CN1880771A - Lubricating structure for scroll compressor - Google Patents
Lubricating structure for scroll compressor Download PDFInfo
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- CN1880771A CN1880771A CN 200510013798 CN200510013798A CN1880771A CN 1880771 A CN1880771 A CN 1880771A CN 200510013798 CN200510013798 CN 200510013798 CN 200510013798 A CN200510013798 A CN 200510013798A CN 1880771 A CN1880771 A CN 1880771A
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- spinning reel
- scroll compressor
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- coil axle
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Abstract
The invention relates to a lubricant structure of vortex compressor, wherein said compressor comprises a frame with sealed contain space; a frame mounted inside the frame; a wheel tooth with involutes shape; and a fixing coil axle fixed on the frame. The wheel tooth is meshed with the fixing coil axle, to form a couple of compress rooms that continuously move, to be combined between the frame and the fixing coil axle; a lubricant layer is formed at the back of rotation coil axle that relative move to the compress rooms; a machine oil supply groove at the back of rotation coil axle, which is formed along the radius of rotation coil axle; the machine oil supply grooves are separated along the circumference of rotation coil axle. The invention can reduce the friction and abrasion between the rotation coil axle and the upper frame, to improve the product reliability.
Description
Technical field
The present invention relates to relate to a kind of lubricating structure of scroll compressor.
Background technique
In general, compressor is as the device of fluids such as a kind of compression refrigerant gas, according to the mode of its compressed fluid be divided into rotary compressor, toward dbl act compressor, scroll compressor etc.
Above-mentioned scroll compressor is a widely used high efficiency low noise compressor in the air conditioner field, in above-mentioned scroll compressor, two spools carry out relative rotary motion, and between each spool, form in pairs a plurality of pressing chambers, the pressing chamber of above-mentioned formation moves and smaller volume to central direction continuously, discharges behind the compression refrigerant thereby suck also continuously.
Fig. 1 is the sectional view of scroll compressor structure of the prior art; Fig. 2 is the rear view of the spinning reel structure in the scroll compressor of prior art.
To shown in Figure 2, existing scroll compressor includes following several sections as Fig. 1: the inner holding space that forms sealing, and the one side is provided with and is used to suck and discharge the gas suction pipe SP of cold media air and the shell 1 of gas outlet pipe DP; Be separately fixed at the upper frame 2 and the lower frame 3 of the both sides up and down of above-mentioned shell 1 inside; Be installed between above-mentioned upper frame 2 and the lower frame 3, and produce the drive motor 4 of turning effort power; Be pressed into the center of the gyrator 4b that is arranged on above-mentioned drive motor 4, be incorporated into spinning reel 6 described later, and transmit the live axle 7 of the turning effort power of drive motor 4 by upper frame 2; Have the gear teeth 5a of involute shape, and be fixedly mounted on the fixedly spool 5 on the top of upper frame 2; Have the gear teeth 6a of involute shape, make it to be engaged in said fixing spool 5, and for forming two a pair of pressing chamber P that move continuously, being incorporated into said fixing spool 5 carries out relative movement, and the spinning reel 6 of compression refrigerant; Be installed between above-mentioned spinning reel 6 and the upper frame 2, and the Euclidean packing ring of rotation when being used to prevent above-mentioned spinning reel 6 rotations (Oldham ' s ring) 8.
The middle body of above-mentioned upper frame 2 is formed with and is used for the axis hole 2a that radial direction supports above-mentioned live axle 7, and the upper end portion expansion of above-mentioned axis hole 2a is formed with axle sleeve accommodating part 2b, thereby makes the shaft sleeve part 6b (boss) of above-mentioned spinning reel 6 be rotated motion.
Above-mentioned live axle 7 is pressed among the gyrator 4b that is arranged on drive motor 4, the both sides up and down of above-mentioned live axle 7 will be supported by upper frame 2 and lower frame 3 from each, its inside is formed with the machine oil stream 7a that forms along the axle direction lengthening, be used to suck the machine oil of above-mentioned shell 1, and each bearing surface is lubricated.
