CN1451875A - Structure for decreasing friction loss of compressor - Google Patents
Structure for decreasing friction loss of compressor Download PDFInfo
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- CN1451875A CN1451875A CN 02116633 CN02116633A CN1451875A CN 1451875 A CN1451875 A CN 1451875A CN 02116633 CN02116633 CN 02116633 CN 02116633 A CN02116633 A CN 02116633A CN 1451875 A CN1451875 A CN 1451875A
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- compressor
- rotating shaft
- lower bearing
- frictional loss
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Abstract
A structure for decreasing the friction loss of compressor is disclosed. It can decrease the contact area between the shaft and the upper and lower bearings.
Description
Technical field
The present invention relates to a kind of structure that reduces the compressor frictional loss, particularly relating to a kind of dividing plate in rotating shaft is subjected to the driving of mechanism portion and in the cylinder in-block inner space in rotation and the pressurized gas process, can makes the structure of the minimizing compressor frictional loss that acts on the frictional loss minimum that rotating shaft gas compression power radially produces.
Background technique
In general, compressor is the machine of compressed fluid.Its usually by seal container with regulation inner space, be installed in mechanism portion that driving force can be provided in the seal container and drive the compression mechanical part of pressurized gas to form by mechanism portion.Structure difference according to compression mechanical part can be divided into compressor rotary compressor, reciprocal compressor and screw compressor.The inventor once applied for the patent of the compressor aspect different with the conventional compression mode.Fig. 1, Fig. 2, Fig. 3 are respectively compression mechanical part forward sectional drawing, planimetric map and cut-away section stereogram in the compressor of inventor's patent applied for.As Fig. 1, Fig. 2, shown in Figure 3, the compression mechanical part of compressor comprises cylinder in-block D with inner space and suction passage f1 and the discharge route f2 that communicates with cylinder in-block inner space V respectively, and inserts and run through the rotating shaft 20 that is fixed on the fit D of seal container 10 cylinder groups center.Rotating shaft 20 is to combine with the mechanism portion M that driving force is provided.Cylinder in-block D is had circular through hole by inside cylinder 30 forms cylinder in-block inner space V and supports the upper bearing 40 of rotating shaft 20 and lower bearing 50 to constitute together with the top and bottom that are combined in cylinder 30 and with one.Upper bearing 40 and lower bearing 50 extend and support part with certain altitude and external diameter 42,52 that forms and the shaft insertion hole 43,53 that forms in the perforation of the center of support part 42,52 and sheet metal 41,51 constitute by the sheet metal 41,51 with certain thickness and area with along this sheet metal 41,51 1 sides.Sheet metal 41 on the upper bearing 40 has inserted rotating shaft 20 in its shaft insertion hole 43 when covering cylinder 30 1 sides; And the sheet metal 51 on the lower bearing 50 has also inserted rotating shaft 20 in its shaft insertion hole 53 when covering cylinder 30 another sides.Rotating shaft 20 has the certain external diameter and the length of regulation, and it is by being inserted in the axial region 21 in the shaft insertion hole on upper bearing 40 and the lower bearing 50 43,53 and constituting along the dividing plate 22 that cylinder in-block inner space V can be divided into the 1st, 2 SPACE V 1, V2 that a side of axial region 21 extends to form.Dividing plate 22 in the rotating shaft 20 is for having certain thickness round structure, observe from the side, it is by the convex curved surface r1 with convex surface and the concave curved surface r2 with concave surface and be connected convex curved surface r1 and the curved face part r3 that is connected of concave curved surface r2 constitutes, promptly, dividing plate 22 is the sinusoidal waveform curved surface, and its convex curved surface r1 and concave curved surface r2 have 180 ° phase difference.And, along with the rotation of dividing plate 22 can convert the 1st, 2 SPACE V 1, V2 to the blade 70 of suction area V1a, V2a and compressing area V1b, V2b on the upper bearing 40 and lower bearing 50 of cylinder in-block D.That is, blade 70 is arranged on the upper and lower sides of dividing plate 22, can be inserted in the upper bearing 40 of cylinder in-block D and the blade groove on the lower bearing 50 44,54 to install.And, but on cylinder in-block D, also be provided with switch discharge route f2 and output at the compressing area V1b of the 1st, 2 SPACE V 1, V2, the construction of switch 80 that V2b is compressed gas, and on seal container 10, also be provided with the suction pipe 90 that communicates with suction passage f1.Unaccounted symbol 100 expression elasticity supporting structures, 110 expression bafflers.
