CN1566651A - Crankshaft oil supply structure for hermetic compressor - Google Patents
Crankshaft oil supply structure for hermetic compressor Download PDFInfo
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- CN1566651A CN1566651A CN 03148015 CN03148015A CN1566651A CN 1566651 A CN1566651 A CN 1566651A CN 03148015 CN03148015 CN 03148015 CN 03148015 A CN03148015 A CN 03148015A CN 1566651 A CN1566651 A CN 1566651A
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Abstract
The invention is about a crankshaft oil supply structure of closed type compressor. A loop oil groove 40 is arranged on the invention for conveying lubricating oil to between the crankshaft 30 and the wheel hub 22 by the lubricating oil groove 37. the loop oil groove 40 is formed extending to or out of the end of the wheel hub 22. The invention can make the lubricating oil conveyed smoothly between the wheel hub 22 and the rotatable crankshaft and reduce the friction between the crankshaft 30 and wheel hub part 22 and power needed by the crankshaft rotation.
Description
Technical field
The present invention relates to the hermetic type compressor in the compressor of a kind of common engineering field, particularly relate to a kind of between crankshaft and frame hub portion, the conveying in the hermetic type compressor of lubricant oil, lubricant oil can be supplied with smoothly the whole lubricant housings that are transported between crankshaft and the frame hub portion, thereby be suitable for practical crankshaft fuel feeding knot (A oil furnishing structure of crank-shaftfor hermetic compressor) more.
Background technique
Seeing also shown in Figure 1ly, is the internal structure generalized section according to the existing common hermetic type compressor of prior art.As shown in the figure, above-mentioned existing common compressor, it mainly includes with lower member:
Seal container 1 by upper container 1t and bottom container 1b are constituted is provided with frame 2 in the installation of the inside of this seal container 1.On above-mentioned frame 2, be fixed with stator 3, and above-mentioned frame 2 is to support the inside that is arranged at seal container 1 with spring 2S.
In addition, the crankshaft 5 that is provided with the above-mentioned frame of perforation 2 central authorities is installed; This crankshaft 5 through above-mentioned frame 2 to the long hub portion 2 ' that extends to form in bottom, and supported its outer circumferential face by this hub portion 2 ', state the mutual electric field action of stator 3, and together rotate with above-mentioned crankshaft 5.
In the upper end of above-mentioned crankshaft 5, form and be provided with the centrifugal fin 5b that departs from above-mentioned crankshaft 5 rotating centers; In addition, in the opposite side of above-mentioned centrifugal fin 5b, form and be provided with counterweight 5c.And above-mentioned crankshaft 5 connects the central authorities of above-mentioned frame 2 and is provided with, and this crankshaft 5 is rotatable being supported on the frame 2.
Seeing also shown in Figure 2ly, is the cut-away section schematic representation according to the existing hermetic type compressor crank oil supply structure of prior art.In the inside of above-mentioned crankshaft 5, form and be provided with oil groove 5a; Above-mentioned oil leab 5a is when above-mentioned crankshaft 5 is arranged on the frame 2, is arranged at the high a little position, lower end than the hub portion 2 ' of frame 2; And its with the part of above-mentioned hub portion 2 ' symmetry, and along the oil groove 5a ' of the outside spiralization of above-mentioned crankshaft 5 be communicated with oilhole 5h and be connected.Above-mentioned oil groove 5a ' for along the outside of the crankshaft 5 that rotatablely moves with above-mentioned frame 2 in the shape of a spiral type form; And it is in the upper end of above-mentioned crankshaft 5, " is connected with the oil leab 5a that is formed at centrifugal fin 5b inside by connection oilhole 5h.And, underpart at above-mentioned crankshaft 5, be provided with the aspirator 5d that can aspirate above-mentioned lubricant oil L and its conveying is fed to oil groove 5a, and make the lubricant oil L that is arranged at seal container 1 bottom surface, can direct into the top of above-mentioned frame 2 by above-mentioned oil leab 5a and disperse and come.
