CN111102193A - Vortex air compressor with floating and pressing movable disc - Google Patents
Vortex air compressor with floating and pressing movable disc Download PDFInfo
- Publication number
- CN111102193A CN111102193A CN202010078338.4A CN202010078338A CN111102193A CN 111102193 A CN111102193 A CN 111102193A CN 202010078338 A CN202010078338 A CN 202010078338A CN 111102193 A CN111102193 A CN 111102193A
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- CN
- China
- Prior art keywords
- air
- floating
- cavities
- movable disc
- pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
Abstract
A vortex air compressor with floating and pressing dynamic disks comprises a dynamic disk (1), a static disk (2) and a main shaft (3), wherein the main shaft is arranged in a bearing seat (4), the movable disc (1) is connected with the main shaft (3), the movable disc (1) is inserted into the static disc (2), the molded lines of the movable disc and the static disc are meshed, the bearing seat is characterized in that a plurality of air cavities (5) are uniformly distributed on the periphery of the bearing seat (4), floating blocks (6) are installed in the air cavities (5), the floating blocks (6) divide the air cavities (5) into pressure cavities and non-pressure cavities, one ends of the floating blocks extend out of the non-pressure cavities of the air cavities (5) to be abutted against the movable disc (1), the pressure cavities of the air cavities (5) are connected with a high-pressure air source through air channels (7), the high-pressure air source acts on one ends of the floating blocks (6) to generate a thrust force, the floating blocks (6) are pushed out of the air cavities and are abutted against the movable disc (1), and the movable disc (1) overcomes the backpressure and is in a floating state just contacting with the. The invention has the advantages of low noise, high efficiency and long service life.
Description
Technical Field
The invention relates to a scroll compressor, in particular to a scroll compressor for a scroll pump, and specifically relates to a scroll air compressor with a floating and pressing movable disc.
Background
At present, the existing scroll air compressor and scroll inflating pump in the market have no floating mechanism of a movable disc or sacrifice the compression ratio of gas, and the floating mechanism is arranged at the central part of the movable disc.
Firstly, the disadvantages of the floating mechanism are avoided:
① the back pressure of the movable disk increases gradually with the increase of the discharge pressure of the compressor, which makes the movable disk not cling to the static disk any more, causing end leakage, reducing the efficiency of the compressor and the discharge capacity.
② the increase of the back pressure of the movable disc can increase the radial stress of the bearing on the back of the movable disc, on one hand, the service life of the bearing is reduced, and on the other hand, the noise and the energy consumption of the bearing are increased.
③ increased bearing friction results in heat build-up affecting the profile engagement of the moving and stationary discs, causing the exhaust temperature to rise.
④ No floating mechanism is needed to open a slot on the top of the dynamic and static disc vortex molded line, and a sealing strip made of high polymer material is put in, which increases the processing difficulty and material cost undoubtedly.
Secondly, the floating mechanism is arranged at the middle position of the movable disc:
① rotary parts such as main shaft are arranged in the middle, and many airtight parts are added on the main shaft, and the airtight parts are easy to damage under the high-speed rotation of the main shaft, which affects the service life of the compressor.
② the air-tight parts are arranged on the main shaft jacket, which increases the cost.
③ the high speed rotation of the main shaft in the back pressure chamber will increase the gas leakage in the back pressure chamber, which is not good for the efficiency of the compressor.
Disclosure of Invention
The invention aims to solve the problems that the efficiency of the existing scroll compressor is reduced because a floating mechanism is arranged at the center of a movable disc by the aid of back pressure of the movable disc, and the problem that the end face seal of the movable disc needs to be increased and the movable disc needs to be frequently replaced inconveniently because the floating mechanism is not arranged, and provides a scroll air compressor which is used for compressing the movable disc in a floating mode and is provided with a back pressure compensation mechanism arranged on the outer side of a bearing seat.
The technical scheme of the invention is as follows:
a vortex type air compressor with a movable disc compressed in a floating mode comprises a movable disc 1, a static disc 2 and a main shaft 3, wherein the main shaft is installed in a bearing seat 4, the movable disc 1 is connected with the main shaft 3, the movable disc 1 is inserted into the static disc 2, and molded lines of the movable disc and the static disc are meshed.
The high-pressure air source is an external air source or a static disc exhaust port.
The number of the air cavities 5 is 3 or more than 3, and the air cavities are uniformly distributed on the outer ring of the bearing seat.
An O-shaped sealing ring 8 is additionally arranged on the floating block 6.
