The top end diameter group that wherein will connect piston is to form by metal powder sintered, and directly organizing with the continuous big end of eccentric angle is to be made by aluminum material.The intensity at the top end diameter of this top end diameter group that forms by sintering and the piston angle of above-mentioned piston is very nearly the same thereby need not continuous oil supply, and its wearing and tearing are very light.
2, needn't cylinder, piston and connecting rod be processed separately in order to reduce the wearing and tearing at above-mentioned top end diameter and piston angle according to the present invention, promptly reduced operation and also lowered fabricating cost.
3, directly to organize with the top end diameter group be to link to each other by stuff up a crack to the big end of also with good grounds the present invention, and this stuff up a crack is the operation that need not to increase equipment, thereby make connecting rod existing equipment according to the present invention and can use in the same old way.
In sum, the connecting rod of the hermetic motor compressor of special construction of the present invention, it has above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use and really genus innovation, no matter it all has bigger improvement on product structure or function, have large improvement technically, and produced handy and practical effect, and the connecting rod of more existing compressor has the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the internal structure sectional drawing according to the hermetic motor compressor of prior art;
Fig. 2 is the structural representation according to the upper end portion of the hermetic motor compressor of prior art;
Fig. 3 is the structural representation according to the connecting rod of prior art;
Fig. 4 is the structural representation of the upper end portion of the hermetic motor compressor that adopted of first embodiment according to connecting rod of the present invention;
Fig. 5 a is the structural representation according to first embodiment of the invention;
Fig. 5 b is the STRUCTURE DECOMPOSITION schematic representation according to the first embodiment of the present invention;
Fig. 5 c is the sectional drawing according to the structure of the first embodiment of the present invention;
Fig. 6 a is a structural representation according to a second embodiment of the present invention;
Fig. 6 b is the decomposing schematic representation of structure according to a second embodiment of the present invention;
Fig. 6 c is the sectional drawing of structure according to a second embodiment of the present invention;
Fig. 7 is the exploded view of the structure of a third embodiment in accordance with the invention.
20: connecting rod 21: big end footpath group
22: 23: the first link arms in big end footpath
24: the first joint 24a: connect projection
25: top end diameter group 26: top end diameter
28: the second link arm 28a: attachment hole
32: cylinder 32a: pressing chamber
34: piston 34a: closed chamber
36: piston sheet 38: eccentric angle
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of connecting rod, structure, feature and the effect thereof of the hermetic motor compressor that foundation the present invention is proposed, describe in detail as after.
The object of the present invention is achieved like this: a kind of connecting rod of hermetic motor compressor is characterized in that: comprise that big end directly organizes, it is by the big end footpath of the ring-type of the eccentric angle of inserting bent axle and directly form first link arm that a body extension forms etc. with above-mentioned big end and constitute; The top end diameter group, it by the top end diameter that links to each other with rotation mode with piston with forms second link arm that one and prolongation link to each other with first link arm that above-mentioned big end is directly organized etc. with above-mentioned top end diameter and constitutes; Attachment hole be connected projection, they are each positioned at corresponding position on above-mentioned first link arm and above-mentioned second link arm, help above-mentioned big end and directly organize and being connected of top end diameter group; Above-mentioned big end directly organize with the top end diameter group be to be made by unlike material, and by to running through above-mentioned attachment hole outstanding connection projection carry out stuff up a crack and link to each other.
Wherein, it is to be formed by aluminum material that above-mentioned big end is directly organized, and above-mentioned top end diameter group is to be made by the anti abrasive metal of relative ratio aluminum material.
Each front end of above-mentioned first link arm and second link arm forms with the curve form depression of above-mentioned top end diameter and big end outer surface correspondence directly and with above-mentioned top end diameter and big end outward edge directly and contacts.The front end of above-mentioned first link arm and second link arm constitutes with the shape of ladder and carries out combination; Above-mentioned connection projection and attachment hole are forming on the corresponding position on above-mentioned first joint and second joint.Form first joint and second joint that depression or outstanding shape combine in the middle of the front end of above-mentioned first link arm and second link arm, by inserting angle of attachment on the attachment hole of above-mentioned first and second joint and connect first joint and second joint running through.Above-mentioned first joint and above-mentioned second joint are the space and the protuberances of the hexahedral shape that combines.
The present invention of structure needn't process cylinder, piston and connecting rod separately for preventing the wearing and tearing that friction caused of above-mentioned top end diameter and piston according to having as mentioned above, thereby reduces its procedure and reduce its manufacturing cost.
