CN1916424A - Exhaust structure of main bearing and rotation axis in revolve type compressor - Google Patents
Exhaust structure of main bearing and rotation axis in revolve type compressor Download PDFInfo
- Publication number
- CN1916424A CN1916424A CN 200510014759 CN200510014759A CN1916424A CN 1916424 A CN1916424 A CN 1916424A CN 200510014759 CN200510014759 CN 200510014759 CN 200510014759 A CN200510014759 A CN 200510014759A CN 1916424 A CN1916424 A CN 1916424A
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- China
- Prior art keywords
- main bearing
- running shaft
- air outlet
- exhaust structure
- rotary compressor
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Abstract
An air exhaust structure of master bearing and rotary shaft on rotary compressor consists of shell, motor unit, and air cylinder and compression unit. It is featured as forming air exhaust channel connected through to shell internal in rotary shaft, forming air inlet connected through to air exhaust channel at position of master bearing on rotary shaft, forming air outlet connected through to air inlet at rotary shaft on master bearing and connecting this air outlet with air exhaust port formed on master bearing.
Description
Technical field
The present invention relates to a kind of compressor.Particularly relate to and a kind ofly can reduce noise, improve the main bearing of rotary compressor of compressor operating efficient and the exhaust structure of running shaft.
Background technique
Rotary compressor is widely used in various refrigerators, the air-conditioning, rotary compressor sucks the gaseous coolant through evaporator evaporation, after it is compressed to saturation pressure, be discharged into the work system of refrigerant again, rotary compressor is the compressor that can suck and discharge gaseous coolant continuously.
Fig. 1 is the sectional arrangement drawing of existing rotary compressor, and Fig. 2 is the enlarged view of the A part of Fig. 1, and Fig. 3 is the press part among Fig. 1 and the structural representation of rotor and running shaft.
With reference to Fig. 1 and Fig. 2 as can be known, existing rotary compressor comprises: have certain internal volume casing 1, be arranged on the inner motor that produces driving force of casing 1, at the compressor section of the effect lower compression refrigerant gas of motor force, motor comprises: be fixed in the casing 1 stator 2 and in stator 2 rotor rotated 3.Compressor section comprises: be pressed in rotor 3 internal diameters, and the running shaft 4 of eccentric shaft 4a is set at downside, inside has possessed the pressing chamber P that sucks gas and compression, and in pressing chamber P, insert the cylinder 5 of eccentric shaft 4a, utilize when inserting running shaft 4 bolt be combined in cylinder 5 on, downside, the main bearing 7 of supporting rotating shaft 4 and supplementary bearing 8, insert for the cylndrical surface in the pressing chamber P of line contact cylinder 5 among the eccentric shaft 4a of running shaft and roll ring 9 according to what rotation and revolution were carried out in the rotation of running shaft 4, a side that is inserted in cylinder 5 is carried out straight line motion, and its end with roll the catch (not shown) that ring 9 outer cylinder sliding contact is divided into pressing chamber P suction portion and press part.
And, on a side of cylinder 5, be provided with and discharge the discharge port 5a be compressed gas, be provided with in the side of main bearing 7 and discharge the tap hole 7a that port 5a communicates, be discharged to outside discharge tube 10 and be compressed gas upside being provided with of casing 1.
And, on described main bearing 7, be provided with the opening degree of the exhaust valve plate 13 of when the pressure of refrigerant gas reaches certain value, opening described tap hole 7a and restriction expulsion valve 13 and support the snubber 14 of exhaust valve plate 13.
Particularly, exhaust valve plate 13 and snubber 14 are as shown in Figure 2, utilize rigging screw 15 to be fixed on main bearing 7 and the cylinder 5, and rigging screw 15 runs through the pilot hole 13a that forms on the end of exhaust valve plate 13 and snubber 14, the pilot hole 7b that forms on 14a and the main bearing 7 combines with the screw hole 5b that forms on the cylinder 5.
Be provided with the baffler 16 of noise when reducing the refrigerant gas discharge on the top of main bearing 7.
And, the suction port in the side of cylinder 5 has formed refrigerant gas inflow pressing chamber P, and on suction port, be provided with the suction pipe 12 that links to each other with the liquid-storage container 20 of casing 1 side, and the lubricated machine oil of sliding part of on the bottom surface of casing 1, having packed into.
As above the working procedure of the existing rotary compressor of Gou Chenging is as follows.
