CN100535437C - Sealed type compressor and method of manufacture thereof, and freezing and refrigerating plant - Google Patents
Sealed type compressor and method of manufacture thereof, and freezing and refrigerating plant Download PDFInfo
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- CN100535437C CN100535437C CNB2006100064390A CN200610006439A CN100535437C CN 100535437 C CN100535437 C CN 100535437C CN B2006100064390 A CNB2006100064390 A CN B2006100064390A CN 200610006439 A CN200610006439 A CN 200610006439A CN 100535437 C CN100535437 C CN 100535437C
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- ball seat
- crankshaft
- reserve tank
- fuel reserve
- oil supply
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Abstract
The closed compressor includes a crankshaft to transfer the rotation force from the motor; a piston with spherical seat configured beside the crankshaft; a link rod with spherical part on one end, ring part embedded in the crankshaft on the other end and rod part in between; and lubricating oil stored inside a closed container and provided through the crankshaft. The closed compressor has one first oil supplying hole set on the crankshaft, one second oil supplying hole set on the link rod to supply the lubricating oil from the first oil supplying hole to the spherical seat, and one oil storing tank set between the spherical seat and the sphere for storing lubricating from the second oil supplying hole temporarily. The closed compressor has structure good for lowering cost, high efficiency and high reliability.
Description
Technical field
The present invention relates to hermetic type compressor and manufacture method thereof and refrigeration, refrigerating plant, particularly be applicable to the device of the hermetic type compressor that the spheroid portion that is arranged on the connecting rod is connected with ball seat on being arranged on piston.And refrigeration of the present invention, refrigerating plant comprise refrigerating box, household freezer, fridge-freezer and showcase etc.
Background technique
Opening the hermetic type compressor shown in the 2003-184751 communique (patent documentation 1) the Japanese documentation spy is exactly this example in the past.To Figure 28 this hermetic type compressor is described with reference to Figure 26.Figure 26 is the longitudinal section of hermetic type compressor in the past, and Figure 27 is illustrated in the connecting rod that uses among Figure 26 and the marriage relation figure of piston, and Figure 28 is the schematic representation that is illustrated in the relation of the connecting rod of combination among Figure 27 and piston.
The general hermetic type compressor that uses in freeze cycle contains motor 22 and compression mechanical part 23 in seal container 21.And this compression mechanical part 23 has the crankshaft 26 that rotates by the upper end off-centre of the axle 25 of 24 supports of support.And in cylinder 27, the piston 28 that reciprocatingly slides links to each other with crankshaft 26 by connecting rod 29.By the lubricant oil that the upper opening from crankshaft 26 disperses out, lubricate this piston 28 and the slide part of cylinder 27 and the slide part of connecting rod 29 and piston 28 as arrow P.
Especially, in patent documentation 1,, in spheroid portion 31, formed planar surface portion 31a, made and to accept the lubricant oil that disperses out as direction of arrow P in order easily lubricant oil to be imported between ball seat 34 and the spheroid portion 31.That is, connecting rod 29 is made of annulus 32, bar portion 33 and spheroid portion 31, and the planar surface portion 31a of the lubricant oil SDeflector body 31 that will accept in bar portion 33 is from 34 ones of this planar surface portion 31a guiding ball seats.And ball seat 34 and spheroid portion 31 are that the rotation motion with crankshaft 26 changes reciprocating ball-and-socket joint bindiny mechanism into.
Patent documentation 1: the spy opens the 2003-184751 communique
In patent documentation 1, disperse and the lubricant oil that obtains because depend on from the front end of axle 25 to the fuel feeding of ball seat 34 and the lubricant oil of the slide part of spheroid portion 31, for example, under rotating speed in the degradation, might can not successfully enter into ball-and-socket joint portion by lubricant oil, so in this case, will on this slide part, produce oil film and cut off, cause the problem of sintered balls body 31 grades.
And, come the ball seat 34 of machining piston 28 by the precision machining device, utilize Figure 29 that its processing method is described.
As shown in figure 29, on ball seat 34, formed the opening portion 34a of path.By free coupling 37, the axle 38a of clamp for machining 38 is connected on the main shaft 36 of precision machining device, is provided with spherical cutlery 38b at the front end of this 38a.This spherical cutlery 38b is based on the rotation of main shaft 36 and high speed rotating, will be worked into preliminary dimension as the ball seat 34 of the piston 28 of machined object.
The external diameter of this spherical cutlery 38b is littler than the internal diameter of ball seat 34, has the external diameter of the size of a certain degree.In other words, the peripheral velocity of the diameter D1 (the thickest portion) of spherical cutlery 38b is different with near the peripheral velocity of the central part of spherical cutlery 38b (A portion), processing part with the thickest portion (B portion) processing part and with (A portion) near the central part, the fine finishing precision height of (B portion) is low with (A portion) processing part precision.
This be because: when processing ball seat 23 with spherical cutlery 38b, if the center 34b with ball seat 34 is a benchmark, then the part of the processing of (the A portion) by spherical cutlery 38b becomes the size of plus tolerance, because the peripheral velocity difference was carried out processing, becomes negative common difference with the part of (B portion) processing.
And, processing have an opening portion 34a following when digging the ball seat 34 of portion, utilize free coupling 37 that a 38a is bent to as the dotted line place, or make it to move to process and dig portion under described as the piston side of machined object.
That is, the processing method of the ball seat 34 of piston 28 is: spherical cutlery 38b is installed on the rotatingshaft 36 of precise machining device, processes ball seat 34 by this spherical cutlery 38b is rotated.Therefore, by between rotatingshaft 36 and spherical cutlery 38b, accompanying free coupling, spherical cutlery 38b is tilted to as the dotted line place of Figure 29 and ball seat 34 is carried out fine finishing or its shape along one-tenth to be processed is moved in piston side, process ball seat.
For example shown in Figure 29 because form from this spherical cutlery 38b of top view oval-shaped spherical, so in the central authorities of spherical cutlery 38b and the periphery of spherical cutlery 38b, the peripheral velocity that adds man-hour is only in the different part difference of diameter.Therefore, very high with the fine finishing precision of the part of the fast place processing of peripheral velocity in described any processing method, low with the fine finishing precision of the part of the different place processing of peripheral velocity.In other words, away from the fine finishing precision height of the position at ball seat center, but compare near the fine finishing precision in the place at center not high with other parts.To this face fine finishing, if accepted the spheroid portion 31 of connecting rod side in the low place of machining accuracy, then worry can be because friction cause damage can for spheroid portion 31 or ball seat 34, and becomes the reason that produces abnormal sound etc.
In addition, in the running of the reality of hermetic type compressor, also has problem as follows.