With reference to the accompanying drawings the preferred embodiment according to the connecting rod of hermetic motor compressor of the present invention is elaborated.
Fig. 4 is the structural representation of the upper end portion of the hermetic motor compressor that adopted of first embodiment according to connecting rod of the present invention; Fig. 5 a, Fig. 5 b and Fig. 5 c are structural representation, exploded view and the sectional drawings of the first embodiment of the present invention.
As shown in the figure, the connecting rod 20 of embodiments of the invention is directly organized 21 by big end and is linked to each other with top end diameter group 25 and to form.Wherein, directly to organize 21 be to be made of big end footpath 22 and first link arm 23 to above-mentioned big end.And the inside formation ring-type in above-mentioned big end footpath 22, can insert the upper end off-centre that is positioned at bent axle and the eccentric angle 38 of establishing.Form towards a side direction on this big end footpath 22 and prolong above-mentioned first link arm 23 that forms.Above-mentioned first link arm 23 forms one with above-mentioned big end footpath 22, and the effect of above-mentioned first link arm 23 is by linking to each other with following second link arm 27 that will narrate above-mentioned big end footpath 22 to be connected on the following top end diameter 26 that will narrate.The front end of above-mentioned first link arm 23 forms first joint 24.Above-mentioned first joint, 24 to the first link arms, 23 its thickness relative thin promptly form ladder.Above-mentioned first joint 24 forms and connects projection 24a.The attachment hole 28a of formed second joint 28 of front end of second link arm 27 that will narrate below above-mentioned connection projection 24a inserts has the length of inserting above-mentioned attachment hole 28a and giving prominence to from the opposite side of attachment hole 28a.Thereby when above-mentioned connection projection 24a inserted above-mentioned attachment hole 28a, the front end of the above-mentioned connection projection of part 24a was outstanding from the opposite side of above-mentioned attachment hole 28a.This is in order to carry out stuff up a crack by the part of above-mentioned connection projection 24a, first joint 24 to be connected with second joint 28.
Above-mentioned top end diameter group 25 is made of the top end diameter 26 and second link arm 27.Here above-mentioned top end diameter 26 forms ring-type, and has the internal diameter at the piston angle 36 that can insert piston 34, connects with above-mentioned piston 34 by the closed chamber of above-mentioned piston angle 36 with the inboard formation of above-mentioned piston 34.This top end diameter 26 is rotated within the specific limits at the closed chamber 34a of above-mentioned piston 34, thereby can make above-mentioned piston 34 carry out the straight line back and forth movement along the pressing chamber 32a of cylinder 32.One side of this top end diameter 26 is with above-mentioned second link arm, 27 tab-like being integral.The front end of above-mentioned second link arm 27 has second joint 28 that can engage with first joint 24 of above-mentioned first link arm 23.Have after above-mentioned first joint 24 and second joint 28 are folded mutually with above-mentioned first link arm 23 or the identical thickness of second link arm 27.In order to allow above-mentioned second joint 28 and 24 combinations of above-mentioned first joint, on the position of the above-mentioned connection projection of correspondence 24a, form attachment hole 28a with corresponding diameter.Owing to after above-mentioned first joint 24 and 28 combinations of second joint, can not relatively move.Therefore can not move in conjunction with the above-mentioned big end footpath 22 and the top end diameter 26 that link to each other with second joint 28 by above-mentioned first joint 24.The structure of this first and second joint 24,28 can prevent that above-mentioned connecting rod 20 is compressed power or tension stress when converting rotatablely moving of bent axle the straight line back and forth movement of above-mentioned piston 34 to influence from axial moving and rotation being taken place.Constituting above-mentioned big end, directly to organize the material of 21 above-mentioned big end footpath 22 and first link arm 23 be aluminum alloy or the alloy (hereinafter to be referred as aluminum alloy) that contains aluminium.This is because the surperficial illumination of aluminum alloy is low thereby reduce friction with above-mentioned eccentric angle 38.But above-mentioned big end is directly organized the effect that 21 material can satisfy the aluminum alloy that uses in the present embodiment, needn't only use aluminum alloy.