Be combined with high low pressure separating plate 9 in the said fixing spool 5, above-mentioned high low pressure separating plate 9 is used for the inner space of above-mentioned shell 1 is divided into discharge pressure side space (S
Pd) and suck pressure side space (S
Ps).
The bottom surface of the light board of said fixing spool 5 is formed with the gear teeth 5a that constitutes two a pair of pressing chamber P, and above-mentioned gear teeth 5a is involute shape.The side of above-mentioned light board is formed with the suction port (not shown), is drawn into suction pressure side space (S thereby make by gas suction pipe SP
Ps) refrigerant be drawn among the pressing chamber P.Simultaneously, the upper central of above-mentioned light board partly is formed with exhaust port 5b, discharges pressure side space (S thereby the pressurized gas that compresses among the above-mentioned pressing chamber P is discharged to
Pd) in.
And, be provided with check valve (check valve) 10 above the said fixing spool 5, be used for selectivity and open and close above-mentioned exhaust port 5b, and prevent the adverse current phenomenon of cold media air.
Be formed with the gear teeth 6a of involute shape above the light board of above-mentioned spinning reel 6, the gear teeth 6a of above-mentioned spinning reel 6 will together constitute two a pair of pressing chamber P with the gear teeth 5a of said fixing spool 5.The bottom central part branch of above-mentioned light board is formed with shaft sleeve part 6b, will be among the above-mentioned shaft sleeve part 6b in conjunction with above-mentioned live axle 7, and transmit the power of drive motor 4, above-mentioned shaft sleeve part 6b will be inserted among the axle sleeve receiving groove 2b of upper frame 2, and rotatablely move.
In addition, drawing label 4a is the stator of drive motor 4; Label 6c is the keyway that is formed at the back side of above-mentioned spinning reel 6 for the key that inserts Euclidean packing ring 8 (key).
Below the as above working procedure of the existing scroll compressor of structure is described.
When drive motor 4 was connected power supply, live axle 7 will be rotated simultaneously with the gyrator 4b of above-mentioned drive motor 4, and spinning reel 6 will the distance with off-centre be rotated motion on upper frame 2 under the effect of Euclidean packing ring 8.Thus, above-mentioned spinning reel 6 and fixedly will be formed into right pressing chamber P continuously between the gear teeth 5a of spool 5 and the 6a, above-mentioned pressing chamber P moves to the central position by the continuous rotating motion of above-mentioned spinning reel 6, the volume of above-mentioned pressing chamber P is constantly reduced, discharge behind the compression refrigerant gas thereby suck also continuously.
Wherein, above-mentioned cold media air will be drawn into to suck and press side space (S by gas suction pipe SP
Ps), after being drawn into pressing chamber P and compressing by suction port again, the exhaust port 5b by said fixing spool 5 is discharged to discharge and presses side space (S
Pd).Subsequently, above-mentioned cold media air will be discharged in the refrigerating circulation system (not shown) by gas outlet pipe DP.
On the contrary, machine oil is when above-mentioned live axle 7 high speed rotating, under the action of centrifugal force that produces, machine oil stream 7a by live axle 7 sucks to the upper end, the part machine oil of above-mentioned suction is used for the axis hole 2a of lubricated upper frame 2, and another part then supplies between the thrust shaft bearing surface of thrust bearing (ThrustBearing) face of above-mentioned spinning reel 6 and upper frame 2 and is lubricated.
But, in existing scroll compressor, between the thrust shaft bearing surface of above-mentioned spinning reel 6 and upper frame 2, can't form on the whole lubricating layer uniformly by the machine oil of above-mentioned supply.