At first, driven rotary axle 4 rotations when the rotor of motor 3 is connected power supplys, on the eccentric shaft 4a of running shaft 4 rolling ring 9 with the catch state of contact of cylinder 5 under, in pressing chamber P, do off-centre and rotatablely move.
Then, when rolling the eccentric rotation of ring 9, by the Volume Changes in the pressing chamber P, the refrigerant gas of the low-temp low-pressure that will be flowed into by suction pipe 12 and suction port is compressed into high-temperature high-pressure state.
Be compressed gas pressure when surpassing certain limit in the cylinder 5, blocking the exhaust valve plate 13 of the tap hole 7a of main bearing 7 opens, the refrigerant gas of High Temperature High Pressure is expelled in the baffler 16 on main bearing top by discharging port 5a and tap hole 7a, is discharged to casing 1 inside from baffler 16 again.
The refrigerant gas that is discharged to casing 1 inside is through between stator 2 and the rotor 3, and the slit between stator 2 and the casing 1 moves to the top of casing 1.
Then, the refrigerant gas that is expelled to casing 1 top is expelled to the outside of casing 1 by discharge tube 10.
But, at refrigerant gas when the exhaust port of baffler is discharged, shown in the arrow among Fig. 3, the equilibrium block of direct impact rotor 3 of its gas and rotor 3 bottoms, thereby produced impact noise, influenced the performance and the working efficiency that has reduced compressor of compressor.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of and can reduce noise, the main bearing of the rotary compressor of raising compressor operating efficient and the exhaust structure of running shaft.
The technical solution adopted in the present invention is: include housing, be provided with in the housing by stator, be positioned at stator rotor, insert the motor section that the running shaft of rotor center constitutes; By eccentric shaft that is integrally formed and that be positioned at its lower end with running shaft, have pressing chamber and insert the cylinder roll ring and eccentric shaft at pressing chamber, be arranged at the main bearing of cylinder upper and lower end and the press part that is driven by motor section that supplementary bearing constitutes, in running shaft, be formed with the exhaust passage of leading to enclosure interior, on the position that is positioned at main bearing of running shaft, also be formed with the inlet hole that is connected with the exhaust passage; Be formed with the air outlet hole that is connected with the inlet hole of running shaft on main bearing, this air outlet hole is connected with existing exhaust port on the main bearing.
Air outlet hole on the described main bearing is formed on the axle journal of main bearing.
The inlet hole that forms on the described running shaft is formed with more than 3 along the circumference of running shaft.
The air outlet hole that forms on the described main bearing is along the circumference and be formed with 3 or more corresponding with the inlet hole on the running shaft of the axle journal of main bearing.
The main bearing of rotary compressor of the present invention and the exhaust structure of running shaft, by on running shaft and main bearing, being provided with respectively and with the exhaust passage of the cold media air that is interconnected, cold media air is not discharged from the exhaust port of baffler, but discharge from running shaft, so cold media air can not impact the equilibrium block of stator and stator lower end again, thereby avoided the generation of impact noise, improved the working efficiency of compressor.
Description of drawings
Fig. 1 is the sectional arrangement drawing of existing rotary compressor;
Fig. 2 is the enlarged view of the A part of Fig. 1;
Fig. 3 is the press part among Fig. 1 and the structural representation of rotor and running shaft;
Fig. 4 is the structural representation of press part of the present invention and rotor;
Fig. 5 is the A-A schematic cross-section of Fig. 4;
Fig. 6 is the structural representation of compressor block of the present invention.
Wherein:
2: stator 3: rotor
4,24: running shaft 4a: eccentric shaft
5: cylinder 7,27: main bearing
7a: exhaust port 8: supplementary bearing
9: roll ring 25: inlet hole
26: exhaust passage P: pressing chamber
27: axle journal 28: equilibrium block
16,36: baffler 37: air outlet hole
Embodiment
Below, be described with reference to the accompanying drawings the main bearing of rotary compressor of the present invention and the exhaust structure of running shaft.