Above-mentioned top end diameter group 25 is made by the metallic material bigger than aluminum alloy relative wear resistance.Thereby top end diameter 26 wear resistancies of making by sintering are more intense, and its intensity is similar with above-mentioned piston angle 36, thereby above-mentioned piston 34 is when carrying out the straight line back and forth movement, if with above-mentioned piston angle 36 friction takes place but the wearing and tearing meeting that takes place seldom.Thereby fail in time to supply machine oil between above-mentioned top end diameter 26 and the piston angle 36 and the wearing and tearing that take place seldom, so needn't increase structure to the top at above-mentioned piston angle 36 supply machine oil.So needn't process separately above-mentioned cylinder 32 and piston 34 and connecting rod 20 according to the present invention.
Then, with reference to Fig. 6 a and with reference to figure 6c the second embodiment of the present invention is described.The drawing symbol of the relevant connecting rod of present embodiment is a unit with 100, other the drawing symbol with reference to Fig. 4.
The connecting rod 120 of present embodiment, by big end directly organize 121 and top end diameter group 125 constitute.Wherein above-mentioned big end footpath 121 is made of big end footpath 122 and first link arm 124.And the inside formation ring-type in above-mentioned big end footpath 122, can insert the upper end off-centre that is positioned at bent axle and the eccentric angle 38 of establishing.Form towards a side direction on this big end footpath 122 and prolong above-mentioned first link arm 124 that forms.Above-mentioned first link arm 124 is with following second link arm, 128 combinations that will narrate, and then above-mentioned big end footpath 122 is linked to each other with the following top end diameter that will narrate 125.Above-mentioned first link arm, 124 1 distal process go out to form can link to each other with above-mentioned second link arm 128 be connected projection 124a.That is, above-mentioned connection projection 124a inserts the attachment hole 128a of above-mentioned second joint 128, to insert above-mentioned attachment hole 128a and to constitute from the outstanding length of the opposite side of attachment hole 128a.Therefore when above-mentioned connection projection 124a inserted above-mentioned attachment hole 128a, the part of the front portion of above-mentioned connection projection 124a was outstanding from the opposite side of above-mentioned attachment hole 128a.This is that projection by above-mentioned connection projection 124a carries out stuff up a crack and connects first link arm 124 and second link arm 128.When also having above-mentioned first link arm 124 to link to each other with second link arm 124, the front end of above-mentioned first link arm 124 is with the outer surface contact of above-mentioned top end diameter 126.The curved shape depression that the front end of above-mentioned for this reason first link arm 124 forms with the external diameter correspondence of above-mentioned top end diameter 126 forms.This be for above-mentioned first link arm 124 and second link arm 128 when carrying out being subjected to axial compressive force or tension force in the compression process, can prevent that above-mentioned first link arm 124 from moving to axial direction.
In addition, front end shape and the above-mentioned projection 124a by this first link arm 124 can prevent that above-mentioned first link arm is rotated under bonding state with above-mentioned second link arm 128.Promptly, above-mentioned first link arm 124 front end be connected the formed stage casing of projection 124a and be fixed on above-mentioned top end diameter group 125, in the several angle scope, move, when being compressed power, can prevent that above-mentioned first link arm 124 and second link arm 128 are converted into several angle.If 124 of above-mentioned first link arms are fixed on second link arm 128 by connecting projection 124a, be that above-mentioned first link arm 124 in center and second link arm 128 rotate to an angle in compression process and bend with the junction of above-mentioned connection projection 124a.
Above-mentioned top end diameter group 125 is made of the top end diameter 126 and second link arm 128.Here above-mentioned top end diameter 126 is that the ring-type with the internal diameter at the piston angle 36 that can insert piston 34 constitutes, and the closed chamber 34a that the inboard by above-mentioned piston angle 36 above-mentioned pistons 34 forms links to each other with above-mentioned piston 34.The mode that this top end diameter 126 is rotated in the closed chamber 34a of above-mentioned piston 34 several angle scope constitutes, and makes above-mentioned piston 34 carry out the straight line back and forth movement along the pressing chamber 32a of cylinder 32.One side of above-mentioned top end diameter 126 forms one with above-mentioned second link arm 128.Above-mentioned second link arm 128 forms with above-mentioned first link arm 124 is folded mutually.That is, the top formation of above-mentioned second link arm 128 can be with the plane of the bottom surface of above-mentioned first link arm 124 contact.The front end that also has above-mentioned second link arm 128 with above-mentioned first link arm 124 in conjunction with the time, form in order to form with the outer surface contact in above-mentioned big end footpath 122 with the corresponding curve shape depression in the outside in above-mentioned big end footpath 122.The structure of this second link arm 128 is mentioned in above-mentioned first link arm 124 of explanation, in conjunction with can convert the compressive force that is subjected in the straight line back and forth movement process of above-mentioned piston 34 or tension force to the time, can prevent that second link arm 128 from axially moving or rotation with above-mentioned first link arm 124 to rotatablely moving of above-mentioned bent axle.Also have on above-mentioned second link arm 128 and form with the corresponding attachment hole 128a of connection projection 124a on above-mentioned first link arm 124.Thereby insert above-mentioned attachment hole 128a by above-mentioned connection projection 124a and carry out stuff up a crack in conjunction with above-mentioned second link arm 128 and first link arm 124.