Secondly, integrally formedly on above-mentioned frame 2 be provided with the drum casing portion 6 that inside has pressing chamber 6 '.In the above-mentioned pressing chamber 6 ', be provided with the piston 7 that the centrifugal fin 5b by connecting rod 8 and above-mentioned crankshaft 5 links together; In addition, the front end in said cylinder portion 6 is provided with and can controls the valve member 9 that flows into or discharge the condensing agent of above-mentioned pressing chamber 6 '.On this valve member 9, be fixed with top cover 10; And, in above-mentioned top cover 10, in order to carry condensing agent, and be provided with the suction silencing apparatus 11 that is mounted on the above-mentioned valve member 9 to above-mentioned pressing chamber 6 '.Unaccounted symbol 12 is the suction pipes that condensing agent are transported to seal container 1 inside among the figure, the 13rd, the condensing agent of compression is outputed to the output tube of compressor outside.
When the above-mentioned crankshaft 5 that above prior art constitutes rotated, lubricant oil L was transported to oil leab 5a by above-mentioned aspirator 5d suction.The lubricant oil L that aspirates up along above-mentioned oil leab 5a is transported to oil groove 5a ' by being communicated with oilhole 5h.In rising the lubricant oil L that carries along above-mentioned oil groove 5a ', wherein a part is used between the outside and hub portion 2 ' inner face of lubricated above-mentioned crankshaft 5.
The lubricant oil L that is sent to above-mentioned oil groove 5a ' top is transported to the oil leab 5a that connects centrifugal fin 5b inside by the connection oilhole 5h that crankshaft 5 upper ends are provided with formation again " in; then disperse out; be transported to separately lubricated portion and generating heat department again, and play effect lubricated and cooling in the upper end of centrifugal fin 5b.
But the crankshaft oil supply structure of above-mentioned existing hermetic type compressor has following problem:
At first, because the oil groove 5a ' of supplying lubricating oil L between above-mentioned crankshaft 5 outsides and hub portion 2 ' inner face, be arranged on the position higher than the underpart of above-mentioned hub portion 2 ', and when the connection oilhole 5h that is communicated with above-mentioned oil leab 5a and oil groove 5a ' be when being arranged at than the low position of above-mentioned hub portion 2 ', then can cause the lubricant oil L can't be by being communicated with the situation that oilhole 5h be transported to oil groove 5a '.
Secondly, as shown in Figure 2, crankshaft 5 outsides of part and the part that rotatablely moves between the hub portion 2 ' inner face between lower end that is equivalent to above-mentioned hub portion 2 ' and connection oilhole 5h, because the supply of lubricant oil L has some setbacks, so can cause the hub portion 2 ' of b section part among the figure and the friction between the crankshaft 5 to strengthen.
As above-mentioned structure, the b section of wheel hub part 2 ' part will produce more wearing and tearing, thereby the durability that compressor takes place descends, and the problem for the input power of rotary crank axle 5 must be provided more.
This shows that the crankshaft oil supply structure of above-mentioned existing hermetic type compressor still has many defectives, and demands urgently further being improved.
The problem that exists for the crankshaft oil supply structure that solves above-mentioned hermetic type 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.
Because the defective that the crankshaft oil supply structure of above-mentioned existing hermetic type 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, actively studied innovation, in the hope of founding a kind of crankshaft oil supply structure of novel hermetic type compressor, can improve the crankshaft oil supply structure of general existing hermetic type 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
Main purpose of the present invention is, overcome the defective of the crankshaft oil supply structure existence of existing hermetic type compressor, and provide a kind of crankshaft oil supply structure of novel hermetic type compressor, technical problem underlying to be solved is to make it lubricant oil can be supplied with smoothly the whole lubricant housings that are transported between crankshaft and the frame hub portion, thereby is suitable for practicality more.
Purpose of the present invention and to solve its technical problem underlying be to adopt following technological scheme to realize.The crankshaft oil supply structure of a kind of hermetic type compressor that proposes according to the present invention is arranged at frame and is provided with hub portion, and connects the hermetic type compressor that is provided with crankshaft in this hub portion, and it comprises with lower member and being constituted:
Be arranged at the oil leab that the lower inside of above-mentioned crankshaft is aspirated up lubricant oil;
Along being formed at crankshaft top and carrying lubricant oil with the symmetrical crankshaft of above-mentioned hub portion outside, and the oil groove that is connected by the connection oilhole that is arranged at above-mentioned oil leab and above-mentioned hub portion lower end symmetrical position; And
By above-mentioned oil leab a part of lubricant oil that suction comes up is transported to respect to the crankshaft of above-mentioned connection oilhole bottom and the endless-oil groove between the hub portion.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures.