The compression mechanical part working procedure of this compressor is as follows: at first, rotating shaft 20 is rotated under the driving of mechanism portion M, thereby the dividing plate 22 that drives in the rotating shaft 20 rotates in the V of cylinder in-block inner space.Fig. 4, Fig. 5 are compression mechanical part working procedure planimetric map in the compressor of inventor's patent applied for.As shown in Figure 4, when the head end position of dividing plate 22 r1 of upper convex surface portion is in the position a1 of blade 70 in the 1st SPACE V 1 and the 2nd SPACE V 2, the 1st SPACE V 1 stops to suck and pressurized gas, and the suction area V2a of the 2nd SPACE V 2 when sucking gas in compressing area V2b pressurized gas; And when dividing plate 22 rotates to as shown in Figure 5 position, the head end of dividing plate 22 concave curved surface r2 will be in the position a1 of the 1st SPACE V 1 and the 2nd SPACE V 2 intra vanes 70, this moment the 1st SPACE V 1 suction area V1a when sucking gas at compressing area V1b pressurized gas, and the 2nd SPACE V 2 stops to suck and pressurized gas.Be that dividing plate 22 whenever rotates a circle, the 1st, 2 SPACE V 1, V2 compress the process of discharging again after finishing respectively and once sucking gas, and this process is carried out repeatedly.Simultaneously, in this process, rotation along with rotating shaft 20, gas is compressed in the process in cylinder in-block D, the pressure that is compressed gas in the 1st SPACE V 1 and the 2nd SPACE V 2 can act on the plane of inclination of rotating shaft 20 upper clapboards 22, make rotating shaft 20 axially and radially all be subjected to the effect of power, and this power is born by the inner cylinder and the sheet metal 41,51 of shaft insertion hole 43,53 on upper bearing 40 and the lower bearing 50.Since act on power that rotating shaft 20 footpath makes progress and be by shaft insertion hole 53 inner cylinder of shaft insertion hole 43 inner cylinder of upper bearing 40 and lower bearing 50 and with it the outer cylinder of the rotating shaft 20 of correspondence be in contact with one another and bear, therefore, area of contact between rotating shaft 20 and the upper and lower part bearing 40,50 is strengthened, thereby cause frictional loss and abrasion to increase, compression performance and reliability of products reduce.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of dividing plate in rotating shaft to be subjected to the driving of mechanism portion and in the cylinder in-block inner space, rotate and the pressurized gas process in, can make the structure of the minimizing compressor frictional loss that acts on the frictional loss minimum that rotating shaft gas compression power radially produces.
In order to achieve the above object, has the cylinder in-block that forms confined space by a plurality of upper bearings that are incorporated into the cylinder both sides and lower bearing, and be inserted between the upper bearing of cylinder in-block and the lower bearing and can divide the rotating shaft upper clapboard of cylinder in-block inner space, and by the rotation of rotating shaft in by the cylinder in-block inner space of separator lined in the compressor of pressurized gas, the structure of minimizing compressor of the present invention frictional loss be on the axial region of upper bearing and lower bearing, form can reduce with on, the rubbing contact area of area of contact reduces structure between the lower bearing.
The structure of minimizing compressor provided by the invention frictional loss can the rotating shaft upper clapboard be subjected to mechanism portion driving and in cylinder in-block inner space rotation and pressurized gas process, reduce and be compressed the upper bearing of power effect and the area of contact between lower bearing and the rotating shaft, thereby reduced frictional loss and abrasion between rotating shaft and the upper and lower part bearing, when improving compression performance, can improve reliability of products.
Description of drawings
Be elaborated below in conjunction with the structure of the drawings and specific embodiments to minimizing compressor of the present invention frictional loss.
Fig. 1, Fig. 2, Fig. 3 are respectively compression mechanical part forward sectional drawing, planimetric map and cut-away section stereogram in the compressor of inventor's patent applied for.
Fig. 4, Fig. 5 are compression mechanical part working procedure planimetric map in the compressor of inventor's patent applied for.