Connecting rod 29 is by spheroid portion 31, the annulus 32 that links to each other with crankshaft 26 as axle 25 eccentric part, and bar portion (connecting rod) 33 formations at two ends fixedly connected 31,32.On piston 28, be provided with the ball seat 34 of the spheroid portion 31 of chimeric connecting rod 29, be fixedly connected at bar portion 33 in the spheroid portion 31 be connected to make its relatively ball seat 34 freely swing.In the inboard of ball seat 34, has processing for convenience and the recess 35 of setting.
And, be accompanied by the to-and-fro motion of piston 28, carry out swing movement in order to make connecting rod 29, as shown in figure 30, the ball-and-socket joint portion that connects piston 28 and connecting rod 29 has the structure that is provided with tiny gap e.Promptly, if the size of the external diameter of the internal diameter of ball seat 34 and spheroid portion 31 is identical, then because ball seat 34 and spheroid portion 31 are slided, so the diameter d of the outer surface of the diameter D of the internal surface of the middle expression of formula below (1) ball seat 34 and spheroid portion 31 and the relation between the e of gap.
D＝d+2e …(1)
From the oily supply hole of opening on eccentric part 26 lubricant oil that disperses, lubricant oil is provided to inlet side between spheroid portion 31 and the ball seat 34, on the e of gap, formed lubricating film.
In hermetic type compressor in the past, when the air-breathing operation of compression operation, spheroid portion 31 is moved to the inlet side (with reference to Figure 31) of gap e, and when the compression section of compression operation, spheroid portion 31 is moved to the inboard (with reference to Figure 32) of gap e.When this compression section, owing to will be compressed into high pressure in the cylinder 27, spheroid portion 31 is by the powerful inboard that is pressed into ball seat 34, thus, the bight of recess 35 that is formed on the inboard of ball seat 34 contacts with the ectosphere face of spheroid portion 31, is applied with great contact stress in this contact segment.Judged such problem that gets thus: produce abnormal wears at this contact slide part upper ball base 34 and spheroid portion 31, the reliability of compressor obviously reduces.
Summary of the invention
The object of the present invention is to provide good hermetic type compressor of a kind of reliability and manufacture method thereof and refrigeration, refrigerating plant, it can reduce the contact stress of the spheroid portion of the ball seat of piston and connecting rod.
And, if the relevance of the recess 35 of forethought ball seat and oil feeding mechanism not, in patent documentation 1 and just indeterminate to the relation of the supply of the lubricant oil of the portion of shaking between ball seat-spheroid portion.
Another object of the present invention is to provide to be had the favourable structure of cost, efficient height and the good hermetic type compressor of reliability.And, other purpose and advantage can be clear and definite from following record of the present invention.
In order to reach above-mentioned purpose, hermetic type compressor of the present invention comprises: crankshaft, transmit the rotating force from motor; Piston is equipped with the ball seat with sphere portion in the crankshaft side; Connecting rod, it has the chimeric annulus of spheroid portion that an end is connected with described ball seat, the other end and described crankshaft, be connected the bar portion of this annulus and described spheroid portion; And be stored in lubricant oil in the seal container, provide described lubricant oil by described crankshaft, wherein, because first oil supply hole is set on described crankshaft, second oil supply hole that the lubricant oil that will come out from described first oil supply hole offers described ball seat is set on described connecting rod, the fuel reserve tank of the lubricant oil that temporary transient storage comes out from described second oil supply hole is set between described ball seat and described spheroid portion, the fuel reserve tank that will be provided with between described ball seat and described spheroid portion utilizes the some of described crankshaft or described annulus and forms second fuel reserve tank according to the mode that comprises described first oil supply hole as first fuel reserve tank.
The preferred concrete structure example of this invention is as described below:
(1) forms described fuel reserve tank by the recess that on described ball seat, is provided with.
(2) in described (1), be provided with the opening of described fuel reserve tank bigger than the aperture of described second oil supply hole.
(3) fuel reserve tank that will be provided with between described ball seat and described spheroid portion is as first fuel reserve tank, and any one that utilize described crankshaft or described annulus forms described second fuel reserve tank, makes to comprise described first oil supply hole.
(4) in described (3), in the wall thickness of described crankshaft, form described second fuel reserve tank.
On the outer surface of the described spheroid portion of (5) in described ball seat, sliding the oil supply that is communicated with described fuel reserve tank is set.
(6) in described (5), constitute in the following manner, that is, be accompanied by the motion of described piston and described connecting rod, described oil supply is communicated with described fuel reserve tank and described ball seat outside off and on.
(7) in described (5) or (6), the position of formation relation is that described oil supply is communicated with described fuel reserve tank, removes this connection in the gas compression operation.
When (8) the spheroid portion of connecting rod slides, on ball seat, form the concavity fuel reserve tank in discontiguous mode in the sphere portion of the piston side ball seat of being processed by the central part of spheroid cutlery.
And in order to reach above-mentioned purpose, the hermetic type compressor of second mode of the present invention comprises: crankshaft, the rotating force of transmission motor; Piston is configured to to-and-fro motion in cylinder, and is equipped with the ball seat with endosphere face in the crankshaft side; Connecting rod, the one end has spheroid portion, and the other end has the annulus that is entrenched on the described crankshaft, it is facial and be connected with described ball seat that described spheroid portion has the ectosphere of the diameter also littler than the diameter of the endosphere face of described ball seat, wherein, the inboard part at described ball seat has formed than the facial expansion face that enlarges of described endosphere.
The preferred concrete structure example of second mode of this invention is as described below:
(1) have at the inboard central part of described ball seat and be used to recess that the facial machining tool of endosphere is withdrawed from, described expansion face spreaded all on the full week in the outside that is formed on described recess.
(2) on described expansion face, has the conical surface that tangentially enlarges from the arc surface of described endosphere face.
In addition, the hermetic type compressor of Third Way of the present invention comprises: crankshaft, the rotating force of transmission motor; Piston is configured to to-and-fro motion in cylinder, and is equipped with the ball seat with endosphere face in the crankshaft side; Connecting rod, the one end has spheroid portion, and the other end has the annulus that is entrenched on the described crankshaft, it is facial and be connected with described ball seat that described spheroid portion has the ectosphere of the diameter also littler than the diameter of the endosphere face of described ball seat, wherein, partly formed than what described ectosphere face dwindled in the forward end of described spheroid portion and dwindled face.
The preferred concrete structure example of the Third Way of this invention is as described below:
(1) have at the inboard central part of described ball seat and be used to recess that the facial machining tool of endosphere is withdrawed from, the described face that dwindles is formed on the position relative with the part in the described recess and the outside thereof.
(2) sphere by the curvature littler than the facial curvature of described ectosphere forms the described face that dwindles.
In addition, cubic formula of the present invention has been to use refrigeration, the refrigerating plant of described mode and any one hermetic type compressor of preferred structure example thereof.