The crankshaft oil supply structure of aforesaid hermetic type compressor, wherein said piston oil slot be communicated with oilhole and be connected, and be set to end than above-mentioned hub portion and more protrude and stretch out and form.
The crankshaft oil supply structure of aforesaid hermetic type compressor, wherein said piston oil slot is connected with oil groove, and is set to end than above-mentioned hub portion and more protrudes and stretch out and form.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technological scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The crankshaft oil supply structure of hermetic type compressor of the present invention because of it has carried out minimization with the friction between crankshaft and the frame hub portion, and can reduce wear, and then makes the suction of compressor to reach to minimize.
According to the as above crankshaft oil supply structure of the hermetic type compressor of the present invention of structure, by being provided with piston oil slot, and make the part supplying lubricating oil that rotatablely moves to crankshaft and hub portion, with respect to crankshaft that is communicated with the oilhole bottom and the part between the hub portion, also can be fed to lubricant oil smoothly.
Therefore, the present invention has following tangible advantage, that is, the present invention can make relative minimizing of friction of above-mentioned crankshaft and hub portion, makes the wearing and tearing of crankshaft and hub portion reach and minimizes, and can make for the input power that drives crankshaft reaches and minimize.
In sum, the crankshaft oil supply structure of the hermetic type compressor of special construction of the present invention can be supplied with lubricant oil smoothly the whole lubricant housings that are transported between crankshaft and the frame hub portion, thereby be suitable for practicality more.It has above-mentioned many advantages and use value, and in like product, do not see have similar structural design to publish or use, no matter structurally or bigger improvement all arranged on the function, have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thus be suitable for practicality more, 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, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the internal structure generalized section according to the existing common compressor of prior art.
Fig. 2 is the cut-away section schematic representation according to the existing hermetic type compressor crank oil supply structure of prior art.
Fig. 3 is the structural profile schematic representation of preferred embodiment of the crank oil supply structure of hermetic type compressor of the present invention.
Fig. 4 is another embodiment's the structural profile schematic representation of the crank oil supply structure of hermetic type compressor of the present invention.
1......... seal container 1t ... upper container
1b ... bottom container 2......... frame
2 ' ... hub portion 2S ... spring
3......... stator 4......... rotor
5......... crankshaft 5a ... oil groove
5a ' ... oil groove 5a " ... oil leab
5b ... centrifugal fin 5c ... counterweight
5d ... aspirator 5h ... be communicated with oilhole
6......... cylinder part 6 ' ... pressing chamber
7......... piston 8......... connecting rod
9......... valve member 10 ... top cover
11 ... absorbing silencer 12 ... suction pipe
13 ... output tube 20 ... frame
22 ... hub portion 24 ... through hole
30...... the centrifugal fin of crankshaft 31......
33...... counterweight 34...... aspirator
35...... oil leab 36...... is communicated with oilhole
37...... oil groove 38...... is communicated with oilhole
39...... oil leab 40...... endless-oil groove
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, its embodiment of crankshaft oil supply structure, structure, feature and the effect thereof of the hermetic type compressor that foundation the present invention is proposed, describe in detail as after.
Seeing also shown in Figure 3ly, is the structural profile schematic representation of preferred embodiment of the crank oil supply structure of hermetic type compressor of the present invention.
As shown in Figure 3, the frame 20 of the preferred embodiment of the crankshaft oil supply structure of hermetic type compressor of the present invention is arranged in the seal container 1, is the part that sets firmly the component that respectively constitute compressor is installed; Above-mentioned frame 20 forms the hub portion 22 that is provided with up/down perforation in a side; Wheel hub part 22 is set to extend to form to the downside of frame 20, and interior portion perforation therein is provided with through hole 24.
The through hole 24 of above-mentioned hub portion 22 connects and is provided with crankshaft 30; Crankshaft 30 rotatably is supported in the above-mentioned frame 20, and with rotor 4 rotations (shown in Figure 1 in conjunction with consulting); The upper end of above-mentioned crankshaft 30 is provided with centrifugal fin 31, and this centrifugal fin 31 is connected with connecting rod 8, plays a part the rotating force of crankshaft 30 is delivered to piston 7; In order to guarantee the off-centre operation of above-mentioned centrifugal fin 31, and the corresponding counterweight 33 that is provided with.