As Fig. 4, Fig. 5, shown in Figure 6, the main bearing of rotary compressor and the exhaust structure of running shaft, be in its housing, include by stator, be positioned at stator rotor 3, insert the motor section that the running shaft 24 at rotor 3 centers constitutes; By with running shaft 24 eccentric shaft 4a integrally formed and that be positioned at its lower end, have pressing chamber P and insert the cylinder 5 roll ring 9 and eccentric shaft 4a at pressing chamber P, be arranged at the main bearing 27 of cylinder 5 upper and lower ends and the press part that is driven by motor section that supplementary bearing 8 constitutes, in running shaft 24, be formed with the exhaust passage 26 of leading to enclosure interior, on the position that is positioned at main bearing 27 of running shaft 24, also be formed with the inlet hole 25 that is connected with exhaust passage 26, the inlet hole 25 that forms on the described running shaft 24 is formed with more than 3 along the circumference of running shaft 24; Be formed with the air outlet hole 37 that is connected with the inlet hole 25 of running shaft 24 on main bearing 27, this air outlet hole 37 is connected with existing exhaust port 7a on the main bearing 27.Air outlet hole 37 on the described main bearing 27 be formed on the axle journal 27 of main bearing 27 ' on.And, the air outlet hole 37 that forms on the main bearing 27 along the axle journal 27 of main bearing 27 ' circumference and with running shaft 24 on inlet hole 25 corresponding being formed with more than 3.
Because the main bearing of rotary compressor of the present invention and the exhaust structure of running shaft, on running shaft, have the exhaust passage that is connected with the exhaust port of main bearing, make the exhaust port of compressed refrigerant by cylinder and main bearing joint flow directly into exhaust passage in the running shaft, and the exhaust passage in running shaft is discharged to casing inside.The refrigerant gas that is discharged to casing inside passes through again between stator and the rotor, and the slit between stator and the casing moves to the top of casing.Then, the refrigerant gas that is expelled to casing top is expelled to the outside of casing by discharge tube.
Claims (4)
1. the exhaust structure of the main bearing of a rotary compressor and running shaft includes housing (1), is provided with the motor section by running shaft (24) formation at stator (2), the rotor (3) that is positioned at stator (2), insertion rotor (3) center in the housing (1); By integrally formed and that be positioned at its lower end eccentric shaft with running shaft (24) (4a), have pressing chamber (P) and insert the cylinder (5) roll ring (9) and eccentric shaft (4a) at pressing chamber (P), be arranged at the main bearing (27) of cylinder (5) upper and lower end and the press part that is driven by motor section that supplementary bearing (8) constitutes, it is characterized in that, in running shaft (24), be formed with the exhaust passage (26) of leading to enclosure interior, on the position that is positioned at main bearing (27) of running shaft (24), also be formed with the inlet hole (25) that is connected with exhaust passage (26); Be formed with the air outlet hole (37) that is connected with the inlet hole (25) of running shaft (24) on main bearing (27), this air outlet hole (37) is gone up existing exhaust port (7a) with main bearing (27) and is connected.
2. the exhaust structure of the main bearing of rotary compressor according to claim 1 and running shaft is characterized in that, the air outlet hole (37) on the described main bearing (27) is formed on the axle journal (27 ') of main bearing (27).
3. the exhaust structure of the main bearing of rotary compressor according to claim 1 and running shaft is characterized in that, the inlet hole (25) that described running shaft (24) go up to form is formed with more than 3 along the circumference of running shaft (24).
4. the exhaust structure of the main bearing of rotary compressor according to claim 1 and running shaft, it is characterized in that, the air outlet hole (37) that described main bearing (27) go up to form along the circumference of the axle journal (27 ') of main bearing (27) and with running shaft (24) on corresponding being formed with more than 3 of inlet hole (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014759 CN1916424A (en) | 2005-08-18 | 2005-08-18 | Exhaust structure of main bearing and rotation axis in revolve type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014759 CN1916424A (en) | 2005-08-18 | 2005-08-18 | Exhaust structure of main bearing and rotation axis in revolve type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1916424A true CN1916424A (en) | 2007-02-21 |
Family
ID=37737469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510014759 Pending CN1916424A (en) | 2005-08-18 | 2005-08-18 | Exhaust structure of main bearing and rotation axis in revolve type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1916424A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362821A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Hermetic compressor and refrigeration cycle apparatus comprising the hermetic compressor |
| CN105134594A (en) * | 2015-08-24 | 2015-12-09 | 广东美芝制冷设备有限公司 | Rotary compressor |
-
2005
- 2005-08-18 CN CN 200510014759 patent/CN1916424A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362821A (en) * | 2012-03-29 | 2013-10-23 | 三菱电机株式会社 | Hermetic compressor and refrigeration cycle apparatus comprising the hermetic compressor |
| CN105134594A (en) * | 2015-08-24 | 2015-12-09 | 广东美芝制冷设备有限公司 | Rotary compressor |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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Open date: 20070221 |