In addition, the 5th mode of the present invention provides a kind of manufacture method of hermetic type compressor, and described hermetic type compressor comprises: crankshaft, the rotating force of transmission motor; Piston is furnished with the ball seat with endosphere face in the crankshaft side; Connecting rod, ectosphere face with diameter littler than the diameter of the endosphere face of described ball seat, wherein, in described piston, processed after the recess of the facial inboard with this endosphere face of described endosphere, under the state that makes the common rotation of described piston and machining tool, described machining tool is pressed into the inboard of described endosphere face, forms than the facial expansion face that enlarges of described endosphere in the inboard part of described ball seat.
According to the present invention, because lubricant oil is directly offered fuel reserve tank by oil supply hole, can be with the slide part between the ball seat of the spheroid portion of the oil lubrication connecting rod side in the fuel reserve tank and piston side, can prevent because oil film cuts off and the sintering slide part, so can obtain the good hermetic type compressor of reliability.In addition, because there is no need to provide lubricant oil, so can obtain high efficiency hermetic compressor with the structure favourable to cost to this slide part with special parts.
In addition, according to preferred structure example of the present invention (1), because constitute fuel reserve tank, so can form fuel reserve tank simply by the recess that on ball seat, is provided with.
In addition, according to preferred structure example of the present invention (2), because be provided with the opening of fuel reserve tank bigger than the aperture of second oil supply hole, when so the spheroid portion of connecting rod side slides in the ball seat of piston side, enlarge with the surface of contact of lubricant oil in the fuel reserve tank, further improved supply to the lubricant oil of slide part.
In addition, according to preferred structure example of the present invention (3), because the fuel reserve tank that will be provided with between ball seat and spheroid portion is as first fuel reserve tank, any that utilize crankshaft or annulus forms second fuel reserve tank, and make it comprise first oil supply hole, so carrying out when crankshaft rotates a circle and is communicated with once second oil supply hole lubricant oil is provided, can providing sufficient lubricating oil by second oil supply hole to first fuel reserve tank from second fuel reserve tank.
In addition, according to preferred structure example of the present invention (4), because in the wall thickness of crankshaft, form second fuel reserve tank, so first oil supply hole that is arranged on the crankshaft is added man-hour, because also can process second fuel reserve tank simultaneously, so the productivity height, and because do not use special parts, so favourable to cost of production yet.
In addition, according to preferred structure example of the present invention (5), the oil supply that is communicated with fuel reserve tank is set on the outer surface of the spheroid portion of sliding in ball seat,, cuts off so can further prevent oil film reliably because provide lubricant oil to the slide part of ball seat and spheroid portion by oil supply.
In addition, according to preferred structure example of the present invention (6), the mode that is communicated with fuel reserve tank and ball seat outside with motion, the oil supply that is accompanied by piston and connecting rod off and on constitutes, so the lubricant oil that is stored in the fuel reserve tank can be discharged to the outside bit by bit, replace fresh lubricant oil, also can improve sliding capability from this point.
In addition, according to preferred structure example of the present invention (7), the position relation of oil supply and fuel reserve tank is that the gas inhalation process at piston is connected, removes this connection in the gas compression operation, because when applying the compression section of load, can provide lubricant oil to the slide part of ball seat and spheroid portion, but be difficult to the structure of extracting so can form the lubricant oil of easy replacement goal socket and spigot joint head, can improve reliability significantly.
In addition, according to preferred structure example of the present invention (8), when the spheroid portion of connecting rod slides in the sphere portion of the piston side ball seat of being processed by the central part of spheroid cutlery, because on ball seat, form the concavity fuel reserve tank in discontiguous mode, so, can not cause damage to ball seat or spheroid portion by the slip of ball seat and spheroid portion.
And, according to of the present invention second to the structure shown in the cubic formula, can reduce the contact stress of the spheroid portion of the ball seat of piston and connecting rod, good hermetic type compressor of reliability and manufacture method thereof and refrigeration, refrigerating plant can be provided.
Description of drawings
Fig. 1 is an embodiment's the longitudinal section of the hermetic type compressor of expression first mode of execution of the present invention.
Fig. 2 is the longitudinal section of shape of the piston of presentation graphs 1.
Fig. 3 is piston is observed in expression from the direction of arrow of Fig. 2 a side view.
Fig. 4 is the side cross-sectional view that an example of the connecting rod of Fig. 1 and crankshaft has been made up in expression.
Fig. 5 is the schematic representation of initial operation of the assembling method of the piston of presentation graphs 1 and connecting rod.
Fig. 6 is the A-A sectional view of Fig. 5.
Fig. 7 is the schematic representation of the next process of presentation graphs 5.
Fig. 8 is the B-B sectional view of Fig. 7.
Fig. 9 is the longitudinal section of expression to the fuel supply method of the ball-and-socket joint portion fuel feeding of Fig. 1.
Figure 10 is illustrated in the schematic representation that begins before the ball-and-socket joint portion fuel feeding of Fig. 1.
Figure 11 is the schematic representation of expression to the variation of the oil feeding mechanism of the ball-and-socket joint portion fuel feeding of Fig. 1.
Figure 12 is that the schematic representation to the moment of the fuel feeding of the ball-and-socket joint portion of Fig. 1 is finished in expression.
Figure 13 is illustrated in the schematic representation that oil supply is set on the spheroid portion outer surface of connecting rod of Fig. 1.
Figure 14 is the C-C cross section enlarged view of Figure 13.
Figure 15 is that expression comprises first oil supply hole on the crankshaft that is arranged on Fig. 1 and the schematic representation of second fuel reserve tank (oil pocket) portion that is provided with.
Figure 16 is the D-D amplification sectional view of Figure 15.
Figure 17 is first embodiment's of the second mode of execution of the present invention longitudinal section of reciprocating and sealing type compressor.
Figure 18 is the cross-sectional plan view of a part of the compression mechanical part of expression Figure 17.
Figure 19 is the sectional view at the piston of the compression mechanical part use of Figure 17.
Figure 20 is the planimetric map at the connecting rod of the compression mechanical part use of Figure 17.
Figure 21 is the sectional view of the ball-and-socket joint portion of Figure 17.
Figure 22 is the A portion enlarged view of Figure 21.
Figure 23 is the sectional view of processing method of the ball-and-socket joint portion of expression Figure 21.
Figure 24 is second embodiment's of the second mode of execution of the present invention longitudinal section of ball-and-socket joint portion of reciprocating and sealing type compressor.
Figure 25 is the sectional view of the spheroid portion of the connecting rod that uses in Figure 24.
Figure 26 is the longitudinal section of hermetic type compressor in the past.
Figure 27 is the schematic representation that is illustrated in the marriage relation of the connecting rod that uses among Figure 26 and piston.
Figure 28 is the schematic representation that is illustrated in the relation of the connecting rod of combination among Figure 27 and piston.
Figure 29 is the schematic representation of processing method that expression is formed on the ball seat of piston side.
Figure 30 is the enlarged view of ball-and-socket joint portion.