The number of the O-shaped sealing rings 8 on the floating block 6 is two, and the two O-shaped sealing rings are uniformly distributed along the axial direction of the floating block.
A precompression spring is arranged in a pressure cavity of the air cavity 5.
And the top of the molded line of the movable disc 1 is not provided with a sealing strip.
The invention has the beneficial effects that:
the invention solves the problems of end face leakage and main shaft sealing element leakage of a vortex type air compressor and a vortex type inflating pump.
Secondly, because the invention can not use the end face sealing strip, has solved the maintenance and cost problem of the end face sealing strip.
The invention solves the problems of bearing noise, abrasion and exhaust temperature rise caused by back pressure.
Fourthly, the invention solves the problems of maintenance and replacement of the bearing and the service life of the compressor.
The invention enables the movable disc to float, and reduces the problem of power consumption increase caused by friction of the movable disc and the fixed disc and friction of the bearing.
Drawings
Fig. 1 is a schematic perspective exploded view of the present invention.
Fig. 2 is a schematic view of the assembled structure of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1-2.
A vortex air compressor with a floating and pressing movable disc comprises a movable disc 1, a static disc 2 and a main shaft 3, wherein the main shaft is arranged in a bearing seat 4, the movable disc 1 is connected with the main shaft 3, the movable disc 1 is inserted into the static disc 2, the molded lines of the movable disc and the static disc are meshed, at least three air cavities 5 are uniformly distributed on the periphery of the bearing seat 4, a slider 6 is arranged in each air cavity 5, two or more O-shaped sealing rings 8 are additionally arranged on each slider, the air cavities 5 are divided into a pressure cavity and a non-pressure cavity by the sliders 6, one end of each slider extends out of the non-pressure cavity of the air cavity 5 to be abutted against the movable disc 1, the pressure cavity of the air cavity 5 is connected with a high-pressure air source (which can be an external high-pressure air source or a static disc exhaust port) through a pipeline through an air channel 7, the high-pressure air source acts at one end of, the movable disc 1 is made to overcome the back pressure and is in a floating state just contacting the stationary disc 2. A precompression spring is arranged in a pressure cavity of the air cavity 5. And the top of the molded line of the movable disc 1 is not provided with a sealing strip.
The working principle of the invention is as follows:
the invention arranges a plurality of air cavities and air channels at the periphery of the bearing seat. The spring is firstly put in the air cavity, and then the floating block is embedded (the O-shaped ring is used for sealing). The gas channel is connected with the exhaust port of the compressor or other gas sources, so that pressure is formed in the gas cavity formed by the bearing seat and the floating block to push the floating block to be tightly attached to the movable scroll. The back pressure generated by the air compressed by the movable scroll is offset, and the movable scroll is in a floating state just contacting with the fixed scroll by controlling the air pressure. Improve the air tightness of the movable vortex plate and the fixed vortex plate and reduce the adverse effect caused by back pressure. Finally, the problems of end face leakage and main shaft sealing element leakage are solved. And the end face sealing strip is omitted, and the problems of maintenance and cost of the end face sealing strip are solved. The problems of bearing noise, abrasion and exhaust temperature rise caused by back pressure are solved. The movable disc is floated, friction between the movable disc and the fixed disc is reduced, and the problem of power consumption increase caused by bearing friction is solved.
As can be seen from figure 1, the three air cavities and the floating blocks are distributed on the periphery, which does not affect the arrangement and the operation of parts such as a middle main shaft, a main counterweight 9 and the like, can ensure the integrity of molded lines of a movable disc and a static disc, and does not affect the exhaust pressure of the compressor.
As can be seen from figure 2, the three air cavities of the bearing seat are connected with the exhaust port 10 or an external high-pressure air source through the air channels, and the floating blocks are pushed to be tightly attached to the movable scroll under the action of high-pressure air in the air cavities, so that the back pressure generated by the compressed air of the movable scroll is offset, the movable scroll is in a floating state just contacting with the fixed scroll, the end face sealing performance of the movable scroll and the fixed scroll is improved, and the adverse effect caused by the back pressure is reduced.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (7)
1. A vortex air compressor with a movable disc compressed in a floating mode comprises the movable disc (1), a static disc (2) and a main shaft (3), wherein the main shaft is installed in a bearing seat (4), the movable disc (1) is connected with the main shaft (3), the movable disc (1) is inserted into the static disc (2), and molded lines of the movable disc and the static disc are meshed with each other, the vortex air compressor is characterized in that a plurality of air cavities (5) are uniformly distributed on the periphery of the bearing seat (4), floating blocks (6) are installed in the air cavities (5), the air cavities (5) are divided into pressure cavities and non-pressure cavities by the floating blocks (6), one ends of the floating blocks extend out of the non-pressure cavities of the air cavities (5) to be abutted against the movable disc (1), pressure cavities of the air cavities (5) are connected with a high-pressure air source through an air passage (7), the high-pressure air source acts on one end of the floating blocks (6, the movable disc (1) overcomes the back pressure and is in a floating state just contacting with the static disc (2).