Because the lubricity between the thrust shaft bearing surface of above-mentioned spinning reel 6 and upper frame 2 is relatively poor, and cause the frictional loss between the thrust shaft bearing surface of above-mentioned spinning reel 6 and upper frame 2 to become big, and generation wear phenomenon, particularly under the excess load operating condition, to serious wear phenomenon take place, and reduce the reliability of compressor.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcome the bad defective of lubrication effect that existing scroll compressor exists, and provide a kind of lubricating structure of scroll compressor, minimize so that friction between spinning reel and the upper frame and wearing and tearing reach, thereby improve reliability of products.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of lubricating structure of scroll compressor, scroll compressor comprises: inside is formed with the shell of the holding space of sealing; Be fixedly mounted on the framework of above-mentioned enclosure; Have the gear teeth of involute shape, and be fixedly mounted on the fixedly spool of said frame; The gear teeth with involute shape make it to be engaged in the said fixing spool, and for forming two a pair of pressing chambers that move continuously, are incorporated between said frame and the said fixing spool, and can carry out the spinning reel of relative movement; It is characterized in that:, the engine oil supplying groove is set at the back side of above-mentioned spinning reel for the back side at above-mentioned spinning reel forms lubricating layer.
The lubricating structure of aforesaid scroll compressor, wherein the engine oil supplying groove forms along the radial direction of above-mentioned spinning reel.
The lubricating structure of aforesaid scroll compressor, wherein the engine oil supplying groove is isolated mutually along the circumferencial direction of above-mentioned spinning reel, and is provided with a plurality of.
The lubricating structure of aforesaid scroll compressor, wherein the degree of depth of engine oil supplying groove is 30 μ m to 50 μ m.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the sectional view of existing scroll compressor structure;
Fig. 2 is the stereogram of the spinning reel in the existing scroll compressor;
Fig. 3 is the structural section figure that has the scroll compressor of lubricating structure among the present invention;
Fig. 4 is the stereogram of spinning reel that has the scroll compressor of lubricating structure among the present invention.
The number in the figure explanation:
11: shell 12,13: framework
14: drive motor 15: fixing spool
16: spinning reel 16d: the engine oil supplying groove
17: live axle 18: the Euclidean packing ring (Oldham ' s ring)
Embodiment
In the following description, for the basic technological thought of clear and definite the present invention, will save corresponding detailed description to known function or structure.
Shown in Fig. 3,4, the scroll compressor that has lubricating structure among the present invention, it includes following several sections: the inner holding space that forms sealing, and the one side is provided with and is used to suck and discharge the gas suction pipe SP of cold media air and the shell 11 of gas outlet pipe DP; Respectively be fixed on the upper frame 12 and the lower frame 13 of the both sides up and down of above-mentioned shell 11 inside; Be installed between above-mentioned upper frame 12 and the lower frame 13, and produce the drive motor 14 of turning effort power; Be pressed into the center of the gyrator 14b that is arranged on above-mentioned drive motor 14, be incorporated into spinning reel 16 described later, and transmit the live axle 17 of the turning effort power of drive motor 14 by upper frame 12; Have the gear teeth 15a of involute shape, and be fixedly mounted on the fixedly spool 15 on the top of upper frame 12; Have the gear teeth 16a of involute shape, make it to be engaged in said fixing spool 15, and for forming two a pair of pressing chamber P that move continuously, being incorporated into said fixing spool 15 carries out relative movement, and the spinning reel 16 of compression refrigerant; Be installed between above-mentioned spinning reel 16 and the upper frame 12, and the Euclidean packing ring of rotation when being used to prevent above-mentioned spinning reel 16 rotations (Oldham ' s ring) 18.
The middle body of above-mentioned upper frame 12 is formed with and is used for the axis hole 12a that radial direction supports above-mentioned live axle 17, the upper end portion expansion of above-mentioned axis hole 12a is formed with axle sleeve accommodating part 12b, thereby makes the shaft sleeve part 16b (boss) of above-mentioned spinning reel 16 be rotated motion.
Above-mentioned live axle 17 is pressed among the gyrator 14b that is arranged on drive motor 14, the both sides up and down of above-mentioned live axle 17 are supported each by upper frame 12 and lower frame 13, its inside is formed with the machine oil stream 17a that forms along the axle direction lengthening, be used to suck the machine oil of above-mentioned shell 11, and each bearing surface is lubricated.