Cross section ideograph when Figure 31 is the inhalation process of ball-and-socket joint portion.
Cross section ideograph when Figure 32 is the compression section of ball-and-socket joint portion.
Among the figure:
The 1-seal container, 2-motor, 3-compression mechanical part, 4-support, 5-axle, the 6-crankshaft, 6a-hole, 7-cylinder, 8-piston, 8a-ball seat, the 8b-opening portion, 8c-hole, 8d-insertion groove, 8e-bottom, 9-connecting rod, 10-bar portion, 11-spheroid portion, 11a-plane transverse portion, 12-annulus, the 12a-end face, 13-ball-and-socket joint portion, 14-space, the 16-second fuel reserve tank portion, 17-the 3rd oil groove, 18-second oil supply hole, 19-first oil supply hole, 20-fuel reserve tank.
Embodiment
(first mode of execution)
Describe the present invention in detail with an illustrated embodiment.
At first, Fig. 1 is described to Fig. 4.Fig. 1 is an embodiment's of an expression hermetic type compressor of the present invention longitudinal section, Fig. 2 is the longitudinal section of shape of the piston of presentation graphs 1, Fig. 3 is the side view of expression from the direction of arrow observation piston of Fig. 2, and Fig. 4 is the side cross-sectional view that connecting rod with the example of axle crankshaft of Fig. 1 have been made up in expression.
As shown in Figure 1, hermetic type compressor is provided with motor 2 and compression mechanical part 3 in the inside of seal container 1.Support 4 supports motor 2, compression mechanical part 3 in seal container 1.Axle 5 is supported by the support 4 of fixed motor 2 rotors.Be provided with crankshaft 6 in the upper end of axle 5.For cylinder 7,, between crankshaft 6 and piston 8, be provided with connecting rod 9 for driven plunger 8.
And, generally be that the form in the ball-and-socket joint mode is connected between this piston 8 and the connecting rod 9.That is, on the ball seat 8a of piston 8 sides, can be free to slide the spheroid portion 11 of the chimeric connecting rod 9 in ground.And this connecting rod 9 comprises bar portion 10, be fixedly connected on the spheroid portion 11 of an end of bar portion 10, be fixedly connected on the annulus 12 the other end and that crankshaft 6 slides of bar portion 10.
Such as described, the hermetic type compressor that is used for freeze cycle is accommodated motor 2 and compression mechanical part 3 in seal container 1.
This compression mechanical part 3 is formed on the upper end of the axle 5 that is supported by support 4.Compression mechanical part 3 is made of following part: the crankshaft 6 of eccentric rotation, pistons reciprocating 8, the annulus 12 that links to each other with crankshaft 6 and the connecting rod 9 fixed with spheroid portion 11 one that bar portion 10 will link to each other with piston 8 cylinder 7 in.
And, as shown in Figure 1, be connected connecting rod 9 and piston 8 by the ball-and-socket joint mode that the spheroid portion 11 and the ball seat 8a of piston 8 are combined.
As shown in Figures 2 and 3, on piston 8, be provided with the ball seat 8a of the spheroid portion 11 of accommodating connecting rod 9.In addition, be provided with hole 8c on piston 8, described hole 8c expands the piston end surface side to and is umbrella from the opening portion 8b (Fig. 3) that compares with ball seat 8a internal diameter with the arbitrary dimension path.And the insertion groove 8d that becomes the insertion mouth that inserts spheroid portion 11 is configured to its bottom 8e and extends to position on the elongation line at sphere diameter center of ball seat 8a, and with respect to the center line Y-Y symmetry of piston 8.
As shown in Figure 4, connecting rod 9 joins annulus 12 to the other end of bar portion 10 by welding an end that spheroid portion 11 is bonded on bar portion 10.Spheroid portion 11 has the 11a of plane transverse portion that has removed a certain scope of above-below direction from the sphere shown in the dotted line of Fig. 4.The 11a of this plane transverse portion forms parallel with the end face 12a of annulus 12, and promptly top and bottom form parallel.Though the 11a of this plane transverse portion need not must be parallel, consider from the formation of the opening portion 8b of piston 8 or the intensity aspect of connecting rod 9, preferably form parallel.
Second oil supply hole 18 is set on the axle core of connecting rod 9, and first oil supply hole 19 is set on the crankshaft 6.This first oil supply hole 19 and second oil supply hole 18 are when crankshaft 6 rotations, and the place of two hole unanimities is connected, and the lubricant oil that comes that rises in crankshaft 6 is provided to connecting rod 9 sides.And, offer the lubricant oil of connecting rod 9 by first oil supply hole 19, by second oil supply hole 18, be provided in the fuel reserve tank 20.Thus, because lubricant oil is almost offered fuel reserve tank 20 forcibly in order, so new lubricant oil is sent between spheroid portion 11 and the ball seat 8a through fuel reserve tank 20.
Certainly, because the gap between spheroid portion 11 and the ball seat 8a has only very little 2～5 microns, so though the amount of the lubricant oil that is sent seldom, also can satisfy the amount of the necessity when both slide.That is, described gap can not cut off oil film and be protected by oil film always.
In addition, to providing of the lubricant oil of this fuel reserve tank 20, even when the low speed rotation of the variable nearest hermetic type compressor of rotating speed, also can satisfy.
And, the lubricant oil that blows out by upper opening from crankshaft 6, also can with in the past equally come lubricate compressors structure 3, and spheroid portion 11 and ball seat 8a between.Can lubricate 13 ones in portion of cooled compressed mechanism 3 and ball-and-socket joint portion reliably thus.
Then Fig. 5 is described to Fig. 8.Fig. 5 is the sectional view of initial operation of the assembling method of the piston of presentation graphs 1 and connecting rod, and Fig. 6 is the A-A sectional view of Fig. 5, and Fig. 7 is the sectional view of the next process of presentation graphs 5, and Fig. 8 is the B-B sectional view of Fig. 7.These figure have represented the assembling method of piston 8 with the ball-and-socket joint portion 13 of connecting rod 9.And Fig. 5 and Fig. 7 are expressions: the actual direction of using annulus 12 in the inside of hermetic type compressor is inclined under the state (making the state of annulus 12 in fore-and-aft tilt) of approximate right angle the sectional view of the ball-and-socket joint portion 13 when connecting rod 9 is inserted piston 8.
At first, as shown in Figure 6, with the 11a of the plane transverse portion contraposition of the insertion groove 8d and the connecting rod 9 of piston 8, as shown in Figure 5, be inserted into spheroid portion 11 in the insertion groove 8d after, spheroid portion 11 closely is connected with ball seat 8a.That is, spheroid portion 11 is put into the following portion (umbrella hole 8c) of digging of ball seat 8a.