The lower end of above-mentioned crankshaft 30 is provided with the aspirator 34 that suction lubricant oil L uses; This aspirator 34 plays a part lubricant oil L is aspirated up along with the rotation of above-mentioned crankshaft 30.But the difference according to design and service condition also can not be provided with aspirator 34, and even without aspirator 34 is set, the present invention also can directly aspirate up lubricant oil L.
Inner formation is provided with oil leab 35 in the lower end of above-mentioned crankshaft 30; This oil leab 35 is for extending to the top of crankshaft 30, and this oil leab 35 is set to be the eccentric structure state with respect to the rotating center of above-mentioned crankshaft 30 and forms.This structure can directly be aspirated up lubricant oil L under the condition that aspirator 34 is not set.But above-mentioned oil leab 35 should be arranged on than high slightly position, above-mentioned hub portion 22 underparts.
The end portion of above-mentioned oil leab 35 is connected in and is communicated with oilhole 36, and penetrates into the outer surface of crankshaft 30; Above-mentioned connection oilhole 36 is by above-mentioned oil leab 35, and the lubricant oil conveying that suction is come up supplies to the oil groove 37 in following explanation.Above-mentioned connection oilhole 36 is provided with and is formed on the position inner symmetrical with above-mentioned hub portion 22 lower ends.
In order to be connected with above-mentioned connection oilhole 36, above-mentioned crankshaft 30 forms along outer circumferential face and is provided with oil groove 37; Above-mentioned oil groove 37 is to be set to the top that shape in the shape of a spiral extends to above-mentioned crankshaft 30, and this oil groove 37 is to play a part lubricant oil is carried the slideway portion that is fed between above-mentioned crankshaft 30 outsides and hub portion 22 inner faces.
Then form at the end of above-mentioned oil groove 37 and to be provided with another and to be communicated with oilhole 38.This connection oilhole 38 is provided with and is formed on the position symmetrical with the bottom of counterweight 33, and the oil leab 39 that will illustrate below the lubricant oil that moves along oil groove 37 conveyings can being transported to.
The inside of above-mentioned centrifugal fin 31 forms and is provided with the oil leab 39 that is connected with oil groove 37 by above-mentioned connection oilhole 38; Lubricant oil by the above-mentioned oil leab 39 that is arranged at centrifugal fin 31 inside is carried disperses to the top of crankshaft 30, and then is transported to separately lubricated portion and generating heat department, and plays effect lubricated and cooling.
On the other hand, in order to be connected, to form in addition and be provided with endless-oil groove 40 with the connection oilhole 36 of crankshaft 30 parts of the lower end symmetry that is arranged on above-mentioned hub portion 22.Above-mentioned piston oil slot 40 is connection oilholes 36 of forming of high position slightly from above-mentioned hub portion 22 lower ends, extends to the position that detaches hub portion 22, that is, and and the bottom from above-mentioned connection oilhole 36 towards crankshaft 30 and forming; Above-mentioned piston oil slot 40 can be provided with and be formed on and above-mentioned hub portion 22 terminal identical positions, also can be provided with and be formed on the position that breaks away from hub portion 22 ends.
Seeing also shown in Figure 4ly, is another embodiment's the structural profile schematic representation of the crank oil supply structure of hermetic type compressor of the present invention.In first embodiment of above explanation, above-mentioned piston oil slot 40 is to be set to from above-mentioned connection oilhole 36 initially, extends to the bottom of crankshaft 30 outsides and forms; And in the present embodiment, this piston oil slot 40 ', be to be set to from above-mentioned oil groove 37, the bottom that extends to crankshaft 30 prolongs and forms, and lubricant oil is carried between the above-mentioned crankshaft 30 and hub portion 22 that supplies to respect to above-mentioned connection oilhole 36 bottoms.
Below according to aforesaid structure, the operative scenario and the effect of the crankshaft oil supply structure of hermetic type compressor of the present invention is described in detail as follows.
See also Fig. 3, and shown in Figure 1 in conjunction with consulting, the rotor 4 of Driven Compressor revolution motor, 30 of above-mentioned crankshafts can rotate together; When above-mentioned crankshaft 30 rotates, transmission of power is arrived piston 7, make piston 7 do straight reciprocating motion by the connecting rod 8 that is connected with above-mentioned centrifugal fin 31.