Above-mentioned big end is in the present embodiment directly organized 121 and is made by aluminum alloy, and above-mentioned top end diameter group 125 is formed by metal powder sintered.
Then, Fig. 7 illustrates a third embodiment in accordance with the invention.Relevant with connecting rod in the present embodiment symbol uses 200 units, and other is with reference to Fig. 4.Mainly illustrate for simplicity with the different part of above-mentioned embodiment.
Therefore, the connecting rod 220 of present embodiment, by big end directly organize 221 and top end diameter group 225 constitute.Wherein above-mentioned big end directly organizes 221, is made of big end footpath 222 and first link arm 223, and the front end of above-mentioned first link arm 223 forms first joint 224.Above-mentioned first joint 224 along the intermediate portion with the length direction of first link arm 223 form connecting groove 224 '.The hexahedral approximately space of above-mentioned connecting groove 224 ' formation.Each forms from the bi-side of above-mentioned first link arm 223 attachment hole 224a with above-mentioned connecting groove 224 ' communicate above-mentioned first joint 224.
Above-mentioned top end diameter group 225 is made of the top end diameter 226 and second link arm 227, and the front end of above-mentioned second link arm 227 forms second joint 228.Above-mentioned second link arm 227 is outstanding forming in the middle of the front end at above-mentioned second link arm 227, form with above-mentioned connecting groove 224 ' the inner face corresponding shape.That is, above-mentioned second joint 228 forms about hexahedral shape.Above-mentioned second joint 228 laterally runs through formation attachment hole 228a.In addition, connect above-mentioned big end by angle of attachment 229 and directly organize 221 first joint 224 and second joint 228 of top end diameter group 225.Above-mentioned angle of attachment 229 is by inserting above-mentioned attachment hole 224a, and 228a connects first joint 224 and second joint 228.Above-mentioned angle of attachment 229 can be pressed into above-mentioned attachment hole 224a, and 228a maybe can insert bolt etc.Only use an above-mentioned angle of attachment 229 in the present invention, can use several but use number not limit to it.Thereby above-mentioned attachment hole 224a, 228a also can form several.
Below, the effect of the connecting rod of encapsulation compressor according to the present invention is elaborated.Be that benchmark describes for simplicity with the second embodiment of the present invention.
At first, the assembling process to connecting rod 120 according to the present invention describes.Above-mentioned big end is directly organized the attachment hole 128a that 121 connection projection 124a inserts top end diameter group 125.The part front end of above-mentioned connection projection 124a spills from above-mentioned attachment hole 128a after inserting.Also have above-mentioned big end directly to organize of the top end diameter 126 outer surfaces contact of the front end of 121 first link arm 124 with above-mentioned top end diameter group 125.The front end of the second link arm 128a of above-mentioned in addition top end diameter 125 is directly organized 121 directly 122 outer surface contact of big end with above-mentioned big end.At this moment by the front end that runs through the outstanding connection projection 124a of above-mentioned second link arm 128 is carried out stuff up a crack, so fixing and prevent that above-mentioned connection projection 124a breaks away from from above-mentioned attachment hole 128a.Connect projection 124a through as above step and be fixed on attachment hole 128a, and finish the connection procedure of above-mentioned first link arm 124 and second link arm 128.To be connected to the eccentric angle 38 of piston 34 and bent axle through the connecting rod 120 of process making as mentioned above separately.Start compressor afterwards, eccentric angle 38 was carried out big end footpath 122 rotations of circular movement and drivening rod 120 when the interaction bent axle by fixed terminal and gyrator was rotated on bent axle.Here connect the big end footpath 122 of connecting rod 120 on the eccentric angle 38, connecting top end diameter 126 on the piston 34.Also have above-mentioned big end footpath 122 and top end diameter 126 to connect by first and second link arm 124,128.Thereby along with the circular movement of above-mentioned eccentric angle 38, piston 34 is driven by connecting rod 120 and carries out the straight line back and forth movement.