And, as shown in Figures 7 and 8, roughly meet at right angles by making piston 8 and connecting rod 9 rotations, because spheroid portion 11 can not extract with being connected (digging portion under utilizing) of opening portion 8b littler than its diameter, finished ball-and-socket joint portion 13.Between the 11a of plane transverse portion of the insertion groove 8d of piston 8 and spheroid 11, form space 14, exposed the part of ball seat 8a.
Describe to Figure 15 for Fig. 9 then.Fig. 9 is the longitudinal section of expression to the fuel supply method of the ball-and-socket joint portion fuel feeding of Fig. 1, Figure 10 is illustrated in the fuel feeding schematic representation before that begins the ball-and-socket joint portion of Fig. 1, Figure 11 is the schematic representation of expression to the variation of the oil feeding mechanism of the ball-and-socket joint portion fuel feeding of Fig. 1, Figure 12 is that the schematic representation to the moment of the fuel feeding of the ball-and-socket joint portion of Fig. 1 is finished in expression, Figure 13 is illustrated in the schematic representation that oil supply is set on the spheroid portion outer surface of connecting rod of Fig. 1, Figure 14 is the C-C cross section enlarged view of Figure 13, Figure 15 is that expression comprises first oil supply hole on the crankshaft that is arranged on Fig. 1 and the schematic representation of the second fuel reserve tank portion that is provided with, and Figure 16 is the D-D amplification sectional view of Figure 15.
Under the state of packing into of hermetic type compressor shown in Figure 9, the lubricant oil that disperses from the front end of crankshaft 6 is provided for the lubricated of ball seat 8a shown in arrow P, can guarantee the slip reliability of ball-and-socket joint portion 13.That is, by axle 5 and by being arranged on the hole 6a of crankshaft 6 inside, the lubricant oil that draws up from oil sump disperses from the front end of crankshaft 6.The part of the lubricant oil that disperses flows to the inboard of piston 8 along the bar portion 10 of connecting rod 9.The lubricant oil of inboard that flows to piston 8 is along the hole 8c of piston 8, flows into the space 14 that the 11a of plane transverse portion by insertion groove 8d and spheroid 11 forms.And in the present embodiment, the lubricant oil that disperses arrives the space that forms by the ball seat 8a in space 14 and the 11a of plane transverse portion, provides lubricant oil to ball seat 8a.
In the present embodiment, to the fuel feeding of ball-and-socket joint portion 13 except above-mentioned upper end from crankshaft 6 disperse, also have the three kinds of following methods that directly ball-and-socket joint portion 13 provided lubricant oil forcibly.
At first, first method is to offer ball-and-socket joint portion 13 by the lubricant oil that the spiral chute in the axle 5 etc. will rise to crankshaft 6.
This method as shown in Figure 9, first oil supply hole 19 is set on crankshaft 6, and second oil supply hole 18 is set on connecting rod 9, in the process that crankshaft 6 rotates a circle, when second oil supply hole 18 of connecting rod 9 sides is consistent with first oil supply hole 19, offer connecting rod 9 sides from crankshaft 6 sides, second oil supply hole 18 that this lubricant oil that is provided links to each other by the spheroid portion 11 with connecting rod 9 front ends is to ball-and-socket joint portion 13 fuel feeding of ball seat 8a and 11 slips of spheroid portion.
By adopting this first method, can carry out fuel feeding fully to the lubricant oil of ball-and-socket joint portion 13, but form on the whole on this aspect of oil film deficiency is arranged also in ball-and-socket joint portion 13.This be because: the gap that forms between ball-and-socket joint 13 spheroid portions 11 of portion and the ball seat 8a has only very little 2～5 microns, so carry the lubricant oil that comes out by second oil supply hole 18 at this, all form oil film on the whole for making, the diameter of second oil supply hole 18 is too little about 3mm.Because originally before and after the diameter of the connecting rod 9 of the hermetic type compressor that refrigerating box etc. uses is 6mm, thus since reason second oil supply hole 18 on the intensity have only about 3mm certainly.Just to be difficult to covering lubricant oil on the whole about this 3mm in the ball-and-socket joint portion 13 that comprises the spheroid portion 11 more than the 10mm.
Therefore, in the present embodiment,, the fuel reserve tank of the lubricant oil that temporary transient storage comes out from second oil supply hole 18 is set between ball seat 8a and spheroid portion 11 as second method.Particularly, with the corresponding ball seat 8a of the opening of second oil supply hole 18 on, form opening size and be the fuel reserve tank 20 of the recess of the above 6mm of the twice of the diameter 3mm that is equivalent to second oil supply hole 18.By forming this fuel reserve tank 20, reach fuel feeding substantially to the lubricant oil of ball-and-socket joint portion 13, form oil film on the whole in described clearance portion.
In addition, as previously mentioned,, this fuel reserve tank 20 make the formation of ball seat 8a become easy by being set.
By strengthening this second method further, the method that can seek the further raising of efficient in addition.It is third party's method.That is, form the method for oil supply 17 at the outer surface of spheroid portion 11.As Figure 13, shown in Figure 14, this oil supply 17 forms at the outer surface of spheroid portion 11 that width is about 1.5mm, the degree of depth is the groove of 1mm.
As Fig. 9～shown in Figure 14, this oil supply 17 is equably to ball-and-socket joint portion 13 fuel feeding with the pass of fuel reserve tank 20.Promptly, when the relation of piston 8 and cylinder 7 is divided into inhalation process and compression section, by entering compression section in the opening that enters fuel reserve tank 20 at inhalation process oil supply 17, this oil supply 17 then is set on the position of departing from fuel reserve tank 20, thereby when compression section is applied load, lubricant oil in the fuel reserve tank 20 is offered ball-and-socket joint portion 13, make and can not cut off oil film.
In Figure 10～Figure 12, be described.Figure 10 is the schematic representation that is illustrated in before the fuel feeding that begins ball-and-socket joint portion 13, and Figure 11 is that the schematic representation to the state of ball-and-socket joint portion 13 fuel feeding is carried out in expression, and Figure 12 is that the schematic representation to the moment of the fuel feeding of ball-and-socket joint portion 13 is finished in expression.Certainly, piston 8 is connected on the crankshaft 6 by connecting rod 9, thereby connecting rod 9 and crankshaft 6 can change as Figure 10～Figure 12.In the drawings, 0～197 degree and 343 degree～360 degree of compression section have been omitted, being that the center describes how to oil supply 17 fuel feeding by fuel reserve tank 20.
At first, before the suction of Figure 10 began, oil supply 17 departed from fuel reserve tank 20, and first oil supply hole 19 that is arranged on this moment on the crankshaft 6 is in inconsistent state as shown in the figure with second oil supply hole 18 that is arranged on the connecting rod 9.Therefore, fuel reserve tank 20 was in this stage does not have the new oil condition of supplying.