Be combined with high low pressure separating plate 19 in the said fixing spool 15, above-mentioned high low pressure separating plate 19 is used for the inner space of above-mentioned shell 11 is divided into discharge pressure side space (S
Pd) and suck pressure side space (S
Ps).
The bottom surface of the light board of said fixing spool 15 is formed with the gear teeth 15a that constitutes two a pair of pressing chamber P, and above-mentioned gear teeth 15a is involute shape.The side of above-mentioned light board is formed with the suction port (not shown), is drawn into suction pressure side space (S thereby make by gas suction pipe SP
Ps) refrigerant be drawn among the pressing chamber P.Simultaneously, the upper central of above-mentioned light board partly is formed with exhaust port 15b, discharges pressure side space (S thereby the pressurized gas that compresses among the above-mentioned pressing chamber P is discharged to
Pd) in.
And, be provided with check valve (check valve) 110 above the said fixing spool 15, be used for selectivity and open and close above-mentioned exhaust port 15b, and prevent the adverse current phenomenon of cold media air.
Be formed with the gear teeth 16a of involute shape above the light board of above-mentioned spinning reel 16, the gear teeth 16a of above-mentioned spinning reel 16 will together constitute two a pair of pressing chamber P with the gear teeth 15a of said fixing spool 15.The bottom central part branch of above-mentioned light board is formed with shaft sleeve part 16b, will be among the above-mentioned shaft sleeve part 16b in conjunction with above-mentioned live axle 17, and the power of transmission drive motor 14, above-mentioned shaft sleeve part 16b will be inserted among the axle sleeve receiving groove 12b of upper frame 12, and rotatablely move.
In addition, in order to have lubrication effect preferably between the thrust shaft bearing surface that makes above-mentioned spinning reel 16 and upper frame 12, the back side of above-mentioned spinning reel 16 is recessed to form organic oil and supplies with groove 16d, and said engine oil is supplied with groove 16d will have set length along the radial direction of spinning reel 16.
And said engine oil is supplied with groove 16d and can be isolated mutually along the circumferencial direction of spinning reel 16, and be provided with a plurality of, for each key (not shown) symmetry of above-mentioned Euclidean packing ring 18, said engine oil is supplied with preferably equal intervals of groove 16d, is provided with 4 at least.
And in order to ensure pressing evenly joining of above-mentioned spinning reel 16, the degree of depth t that said engine oil is supplied with groove 16d is preferably 30 μ m to 50 μ m.
In addition, drawing label 14a is the stator of drive motor 14; Label 16c is the keyway that is formed at the back side of above-mentioned spinning reel 16 for the key (key) that inserts Euclidean packing ring 18.
Working procedure to the scroll compressor among the present invention of as above structure describes below.
When drive motor 14 was connected power supply, live axle 17 will be rotated simultaneously with the gyrator 14b of above-mentioned drive motor 14, and spinning reel 16 will the distance with off-centre be rotated motion on upper frame 12 under the effect of Euclidean packing ring 18.Thus, above-mentioned spinning reel 16 and fixedly will be formed into right pressing chamber P continuously between gear teeth 15a, the 16a of spool 15, above-mentioned pressing chamber P moves to the central position by rotatablely moving continuously of above-mentioned spinning reel 16, the volume of above-mentioned pressing chamber P is constantly reduced, discharge behind the compression refrigerant gas thereby suck also continuously.
Wherein, above-mentioned cold media air will be drawn into to suck and press side space (S by gas suction pipe SP
Ps), after being drawn into pressing chamber P and compressing by suction port again, the exhaust port 15b by said fixing spool 15 is discharged to discharge and presses side space (S
Pd).Subsequently, above-mentioned cold media air will be discharged in the refrigerating circulation system (not shown) by gas outlet pipe DP.