At this moment, lubricant oil L carries the oil leab 35 that is fed to above-mentioned crankshaft 30 by above-mentioned aspirator 34; The lubricant oil that is fed to above-mentioned oil leab 35 then is sucked into the top of oil leab 35, and is transported in the above-mentioned oil groove 37 by above-mentioned connection oilhole 36 on the top of this oil leab 35.
The lubricant oil that is transported to above-mentioned oil leab 37 then plays lubrication in the outside of above-mentioned crankshaft 30 and the portion that rotatablely moves between the hub portion 22, promptly, lubricant oil is taken out on the rotating force of above-mentioned crankshaft 30, and supplies to the above-mentioned portion that rotatablely moves along above-mentioned oil groove 37.And during lubricant oil flow through along above-mentioned oil groove 37, above-mentioned crankshaft 30 constantly rotated, thereby the lubricant oil that flows through in the above-mentioned oil groove 37 is carried the inner face that is fed to hub portion 22 continuously, and played good lubrication.
At the end of above-mentioned oil groove 37, lubricant oil then flows to the oil leab 39 that is arranged on centrifugal fin 31 inside by above-mentioned connection oilhole 38; And the lubricant oil that the oil leab 39 of formation is carried is set by above-mentioned centrifugal fin 31 inside, then rotatablely move and disperse to top along with the off-centre of 31 pairs of crankshafts 30 of centrifugal fin, and then be transported to lubricated portion and generating heat department separately respectively, and play effect lubricated and cooling.
Again, be transported to the lubricant oil that is communicated with oilhole 36 from above-mentioned oil leab 35, wherein a part is transported in the above-mentioned piston oil slot 40; And be transported to the lubricant oil of this piston oil slot 40, then carry to be fed to respect to the above-mentioned crankshaft 30 of above-mentioned connection oilhole 36 bottoms and the portion that rotatablely moves between the hub portion 22.
By said structure, make and be transported at the above-mentioned crankshaft 30 of above-mentioned connection oilhole 36 bottoms and the lubricant oil of the portion that rotatablely moves between the hub portion 22, between above-mentioned crankshaft 30 and hub portion 22, play lubrication, and then can minimize so that the frictional force between them reaches.
The technological innovation of the crankshaft oil supply structure of the hermetic type compressor of the present invention that above-mentioned structure like this constitutes all has many saving graces for technician of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1, a kind of crankshaft oil supply structure of hermetic type compressor is arranged at frame and is provided with hub portion, and connects the hermetic type compressor that is provided with crankshaft in this hub portion, it is characterized in that it comprises with lower member to be constituted:
Be arranged at the oil leab that the lower inside of above-mentioned crankshaft is aspirated up lubricant oil;
Along being formed at crankshaft top and carrying lubricant oil with the symmetrical crankshaft of above-mentioned hub portion outside, and the oil groove that is connected by the connection oilhole that is arranged at above-mentioned oil leab and above-mentioned hub portion lower end symmetrical position; And
By above-mentioned oil leab a part of lubricant oil that suction comes up is transported to respect to the crankshaft of above-mentioned connection oilhole bottom and the endless-oil groove between the hub portion.
2, the crankshaft oil supply structure of hermetic type compressor according to claim 1 is characterized in that wherein said piston oil slot and is communicated with oilhole and is connected, and is set to end than above-mentioned hub portion and more protrudes and stretch out and form.
3, the crankshaft oil supply structure of hermetic type compressor according to claim 1 is characterized in that wherein said piston oil slot is connected with oil groove, and is set to end than above-mentioned hub portion and more protrudes and stretch out and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03148015 CN1566651A (en) | 2003-06-26 | 2003-06-26 | Crankshaft oil supply structure for hermetic compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03148015 CN1566651A (en) | 2003-06-26 | 2003-06-26 | Crankshaft oil supply structure for hermetic compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1566651A true CN1566651A (en) | 2005-01-19 |
Family
ID=34472150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03148015 Pending CN1566651A (en) | 2003-06-26 | 2003-06-26 | Crankshaft oil supply structure for hermetic compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1566651A (en) |
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2003
- 2003-06-26 CN CN 03148015 patent/CN1566651A/en active Pending
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