As shown in figure 11, if the corner of crankshaft 6 reaches 198 degree, then oil supply 17 enters in the fuel reserve tank 20.In this stage, because first oil supply hole 19 also is not communicated with second oil supply hole 18, in fuel reserve tank 20, there is not enough lubricant oil, if the corner of crankshaft 6 reaches 235 degree～315 degree, then provide lubricant oil from crankshaft 6 one side direction fuel reserve tanks 20.If this lubricant oil that is provided is full of in fuel reserve tank 20, then lubricant oil enters in the oil supply 17, has following action.
That is, as shown in figure 12, remove first oil supply hole 19 and second oil supply hole 18 and the compression section that be communicated with of oil supply 17, then only the lubricant oil in the oil supply 17 is offered ball-and-socket joint portion 13 with fuel reserve tank 20 if entered.And, carry out the action that the compression section end enters inhalation process once more repeatedly.
Be arranged on first oil supply hole 19 on the crankshaft 6 around, as shown in figure 10, increase time that is communicated with second oil supply hole 18 by setting in advance second fuel reserve tank 16, can further guarantee fuel delivery.
Because present embodiment has structure as described above, so have following effect.
That is, hermetic type compressor, it comprises: crankshaft, transmit the rotating force from motor; Piston is equipped with the ball seat with sphere portion in the crankshaft side; Connecting rod, it has the chimeric annulus of spheroid portion that an end is connected with described ball seat, the other end and described crankshaft, be connected the bar portion of this annulus and described spheroid portion; And be stored in lubricant oil in the seal container, described hermetic type compressor provides described lubricant oil by described crankshaft, wherein, because first oil supply hole is set on described crankshaft, second oil supply hole that the lubricant oil that will come out from described first oil supply hole offers described ball seat is set on described connecting rod, the fuel reserve tank of the lubricant oil that temporary transient storage comes out from described second oil supply hole is set between described ball seat and described spheroid portion, so can lubricant oil directly be offered fuel reserve tank by oil supply hole, with the slide part between the ball seat of the spheroid portion of the oil lubrication connecting rod side in the fuel reserve tank and piston side, can prevent because oil film is cut off and the sintering slide part, so can obtain the good hermetic type compressor of reliability.In addition, because do not need special parts to provide lubricant oil, so can be so that the favourable structure of cost of production is obtained high efficiency hermetic compressor to this slide part.
In addition, because constituted fuel reserve tank, so can form fuel reserve tank simply by the recess that is arranged on the ball seat.
In addition because the aperture of the aperture efficiency of fuel reserve tank second oil supply hole is big, so when the spheroid portion of connecting rod side slides in the ball seat of piston side, by with fuel reserve tank in the expansion of lubricant oil surface of contact, further improved supply to the lubricant oil of slide part.
In addition, because the fuel reserve tank that will be provided with between ball seat and spheroid portion is as first fuel reserve tank, any that utilize crankshaft or annulus forms second fuel reserve tank, and make it comprise first oil supply hole, so rotate a circle and second oil supply hole that once is communicated with when lubricant oil is provided at the March arbor, can provide sufficient lubricating oil by second oil supply hole to first fuel reserve tank from second fuel reserve tank.
In addition, because in the wall thickness of crankshaft, form second fuel reserve tank, so first oil supply hole that is arranged on the crankshaft is added man-hour, because also can process second fuel reserve tank simultaneously, so the productivity height, and because do not use special parts, so favourable to cost of production yet.
In addition, because the oil supply that is communicated with fuel reserve tank is set on the outer surface of the spheroid portion of sliding, provide lubricant oil by oil supply to the slide part of ball seat and spheroid portion, in ball seat so can further prevent to cut off oil film reliably.
In addition, constitute in the following manner, promptly, be accompanied by the motion of piston and connecting rod, oil supply is communicated with fuel reserve tank and ball seat outside off and on, so the lubricant oil that is stored in the fuel reserve tank can be discharged to the outside bit by bit, replace fresh lubricant oil, see also from this point and can improve sliding capability.
In addition, the position relation of oil supply and fuel reserve tank is that the gas inhalation process at piston is connected, removes this connection in the gas compression operation, because when applying the compression section of load, can provide lubricant oil to the slide part of ball seat and spheroid portion, but be difficult to the structure of extracting so can form the lubricant oil of easy replacement ball-and-socket joint portion, can improve reliability significantly.
In addition, when the spheroid portion of connecting rod slides in the sphere portion of the piston side ball seat of processing by the central part of spheroid cutlery, because on ball seat, forming the concavity fuel reserve tank in discontiguous mode, so the slip by ball seat and spheroid portion can not cause damage to ball seat or spheroid portion.
And, because the middle body in ball seat 8a inboard is provided with the fuel reserve tank 20 of concavity, so can reduce the abrasion that the low part of the ball-and-socket joint portion 13 of connecting rod 9 and machining accuracy in ball seat 8a is slided and produced mutually.In addition, front end in ball-and-socket joint portion (spheroid portion) 13 is provided with second oil supply hole 18, be pre-formed the shape that caves in than ball shape at the front end that is easy to generate most the spheroid portion of abrasion owing to slide, so can avoid the slip of the low part of machining accuracy in the ball seat 8a and spheroid portion, can reduce owing to rub making the deterioration of ball-and-socket joint portion 13.
(second mode of execution)
Below, utilize accompanying drawing that a plurality of embodiments of second mode of execution of the present invention are described.In above-mentioned first mode of execution and following each embodiment's figure identical symbolic representation same parts or suitable parts are removed the part that has specified, and are identical with first mode of execution.
(first embodiment)
At first, utilize Figure 17 that first embodiment of second mode of execution of the present invention is described to Figure 22.
Overall structure about the shuttle hermetic type compressor of present embodiment describes with reference to Figure 17 and Figure 18.Figure 17 is the longitudinal section of the shuttle hermetic type compressor of the first embodiment of the present invention, and Figure 18 is the cross-sectional plan view of a part of the compression mechanical part of expression Figure 17.The shuttle hermetic type compressor of present embodiment is used in the fridge-freezer, goes for refrigeration, refrigerating plant as described above.
In the inside of seal container 1, be provided with the motor 2 of being furnished with rotor 2a and stator 2b, with compression mechanical part 3.Support 4 supports motor 2, compression mechanical part 3 in seal container 1.Crankshaft 5 is supported by the support 4 of fixed motor 2 rotor 2a.Be provided with the crankshaft 6 of eccentric part in the upper end of crankshaft 5.For reciprocal driven plunger 8, be provided with the ball-and-socket joint portion 13 between connecting crank axle 6 and the piston 8 for cylinder 7, it is made of the ball seat 8a of piston 8 and the spheroid portion 11 of connecting rod 9.Ball seat 8a is formed by the sphere portion at the crankshaft side opening.Connecting rod 9 comprises bar portion 10 as connecting rod, be fixedly connected on the spheroid portion 11 of an end of bar portion 10, be fixedly connected on the annulus 12 of the other end of bar portion 10.Annulus 12 can be fitted on the crankshaft 6 slidably, in addition, forms oil supply hole 18 on connecting rod 9.This oil supply hole 18 forms the spheroid portion 11 of running through, bar portion 10 and annulus 12, is connected with oily supply hole 6a on being formed at crankshaft 6.