Because concave end before each of above-mentioned first and second link arm 124,128 that connects with big end footpath 122 and top end diameter 126, thereby when sending the rotating force of above-mentioned bent axle to piston 34 can not rotate or axially moves outputting power that can be stable.
Also have the inward flange of above-mentioned top end diameter 126 to form the structure of uninterrupted supply machine oil.But top end diameter 126 is rare wearing and tearing between the piston angle 36 that oversintering forms thereby above-mentioned top end diameter 126 inserts together as mentioned above, thereby need not uninterruptedly to supply machine oil, and the wearing and tearing of above-mentioned top end diameter 126 can not become problem.
Above embodiment is only unrestricted in order to explanation the present invention, although the present invention is had been described in detail with reference to above preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment, be out of shape the present invention or be equal to replacement, and not breaking away from the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Such as, the structure of the top end diameter of in succession in the figure illustrated embodiment connecting rod and piston is circular, it is not limited can be spherical connection shape.Also have, among first and second embodiment above-mentioned attachment hole be connected projection can transposition and establish.
Claims (7)
1, a kind of connecting rod of hermetic motor compressor is characterized in that:
Comprise that big end directly organizes, it is made of the big end footpath and first link arm, and wherein big end directly forms ring-type and inserts the eccentric angle of bent axle, and first link arm directly forms one with above-mentioned big end and prolongation forms;
The top end diameter group, it forms one and prolongs by the top end diameter that links to each other with the piston rotation mode with above-mentioned top end diameter, and and second link arm formation of the first link arm combination in above-mentioned big end footpath;
Attachment hole be connected projection, directly organize with the top end diameter group and be provided with for connecting above-mentioned big end, be positioned at corresponding position on above-mentioned first link arm and second link arm;
Above-mentioned big end directly organize with the top end diameter group be to be made by unlike material, link to each other by the connection projection that runs through above-mentioned attachment hole being carried out stuff up a crack.
2, the connecting rod of a kind of hermetic motor compressor according to claim 1 is characterized in that it is to be made by aluminum alloy material that wherein said big end is directly organized.
3, the connecting rod of a kind of hermetic motor compressor according to claim 2 is characterized in that wherein said top end diameter group is to be formed through oversintering by the metal stronger than aluminum alloy wear resistance.
4, according to the connecting rod of any described a kind of hermetic motor compressor in the claim 1 to 3, each front end that it is characterized in that wherein said first link arm and second link arm forms with above-mentioned top end diameter and the corresponding curved-surface shape depression of big end outer surface directly, and contacts with above-mentioned top end diameter and big end outer surface directly.
5, according to the connecting rod of any described a kind of hermetic motor compressor in the claim 1 to 3, it is stepped to it is characterized in that each first joint that forms of front end of wherein said first link arm and second link arm and second joint form, and corresponding position forms above-mentioned projection and the attachment hole of being connected on above-mentioned first joint and second joint.
6, according to the connecting rod of any described a kind of hermetic motor compressor in the claim 1 to 3, it is characterized in that forming with depression or first joint and second joint outstanding and that be harmonious in the middle of the front end of wherein said first link arm and second link arm, by inserting angle of attachment on the attachment hole of above-mentioned first and second joint first joint is connected with second joint running through.
7, the connecting rod of a kind of hermetic motor compressor according to claim 6 is characterized in that wherein said first joint and second joint are the space and the protuberances of the hexahedral shape that is harmonious.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100841031A CN100540898C (en) | 2005-07-08 | 2005-07-08 | The connecting rod of hermetic motor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100841031A CN100540898C (en) | 2005-07-08 | 2005-07-08 | The connecting rod of hermetic motor compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1892033A CN1892033A (en) | 2007-01-10 |
| CN100540898C true CN100540898C (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100841031A Expired - Fee Related CN100540898C (en) | 2005-07-08 | 2005-07-08 | The connecting rod of hermetic motor compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100540898C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777349B (en) * | 2012-06-20 | 2015-02-25 | 杭州海胜制冷设备有限公司 | Sealing type single-drive multi-cylinder refrigerating compressor |
| CN117167237B (en) * | 2023-09-20 | 2024-04-16 | 广州万宝集团压缩机有限公司 | Motion mechanism, compressor and refrigeration equipment |
-
2005
- 2005-07-08 CN CNB2005100841031A patent/CN100540898C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1892033A (en) | 2007-01-10 |
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