Fig. 6, Fig. 7, Fig. 8 are respectively portion of compressor compresses mechanism forward sectional drawing, planimetric map and cut-away section stereogram in the structure of minimizing compressor of the present invention frictional loss.
Fig. 9, Figure 10 are that the structure middle shaft part section of minimizing compressor of the present invention frictional loss is implemented illustration.
Embodiment
By Fig. 6, Fig. 7, Fig. 8 as can be known, compression mechanical part comprises cylinder in-block with inner space and suction passage f1 and the discharge route f2 that communicates with cylinder in-block inner space V respectively, and inserts and run through the rotating shaft 20 that is fixed on the fit D of seal container 10 cylinder groups center.Rotating shaft 20 is to combine with the mechanism portion M that driving force is provided.Cylinder in-block D is had circular through hole by inside cylinder 30 forms cylinder in-block inner space V and supports the upper bearing 40 of rotating shaft 20 and lower bearing 50 to constitute together with the top and bottom that are combined in cylinder 30 and with one.Upper bearing 40 and lower bearing 50 extend and the support part with certain altitude and external diameter 42,52 that forms and run through the shaft insertion hole 43,53 that forms at the center of support part 42,52 and sheet metal 41,51 and constitute by the sheet metal 41,51 with certain thickness and area with along this sheet metal 41,51 1 sides.Sheet metal 41 on the upper bearing 40 has inserted rotating shaft 20 in its shaft insertion hole 43 when covering cylinder 30 1 sides; And the sheet metal 51 on the lower bearing 50 has also inserted rotating shaft 20 in its shaft insertion hole 53 when covering cylinder 30 another sides.Rotating shaft 20 has the certain external diameter and the length of regulation, and it is by being inserted in the axial region 21 in the shaft insertion hole on upper bearing 40 and the lower bearing 50 43,53 and constituting along the dividing plate 22 that the cylinder in-block inner space can be divided into the 1st, 2 SPACE V 1, V2 that a side of axial region 21 extends to form.Dividing plate 22 in the rotating shaft 20 is for having certain thickness round structure, sees on from the side by the convex curved surface r1 with convex surface and the r2 of concave surface portion that possesses concave surface and is connected convex curved surface r1 and the curved face part r3 that is connected of concave curved surface r2 constitutes.That is, dividing plate 22 is the sinusoidal waveform curved surface, and its convex curved surface r1 and concave curved surface r2 have 180 ° phase difference.And, in the shaft insertion hole 43,53 of upper bearing 40 and lower bearing 50, formed on the axial region 21 of rotating shaft 20 can reduce and shaft insertion hole 43,53 inner cylinder between the rubbing contact area of area of contact reduce structure 23.The rubbing contact area reduces the axial region 21 that structure 23 can be positioned at upper bearing 40 or lower bearing 50.The external diameter that the rubbing contact area reduces structure 23 is preferably little than axial region 21, and is the ring-shaped step groove shape with certain width.Fig. 9 implements illustration for rubbing contact area among the present invention reduces structure one.As shown in Figure 9, on the axial region 21 of upper bearing 40 or lower bearing 50, be provided with a plurality of rubbing contact areas and reduce structure 23.Another implements illustration to Figure 10 for rubbing contact area among the present invention reduces structure.As shown in figure 10, on shaft insertion hole 43 on the upper bearing 40 that can insert rotating shaft 20 or shaft insertion hole 53 inner cylinder on the lower bearing 50, formed the rubbing contact area that can reduce and reduced structure 45,55 with the axial region friction.The rubbing contact area reduces structure 45,55 preferably to have than the bigger internal diameter of shaft insertion hole 43,53 and has the ring-shaped step groove shape of certain width.And, along with the rotation of dividing plate 22 can convert the 1st, 2 SPACE V 1, V2 to the blade 70 of suction area V1a, V2a and compressing area V1b, V2b on the upper bearing 40 and lower bearing 50 of cylinder in-block D.That is, blade 70 is arranged on the upper and lower sides of dividing plate 22, can be inserted in the upper bearing 40 of cylinder in-block D and the blade groove on the lower bearing 50 44,54 to install.And, in compressing area V1b, the V2b of the 1st, 2 SPACE V 1, V2, be compressed the construction of switch 80 of gas but also be provided with switch discharge route f2 on the cylinder in-block D and export, and also be provided with the suction pipe 90 that communicates with suction passage f1 on the seal container 10.Not elsewhere specified symbol 100 expression elasticity supporting structures, and 110 expression bafflers.