Such as described, the hermetic type compressor that is used for freeze cycle contains motor 2 and compression mechanical part 3 in seal container 1.This compression mechanical part 3 is configured in the upper end side by the crankshaft 5 of 4 supports of support, and constitute by following part, that is, the crankshaft 6 of eccentric rotation, the piston 8 that in cylinder 7, reciprocatingly slides, the annulus 12 that links to each other with crankshaft 6 and the connecting rod 9 fixed with spheroid portion 11 one that bar portion 10 will link to each other with piston 8.And, by the ball-and-socket joint portion 13 that the ball seat 8a with spheroid portion 11 and piston 8 combines, connect connecting rod 9 and piston 8.
Between piston 8 and the cylinder 7 or between connecting rod 9 and the crankshaft 6 or, be to lubricate by the lubricant oil (not shown) that is stored in the seal container 1 when the compressor operation at the sliding position between the bearing portion of crankshaft 5 and support 4 or between ball seat 8a and spheroid portion 11 etc.Adopt following method, that is,, draw lubricant oil, offer sliding position from the bottom of seal container 1 by to spread all over the oily supply hole 6a that the mode that is communicated with on the total length is formed on crankshaft 5 inside.In order to draw lubricant oil, can adopt the method for forcing to append trochoid pump or with the rotating force of crankshaft 5 as the centrifugal pump effect and the method for fuel feeding etc.Use centrifugal pump in the present embodiment.
Then, with reference to Figure 19 and Figure 20 the piston 8 of the ball-and-socket joint portion 13 of formation present embodiment and the concrete structure of connecting rod 9 are described.Figure 19 is the central sectional view of the piston 8 that uses in Figure 18, and Figure 20 is the planimetric map of the connecting rod 9 that uses in Figure 18.
The recess 20 of necessity when as shown in figure 19, the central part in the inboard of the ball seat 8a of piston 8 is provided with at processing ball seat 8a '.This recess 20 ' constituted the portion that withdraws from of instrument of processing ball seat 8a.Inlet side at ball seat 8a is provided with opening portion 8b.In addition, the inlet side at ball seat 8a is provided with the insertion groove 8d that the insertion mouth of spheroid portion 11 is inserted in conduct.Insertion groove 8d is configured to the position that its bottom extends to the maximum outside diameter of ball seat 8a, with respect to the center line bilateral symmetry of piston 8.As shown in figure 20, a certain scope that above-below direction is removed from sphere by the spheroid portion 11 of connecting rod 9 has the 11a of plane transverse portion.The 11a of this plane transverse portion forms parallel up and down with the end face of annulus 12, and promptly top and bottom form parallel.
With the insertion groove 8d of piston 8 and the 11a of the plane transverse portion contraposition of spheroid portion 11, after inserting spheroid portion 11, make piston 8 and connecting rod 9 rotate the amount of approximate right angle by insertion groove 8d.Thus and since spheroid portion 11 with can not extract than little being connected of opening portion 8b of its diameter, thereby finished ball-and-socket joint portion 13.
And, for each the above-mentioned structure shown in second mode of execution, can be identical with the structure of the considerable part of first mode of execution.In addition, the structure of first mode of execution also is not limited to as the structure shown in above-mentioned first mode of execution, even utilize each above-mentioned structure shown in second mode of execution (especially shape of piston 8 etc.) also without any problem.
Then, the structure and the manufacture method of the contact stress of the sliding position of the ball-and-socket joint portion 13 that can reduce present embodiment are described to Figure 23 with reference to Figure 21.Figure 21 is the cross-sectional plan view of the ball-and-socket joint portion 13 that uses in Figure 18, and Figure 22 is the A portion enlarged view of Figure 21, and Figure 23 is the schematic representation of making method of the facial 8a2 of expansion of expression Figure 21.
As shown in figure 21, ball seat 8a be configured in inboard recess 20 ' with the opening portion 8b of inlet side between, constitute by facial 8a1 of endosphere and the facial 8a2 of expansion.The facial 8a1 of endosphere is the part that forms the main compression face of ball seat 8a, as shown in figure 22, is that the sphere of D constitutes by diameter.Enlarging facial 8a2 enlarges a little inboard partly the forming than the facial 8a1 of endosphere of ball seat 8a.This enlarges facial 8a2 and have the conical surface that extends to recess 20 ' side (central part side) from the arc surface of the facial 8a1 of endosphere on tangent direction.In the present embodiment, this conical surface has formed the integral body that enlarges facial 8a2.Therefore, recess 20 ' the outside on full week, forming expansion face.On the other hand, the facial 11b of the ectosphere of spheroid portion 11 is made of the sphere of diameter d.The facial 11b of the ectosphere of spheroid portion 11 and the facial 8a1 of endosphere of ball seat 8a between formed gap e as in the past, and and the facial 8a2 of expansion of ball seat 8a between formed than this gap e and become big gap gradually.
As shown in figure 23, the recess 20 of inboard ' and the opening portion 8b of inlet side between after the facial 8a1 of processing endosphere, axle center with respect to piston 8 tilts the axis of rotation of machining tool 40, under the state that makes piston 8 and machining tool 40 with the common rotation of different speed, machining tool 40 is pressed into the inboard of the facial 8a1 of endosphere, forms the facial 8a2 of expansion that enlarges than the facial 8a1 of endosphere in the inboard part of ball seat 8a.The external surface of machining tool 40 forms the shape identical with the net shape of ball seat 8a.Can make the ball seat 8a of piston 8 so simply.And the dotted line in Figure 23 is represented the imaginary circular arc part of the facial 8a1 of endosphere.
In the present embodiment, because between the facial 11b of ectosphere of facial 8a1 of the endosphere of ball seat 8a and spheroid portion 11, have gap e, so provide lubricant oil that ball seat 8a and spheroid portion 11 are smoothly slided to this gap e.In addition, when the compression section of compression operation, even spheroid portion 11 moves to the inboard of gap e, and be pressed into the inboard of ball seat 8a by force, because the inboard part at ball seat 8a has formed the facial 8a2 of expansion that enlarges than the facial 8a1 of endosphere, so can prevent with recess 20 ' the bight contact, can reduce the contact stress of ball seat 8a and spheroid portion 11.Thus, the wear resistance performance of slip surface can be improved, the good reciprocating and sealing type compressor of reliability can be obtained.And, because at the conical surface that enlarges the arc surface that is provided with on the facial 8a2 from the facial 8a1 of endosphere, enlarges in tangent direction, even so spheroid portion 11 swing movements also can prevent from can seek the raising of further reliability enlarging concentrating of contact stress on the facial 8a2 more reliably.