2. The orbiting plate floating compression scroll air compressor as claimed in claim 1, wherein said high pressure air source is an external air source or a stationary plate discharge port.
3. The orbiting plate floating compression scroll air compressor according to claim 1, wherein the number of the air chambers (5) is 3 or more, and they are uniformly distributed on the outer race of the bearing housing.
4. The orbiting plate floating compression scroll air compressor as claimed in claim 1, wherein the floating block (6) is additionally provided with an O-ring (8).
5. The orbiting plate floating compression scroll air compressor according to claim 4, wherein the number of the O-rings (8) of the slider (6) is two, and the two O-rings are uniformly distributed in the axial direction of the slider.
6. The orbiting plate floating compression scroll air compressor according to claim 1, wherein a pre-compression spring is installed in the pressure chamber of the air chamber (5).
7. The orbiting plate floating compression scroll air compressor as claimed in claim 1, wherein the profile top of the orbiting plate (1) is free of a sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078338.4A CN111102193A (en) | 2020-02-03 | 2020-02-03 | Vortex air compressor with floating and pressing movable disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010078338.4A CN111102193A (en) | 2020-02-03 | 2020-02-03 | Vortex air compressor with floating and pressing movable disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111102193A true CN111102193A (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010078338.4A Pending CN111102193A (en) | 2020-02-03 | 2020-02-03 | Vortex air compressor with floating and pressing movable disc |
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| Country | Link |
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| CN (1) | CN111102193A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354974A (en) * | 2020-10-27 | 2021-02-12 | 南京迪升动力科技有限公司 | Vortex type flushing device for numerical control machine tool |
| WO2023202674A1 (en) * | 2022-04-20 | 2023-10-26 | 广东美的环境科技有限公司 | Stationary scroll plate applied to scroll compressor, and scroll compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929790A (en) * | 1982-08-11 | 1984-02-17 | Hitachi Ltd | Scroll type hydraulic machine |
| JPS60108581A (en) * | 1983-11-15 | 1985-06-14 | Matsushita Refrig Co | Scroll type compressor |
| JPS6198988A (en) * | 1984-10-20 | 1986-05-17 | Tokico Ltd | Scroll type compressor |
| JPH0378586A (en) * | 1989-08-21 | 1991-04-03 | Daikin Ind Ltd | Scroll type fluid device |
| KR20030044241A (en) * | 2001-11-29 | 2003-06-09 | 주식회사 롤텍 | Back Pressure Structure of Scroll Compressor |
| CN101749235A (en) * | 2009-12-22 | 2010-06-23 | 大连三洋压缩机有限公司 | Scroll compressor with floating disc |
| CN105840504A (en) * | 2016-06-16 | 2016-08-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor |
-
2020
- 2020-02-03 CN CN202010078338.4A patent/CN111102193A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929790A (en) * | 1982-08-11 | 1984-02-17 | Hitachi Ltd | Scroll type hydraulic machine |
| JPS60108581A (en) * | 1983-11-15 | 1985-06-14 | Matsushita Refrig Co | Scroll type compressor |
| JPS6198988A (en) * | 1984-10-20 | 1986-05-17 | Tokico Ltd | Scroll type compressor |
| JPH0378586A (en) * | 1989-08-21 | 1991-04-03 | Daikin Ind Ltd | Scroll type fluid device |
| KR20030044241A (en) * | 2001-11-29 | 2003-06-09 | 주식회사 롤텍 | Back Pressure Structure of Scroll Compressor |
| CN101749235A (en) * | 2009-12-22 | 2010-06-23 | 大连三洋压缩机有限公司 | Scroll compressor with floating disc |
| CN105840504A (en) * | 2016-06-16 | 2016-08-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354974A (en) * | 2020-10-27 | 2021-02-12 | 南京迪升动力科技有限公司 | Vortex type flushing device for numerical control machine tool |
| WO2023202674A1 (en) * | 2022-04-20 | 2023-10-26 | 广东美的环境科技有限公司 | Stationary scroll plate applied to scroll compressor, and scroll compressor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200505 |
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| RJ01 | Rejection of invention patent application after publication |