Below, the working procedure of the structure of minimizing compressor of the present invention frictional loss is described.At first, rotating shaft 20 is rotated under the driving of mechanism portion M, thereby the dividing plate 22 that drives in the rotating shaft 20 rotates in the V of cylinder in-block inner space.Along with the dividing plate in the rotating shaft 20 22 rotates in the V of cylinder in-block inner space, the blade 70 that contacts with dividing plate 22 is also started working, to convert suction area V1a, V2a and compressing area V1b, V2b to by the 1st SPACE V 1 and the 2nd SPACE V 2 that dividing plate 22 is divided, action through construction of switch 80 simultaneously will be drawn into the output of the gas after the compression in the 1st SPACE V 1 and the 2nd SPACE V 2, and such process is carried out repeatedly.And, rotation along with rotating shaft 20, gas is compressed in the process in the 1st SPACE V 1 and the 2nd SPACE V 2 of cylinder in-block D, the pressure that is compressed gas can act on the plane of inclination of rotating shaft 20 upper clapboards 22, make the effect of the power that axially and radially all is subjected to of rotating shaft 20, and this power is born by 43,53 inner cylinder of the shaft insertion hole on upper bearing 40 and the lower bearing 50 and sheet metal 41,51.At this moment, reduce area of contact between shaft insertion hole 43,53 inner cylinder that structure 23,45,55 just can reduce axial region 21 and upper and lower part bearing 40,50 in the rotating shaft 20 at the rubbing contact area that has on shaft insertion hole 43,53 inner cylinder of axial region in the rotating shaft 20 21 or upper and lower part bearing 40,50, thereby reduced frictional loss and loss.
Claims (4)
1, a kind of structure that reduces the compressor frictional loss, be arranged on and have the cylinder in-block that forms confined space by a plurality of upper bearings that are incorporated into the cylinder both sides and lower bearing, and be inserted between the upper bearing of cylinder in-block and the lower bearing and can divide the rotating shaft upper clapboard of cylinder in-block inner space, and in the compressor of pressurized gas, be it is characterized in that in by the cylinder in-block inner space of separator lined by the rotation of rotating shaft: the structure of described minimizing compressor frictional loss is can reduce with last through the last formation of the axial region (21) of upper bearing (40) and lower bearing (50), lower bearing (40,50) the rubbing contact area of area of contact reduces structure (23 between, 45,55).
2, the structure of minimizing compressor according to claim 1 frictional loss is characterized in that: the external diameter that described rubbing contact area reduces structure (23) is littler than axial region (21), and is the ring-shaped step groove shape with certain width.
3, according to the structure of each described minimizing compressor frictional loss in claim 1 or 2, it is characterized in that: can go up at axial region (21) and form a plurality of rubbing contact areas minimizing structures (23).
4, the structure of minimizing compressor according to claim 1 frictional loss is characterized in that: reduce structure (45,55) going up to form on shaft insertion hole (43) on the corresponding upper bearing of axial region (21) (40) and shaft insertion hole (53) inner cylinder on the lower bearing (50) to have than bigger internal diameter of shaft insertion hole (43,53) and rubbing contact area with ring-shaped step groove shape of certain width with rotating shaft (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116633 CN1231679C (en) | 2002-04-15 | 2002-04-15 | Structure for decreasing friction loss of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116633 CN1231679C (en) | 2002-04-15 | 2002-04-15 | Structure for decreasing friction loss of compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1451875A true CN1451875A (en) | 2003-10-29 |
| CN1231679C CN1231679C (en) | 2005-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02116633 Expired - Fee Related CN1231679C (en) | 2002-04-15 | 2002-04-15 | Structure for decreasing friction loss of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1231679C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912806A (en) * | 2015-06-18 | 2015-09-16 | 广东美芝制冷设备有限公司 | Bearing module of compressor and compressor with same |
-
2002
- 2002-04-15 CN CN 02116633 patent/CN1231679C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912806A (en) * | 2015-06-18 | 2015-09-16 | 广东美芝制冷设备有限公司 | Bearing module of compressor and compressor with same |
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| Publication number | Publication date |
|---|---|
| CN1231679C (en) | 2005-12-14 |
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