(second embodiment)
Then, utilize Figure 24 and Figure 25 that second embodiment of second mode of execution of the present invention is described.Figure 24 is second embodiment's of the second mode of execution of the present invention sectional view of ball-and-socket joint portion 14 of reciprocating and sealing type compressor, and Figure 25 is the sectional view of spheroid portion 11 of the connecting rod 9 of Figure 24.This second embodiment is different with first embodiment aspect following, basic identical with first embodiment aspect other.
In this second embodiment, the spheroid portion 11 of connecting rod 9 has formed than what the facial 11b of ectosphere dwindled at its fore-end and has dwindled facial 11b1, and by not enlarging the ball seat 8a that the facial 8a1 of facial endosphere has formed piston 8.In this second embodiment, when the compression section of compression operation,, and be pressed into the inboard of ball seat 8a by force even spheroid portion 11 also moves to the inboard of gap e, also can prevent with recess 20 ' the bight line contact, can reduce the contact stress of ball seat 8a and spheroid portion 11.
In addition, this second embodiment dwindles facial 11b1 forming its integral body than the big curvature of the facial 11b of ectosphere, and to have formed the joint with the facial 11b of ectosphere than the little curvature of the facial 11b of ectosphere.Forming this joint makes it become the tangent line with the arc surface of the facial 11b of ectosphere.By this structure, even spheroid portion 11 swing movements also can prevent from can seek the raising of further reliability enlarging concentrating of contact stress on the facial 8a2 more reliably.
Claims (8)
1. hermetic type compressor comprises:
Crankshaft transmits the rotating force from motor;
Piston is equipped with the ball seat with sphere portion in the crankshaft side;
Connecting rod, it has annulus on the chimeric described crankshaft of spheroid portion, the other end that an end is connected with described ball seat, connect the bar portion of this annulus and described spheroid portion;
And be stored in lubricant oil in the seal container,
Provide described lubricant oil by described crankshaft, it is characterized in that,
First oil supply hole is set on described crankshaft,
Second oil supply hole that the lubricant oil that will come out from described first oil supply hole offers described ball seat is set on described connecting rod,
The fuel reserve tank of the lubricant oil that temporary transient storage comes out from described second oil supply hole is set between described ball seat and described spheroid portion,
The fuel reserve tank that will be provided with between described ball seat and described spheroid portion utilizes the some of described crankshaft or described annulus and forms second fuel reserve tank according to the mode that comprises described first oil supply hole as first fuel reserve tank.
2. hermetic type compressor according to claim 1 is characterized in that,
Constitute described first fuel reserve tank by the recess that is arranged on the described ball seat.
3. hermetic type compressor according to claim 2 is characterized in that,
Be provided with the opening of described first fuel reserve tank bigger than the aperture of described second oil supply hole.
4. hermetic type compressor according to claim 3 is characterized in that,
In the wall thickness of described crankshaft, form described second fuel reserve tank.
5. hermetic type compressor according to claim 1 is characterized in that,
On the outer surface of the described spheroid portion of in described ball seat, sliding the oil supply that is communicated with described first fuel reserve tank is set.
6. hermetic type compressor according to claim 5 is characterized in that,
Constitute in the following manner: be accompanied by the motion of described piston and described connecting rod, described oil supply is communicated with described first fuel reserve tank and described ball seat outside off and on.
7. according to claim 5 or 6 described hermetic type compressors, it is characterized in that,
The position relation that forms is: described oil supply is communicated with described first fuel reserve tank, removes this connection in the gas compression operation.
8. hermetic type compressor according to claim 1 is characterized in that,
When the spheroid portion of connecting rod slides, on ball seat, form the concavity fuel reserve tank in discontiguous mode in the sphere portion of the piston side ball seat of being processed by the central part of spheroid cutlery.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005062108 | 2005-03-07 | ||
| JP2005062108A JP4512193B2 (en) | 2005-03-07 | 2005-03-07 | Reciprocating hermetic compressor and refrigeration / freezer using the same |
| JP2005146382 | 2005-05-19 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102128979A Division CN101392744B (en) | 2005-03-07 | 2006-01-20 | Closed type compressor and its manufacturing method and refrigerator-freezer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1831332A CN1831332A (en) | 2006-09-13 |
| CN100535437C true CN100535437C (en) | 2009-09-02 |
Family
ID=36993798
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102128979A Expired - Fee Related CN101392744B (en) | 2005-03-07 | 2006-01-20 | Closed type compressor and its manufacturing method and refrigerator-freezer |
| CNB2006100064390A Expired - Fee Related CN100535437C (en) | 2005-03-07 | 2006-01-20 | Sealed type compressor and method of manufacture thereof, and freezing and refrigerating plant |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102128979A Expired - Fee Related CN101392744B (en) | 2005-03-07 | 2006-01-20 | Closed type compressor and its manufacturing method and refrigerator-freezer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4512193B2 (en) |
| CN (2) | CN101392744B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2748492B1 (en) * | 2011-08-26 | 2016-10-12 | Schaeffler Technologies AG & Co. KG | Piston rod connection |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6456585U (en) * | 1987-10-05 | 1989-04-07 | ||
| JPH01124389U (en) * | 1988-02-18 | 1989-08-24 | ||
| CN1019410B (en) * | 1988-04-09 | 1992-12-09 | 吉恩·弗雷德里克·梅尔基奥尔 | Piston for use in combustion engines or similar machine |
| JPH1122640A (en) * | 1997-07-08 | 1999-01-26 | Riken Corp | Shoe for swash plate compressor |
| JP4058266B2 (en) * | 2001-12-20 | 2008-03-05 | 日立アプライアンス株式会社 | Hermetic compressor |
-
2005
- 2005-03-07 JP JP2005062108A patent/JP4512193B2/en not_active Expired - Fee Related
-
2006
- 2006-01-20 CN CN2008102128979A patent/CN101392744B/en not_active Expired - Fee Related
- 2006-01-20 CN CNB2006100064390A patent/CN100535437C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101392744B (en) | 2012-05-30 |
| JP4512193B2 (en) | 2010-07-28 |
| JP2006242147A (en) | 2006-09-14 |
| CN1831332A (en) | 2006-09-13 |
| CN101392744A (en) | 2009-03-25 |
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Correction item: Priority Correct: 2005.05.19 JP 2005-146382 False: Lack of priority second Number: 37 Page: The title page Volume: 22 |
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Address after: Tokyo, Japan Patentee after: Hitachi Global Living Program Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Appliances, Inc. |
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Effective date of registration: 20210419 Address after: Tokyo, Japan Patentee after: Hitachi Appliances, Inc. Address before: Tokyo Capital of Japan Patentee before: Hitachi Home & Life Solutions, Inc. |
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Effective date of registration: 20210804 Address after: Thailand Ayutthaya Patentee after: Meizhi Weiling application parts (Thailand) Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Global Living Program Co.,Ltd. |
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