On the contrary, machine oil is when above-mentioned live axle 17 high speed rotating, under the action of centrifugal force that produces, machine oil stream 17a by live axle 17 sucks to the upper end, the part machine oil of above-mentioned suction is used for the axis hole 12a of lubricated upper frame 12, another part then supplies between the thrust shaft bearing surface of thrust bearing (ThrustBearing) face of above-mentioned spinning reel 16 and upper frame 12, and is lubricated.
At this moment, machine oil between the above-mentioned thrust shaft bearing surface that supplies to spinning reel 16 and upper frame 12, among the engine oil supplying groove 16d that the back side of saving bit by bit above-mentioned spinning reel 16 is formed, and when above-mentioned spinning reel 16 is rotated, to evenly spread between the thrust shaft bearing surface of above-mentioned spinning reel 16 and upper frame 12, thereby can form uniform on the whole lubricating layer.
Thus, in the present invention, machine oil will be evenly distributed between the thrust shaft bearing surface of above-mentioned spinning reel 16 and upper frame 12, and the uniform on the whole lubricating layer of formation, minimize thereby friction between above-mentioned spinning reel 16 and the upper frame 12 and wearing and tearing are reached, and improve reliability of products thus.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
The invention effect:
As mentioned above, the lubrication system of the scroll compressor among the present invention is owing to the back of the body at spinning reel Face forms the engine oil supplying groove, so lubricating oil can be supplied to the thrust shaft of above-mentioned spinning reel and upper frame Between the bearing surface, and supply with groove Uniform Dispersion machine oil by said engine oil and form on the whole uniformly lubricating layer, Minimize thereby frictionalwear between above-mentioned spinning reel and the upper frame is reached, and improve thus The reliability of product.
Claims (4)
1, a kind of lubricating structure of scroll compressor, scroll compressor comprises: inside is formed with the shell of the holding space of sealing; Be fixedly mounted on the framework of above-mentioned enclosure; Have the gear teeth of involute shape, and be fixedly mounted on the fixedly spool of said frame; The gear teeth with involute shape make it to be engaged in the said fixing spool, and for forming two a pair of pressing chambers that move continuously, are incorporated between said frame and the said fixing spool, and can carry out the spinning reel of relative movement; It is characterized in that:
For the back side at above-mentioned spinning reel forms lubricating layer, the engine oil supplying groove is set at the back side of above-mentioned spinning reel.
2, the lubricating structure of scroll compressor according to claim 1 is characterized in that:
Said engine oil is supplied with the radial direction formation of groove along above-mentioned spinning reel.
3, the lubricating structure of scroll compressor according to claim 1 and 2 is characterized in that:
Said engine oil supply groove is isolated mutually along the circumferencial direction of above-mentioned spinning reel, and is provided with a plurality of.
4, the lubricating structure of scroll compressor according to claim 1 and 2 is characterized in that:
The degree of depth that said engine oil is supplied with groove is 30 μ m to 50 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013798 CN1880771A (en) | 2005-06-13 | 2005-06-13 | Lubricating structure for scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510013798 CN1880771A (en) | 2005-06-13 | 2005-06-13 | Lubricating structure for scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1880771A true CN1880771A (en) | 2006-12-20 |
Family
ID=37519082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510013798 Pending CN1880771A (en) | 2005-06-13 | 2005-06-13 | Lubricating structure for scroll compressor |
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| Country | Link |
|---|---|
| CN (1) | CN1880771A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086866A (en) * | 2011-03-16 | 2011-06-08 | 南京奥特佳冷机有限公司 | Ring pin structure type scroll compressor with lubrication groove on end surface of moving plate |
| CN102893031A (en) * | 2010-05-18 | 2013-01-23 | 三电有限公司 | Scroll-type fluid machine |
-
2005
- 2005-06-13 CN CN 200510013798 patent/CN1880771A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893031A (en) * | 2010-05-18 | 2013-01-23 | 三电有限公司 | Scroll-type fluid machine |
| CN102086866A (en) * | 2011-03-16 | 2011-06-08 | 南京奥特佳冷机有限公司 | Ring pin structure type scroll compressor with lubrication groove on end surface of moving plate |
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